PCB線路板過孔對信號傳輸?shù)挠绊懽饔?/title> <meta name="keywords" content="線路板|電路板|PCB" /> <meta name="description" content="過孔(via)是多層PCB線路板的重要組成部分之一,鉆孔的費(fèi)用通常占PCB制板費(fèi)用的30%到40%。簡單的說來,PCB上的每一個(gè)孔都可以稱之為過孔。" /> <script src="/JS/MobileRewrite.js" type="text/javascript"></script><script type="text/javascript">uaredirect("/Mobile/MArticles/pcbxianlubanlbgkdx_1_page1.html");</script> <link href="/Skins/default/resetcommon.css" rel="stylesheet" type="text/css" /> <link href="/Skins/default/Style.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="/JS/NSW_Details.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http:///">国产999精品成人网站,国产一级a毛一级a看免费视频 ,伊人色综合久久天天网,最新精品国产自偷在自线</a></h1> <div id="nhd7h" class="pl_css_ganrao" style="display: none;"><ruby id="nhd7h"></ruby><div id="nhd7h"></div><dl id="nhd7h"><thead id="nhd7h"></thead></dl><strong id="nhd7h"></strong><optgroup id="nhd7h"><ins id="nhd7h"></ins></optgroup><style id="nhd7h"><var id="nhd7h"><pre id="nhd7h"><listing id="nhd7h"></listing></pre></var></style><pre id="nhd7h"></pre><menuitem id="nhd7h"><ol id="nhd7h"><optgroup id="nhd7h"><output id="nhd7h"></output></optgroup></ol></menuitem><font id="nhd7h"><progress id="nhd7h"><sup id="nhd7h"><strong id="nhd7h"></strong></sup></progress></font><rp id="nhd7h"></rp><listing id="nhd7h"><em id="nhd7h"></em></listing><label id="nhd7h"><ruby id="nhd7h"></ruby></label><em id="nhd7h"></em><p id="nhd7h"><th id="nhd7h"><b id="nhd7h"><legend id="nhd7h"></legend></b></th></p><progress id="nhd7h"><label id="nhd7h"></label></progress><small id="nhd7h"></small><ins id="nhd7h"><pre id="nhd7h"><style id="nhd7h"><th id="nhd7h"></th></style></pre></ins><b id="nhd7h"><progress id="nhd7h"><sup id="nhd7h"><label id="nhd7h"></label></sup></progress></b><form id="nhd7h"><ins id="nhd7h"></ins></form><address id="nhd7h"><p id="nhd7h"><nobr id="nhd7h"><small id="nhd7h"></small></nobr></p></address><u id="nhd7h"><ruby id="nhd7h"><form id="nhd7h"><legend id="nhd7h"></legend></form></ruby></u><em id="nhd7h"><div id="nhd7h"></div></em><div id="nhd7h"><strong id="nhd7h"></strong></div><form id="nhd7h"><output id="nhd7h"><sub id="nhd7h"><p id="nhd7h"></p></sub></output></form><label id="nhd7h"><th id="nhd7h"></th></label><u id="nhd7h"><mark id="nhd7h"></mark></u><nobr id="nhd7h"><b id="nhd7h"><progress id="nhd7h"><sup id="nhd7h"></sup></progress></b></nobr><progress id="nhd7h"><sup id="nhd7h"><strong id="nhd7h"><ruby id="nhd7h"></ruby></strong></sup></progress><em id="nhd7h"><strike id="nhd7h"></strike></em><i id="nhd7h"></i><label id="nhd7h"></label><legend id="nhd7h"></legend><font id="nhd7h"><legend id="nhd7h"></legend></font><thead id="nhd7h"><thead id="nhd7h"></thead></thead><label id="nhd7h"></label><p id="nhd7h"><nobr id="nhd7h"><b id="nhd7h"><meter id="nhd7h"></meter></b></nobr></p><strong id="nhd7h"><form id="nhd7h"></form></strong><tt id="nhd7h"><div id="nhd7h"><dl id="nhd7h"><i id="nhd7h"></i></dl></div></tt><strong id="nhd7h"><small id="nhd7h"></small></strong><label id="nhd7h"><u id="nhd7h"></u></label><listing id="nhd7h"><tt id="nhd7h"><big id="nhd7h"><ol id="nhd7h"></ol></big></tt></listing><i id="nhd7h"><listing id="nhd7h"><tt id="nhd7h"><menuitem id="nhd7h"></menuitem></tt></listing></i><video id="nhd7h"></video><tt id="nhd7h"></tt><font id="nhd7h"><legend id="nhd7h"></legend></font><big id="nhd7h"><dl id="nhd7h"></dl></big><dfn id="nhd7h"><menuitem id="nhd7h"></menuitem></dfn><tt id="nhd7h"></tt><mark id="nhd7h"></mark><sup id="nhd7h"><strong id="nhd7h"><rp id="nhd7h"><thead id="nhd7h"></thead></rp></strong></sup><form id="nhd7h"><legend id="nhd7h"><dfn id="nhd7h"><dfn id="nhd7h"></dfn></dfn></legend></form><font id="nhd7h"><progress id="nhd7h"><acronym id="nhd7h"><strong id="nhd7h"></strong></acronym></progress></font><pre id="nhd7h"><style id="nhd7h"></style></pre><form id="nhd7h"><legend id="nhd7h"><listing id="nhd7h"><tt id="nhd7h"></tt></listing></legend></form><output id="nhd7h"><pre id="nhd7h"></pre></output><i id="nhd7h"><track id="nhd7h"></track></i><pre id="nhd7h"></pre><pre id="nhd7h"><style id="nhd7h"></style></pre><var id="nhd7h"><small id="nhd7h"></small></var><mark id="nhd7h"><form id="nhd7h"><legend id="nhd7h"><dfn id="nhd7h"></dfn></legend></form></mark><u id="nhd7h"><mark id="nhd7h"><span id="nhd7h"><legend id="nhd7h"></legend></span></mark></u><strike id="nhd7h"></strike><rp id="nhd7h"><font id="nhd7h"><legend id="nhd7h"><label id="nhd7h"></label></legend></font></rp><thead id="nhd7h"></thead><legend id="nhd7h"><listing id="nhd7h"><tt id="nhd7h"><big id="nhd7h"></big></tt></listing></legend><dl id="nhd7h"><i id="nhd7h"></i></dl><div id="nhd7h"><strong id="nhd7h"><optgroup id="nhd7h"><output id="nhd7h"></output></optgroup></strong></div><p id="nhd7h"><nobr id="nhd7h"></nobr></p><ol id="nhd7h"><form id="nhd7h"><output id="nhd7h"><address id="nhd7h"></address></output></form></ol><p id="nhd7h"><th id="nhd7h"></th></p><i id="nhd7h"><video id="nhd7h"></video></i><rp id="nhd7h"></rp><thead id="nhd7h"><listing id="nhd7h"><dfn id="nhd7h"><big id="nhd7h"></big></dfn></listing></thead><strong id="nhd7h"><mark id="nhd7h"><span id="nhd7h"><legend id="nhd7h"></legend></span></mark></strong><ins id="nhd7h"></ins><var id="nhd7h"><small id="nhd7h"></small></var><style id="nhd7h"></style><nobr id="nhd7h"></nobr><address id="nhd7h"><style id="nhd7h"></style></address><dfn id="nhd7h"><menuitem id="nhd7h"></menuitem></dfn><dl id="nhd7h"><pre id="nhd7h"></pre></dl><var id="nhd7h"><small id="nhd7h"></small></var><video id="nhd7h"><sub id="nhd7h"></sub></video><dfn id="nhd7h"></dfn><style id="nhd7h"></style><ol id="nhd7h"><optgroup id="nhd7h"><output id="nhd7h"><sub id="nhd7h"></sub></output></optgroup></ol><form id="nhd7h"><i id="nhd7h"><track id="nhd7h"><em id="nhd7h"></em></track></i></form><sup id="nhd7h"><u id="nhd7h"></u></sup><mark id="nhd7h"></mark><var id="nhd7h"></var><optgroup id="nhd7h"><output id="nhd7h"></output></optgroup><form id="nhd7h"><ins id="nhd7h"><pre id="nhd7h"><style id="nhd7h"></style></pre></ins></form><p id="nhd7h"><nobr id="nhd7h"><b id="nhd7h"><progress id="nhd7h"></progress></b></nobr></p><acronym id="nhd7h"></acronym><form id="nhd7h"><legend id="nhd7h"></legend></form><acronym id="nhd7h"></acronym><th id="nhd7h"></th><font id="nhd7h"><legend id="nhd7h"><label id="nhd7h"><u id="nhd7h"></u></label></legend></font><tt id="nhd7h"><big id="nhd7h"></big></tt><label id="nhd7h"><u id="nhd7h"><ruby id="nhd7h"><form id="nhd7h"></form></ruby></u></label></div>  <div id="lnpvltfprd" class="t_bg"> <div id="lnpvltfprd" class="header"> <div id="lnpvltfprd" class="h_top"> <div id="lnpvltfprd" class="sp1"> <span id="commonHeaderGuest"><a href="/user/register.aspx">注冊會員</a><a href="/user/login.aspx">會員登錄</a></span><span id="commonHeaderUser" style="display: none;">歡迎：<a href="/user"><span id="commonHeaderUsername"></span></a><a href="/user/login.aspx?action=logout">退出</a></span> <a href="javascript:void(0);" onclick="javascript:addBookmark(this)">加入收藏</a><a href="/sitemap.html" target="_blank">網(wǎng)站地圖</a><a href="/Helps/sljj.html" target="_blank">聯(lián)系深聯(lián)</a> <a class="nobor">English</a></div> 您好，歡迎來到深聯(lián)電路官網(wǎng)！ </div> <div id="lnpvltfprd" class="h_con"> <h1> <a href="/"> <img src="http:///UploadFiles/Others/20220725083701_13541.png" alt="深聯(lián)電路" title="深聯(lián)電路" /></a></h1> <p> <b><span>18年</span>專注<span>PCB</span>研發(fā)制造</b>行業(yè)科技創(chuàng)新領(lǐng)跑者</p> <q><i><span>全國咨詢熱線 : </span>4000-169-679</i> <ul> <li><a title="深聯(lián)HDI網(wǎng)站">深聯(lián)HDI網(wǎng)站</a></li> <li><a title="深聯(lián)FPC網(wǎng)站">深聯(lián)FPC網(wǎng)站</a></li> <li><a href="/Website.html" title="深聯(lián)快消電子類PCB網(wǎng)站">深聯(lián)快消電子類PCB網(wǎng)站</a></li> </ul> <em><a href="/"> <img src="/Skins/Default/Img/Common/h_dd.gif" alt="訂單查詢" title="訂單查詢" /></a><a href="/"><img src="/Skins/Default/Img/Common/h_pj.gif" alt="客戶評價(jià)" title="客戶評價(jià)" /></a></em> </q> </div> <div id="lnpvltfprd" class="h_nav menu"> <ul><li><a href="http:///" title="深聯(lián)首頁">深聯(lián)首頁</a></li><li><a href="http:///sltxpcb.html" title="通訊PCB">通訊PCB</a></li><li><a href="http:///slqcpcb.html" title="汽車PCB">汽車PCB</a></li><li><a href="http:///slylpcb.html" title="醫(yī)療PCB">醫(yī)療PCB</a></li><li><a href="http:///sldypcb.html" title="電源PCB">電源PCB</a></li><li><a href="http:///slgkpcb.html" title="工控PCB">工控PCB</a></li><li><a href="http:///slafpcb.html" title="安防PCB">安防PCB</a></li><li><a href="http:///sljgpcb.html" title="金屬基PCB">金屬基PCB</a></li><li><a href="http:///sldt.html" title="深聯(lián)動態(tài)">深聯(lián)動態(tài)</a></li><li><a href="http:///jszc.html" title="技術(shù)支持">技術(shù)支持</a></li><li id="lnpvltfprd" class="nobor"><a href="http:///sljj.html" title="關(guān)于深聯(lián)">關(guān)于深聯(lián)</a></li></ul> </div> </div> </div> <div id="lnpvltfprd" class="ss"> <div id="lnpvltfprd" class="seachbg"> <div id="lnpvltfprd" class="seach"> <p> <b>熱門關(guān)鍵詞：</b> <a target='_blank' href=http://http:///sljj.html title='多層線路板廠'>多層線路板廠</a><a target='_blank' href=http:///jszc.html title='PCB設(shè)計(jì)'>PCB設(shè)計(jì)</a><a target='_blank' href=http:///jszc.html title='PCB板制作流程'>PCB板制作流程</a><a target='_blank' href=http:///sldt.html title='線路板廠'>線路板廠</a><a target='_blank' href=http:///product/ title='電路板廠'>電路板廠</a><a target='_blank' href=http:///hyzx.html title='PCB板材質(zhì)'>PCB板材質(zhì)</a></p> <div id="lnpvltfprd" class="s_b"> <input type="text" value="請輸入搜索關(guān)鍵詞" class="s_01" id="seachkeywords"> <input type="image" src="/Skins/Default/Img/Common/s_s.gif" onclick="xuanze()"> </div> </div> </div> </div>  <script type="text/javascript"> initCommonHeader(); </script> <script type="text/javascript"> var OBJ_TITLE = "PCB線路板過孔對信號傳輸?shù)挠绊懽饔?; var OBJ_ID = "1415"; var MARK = "news"; var ARR_AD_MARK = ["news_detail_1", "news_detail_2", "news_detail_3"]; var SID = "0001,0025,0037"; //權(quán)限ID var AUTHORITY_ID = ""; </script> <script src="/JS/Cls_jsPage.js"></script>  <div id="lnpvltfprd" class="topadcs"> <a class="fullad" href="/product/" title="深聯(lián)電路技術(shù)支持" style="background:url(/UploadFiles/Others/20220620103015_17270.png) no-repeat center top;"></a> </div> <div id="lnpvltfprd" class="content"> <div id="lnpvltfprd" class="plc2" id="herf"> 當(dāng)前位置：<a href="/" title="首頁">首頁</a>» <a href="http:///jszc.html" title="技術(shù)支持">技術(shù)支持</a> » <a href="/Article/pcbxianlubanlbgkdx_1.html" title="PCB線路板過孔對信號傳輸?shù)挠绊懽饔?>PCB線路板過孔對信號傳輸?shù)挠绊懽饔?/a></div> <a id="alink" href="#herf" style="visibility: hidden; display:none;"><span id="spanId">PCB線路板過孔對信號傳輸?shù)挠绊懽饔?/span></a> <script type="text/javascript"> $("#spanId").click(); </script> <div id="lnpvltfprd" class="left2"> <div id="lnpvltfprd" class="left2top"> </div> <div id="lnpvltfprd" class="left2_main"> <div id="lnpvltfprd" class="n_info_con" id="printableview"> <h1> PCB線路板過孔對信號傳輸?shù)挠绊懽饔?/h1> <div id="lnpvltfprd" class="info_con_tit"> <div id="lnpvltfprd" class="info_con_tit"> <div id="lnpvltfprd" class="n_tit"> <span>文章出處：百能網(wǎng)</span><span>責(zé)任編輯：龔愛清</span><span id="lnpvltfprd" class='m_qrinfo'><a href="http:///Mobile/MArticles/pcbxianlubanlbgkdx_1_page1.html" title="查看手機(jī)網(wǎng)址">查看手機(jī)網(wǎng)址</a><div id="lnpvltfprd" class='m_qrcode'><em>掃一掃!</em><img src="http://nswcode.nsw88.com/?qc=8dd84307afe274a5&url=http:///Mobile/MArticles/pcbxianlubanlbgkdx_1_page1.html" alt="PCB線路板過孔對信號傳輸?shù)挠绊懽饔? title="PCB線路板過孔對信號傳輸?shù)挠绊懽饔? /><em>掃一掃!</em></div></span><span>人氣：<span id="cntrHits">-</span></span><span>發(fā)表時(shí)間：2016-12-08 10:09【<a href="javascript:;" onclick="ChangeFontSize(this,'16px')">大</a> <a class="cur" href="javascript:;" onclick="ChangeFontSize(this,'14px')">中</a> <a href="javascript:;" onclick="ChangeFontSize(this,'12px')">小</a>】</span> </div> </div> </div> <div class="lnpvltfprd" id="cntrBody"> <p style="text-indent: 2em; text-align: left;">過孔(via)是多層PCB<a href="http:///product/" target="_self">線路板</a>的重要組成部分之一，鉆孔的費(fèi)用通常占PCB制板費(fèi)用的30%到40%。簡單的說來，PCB上的每一個(gè)孔都可以稱之為過孔。</p><p style="text-indent: 2em; text-align: left;"><br/></p><p style="text-align:center"><img src="/UploadFiles/FCK/2016-12/6361678877500858854438955.jpg" title="PCB線路板過孔對信號傳輸?shù)挠绊懽饔? width="500" height="376" border="0" hspace="0" vspace="0" alt="PCB線路板過孔對信號傳輸?shù)挠绊懽饔? style="width: 500px; height: 376px;"/></p><p style="text-indent: 2em; text-align: left;"><br/></p><p style="text-indent: 2em; text-align: left;">一、過孔的寄生電容 </p><p style="text-indent: 2em; text-align: left;">過孔本身存在著對地的寄生電容，如果已知過孔在鋪地層上的隔離孔直徑為D2,過孔焊盤的直徑為D1,PCB板的厚度為T,板基材介電常數(shù)為ε,則過孔的寄生電容大小近似于：C=1.41εTD1/(D2-D1)過孔的寄生電容會給電路造成的主要影響是延長了信號的上升時(shí)間，降低了電路的速度。舉例來說，對于一塊厚度為50Mil的PCB板，如果使用內(nèi)徑為10Mil，焊盤直徑為20Mil的過孔，焊盤與地鋪銅區(qū)的距離為32Mil,則我們可以通過上面的公式近似算出過孔的寄生電容大致是：C=1.41x4.4x0.050x0.020/(0.032-0.020)=0.517pF，這部分電容引起的上升時(shí)間變化量為：T10-90=2.2C(Z0/2)=2.2x0.517x(55/2)=31.28ps 。從這些數(shù)值可以看出，盡管單個(gè)過孔的寄生電容引起的上升延變緩的效用不是很明顯，但是如果走線中多次使用過孔進(jìn)行層間的切換，設(shè)計(jì)者還是要慎重考慮的。 </p><p style="text-indent: 2em; text-align: left;">二、過孔的寄生電感 </p><p style="text-indent: 2em; text-align: left;">同樣，過孔存在寄生電容的同時(shí)也存在著寄生電感，在高速數(shù)字電路的設(shè)計(jì)中，過孔的寄生電感帶來的危害往往大于寄生電容的影響。它的寄生串聯(lián)電感會削弱旁路電容的貢獻(xiàn)，減弱整個(gè)電源系統(tǒng)的濾波效用。我們可以用下面的公式來簡單地計(jì)算一個(gè)過孔近似的寄生電感：L=5.08h[ln(4h/d)+1]其中L指過孔的電感，h是過孔的長度，d是中心鉆孔的直徑。從式中可以看出，過孔的直徑對電感的影響較小，而對電感影響最大的是過孔的長度。仍然采用上面的例子，可以計(jì)算出過孔的電感為：L=5.08x0.050[ln(4x0.050/0.010)+1]=1.015nH。如果信號的上升時(shí)間是1ns,那么其等效阻抗大小為：XL=πL/T10-90=3.19Ω。這樣的阻抗在有高頻電流的通過已經(jīng)不能夠被忽略，特別要注意，旁路電容在連接電源層和地層的時(shí)候需要通過兩個(gè)過孔，這樣過孔的寄生電感就會成倍增加。 </p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">三、高速PCB中的過孔設(shè)計(jì) </span></p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">通過上面對過孔寄生特性的分析，我們可以看到，在高速PCB設(shè)計(jì)中，看似簡單的過孔往往也會給電路的設(shè)計(jì)帶來很大的負(fù)面效應(yīng)。為了減小過孔的寄生效應(yīng)帶來的不利影響，在設(shè)計(jì)中可以盡量做到： </span></p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">1、從成本和信號質(zhì)量兩方面考慮，選擇合理尺寸的過孔。比如對6-10層的內(nèi)存模塊PCB設(shè)計(jì)來說，選用10/20Mil(鉆孔/焊盤)的過孔較好，對于一些高密度的小尺寸的板子，也可以嘗試使用8/18Mil的過孔。目前技術(shù)條件下，很難使用更小尺寸的過孔了。對于電源或地線的過孔則可以考慮使用較大尺寸，以減小阻抗。 </span></p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">2、上面討論的兩個(gè)公式可以得出，使用較薄的PCB板有利于減小過孔的兩種寄生參數(shù)。 </span></p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">3、電源和地的管腳要就近打過孔，過孔和管腳之間的引線越短越好，因?yàn)樗鼈儠?dǎo)致電感的增加。同時(shí)電源和地的引線要盡可能粗，以減少阻抗。</span></p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">4、PCB板上的信號走線盡量不換層，也就是說盡量不要使用不必要的過孔。 </span></p><p style="text-indent: 2em; text-align: left;"><span style="text-indent: 2em;">5、在信號換層的過孔附近放置一些接地的過孔，以便為信號提供最近的回路。甚至可以在PCB板上大量放置一些多余的接地過孔。當(dāng)然，在設(shè)計(jì)時(shí)還需要靈活多變。前面討論的過孔模型是每層均有焊盤的情況，也有的時(shí)候，我們可以將某些層的焊盤減小甚至去掉。特別是在過孔密度非常大的情況下，可能會導(dǎo)致在鋪銅層形成一個(gè)隔斷回路的斷槽，解決這樣的問題除了移動過孔的位置，我們還可以考慮將過孔在該鋪銅層的焊盤尺寸減小。 </span></p> </div> <div id="lnpvltfprd" class="clear"> </div> <div id="lnpvltfprd" class="apage" id="showfenye">  <script type="text/javascript"> var pagecont=1; if(pagecont >= 2) { var ss = new Cls_jsPage(1, 1, 5, "ss"); ss.setPageSE("pcbxianlubanlbgkdx_", ".html"); ss.setPageInput("Page"); ss.setUrl(""); ss.setPageFrist("<a disabled='true'class='ob'>首頁</a>", "首頁"); ss.setPagePrev("<a disabled='true'class='ob'>上一頁</a>", "上一頁"); ss.setPageNext("<a disabled='true'class='ob'>下一頁</a>", "下一頁"); ss.setPageLast("<a disabled='true'class='ob'>尾頁</a>", "尾頁"); ss.setPageText("{$PageNum}", "{$PageNum}"); ss.setPageTextF("{$PageTextF}", "{$PageTextF}"); ss.setPageSelect("{$PageNum}", "{$PageNum}"); ss.setPageCss("o", "", ""); ss.setHtml("<div id="lnpvltfprd" class='o'>{$PageFrist}{$PagePrev}{$PageText}{$PageNext}{$PageLast}</div>"); ss.Write(); } else { document.getElementById("showfenye").style.display="none"; } </script>  </div> <div id="lnpvltfprd" class="gduo" id="gduo"> <span>下一篇：<a title="如何“與時(shí)俱進(jìn)”地處理PCB表面工藝？" href="http:///Article/rhysjjdclp_1.html">如何“與時(shí)俱進(jìn)”地處理PCB表面工藝？</a></span>上一篇：<a title="細(xì)述PCB電路板布局布線基本規(guī)則" href="http:///Article/xspcbdlbbj_1.html">細(xì)述PCB電路板布局布線基本規(guī)則</a> </div> </div> <div id="lnpvltfprd" class="info_key"> <span>此文關(guān)鍵字：</span><a target='_blank' href="/Search/Index.aspx?kwd=%e7%ba%bf%e8%b7%af%e6%9d%bf" class="mr" >線路板</a> <a target='_blank' href="/Search/Index.aspx?kwd=%e7%94%b5%e8%b7%af%e6%9d%bf" class="mr" >電路板</a> <a target='_blank' href="/Search/Index.aspx?kwd=PCB" class="mr" >PCB</a> </div> <div id="lnpvltfprd" class="comments" style=" border:none;"> <h4> 共有<span id="spCommentCount">-</span>條評論<a href="#aPostComment">【我要評論】</a></h4> <div class="lnpvltfprd" id="divComments" class="ml10 mt10"> <img src="/Skins/default/Img/processing_2.gif" alt="正在加載..." /></div> <div id="lnpvltfprd" class="info_pl"> <a target="_blank" href="http:///tools/comment.aspx?oid=1415&mark=news"> 查看全部評論</a></div> </div> <div id="lnpvltfprd" class="info_fb" style=" border:none;"> <table width="100%" border="0" id="tbCmt"> <tr> <td width="12%" class="td_b tr"> 我要評論: </td> <td width="88%"> </td> </tr> <tr> <td class="tr vat"> 內(nèi) 容： </td> <td> <textarea id="txtCmtContent" cols="80" rows="5"></textarea><br> （內(nèi)容最多500個(gè)漢字，1000個(gè)字符） </td> </tr> <tr> <td class="tr vat"> 驗(yàn)證碼： </td> <td> <input type="text" size="30" id="txtCmtVerCode" onfocus="showVerifyCode('spCmtVerCode','spCmtVerCodeMsg','imgCmtVerCode','spCmtChgVerCode')" /> <cite><span id="spCmtVerCode"></span><span id="spCmtVerCodeMsg" class="hd"></span><a id="spCmtChgVerCode" class="p hd" href="###" onclick="changeVerCode('imgCmtVerCode','spCmtVerCodeMsg')"> 看不清？！</a></cite> </td> </tr> <tr> <td> </td> <td> <input type="button" class="b13" value="發(fā) 表" onclick="postComment(this,1415,'news')" /> <input type="button" onclick="emptyText('tbCmt')" class="b13" value="重填" /> </td> </tr> </table> </div> <script type="text/javascript"> $(".left2_main").find("div.info_key").find("a:last").addClass("notmr");</script> <div id="lnpvltfprd" class="n_info_con2"> <h4 class="t04"> 相關(guān)資訊</h4> <div id="lnpvltfprd" class="info_b"> <ul class="p_list_ul"> <li><a target='_blank' href='http:///Article/xlbrhyxqcd_1.html' title='線路板如何影響汽車的性能、效率和安全性？'>線路板如何影響汽車的性能、效率和安全性？</a></li><li><a target='_blank' href='http:///Article/5gxlbcyzgz_1.html' title='5G線路板廠一張高質(zhì)量電路板是怎么做出來的？'>5G線路板廠一張高質(zhì)量電路板是怎么做出來的？</a></li><li><a target='_blank' href='http:///Article/xlbzylxyzd_1.html' title='線路板在醫(yī)療行業(yè)中的應(yīng)用有哪些？'>線路板在醫(yī)療行業(yè)中的應(yīng)用有哪些？</a></li><li><a target='_blank' href='http:///Article/whqcxlbknh_1.html' title='為何汽車線路板可能會出現(xiàn)故障？'>為何汽車線路板可能會出現(xiàn)故障？</a></li><li><a target='_blank' href='http:///Article/article-32261513051_1.html' title='汽車通訊模塊線路板廠講汽車PCB缺陷的補(bǔ)償辦法'>汽車通訊模塊線路板廠講汽車PCB缺陷的補(bǔ)償辦法</a></li><li><a target='_blank' href='http:///Article/5gxlbcjnzd_1.html' title='5G線路板廠講你知道PCB線路板的工作原理與組成嗎?'>5G線路板廠講你知道PCB線路板的工作原理與組成嗎?</a></li><li><a target='_blank' href='http:///Article/xnyqcdcbxl_1.html' title='新能源汽車電池包線路板廠淺析電動汽車電池包低壓線束設(shè)計(jì)及制造'>新能源汽車電池包線路板廠淺析電動汽車電池包低壓線束設(shè)計(jì)及制造</a></li><li><a target='_blank' href='http:///Article/smsxnyqcdc_1.html' title='什么是新能源汽車電池包線路板標(biāo)準(zhǔn)通孔尺寸？'>什么是新能源汽車電池包線路板標(biāo)準(zhǔn)通孔尺寸？</a></li><li><a target='_blank' href='http:///Article/nzdxlbcynx_1.html' title='你知道線路板廠有哪些部門負(fù)責(zé)的嗎？'>你知道線路板廠有哪些部門負(fù)責(zé)的嗎？</a></li><li><a target='_blank' href='http:///Article/5gxlbczskh_1.html' title='5G線路板廠之SK海力士HBM需求暴增 ,AI巨頭排隊(duì)下單!'>5G線路板廠之SK海力士HBM需求暴增 ,AI巨頭排隊(duì)下單!</a></li> </ul> <div id="lnpvltfprd" class="clear"> </div> </div> <div id="lnpvltfprd" class="clear"> </div> </div> <div id="lnpvltfprd" class="n_info_tjcp n_info_con2"> <h4 class="t04"> 推薦產(chǎn)品</h4> <div id="lnpvltfprd" class="info_b"> <dl><dt><a title='汽車新能源銅基板' target="_blank" href='http:///Products/qcxnytjb_1.html'><img title='汽車新能源銅基板' alt='汽車新能源銅基板' src='http:///UploadFiles/Product/20200724165613_25494.png'></a></dt><dd><a title='汽車新能源銅基板' target="_blank" href='http:///Products/qcxnytjb_1.html'>汽車新能源銅基板</a></dd></dl><dl><dt><a title='高頻混壓板' target="_blank" href='http:///Products/gphyb.html'><img title='高頻混壓板' alt='高頻混壓板' src='http:///UploadFiles/Product/20220609153343_41194.jpg'></a></dt><dd><a title='高頻混壓板' target="_blank" href='http:///Products/gphyb.html'>高頻混壓板</a></dd></dl><dl><dt><a title='高頻電源厚銅板' target="_blank" href='http:///gpdypcb/gpdyhtb.html'><img title='高頻電源厚銅板' alt='高頻電源厚銅板' src='http:///UploadFiles/Product/20200724151656_67530.png'></a></dt><dd><a title='高頻電源厚銅板' target="_blank" href='http:///gpdypcb/gpdyhtb.html'>高頻電源厚銅板</a></dd></dl><dl><dt><a title='電源厚銅板' target="_blank" href='http:///dyhtpcb/dyhtb_1_1.html'><img title='電源厚銅板' alt='電源厚銅板' src='http:///UploadFiles/Product/20140814191942_75021.jpg'></a></dt><dd><a title='電源厚銅板' target="_blank" href='http:///dyhtpcb/dyhtb_1_1.html'>電源厚銅板</a></dd></dl> <div id="lnpvltfprd" class="clear"> </div> </div> <div id="lnpvltfprd" class="celar"> </div> </div> </div> <div id="lnpvltfprd" class="left2bot"> </div> </div> <div id="lnpvltfprd" class="right2"> <div id="lnpvltfprd" class="right2top"> </div> <div id="lnpvltfprd" class="right2_main"> <h4 class="t03"> <a href="http:///product/" title="最新產(chǎn)品">最新產(chǎn)品</a></h4> <div class="lnpvltfprd" id="newpro"> </div> <h4 class="t03"> <a href="http:///jszc.html" title="同類文章排行">同類文章排行</a></h4> <ul class="n_rt_ul"> <li><a href='http:///Article/kpjchbmdlb_1.html' target='_blank' title="【科普】檢查和避免電路板短路的方法都有哪些？">【科普】檢查和避免電路板短路的方法都有哪些？</a></li><li><a href='http:///Article/pcbcjdydlz_1.html' target='_blank' title="PCB廠講電源電路中，電感底部需要鋪地嗎？">PCB廠講電源電路中，電感底部需要鋪地嗎？</a></li><li><a href='http:///Article/article-09551400141_1.html' target='_blank' title="汽車無線充電PCB廠講IPC2級和3級標(biāo)準(zhǔn)的差異對比">汽車無線充電PCB廠講IPC2級和3級標(biāo)準(zhǔn)的差異對比</a></li><li><a href='http:///Article/dlbcjfpcrb_1.html' target='_blank' title="電路板廠家FPC軟板和PCB電路板有哪些區(qū)別？">電路板廠家FPC軟板和PCB電路板有哪些區(qū)別？</a></li><li><a href='http:///Article/qcdlbcjrhq_1.html' target='_blank' title="汽車電路板廠講如何區(qū)別化鎳鈀金與電鍍鎳金？">汽車電路板廠講如何區(qū)別化鎳鈀金與電鍍鎳金？</a></li><li><a href='http:///Article/pcbbdcdzdj_1.html' target='_blank' title="PCB板疊層當(dāng)中的“假八層”是什么意思呢？">PCB板疊層當(dāng)中的“假八層”是什么意思呢？</a></li><li><a href='http:///Article/dlbcz10zpc_1.html' target='_blank' title="電路板廠之10種PCB散熱方法解析">電路板廠之10種PCB散熱方法解析</a></li><li><a href='http:///Article/article-93110952121_1.html' target='_blank' title="5G天線PCB廠講PCB電路板的IPC等級到底是什么？">5G天線PCB廠講PCB電路板的IPC等級到底是什么？</a></li><li><a href='http:///Article/xlbcjsjpcb_1.html' target='_blank' title="線路板廠講設(shè)計(jì)PCB都有哪些間距要求？">線路板廠講設(shè)計(jì)PCB都有哪些間距要求？</a></li><li><a href='http:///Article/xlbrhyxqcd_1.html' target='_blank' title="線路板如何影響汽車的性能、效率和安全性？">線路板如何影響汽車的性能、效率和安全性？</a></li> </ul> <h4 class="t03"> <a href="http:///news/" title="最新資訊文章">最新資訊文章</a></h4> <ul class="n_rt_ul" id="cntrLastArticle"> </ul> <h4 class="t03"> 您的瀏覽歷史</h4> <ul class="n_rt_ul" id="divHistoryCntr"> <img src="/Skins/default/Img/processing_3.gif" alt="正在加載..." /> </ul> </div> <div id="lnpvltfprd" class="right2bot"> </div> </div> <div id="lnpvltfprd" class="clear"> </div> </div>   <div id="lnpvltfprd" class="f_bg"> <div id="lnpvltfprd" class="footer"> <div id="lnpvltfprd" class="f_menu"> <a href="http:///" title="深聯(lián)首頁">深聯(lián)首頁</a>|<a href="http:///sltxpcb.html" title="通訊PCB">通訊PCB</a>|<a href="http:///slqcpcb.html" title="汽車PCB">汽車PCB</a>|<a href="http:///slylpcb.html" title="醫(yī)療PCB">醫(yī)療PCB</a>|<a href="http:///sldypcb.html" title="電源PCB">電源PCB</a>|<a href="http:///slgkpcb.html" title="工控PCB">工控PCB</a>|<a href="http:///slafpcb.html" title="安防PCB">安防PCB</a>|<a href="http:///sljgpcb.aspx" title="金屬基PCB">金屬基PCB</a>|<a href="http:///ryzz.html" title="榮譽(yù)資質(zhì)">榮譽(yù)資質(zhì)</a>|<a href="http:///sitemap.html" title="網(wǎng)站地圖" target="_blank">網(wǎng)站地圖</a>|<a href="http:///sljj.html" title="關(guān)于深聯(lián)">關(guān)于深聯(lián)</a></div> <div id="lnpvltfprd" class="f_con"> <h3> <a href="/"> <img src="/Skins/Default/Img/Common/f_logo.jpg" alt="深圳市深聯(lián)電路有限公司" title="深圳市深聯(lián)電路有限公司" /></a></h3> <p> <span>深圳市深聯(lián)電路有限公司 <em>版權(quán)所有</em> <a title="粵ICP備11062779號" target="_blank">粵ICP備11062779號</a><em style="position: absolute;margin-top: 142px;margin-left: -28px;"><script type="text/javascript">var cnzz_protocol = (("https:" == document.location.protocol) ? " https://" : " http://");document.write(unescape("%3Cspan id='cnzz_stat_icon_1253245173'%3E%3C/span%3E%3Cscript src='" + cnzz_protocol + "s5.#/z_stat.php%3Fid%3D1253245173%26show%3Dpic1' type='text/javascript'%3E%3C/script%3E"));</script> <a style="display:none" name="VqbzXQ9TUnCrGlvddzFgJzcfB0K2NyR35jLYXCrN1cKjAG7tIo"><img height="47" src="https://zhanzhang.anquan.org/static/common/images/zhanzhang.png"alt="安全聯(lián)盟站長平臺" /></a> <script type="text/javascript"> var _bdhmProtocol = (("https:" == document.location.protocol) ? " https://" : " http://"); document.write(unescape("%3Cscript src='" + _bdhmProtocol + "#/h.js%3Fb4b69fdac3e412d27047aa642ac57fdf' type='text/javascript'%3E%3C/script%3E")); </script></em></span> <span>公司地址：深圳寶安區(qū)沙井街道錦繡南路和一新達(dá)工業(yè)區(qū) <br />集團(tuán)總部地址：深圳市寶安區(qū)福海街道展景路83號6A-16-17樓 <br />贛州市深聯(lián)電路地址：江西省贛州市章貢區(qū)水西有色冶金基地冶金大道26號 <br />珠海深聯(lián)地址：珠海市斗門區(qū)乾務(wù)鎮(zhèn)融合東路888號 <br />上海銷售公司地址：閔行區(qū)閩虹路166弄城開中心T3-2102 <br />德國辦事處地址：Bodenehrstr. 18，81373 Munich, Germany <br />美國辦事處地址：689, South Eliseo Drive, Greenbrae, CA, 94904, USA <br />日本深聯(lián)地址：東京都千代田區(qū)神田錦町一丁目23番地8號The Sky GranDEAR 三階 </span> <span id="lnpvltfprd" class="tel dh">聯(lián)系電話：4000-169-679<em>傳真：0755-27280699</em></span> <span id="lnpvltfprd" class="yj"> 電子郵箱：emarketing@slpcb.com</span> </p> <i> <img src="/Skins/Default/Img/Common/f_er.gif" alt="深圳市深聯(lián)電路有限公司" title="深圳市深聯(lián)電路有限公司" /></i> <q style="padding-left: 72.5px;; color: #FFF;padding-top: 157px;position: absolute;">深聯(lián)微信公眾號</q> </div> </div> </div>   <footer> <div class="friendship-link"> <p>感谢您访问我们的网站，您可能还对以下资源感兴趣：</p> <a href="http:///" title="国产999精品成人网站">国产999精品成人网站</a> <div class="friend-links"> <a href="http://m.kxhcp.cn/">午夜精品久久久久久久99黑人</a> <a href="http://m.sxhongtu77.com/">少妇扒开腿让我爽了一夜</a> <a href="http://m.komine.com.cn/">97久久精品人人做人人爽</a> <a href="http://m.132311.com.cn/">欧美专区第一页</a> <a href="http://m.idteck.com.cn/">www日本视频</a> <a href="http://m.aticodonostia.com/">高清欧美性猛交XXXX黑人猛交</a> <a href="http://m.xrwqxyh.cn/">overflow在线观看</a> <a href="http://m.dailiqj.cn/">牛牛AV,日本中文字幕一区二区,精品一区二区三区在线观看,91噜噜噜</a> <a href="http://m.46946.cn/"></a> <a href="http://m.gxqiuxue.cn/">国产成人极品在线网站</a> <a href="http://m.1024jrftj.cn/">国产福利一区二区三区在线视频</a> <a href="http://m.73178.cn/"></a> <a href="http://m.52jiazhang.com.cn/">亚洲色人妻</a> <a href="http://m.ohuili.cn/">老太奶性BBWBBW免费看</a> <a href="http://m.doralphonebook.com/">亚洲综合无码精品一区二区三区</a> <a href="http://m.whole-sale.cn/">亚洲午夜精品久久久久久久久</a> <a href="http://m.qdiaosu.com/">91久久精品</a> <a href="http://m.zd007.com/">午夜看片</a> </div> </div> </footer> <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body><div id="rn7pn" class="pl_css_ganrao" style="display: none;"><track id="rn7pn"></track><sup id="rn7pn"><p id="rn7pn"><th id="rn7pn"><b id="rn7pn"></b></th></p></sup><thead id="rn7pn"><thead id="rn7pn"><dfn id="rn7pn"><dfn id="rn7pn"></dfn></dfn></thead></thead><b id="rn7pn"></b><legend id="rn7pn"><listing id="rn7pn"></listing></legend><meter id="rn7pn"><pre id="rn7pn"><style id="rn7pn"><th id="rn7pn"></th></style></pre></meter><font id="rn7pn"><legend id="rn7pn"></legend></font><span id="rn7pn"></span><style id="rn7pn"></style><div id="rn7pn"><ol id="rn7pn"><optgroup id="rn7pn"><video id="rn7pn"></video></optgroup></ol></div><u id="rn7pn"><menuitem id="rn7pn"></menuitem></u><track id="rn7pn"><tt id="rn7pn"></tt></track><strike id="rn7pn"></strike><style id="rn7pn"><rp id="rn7pn"></rp></style><em id="rn7pn"></em><sup id="rn7pn"><style id="rn7pn"></style></sup><label id="rn7pn"><u id="rn7pn"></u></label><form id="rn7pn"><i id="rn7pn"></i></form><th id="rn7pn"></th><label id="rn7pn"></label><sub id="rn7pn"></sub><listing id="rn7pn"><em id="rn7pn"><big id="rn7pn"><ol id="rn7pn"></ol></big></em></listing><small id="rn7pn"><meter id="rn7pn"><acronym id="rn7pn"><strong id="rn7pn"></strong></acronym></meter></small><small id="rn7pn"></small><nobr id="rn7pn"></nobr><ruby id="rn7pn"><span id="rn7pn"></span></ruby><meter id="rn7pn"><sup id="rn7pn"><label id="rn7pn"><ruby id="rn7pn"></ruby></label></sup></meter><pre id="rn7pn"><video id="rn7pn"></video></pre><form id="rn7pn"><thead id="rn7pn"></thead></form><menuitem id="rn7pn"><dl id="rn7pn"></dl></menuitem><sub id="rn7pn"><p id="rn7pn"><var id="rn7pn"><small id="rn7pn"></small></var></p></sub><strong id="rn7pn"><form id="rn7pn"><ins id="rn7pn"><acronym id="rn7pn"></acronym></ins></form></strong><style id="rn7pn"><th id="rn7pn"></th></style><dl id="rn7pn"><pre id="rn7pn"></pre></dl><ruby id="rn7pn"></ruby><listing id="rn7pn"></listing><dfn id="rn7pn"></dfn><thead id="rn7pn"><label id="rn7pn"></label></thead><address id="rn7pn"><style id="rn7pn"></style></address><u id="rn7pn"></u><acronym id="rn7pn"><strong id="rn7pn"><rp id="rn7pn"><form id="rn7pn"></form></rp></strong></acronym><label id="rn7pn"><u id="rn7pn"></u></label><pre id="rn7pn"><style id="rn7pn"></style></pre><span id="rn7pn"><legend id="rn7pn"></legend></span><menuitem id="rn7pn"><ol id="rn7pn"><pre id="rn7pn"><output id="rn7pn"></output></pre></ol></menuitem><u id="rn7pn"><rp id="rn7pn"></rp></u><pre id="rn7pn"></pre><form id="rn7pn"><i id="rn7pn"></i></form><sup id="rn7pn"><u id="rn7pn"></u></sup><strike id="rn7pn"></strike><address id="rn7pn"><style id="rn7pn"><nobr id="rn7pn"><b id="rn7pn"></b></nobr></style></address><style id="rn7pn"><th id="rn7pn"></th></style><sup id="rn7pn"><strong id="rn7pn"><ruby id="rn7pn"><form id="rn7pn"></form></ruby></strong></sup><label id="rn7pn"><u id="rn7pn"></u></label><optgroup id="rn7pn"></optgroup><ruby id="rn7pn"><form id="rn7pn"></form></ruby><font id="rn7pn"><progress id="rn7pn"><sup id="rn7pn"><label id="rn7pn"></label></sup></progress></font><label id="rn7pn"><label id="rn7pn"></label></label><div id="rn7pn"><strong id="rn7pn"><form id="rn7pn"><ins id="rn7pn"></ins></form></strong></div><label id="rn7pn"><dfn id="rn7pn"><mark id="rn7pn"><dl id="rn7pn"></dl></mark></dfn></label><output id="rn7pn"></output><pre id="rn7pn"><style id="rn7pn"></style></pre><dfn id="rn7pn"></dfn><rp id="rn7pn"></rp><mark id="rn7pn"><span id="rn7pn"></span></mark><nobr id="rn7pn"><small id="rn7pn"><meter id="rn7pn"><pre id="rn7pn"></pre></meter></small></nobr><rp id="rn7pn"><font id="rn7pn"></font></rp><th id="rn7pn"></th><u id="rn7pn"></u><dl id="rn7pn"></dl><th id="rn7pn"></th><var id="rn7pn"></var><label id="rn7pn"><u id="rn7pn"></u></label><u id="rn7pn"><mark id="rn7pn"></mark></u><ins id="rn7pn"><pre id="rn7pn"></pre></ins><th id="rn7pn"><font id="rn7pn"></font></th><sup id="rn7pn"><u id="rn7pn"></u></sup><div id="rn7pn"><var id="rn7pn"></var></div><form id="rn7pn"><i id="rn7pn"><listing id="rn7pn"><tt id="rn7pn"></tt></listing></i></form><i id="rn7pn"><track id="rn7pn"></track></i><form id="rn7pn"></form><rp id="rn7pn"></rp><acronym id="rn7pn"></acronym><sub id="rn7pn"><p id="rn7pn"><var id="rn7pn"><b id="rn7pn"></b></var></p></sub><sup id="rn7pn"><strong id="rn7pn"><ruby id="rn7pn"><span id="rn7pn"></span></ruby></strong></sup><em id="rn7pn"><strike id="rn7pn"><strong id="rn7pn"><small id="rn7pn"></small></strong></strike></em><tt id="rn7pn"><mark id="rn7pn"></mark></tt><thead id="rn7pn"><legend id="rn7pn"><listing id="rn7pn"><tt id="rn7pn"></tt></listing></legend></thead><video id="rn7pn"></video><menuitem id="rn7pn"></menuitem><pre id="rn7pn"><video id="rn7pn"><sub id="rn7pn"><strike id="rn7pn"></strike></sub></video></pre><form id="rn7pn"></form><sub id="rn7pn"></sub><listing id="rn7pn"><tt id="rn7pn"><big id="rn7pn"><ol id="rn7pn"></ol></big></tt></listing><strong id="rn7pn"><form id="rn7pn"><meter id="rn7pn"><address id="rn7pn"></address></meter></form></strong><p id="rn7pn"><nobr id="rn7pn"><b id="rn7pn"><progress id="rn7pn"></progress></b></nobr></p><big id="rn7pn"><ol id="rn7pn"><form id="rn7pn"><ins id="rn7pn"></ins></form></ol></big><legend id="rn7pn"><label id="rn7pn"></label></legend><acronym id="rn7pn"><label id="rn7pn"><rp id="rn7pn"><form id="rn7pn"></form></rp></label></acronym><p id="rn7pn"><var id="rn7pn"></var></p></div> </html>  <script src="/JS/rollup.min.js" type="text/javascript"></script>  <script type="text/javascript" id="bdshare_js" data="type=slide&img=2&pos=left&uid=774763"></script> <script type="text/javascript" id="bdshell_js"></script>  <script type="text/javascript" src="https://lead.soperson.com/10033326/10039230.js"></script>  <script>window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"1","bdMiniList":["sqq","weixin","qzone","tsina","tqq","mshare","copy"],"bdPic":"","bdStyle":"0","bdSize":"16"},"slide":{"type":"slide","bdImg":"2","bdPos":"left","bdTop":"250"}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script> <script type="text/javascript" src="http://lead.soperson.com/10033326/10039230.js"></script><script type="text/javascript" src="http://lead.soperson.com/10033326/10039230.js"></script><script type="text/javascript" src="http://lead.soperson.com/10033326/10039230.js"></script><script type="text/javascript" src="http://lead.soperson.com/10033326/10039230.js"></script> <script type="text/javascript"> newsLoad(); initCommonHeaderKeywords(MARK); (function () { var c = null; $(".m_qrinfo").hover(function () { if (c) { clearTimeout(c); c = null; } $(this).children(".m_qrcode").slideDown(); }, function () { var t = this; c = setTimeout(function () { $(t).children(".m_qrcode").slideUp(200); }, 500); }); })();</script>