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( 2013-11-22 阅读 2834 )

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<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">制作</span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><a href="http://www.jlc-gw.com"><span style="font-size: small">钢网</span></a></span><span style="font-size: small"><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">的第三种工艺是一种加成工艺</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">最普遍地叫电铸成型。在这个工艺</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">镍沉积在铜质的阴极心上形成开孔。一种光敏干肖片叠层在铜箔上</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">大约<font face="Times New Roman">0.25</font><font face="宋体">厚度</font></span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">胶片用紫外光通过有模板图案的遮光膜进行聚合。经过显影后在铜质心上产生阴极图案。只有模板开孔处保持用光刻胶覆盖</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">。</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">然后在光刻胶的周围通过镀镍形成了模板在达到所希望的模板厚度后</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">把光刻胶从开孔除掉</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">电铸成型的镍箔通过弯曲从铜心上分开。 电铸成形具有独特的密封特性</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">减少锡桥对模板底面的清洁的需要。该工艺提供近乎完美的定位</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">没有几何形状的限制</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">具有内在梯形的光滑孔壁和低表面摩擦力</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">以便于锡膏释放。 其过程如下</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">：</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">通过在一个要形成开孔的基板</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">（</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">或蕊模</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">）</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">上显影光刻胶<font face="Times New Roman">?</font></span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">然后逐个原子、逐层地在光刻胶周围电镀出模板。镍原子被光刻胶偏转</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">产生一个梯形结构</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">。</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">然后</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">当模板从基板取下</span><span style="font-family: '宋体'; mso-spacerun: 'yes'">，</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">顶面变成接触面产生密封效果。可选择<font face="Times New Roman">0.001-0.012//</font><font face="宋体">范围的连续的镍厚度。该工艺适合超密间距</font></span><span style="font-family: '宋体'; mso-spacerun: 'yes'">。</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">例如<font face="Times New Roman">?0.008-0.16?</font><font face="宋体">或者其它应用。它可达到</font><font face="Times New Roman">1</font></span><span style="font-family: '宋体'; mso-spacerun: 'yes'">：</span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">1<font face="宋体">的纵横比。</font></span></span></p>
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<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">电铸</span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><a href="http://www.jlc-gw.com"><span style="font-size: small">钢网</span></a></span><span style="font-size: small"><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">特性</span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">  </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'"> 1<font face="宋体">、采用镍质材料</font><font face="Times New Roman">?</font><font face="宋体">模板表面粘力较小</font><font face="Times New Roman">?</font><font face="宋体">利于焊膏脱模。 </font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">   </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">2<font face="宋体">、模板表面及锥形孔壁便于控制</font><font face="Times New Roman">?</font><font face="宋体">以利于焊球滚动及脱模。</font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">  </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'"> 3<font face="宋体">、极高的位置精度和极底的开孔误差</font><font face="Times New Roman">?</font><font face="宋体">特别适合于超细间距焊盘。 </font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">   </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">4<font face="宋体">、孔壁光滑</font><font face="Times New Roman">?</font><font face="宋体">无需毛刺后工艺工序处理。 </font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">   </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">5<font face="宋体">、比不锈钢板硬度增加</font><font face="Times New Roman">30%?</font><font face="宋体">使用寿命可达</font><font face="Times New Roman">50</font><font face="宋体">万次以上。 A</font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">  </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'"> 6<font face="宋体">、电铸板没有锡球</font><font face="Times New Roman">?</font><font face="宋体">极大地降低了</font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><font face="宋体"><a href="http://www.jlc-gw.com"><span style="font-size: small">钢网</span></a></font></span><span style="font-size: small"><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'"><font face="宋体">清洗的时间和次数。</font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">  </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'"> 7<font face="宋体">、镍质硬度</font><font face="Times New Roman">>500VH</font><font face="宋体">。 </font><font face="Times New Roman">8</font><font face="宋体">、最小开孔尺寸</font><font face="Times New Roman">1mil</font><font face="宋体">。</font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">  </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'"> 9<font face="宋体">、开孔尺寸公差</font><font face="Times New Roman">±0.1mil</font><font face="宋体">。 </font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>
<p style="margin-top: 0pt; margin-bottom: 0pt" class="p0"><span style="font-size: small"><span style="font-family: '宋体'; mso-spacerun: 'yes'">   </span><span style="font-family: 'Times New Roman'; mso-spacerun: 'yes'">10<font face="宋体">、开孔位置核差</font><font face="Times New Roman">±0.1mil</font><font face="宋体">。 </font></span></span><span style="font-family: 'Times New Roman'; font-size: 14pt; mso-spacerun: 'yes'"><o:p></o:p></span></p>

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