检修集成电路时的五种拆卸方法

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  • LV3工程师
  • |      2013-11-12 09:44:51
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工程师应该都有这样的切身体会,就是拆卸集成电路或者检修集成电路,这无疑是一件浩大的工程。就是因为集成电路引脚多而且很密,一个不小心,有时甚至还会损害集成电路及电路板。那么如何轻松有效的拆卸集成电路板呢?一位工程师凭借着自己的多年经验总结了几种行之有效的集成电路拆卸方法,供大家参考。

集成电路检修是是一件浩大的工程,因为集成电路引脚多而且很密,拆卸起来十分的困难,甚至有时还会损害集成电路及电路板。如何轻松有效的拆卸集成电路板呢?本文总结了几种行之有效的集成电路拆卸方法,供大家参考。



1、多股铜线吸锡拆卸法:

就是利用多股铜芯塑胶线,去除塑胶外皮,使用多股铜芯丝(可利用短线头)。使用前先将多股铜芯丝 上松香酒精溶液,待电烙铁烧热后将多股铜芯丝放到集成块引脚上加热,这样引脚上的锡焊就会被铜丝吸附,吸上焊锡的部分可剪去,重复进行几次就可将引脚上的焊锡全部吸走。有条件也可使用屏蔽线内的编织线。只要把焊锡吸完,用镊子或小“一”字螺丝刀轻轻一撬,集成块即可取下。

2、吸锡器吸锡拆卸法:

使用吸锡器拆卸集成块,这是一种常用的专业方法,使用工具为普通吸、焊两用电烙铁,功率在35W以上。拆卸集成块时,只要将加热后的两用电烙铁头放在要拆卸的集成块引脚上,待焊点锡融化后被吸入细锡器内,全部引脚的焊锡吸完后集成块即可拿掉。

3、增加焊锡融化拆卸法:

该方法是一种省事的方法,只要给待拆卸的集成块引脚上再增加一些焊锡,使每列引脚的焊点连接起来,这样以利于传热,便于拆卸。拆卸时用电烙铁每加热一列引脚就用尖镊子或小“一”字螺丝刀撬一撬,两列引脚轮换加热,直到拆下为止。一般情况下,每列引脚加热两次即可拆下。

4、医用空心针头拆卸法:

取医用8至12号空心针头几个。使用时针头的内经正好套住集成块引脚为宜。拆卸时用烙铁将引脚焊锡溶化,及时用针头套住引脚,然后拿开烙铁并旋转针头,等焊锡凝固后拔出针头。这样该引脚就和印制板完全分开。所有引脚如此做一遍后,集成块就可轻易被拿掉。

5、电烙铁毛刷配合拆卸法:

该方法简单易行,只要有一把电烙铁和一把小毛刷即可。拆卸集成块时先把电烙铁加热,待达到溶锡温度将引脚上的焊锡融化后,趁机用毛刷扫掉溶化的焊锡。这样就可使集成块的引脚与印制板分离。该方法可分脚进行也可分列进行。最后用尖镊子或小“一”字螺丝刀撬下集成块。

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所有回答 数量:11
格古落 2015-07-26
感谢楼主分享,好人一生平安~

好分享,顶一个!~

但是有几个貌似用起来很麻烦~

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CUIZHUANG 2015-07-16
帮顶一个!!
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茜茜哈哈 2015-06-10
顶一个                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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helen 2015-06-09
谢谢分享!楼主辛苦!
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苦咖啡 2015-06-08
实力派
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ANWCLM 2015-06-03
学习了
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冰山一角 2014-05-20
巡视组来了    果哥要hold住
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悠然南山 2014-03-21
顶楼主,谢谢分享,楼主辛苦!!
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easy 2014-03-20
顶了,谢谢分享!!楼主辛苦!!
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Alax 2014-03-20
顶了,楼主辛苦!!
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