Hello all:

请教大家,PCB生产工艺中有哪些环节会造成如下图所示的白色胶状物的不良.(我们现在SMT生产过程中发现很多这种不良,而且有些引起多锡了,所以现在觉得应该是PCB来料就有的)
谢谢大家!


[cid:501201005@15042011-0150]

Best Regards!
Leo Wang (王晓金)
* * * * * * * * * * * * * * * * * * * * * * *
RBAC/MOE2.3-AE
Bosch Automotive Products (Suzhou) Co., Ltd.
No.126,Su Hong Xi Road , Suzhou Industrial Park , China
Tel : +86 (512) 67677281
Email :[log in to unmask]
[cid:501201005@15042011-0157]




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