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] ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________