Category:PCB PCB Manufacturing

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PCB manufacturing consists of many steps, such as PCB CAM, Panelization, Copper patterning, etc. This group is mainly talked about the problems during PCB manufacturing!

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De-wetting on Immersion Silver finish board Reply 2017-02-02 03:49:06
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filippo.lalli

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One of our divisions is having this problem:
- De-wetting on the smt pads and componenent termination on the bottom side after top side procssed through reflow. Board finish is immersion silver.
? Any recommendation on what we should check & verify * Problem is random in nature. Not component related * De-wetting only on the bottom side after top side reflow * De-wetting only on chip components/pads * There are vias on pads but the problem is not correlated with these pads * No apparent contamination on the pads * Have not verified the immersion silver thickness
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Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

izzetulus

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very useful informations.

dmtan90

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Appreciate your sharing.Please keep up your updates.

Alessio Gandini

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Pretty good and useful info to my job. Keep on checking your post.

Burnell

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I am a new beginner and looking for good info for study. The posted info is pretty good. I will share it with my friends.
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