Category:PCB PCB Industry Information

Group Administrators: 1 | Group Member: 148 | Group Threads: 374

This Group provides continually the latest information on the most recent trends, forecasts and analysis in the printed circuit board space.

Thread Reply
Saponifier needed to stop Reply 2017-02-02 02:57:20
352 views
4 comments
25 likes

Carl

Leave A Message

Follow

I am looking to learn of possible causes and solutions for the following problem.
A potential customer is demanding that I use a saponifier in the aqueous wash, he has lab test results of former CM's products that leads him to believe it is necessary.
The problem is at a PGA socket, its growing oxidation on the contacts. This has been verified by a independent lab using an environmental chamber. The product is an industrial computer PCBA that is expected to have a 7-10 year working life.
The customer claims that DI water alone is not good enough. I normally operate at 18 Megohms resistivity with my water. He wants to add the saponifier, thinking its a detergent that cleans better. I think the saponifier is acting like a coating, leaving a residual film that stops or slows down the oxidation of the socket leads.
All information you can share would be greatly appreciated.
25 likes
Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

jackheaton

Leave A Message

Follow

Your post answered my questions. Thanks a lot.

Carr

Leave A Message

Follow

A good and help piece of info.

Augus

Leave A Message

Follow

Inictllgenee and simplicity – easy to understand how you think.

Alston

Leave A Message

Follow

Inictllgenee and simplicity – easy to understand how you think.
ThreadReply