Electronics Forum: fr4 moisture (56)

HASL, shelf life, IPC standards

Electronics Forum | Wed May 03 16:37:10 EDT 2017 | charliedci

I don't believe there should be any issues with the HASL finish. The issue is how long on the shelf and is a bake out required to remove moisture from PCB, as in any FR4 PCB's that may have had time to absorb moisture.

Re: TCE for Ais

Electronics Forum | Thu Jun 25 11:47:39 EDT 1998 | Steve A

| Hi there, | Does any one know what is TCE for fully wet saturated FR4. I came to know that for Dry FR4 the TCE is about 15-19 PPM �C. Is that true? | | Appreciated for your help. | rgs, | chiakl Chiakl, It looks like you are speaking of what could

Industry News: fr4 moisture (3)

Typical RoHS Issues in PCB Assembly

Industry News | 2018-10-18 10:23:07.0

Typical RoHS Issues in PCB Assembly

Flason Electronic Co.,limited

Krayden Introduces Dow Corning’s 3140 RTV Aerospace Coating

Industry News | 2010-10-20 18:55:44.0

Krayden, Inc., a leading distributor of engineered materials, introduces Dow Corning’s 3140 RTV Aerospace Coating.

Krayden Inc.

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