Electronics Forum: immersion (Page 1 of 83)

About immersion tin

Electronics Forum | Mon Oct 06 09:55:35 EDT 2003 | davef

While you are waiting for others to reply, search the fine SMTnet Archives on: * immersion and tin * imm and tin

immersion Gold life span

Electronics Forum | Mon Jan 08 03:16:12 EST 2007 | oswald5087

hi' i need advise on immersion gold PCb shelf life. 1) what is the issue shelf life or expire for Immersion gold PCB? 2) How long we can keep the PCB? (with vacuum seal and without vacuum seal) 2) iF PCB expire, can we bake the immersion PCB? what t

About immersion tin

Electronics Forum | Sun Oct 05 06:37:41 EDT 2003 | christ

Hi all: I want to know the parameter and criterion about the process of immersion tin,could you be kindly to give me the hins about it in more detail.Thank you for your support. Best wishes christ

Board with immersion Tin

Electronics Forum | Mon Nov 25 07:58:27 EST 2002 | Yannick

Hi, I made a board wich I plated with immersion Tin, I tought it should be the same result as we had with tin lead but we ran into a weird problem. WE use a 63/37 no clean paste and on the Board with Immersion Tin the solder just make a ball ON

About immersion tin

Electronics Forum | Wed Oct 08 06:55:36 EDT 2003 | christ

Hi Dave: Thanking in advance for your valuable response!

PCB immersion silver discolouration

Electronics Forum | Tue Sep 23 10:06:29 EDT 2008 | Sean

Hello Vlad, Davef, Your valuable inputs are much appreciated. Many thanks, Sean.

White tin immersion finish

Electronics Forum | Wed Jul 29 13:44:45 EDT 1998 | David Spilker

We are investigating alternatives to HASL finishes for more dense PWBs. OSP is not a good choice because of low solid flux and possibly long shelf life. Immersion gold is expensive and so far has been more difficult to wave solder. Has anyone had

PCB immersion silver discolouration

Electronics Forum | Sat Sep 20 07:11:28 EDT 2008 | Sean

Hello All, I used to hear that PCB with immersion silver finishing, its non component location pads, tend to be discolour (Yellowish) after went through heat cycle, such as reflow oven. However, if the component solderbility on the PCB is OK, can w

Pcb immersion tin thickness

Electronics Forum | Wed Aug 09 08:06:07 EDT 2006 | davef

See "IPC-4554 Specification for Immersion Tin Plating for Printed Circuit Boards" 3.2.1 Immersion Tin Thickness. The most common reason for solderability issues with the white tin surface coating during multiple thermal excursions is a thin white ti

Pcb immersion tin thickness

Electronics Forum | Mon Aug 07 09:04:09 EDT 2006 | molos21

Hi everyone, I am starting to use the lead free process and I had a few wetting problems (solder did not reach top side) at the wave soldering process once the pcb had passed our smt line (one heat pass). From what I understand, I have had a problem

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