Electronics Forum | Mon Mar 16 08:44:42 EDT 2015 | davef
The environment of a burn-in chamber is specific. That environment has a fairly well defined affect on the metal contacts of a burn-in socket. Test socket cleaners are tailored for those specific requirements. Look at the MSDS for the WS flux and th
Electronics Forum | Wed Jun 06 02:57:37 EDT 2001 | kyaw
I have a problem run in Burn-in-Board that the sockets lead are deform and lifted about 6 mil to 10 mil from PCBA. Anybody can inform to me for this problem. Thank you
Electronics Forum | Mon Dec 01 14:40:54 EST 2008 | snaggletooth
DC powered Power-up and ageing burn-in equipment, preferably non-product specific, starting from room temperature down to -41 degrees celcius and up to +71 celcius at a rate of 7 celcius per minute. But anyone who could suggest a manufacturer would b
Electronics Forum | Fri Mar 02 15:52:19 EST 2001 | jagman
This happens to be after the water wash process. These are Burn-In boards so an SMT epoxy is used prior to wave. The flux used is Kester 2331ZX. Would using a thinner cause this to occur? The residue is all over the board. Thanks.
Electronics Forum | Tue Jun 21 11:46:04 EDT 2005 | kenscj
Hi dave, Thanks for the comment. I have another issue. The board already pass Test and Burn-In processes, but after 2 months the BGA contact is found open (no contact on certain balls). How can that happen? Is it during build, the solder ball alrea
Electronics Forum | Mon Oct 02 14:59:29 EDT 2006 | jbecircuits
Ooops sorry! Has anyone ever had a problem with using FR4 for a burn-in board? We suggested using Nelco or getek, but will FR4 have any problems in the assembly area through the solder wave?
Electronics Forum | Wed Dec 03 08:51:47 EST 2008 | mrmaint
Try looking at Chart Industries. They offer HASS/HALT chambers that are capable of reaching the paramaters that you are looking for. Will require a nitrogen supply for the cooling end.We had a 3000gal tank of liquid nitrogen to feed two chambers.
Electronics Forum | Thu Dec 04 11:29:24 EST 2008 | pbarton
We use Sharetree equipment for this task. Good for up to around 30 deg. c per minute ramps if required with liquid Nitrogen cooling.
Electronics Forum | Thu Dec 04 12:17:15 EST 2008 | jdumont
We have a couple of Qualmark HALT/HASS chambers here. Never had a problem with either.
Electronics Forum | Thu Sep 02 20:39:39 EDT 2010 | Jacki
Hi davf Our process is the manufacturing burn-in-bord, SMT,insert sockets, wave and touch up. 1 board needs 0.1UF about 3k+ components.Kemet recommanded to use the reflow machine for Ceramic Cap when i chked its website.
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