Electronics Forum | Wed Dec 19 14:41:47 EST 2007 | gersla
Dear Steve. We are EMS company and we are getting wide range of components from our customers. Some of them came in trays, that can withstand up to 75 degree maximum. If someone will not pay attention to this the tray get damaged (if there is some Q
Electronics Forum | Wed Apr 06 04:18:03 EDT 2011 | emmanueldavid
TK, Hope you got it right only for this round of assemblies. Well, passing through a Reflow belt is not an ultimate process to dry circuit cards & take out moisture from Solder finished layers. First of all, if the packs were not unsealed (even s
Electronics Forum | Mon Jan 07 13:09:35 EST 2008 | stevek
As I told you, some carriers (trays) are limited > to 75 degree maximum, and from time to time > employees do not pay attention to this. This is > one of the reasons. The second reason is that 90 > degree still be problematic in a case of rebake
Electronics Forum | Mon Sep 12 20:24:26 EDT 2022 | stephendo
I'll answer the easy part. If you put low temperature trays in the oven at 120C, they will warp and partially melt. I have seen it more often with reels of LEDs. Someone is told to bake them before use so the put them in the batch oven and the next
Electronics Forum | Wed Sep 29 07:28:04 EDT 1999 | Wolfgang Busko
3�C/min) or maximum temperature (~240-250�C)." For the correct handling of moisture sensitive devices and prebaking advices see IPC-SM-786A or newer publikations. I encountered the following: A tray of sample BGAs was send to me proper packed and se
Electronics Forum | Wed Feb 06 19:28:43 EST 2002 | sleech
I agree with Francois. We have just announced a 55 deg. C LTVP drying process that can greatly speed moisture removal. It is also effective for drying components that remain in tape and reel, conductive plastic shipping tubes or trays. Process time
Electronics Forum | Thu Apr 11 14:20:29 EDT 2002 | sleech
We have just introduced a new drying process that operates at only 55 deg. C and has proven to be able to drive moisture from tape and reeled devices or compontents in shipping tubes as effectively or more effectively as a convection oven at 125 deg
Electronics Forum | Mon Aug 14 20:37:03 EDT 2006 | davef
JEDEC defines packaging, matrix trays, tape and reel, and like whatnot. You need to be searching ANSI and IPC. Find these documents: * ANSI/J-STD-020, Moisture/Reflow Sensitivity Classification for Plastic Integrated Circuit Surface Mount Devices *
Electronics Forum | Sun Aug 27 20:30:53 EDT 2006 | darby
AJ, We use all ENIG boards. After opening, any remaining boards are kept in low humidity keeping cabinet. I have never experienced a problem using this method I think the longest I have kept them this way is eighteen months. We also store any open tr
Electronics Forum | Thu Dec 20 01:22:41 EST 2007 | gersla
As I told you, some carriers (trays) are limited to 75 degree maximum, and from time to time employees do not pay attention to this. This is one of the reasons. The second reason is that 90 degree still be problematic in a case of rebake more then 3
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