Electronics Forum | Tue Dec 31 13:44:57 EST 2002 | burb1999
Does anybody know of a manufacturer of board stiffeners to put on the edges of PCBs when there going through the oven? I have seen some that C-clamp on the edges which I would prefer but don't have any info on them.. Thanx, Todd
Electronics Forum | Fri Aug 17 08:37:47 EDT 2001 | jbieber
Gregory, I think that the profile is too radical, i.e. zone 6 to zone 7 temperatures are too far apart. I would guess that the solderjoints have not all reached 183C in zone 6 which is why the uBGA's do not have a symmetrical ball collapse. You may
Electronics Forum | Tue Aug 07 08:20:47 EDT 2001 | CPI
Are there other components on the board? If so, how does solder quality look on them? Are they all reflowing? Are the sections of the uBGA�s sitting on a ground plane? Sounds like un-even heating. You should attach a couple thermal couples and see h
Electronics Forum | Thu May 27 16:23:12 EDT 2004 | davef
Process Trials Procedures. Standard trials are often conducted on reflow ovens by production engineers during product assessment, machine approval or in process set-up. The following trials are also used by machine suppliers during equipment develop
Electronics Forum | Thu Mar 23 14:17:47 EST 2000 | Finepitch Services
Stuart, My suggestion is a DFM meeting (most of the process people dream about a meeting like this, and luckily, I've been to a few) with: - project manager (if there's one) - customer service rep (annual volume, lot size, product life) - smt proce
Electronics Forum | Thu Mar 23 14:17:47 EST 2000 | Finepitch Services
Stuart, My suggestion is a DFM meeting (most of the process people dream about a meeting like this, and luckily, I've been to a few) with: - project manager (if there's one) - customer service rep (annual volume, lot size, product life) - smt proce
Electronics Forum | Tue Jun 11 12:15:27 EDT 2019 | sumote
Consider an adjustable (or fixed) process carrier then. It could offset the board so that your component is better centered. I have used Pentagon EMS for such carriers in the past. They are pricey, but last forever. We were a contract house, so the c
Electronics Forum | Mon Jun 10 08:51:01 EDT 2019 | don_julio
Thank you Clare. After doing some more research, I found they are known in the industry as "Carriers". I did look into that durostone material. They prices are beyond reasonable. My trek now is seeking a material to make planks out of to lay the b
Electronics Forum | Mon Jun 10 09:12:18 EDT 2019 | pcbconnectchina
Hello! Don, Yes, if the carrier is steel/stainless, it would be very hot when it comes out from oven. I heard that durostone (synthetic stone) carrier can meet your requirement, it can stand high temperature with low thermal transmission. So when it
Electronics Forum | Thu Jun 13 11:19:13 EDT 2019 | etmpalletguy
Reach out to me Don, I build this type of tooling on a daily basis. these are known as Pallet carrier trays, custom Matrix trays, etc, etc... Very common in this day & age. ETM SOLDER PALLET DUDE.
