Electronics Forum | Wed May 23 10:19:18 EDT 2001 | Spanky
I know that OA is water soluable. But what exactly does the acronym "OA" stand for? "Organic something-or-other". I've checked the archive and can only find reference to oa, not what it actually stands for. thanks, spanky
Electronics Forum | Thu Mar 28 13:19:14 EDT 2019 | davef
There is no industry standard for BTC stand-off height. "IPC-7093A Design and Assembly Process Implementation for Bottom Termination SMT (BTC) Components" just finished "Final Draft for Industry Review" in December 2018. It mentions stand-off height
Electronics Forum | Tue Nov 30 11:51:58 EST 1999 | g cronin
i have a large job that has quite a few stand-up axial resistors on it and i am looking for a way to prep them does anyone know of: - a service that does this type of preforming, - a fairly inexpensive machine capable of stand-up preforming please
Electronics Forum | Tue Nov 30 17:00:26 EST 1999 | Dave F
Listed in the archive are suppliers of lead forming equipment. Most have equipment that can do the stand-ups you require. Yes you may be able to find this used. Yes you may be able to find someone with that machine near you who after you buy the t
Electronics Forum | Fri Feb 18 11:31:05 EST 2005 | carterhoward
I agree with stand-alone as well. We're a CM and have three AOI's, we keep them all stand-alone. We use them for paste inspection, first articles off SMT equipment, QC articles from SMT, hand assembly QC, TH first article and TH QC. We treat AOI as
Electronics Forum | Wed Nov 12 04:34:17 EST 2008 | kywl
Hi all, Assuming that i were to design a PCB and there are multiple components, what is the minimum spacing required to ensure that i won't have problems in my SMT process later on? Also, is there a minimum component stand-off height spec as well?
Electronics Forum | Tue Oct 03 11:35:51 EDT 2000 | aaronho
Screen printing has much lower profile than dispensing. So it is suitable for chips without body stand-off, (Even sot23 has stand-off). But is is much faster. Dispensers can not catch up with some chip shooters.
Electronics Forum | Tue May 29 17:04:35 EDT 2001 | pcmarch
I will second the previous answer that it stands for Organic Acid. "Acid" being the key word as to why it must be thoroughly cleaned.
Electronics Forum | Tue May 29 22:07:42 EDT 2001 | Robert Sykoh
OA stands for Organic Activated. In the good old fo SMT processes, a lot of different fluxes are being considered. RA, RMA, OA, etc. If you look at the present no-clean paste, it is actually RMA.
Electronics Forum | Thu Aug 17 23:44:26 EDT 2006 | guest
CBGA stands for Ceramic Ball grid array while PBGA stands for Ceramic Ball grid array. Noticable difference is the substrate used , one is using ceramic and one is using BT laminate. Regards