Electronics Forum | Wed Jul 07 13:43:06 EDT 2004 | microniks
Thank you for helping finding a direction for my answer. I found interesting things on fluxes at this site: http://www.smtinfo.net/docs/Electronic%20Production/25.htm Due to the lack of precise and concise information on the subject, I think I will w
Electronics Forum | Mon Apr 25 22:56:44 EDT 2005 | davef
rush316 First, no one stated that PBB and/or PCBE are in FR4. FR4 contain tetra-bromo-bisphenol A [TBBA]. Second, there are classes [and grades] of dielectric materials used in fabricating printed circuit boards. Grades, NEMA LI-1. From these gr
Electronics Forum | Sat Feb 06 16:42:18 EST 2021 | sg7914
Respected all; I am currently a student at RIT and working towards my master's in Manufacturing and Mechanical System Integration with a specialization in Electronics Manufacturing. I came across an interesting topic regarding the tooling and fixt
Electronics Forum | Sat Dec 16 13:18:47 EST 2006 | Ola
Why not? If You think it has a bussiness case so go for it. We are currently using a firm that has 24h delivery time if neccesary (we need to order before 9'clock in the morning)and we once in a while use this for some prototypes. Their regular shipm
Electronics Forum | Tue Dec 13 17:41:04 EST 2011 | davef
A Study Of 0201’s And Tombstoning In Lead-Free Systems, Phase II Comparison Of Final Finishes And Solder Paste Formulations http://sheaengineering.com/Documents/APEX%2008%200201s%20and%20Tombstoning%20phase%202%20paper.pdf CONCLUSION The condition
Electronics Forum | Fri Apr 10 09:59:13 EDT 2020 | spoiltforchoice
> We unfortunately use GERBER data to digitize <BR> > boards more than any CAD. We are CM and many of <BR> > our customers do not provide CAD. With some <BR> > Legacy products, we still use 274-D Gerbers
Electronics Forum | Wed May 22 16:36:13 EDT 2002 | slthomas
What methods do you guys use for maintaining lot and/or board traceability? When I worked in med. products, we used travelers that we recorded everything on, then serialized them at the end of the build. Not as effective as up front serialization,
Electronics Forum | Fri Mar 11 18:47:54 EST 2005 | davef
JD: It's important to note that FR-4 does not contain PBB or PBDE. The bromine in FR-4 epoxy comes in the form of tetra-bromo-bisphenol A [TBBA], which polymerizes and become part of the cross-linked epoxy. Bromine, in the form of hydrogen bromide, i
Electronics Forum | Fri Mar 23 10:26:47 EST 2001 | Andre
Your papers and technical articles are in demand for use with the SMT Express. We would like to offer our readers well-written technical articles covering issues crucial to the SMT industry. Your contributions will help you by making your name know
Electronics Forum | Fri Oct 18 12:40:35 EDT 2013 | robertwillis
Back in the mists of time there were two papers on the use of Parylene Coating and the improved thermal cycling results in 1990. It was on LCCC then shortly after on BGA. Does anyone know of results of recent trials or have a copy of the BGA papers.
