Electronics Forum | Thu Mar 29 08:54:50 EST 2001 | neil
The left menu displays the time that the browser window was opened or last refreshed. (notice that it does not tick) This is taken from the server's internal clock. These clocks are notoriously inaccurate. I'm looking into synchronizing the clock aut
Electronics Forum | Sat Mar 31 08:47:24 EST 2001 | davef
Sure, researchers measure shear as an element of their material characterization process, but that does not make it an acceptance test. [Truly, this conversation is not uncommon on SMTnet. So, it would not surprise me if an enterprising something o
Electronics Forum | Wed Apr 04 08:57:13 EDT 2001 | Cal
IPC-TM-650 is a works well. Ionic conductivity is a good rule of thumb but I prefer ION Chromatography this will help determine the residues left behind from the fab process. There are a bunch of ways to determine solderabiltiy- Wet Balance and SERA
Electronics Forum | Wed Apr 04 08:28:27 EDT 2001 | Cal
ZAM_BRI- I don't know how effective this may be but some points to include in the buy-off procedure: Before submitting the PO for the stencil you may also want to do a CAD to Stencil comparison to verify correct apertures.There are SW packages and co
Electronics Forum | Thu Apr 05 10:50:08 EDT 2001 | CAL
Per our staff here at ACI......... Higher Temperatures maybe necessary to achieve good solder process results. The alloy formed when HASL coating protects the copper is the same as that when OSP provide protection. Temperatures may be increased to im
Electronics Forum | Fri Apr 06 08:27:09 EDT 2001 | CAL
From what you are saying................If I hear ya correctly - There is no "Proctective" on the Pads (OSP, HASL....) You will be hard pressed soldering to bare copper. This can not be right. My suggestion- go polyimide with electroptical connecti
Electronics Forum | Fri Apr 06 08:28:34 EDT 2001 | CAL
From what you are saying................If I hear ya correctly - There is no "Protective" on the Pads (OSP, HASL....) You will be hard pressed soldering to bare copper. This can not be right. My suggestion- go polyamide with electroptical connectio
Electronics Forum | Tue Apr 17 08:54:09 EDT 2001 | davef
Process capability indices are pretty well documented. Consider: 1 A good general SPC book like: Statistical Quality Control; EL Grant & RS Leavenworth; Mcgraw-Hill; ISBN 0078443547 2 Other good books are: Statistical Process Control For SMT; WS
Electronics Forum | Thu Aug 16 23:30:02 EDT 2001 | fastek
Not exactly sure what your specific requirements are but I am in the process of clearing out a major OEM's SMT facility. Lots and lots of general production equipment is available such as stencil carts, production benches (with and without lights and
Electronics Forum | Fri Aug 17 06:54:04 EDT 2001 | Binns
I have several carts at my facility, i think we had our machine shop make them a while ago, we can store loaded feeders on the top portion and we can store several screens on the bottom. The idea is to have the days production, if two jobs or more,
