Electronics Forum | Fri Nov 07 09:34:31 EST 2003 | Rodion
Hello, I am writing a software that deals with chip placement on PCB and I would like to know if there is some standart way to describe what are the coordinates of the chips on the pcb, I know that Gerber file contains all the drill holes and tracks,
Electronics Forum | Fri Jan 16 15:31:26 EST 2004 | davef
Bill This drives solder suppliers nuts, because it's not analytic: Dross inclusion testing can be conducted on the base solder in the solder pot and the virgin solder. Conduct this test by heating a sample of solder, contained in a clear beaker,
Electronics Forum | Wed Mar 10 15:09:34 EST 2004 | Jay
You can say "re-flow". It's related with the process. In order to assemble a PC Board containing lots of components such as PTH (Plated Through Hole) and SMT, usually, PTH type packages and components are soldered first using wave soldering process.
Electronics Forum | Tue Feb 08 08:34:01 EST 2005 | siverts
We allow only water in production area; but only ESD-safe containers with a cap, and the owners name on a sticker. The water bottles must not be kept on top of the machines, conveyors or nearby components/pcb:s We think this is no problem at all, a
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 | Fri Jul 08 10:08:12 EDT 2005 | fctassembly
Dear Hiram, Thanks for your interest in SN100C. FCT Assembly is a licensed manufacturer of SN100C from Nihon Superior for North America. We have the alloy in 5 application labs- FCT (CO), Vitronics (NH), Technical Devices (CA), Electrovert (MO), and
Electronics Forum | Tue Jul 26 11:02:30 EDT 2005 | dphilbrick
I have a single sided PCB that contains 4 RF connectors that will require conformal coating. Sounds easy, well the RF connector is .080 in diameter and stands a whole .050 in height. The sub-straight that the barrel sits on is about .020 thick. I don
Electronics Forum | Tue Aug 16 12:24:56 EDT 2005 | patrickbruneel
Ok Josh if you insist, The directive is under ongoing review and deadlines are pushed further and further. Here's a link to a proposal of 18 new exemptions. http://www.dti.gov.uk/sustainability/weee/RoHS_Regs_Draft_Guidance_August_2005.pdf If you l
Electronics Forum | Thu Aug 25 13:06:45 EDT 2005 | carln
I evaluated a couple of the Vigon products by Zestron last year and I think the SC200 was one of them. They seemed to clean OK, and Zestron said they were biodegradable, but they conveniently failed to disclose that they contained VOCs. If you are
Electronics Forum | Wed Sep 21 16:25:43 EDT 2005 | GS
IPC-7525 tells you how to make stencil apertures for BGA IPC-7095 tells you how much should be the paste volume in order to get a reliable BGA solder joint. How are your PCB finisced? (HASL, ENIG, OSP, etc?) In case of not HASL, it could be necessa
