Electronics Forum | Thu Jan 26 09:01:32 EST 2006 | Chunks
Mercury vapors are pretty good. Also, if you can build n some day light diffusers for natural sun light to come in. It works pretty well. Use a diffuser as clear glass may cuase vision problem with equipment if under direct sun light. Been there.
Electronics Forum | Fri Aug 07 08:18:24 EDT 2020 | astra
Zones inside diffusers rusted , I am planning to do coating please suggest which type of coating & material I can select?
Electronics Forum | Thu May 07 19:29:40 EDT 2009 | kareal
Hi Davef, Do you means it is natural for tin diffusion to copper trace during SMT process? but I could not detect tin in UHAST T=0 unit, and the tin diffusion was found only in copper trace of C4 cage. Two question: 1) Could you tell me which pr
Electronics Forum | Tue Nov 09 23:52:31 EST 1999 | chartrain
Could very well be your nitrogen diffusers are blocked. These have to be cleaned on a regular basis as well.Cleaning frequency for the diffusers is flux dependent as well as other factors but could be as little as one month of operation. Once the dif
Electronics Forum | Mon Sep 20 16:15:11 EDT 2004 | davef
The activation energy for diffusion for molded with novolac, biphenyl or multifunctional epoxy mold compounds and air are not equal.
Electronics Forum | Mon Feb 27 09:09:36 EST 2006 | davef
Silver on your copper or brass part is a solderability protection. The silver diffuses into the solder and you solder to the base metal, either the copper or brass in your case. Soldering to copper is well known. The issues are soldering to brass
Electronics Forum | Fri Sep 08 08:33:17 EDT 2006 | davef
Raybans or diffusers on lights, yer choice.
Electronics Forum | Tue Feb 26 05:10:17 EST 2008 | adetuc
Thanks for the reply Hege, I calibrate the machines every 3 months and have checked that the board carrier to nozzle parralelism is ok. Have tried many different profile settings using a MOLE for readings but still collapsing on one corner. I did
Electronics Forum | Fri Aug 07 10:53:10 EDT 2020 | bukas
brake paint?
Electronics Forum | Thu Nov 10 20:39:44 EST 2022 | SMTA-64386598
The solderability shelf life of ENIG is related almost entirely to diffusion of O2 through the gold plating. When O2 diffuses through the gold, the underlying nickel is oxidized rendering it unsolderable (with ENIG - you solder to Ni, the gold dissol