Electronics Forum | Fri Feb 11 11:56:02 EST 2005 | Brian W.
Don't forget the possibility of causing component damage in addition to board damage. Reworking a ceramic capacitor with a hot iron can cause microcracks in teh capacitor. You probably won't find those until much later in the process, maybe even in
Electronics Forum | Wed Aug 30 09:56:37 EDT 2000 | NLykus
Hi Ramon, We have had this problem before on our Seho Wave Solder Machine. We are currently using a spray fluxer as well. By imersing the PCB into the flux you stated you are getting good results. What you need to do is check your spray patter
Electronics Forum | Tue Jun 10 18:54:12 EDT 2003 | fastek
Sorry guys. I'm not in agreement with your nightmarish vision of a Matrix based future. As a guy who has worked in the trenches since the 70's myself....I would say that anything that replaces humans in this business is a good thing. I've seen the ev
Electronics Forum | Sat May 18 15:19:55 EDT 2013 | isd_jwendell
OK, I've now read all of the documents you referenced. The problem still remains regarding the thermal vias and how to minimize scavenging. All the docs acknowledge top and bottom tenting, and it's problems. TI says don't do it. Plugging is usually n
Electronics Forum | Wed Feb 26 23:59:48 EST 2003 | Mike Konrad
Grant, No-Clean paste + IPA = White Residue! #1: Stop using IPA #2: Switch to either a solvent-based de-fluxing chemical or an aqueous-based de-fluxing chemical. If you are using an ultrasonic cleaner for your boards as stated, do not use sapon
Electronics Forum | Wed Jun 16 08:56:34 EDT 1999 | Vic Lau
Do anyone have any experience on assembling high frequency product, 1.8GHz or 2.4GHz. In our production line, we manufacture 1.8GHz product with using no clean paste (RMA type) for reflow and no clean wire for rework. In our functinal test,either a
Electronics Forum | Thu Sep 26 14:43:43 EDT 2002 | Jim M.
unsure of what solder spec. your working to?.IPC/EIA J-STD-001C, Section 9.2.4 clearly states dull, matte, gray or grainy appearing solders are accpetable depending on your process and if the acceptability of the neaxt paragraph is met.IPC 610 and J-
Electronics Forum | Tue Jan 30 18:25:25 EST 2018 | aqueous
This is one of the most common questions I get asked. Why clean no-clean flux. It was stated earlier that no-clean residues are benign. This may or may not be accurate. It depends on several factors including the reflow process. In a perfect world, t