Electronics Forum | Sun Dec 17 14:49:57 EST 2006 | kvanzill
Well, We have several lines some products run Kester 256 and others run the Timura. I have changed the product to print on another printer and it follows. We have several products that use the same paste and similiar board design that has a problem
Electronics Forum | Fri Dec 15 18:36:46 EST 2006 | Grant
Hi, I have noticed we are getting residue on our wave pcb's and it's worse with lead free, since we changed to the flux we are using. We are currently using Avantec VOC Free flux model Ecofree 303. It looks like it's made in Malaysia. Does anyone h
Electronics Forum | Wed Dec 20 04:08:09 EST 2006 | ungun
Sorry for the late reply. I use glue dispenser machine juki kd-775. It have dispensing diameter confirmation unit, but dispensing test tape can be hold for 2 to 3 days a roll if the output 300 pcs pcb with average glue point 100 per peace. Beside, i
Electronics Forum | Thu Dec 21 21:37:19 EST 2006 | Jack
Hi Pavel, Real Chunks, Thanks for your valuable inputs..Selecting the correct location for board profiling is critical in determining the solder joint quality. Am I right to say TC wire attachment locations priority should be as below: (1) Thermal
Electronics Forum | Tue Jan 09 12:51:14 EST 2007 | aj
All, We have ran a few revisions of a New Product which is a tracking device using satellite navigation. The protos went well but now they have added a shielding can. We place 2 of these to cover the Frontend of the PCB. The test guys are having d
Electronics Forum | Wed Jan 24 10:08:36 EST 2007 | electronhose
Immersion Silver, ImAg, is becoming the finish of preference. This is due to it having similar process limits vs. SnPb HASL. There were some early concerns about shelf life, but new chemistries have extended finish shelf life to 12 months+. Many boar
Electronics Forum | Mon Feb 05 07:02:11 EST 2007 | CL
ASIR, Findings for us so far: OSP- has worked well for us for single sided boards only. We have seen problems with using it on double sided reflow applications. Also, some customers have specified OSP, but are intolerant of exposed copper. Limited
Electronics Forum | Mon Jan 29 10:52:57 EST 2007 | jaimebc
You are probably using a GSM since you mentioned "enhanced board setup". 1.- Your CAD data. It works better when all your data uses bottom left of the PCB as a board origin ( BO ). If my CAD does not use bottom left as a BO, then I edit the data in
Electronics Forum | Fri Feb 09 13:05:14 EST 2007 | realchunks
Lawyer questions in the fact that they are silly or seem so vague? "1. Can X-Ray Inspection System damage the EPROM OR OTP during inspection after Reflow?" No, not by typical X-ray equipment designed for PCB manufacturing. "2. At 300 degree Ce
Electronics Forum | Mon Feb 12 11:12:16 EST 2007 | davef
Q1. After reflow some boards start producing bumps/bubbles which damage the internal layers causeing PCBs failed in Electrical-testing. How can I eradicate this problem from my assembling process? A1. Find a proper board supplier. Q2. If SMT compon
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