Electronics Forum | Mon Nov 21 10:51:12 EST 2011 | scottp
I've never seen a good article with a definitive explanation - just speculation that the increased wetting forces due to nitrogen result in increased tombstones. My own experience is that nitrogen is a very minor contributor to tombstones and can pr
Electronics Forum | Sat Jun 06 09:53:59 EDT 1998 | Earl Moon
GEOMETRIC DIMENSIONING AND TOLERANCING (GDT) Using and applying GDT to printed circuitry and assemblies is very much like applying it to any other design for manufacturing (DFM) or design for assembly (DFA) requirement using concurrent engineering (C
Electronics Forum | Mon Mar 06 17:17:13 EST 2000 | gary
I need a little help with RF and Rogers 4003 board material. My background was in digital and now I need to set up a new line to make small RF products (.5" x .5" or smaller). I want to find out about board platings, finishes/maskings and reasonable
Electronics Forum | Mon May 15 13:55:00 EDT 2000 | Aldo
We are in the process of researching manual or low cost automatic Tape and Reel equipment. I have heard about V-tek and Systemation. I would appreciate if someone can tell me any problems or virtues of theses two brands that have been experienced. Al
Electronics Forum | Fri Mar 24 15:20:27 EST 2000 | Chris McDonald
I have recently purchased a Tape and reel machine from V-Tech. We are using Presure Sensitive tape and we are not geting good results. Anything bigger that a SOIC14/16 gives us trouble. The cover tape will pull off on the feeder and we will lose part
Electronics Forum | Mon Mar 06 17:17:13 EST 2000 | gary
I need a little help with RF and Rogers 4003 board material. My background was in digital and now I need to set up a new line to make small RF products (.5" x .5" or smaller). I want to find out about board platings, finishes/maskings and reasonable
Electronics Forum | Sun Mar 06 17:39:15 EST 2005 | Darby
1st law of Surface Mount. You WILL run out of parts on the last board going through before a long weekend. 2nd law of Surface Mount. Touchies WILL touch. I'm with Russ and Rob. Touch up is EVIL and should only be tolerated in exceptional circumst
Electronics Forum | Thu May 26 00:42:19 EDT 2005 | nicholas2005
Ok, I just need someone to give me some feed back on a few questions I have. If anyone could help me that would be great. Example: take a Fuji CP-4 feeder for instance! If I machine my own, place my own parts on it, and place my own company name, and
Electronics Forum | Thu Jun 01 04:51:21 EDT 2006 | EC
Hi TS, Most of the machines will face this problem after been using few years.....I handling SMT equipments ( Fuji machine ) and process.....sorry if I have offened you...... Hi Jack, Firstly, you must able to tell which component having a high thr
Electronics Forum | Wed Aug 13 17:39:27 EDT 2008 | awegener
In light of this new information I've received from everybody's comments, I'd like to get more information about pick and place nozzles. How can I learn more? ... What do the nozzles look like? Are there different shapes? What kind might you r
