Electronics Forum | Thu Nov 30 21:45:44 EST 2000 | Dave F
It's unlikely that anyone other than the biggest of whooses would think of 0.031" a fine pitch. I prefer 0.025" on tape with solder plated copper leads make in a shape that bears-up well after being driven over by a Mack truck, yet is compliant enou
Electronics Forum | Thu Nov 30 21:23:44 EST 2000 | Dave F
Design more products and get wealthy. Don't waste your time and energy in areas that others are accomplished. A friend designs boards, sells $10M [what that is in euro, funny money, I don't know or care] of them a year, with a company of five [in
Electronics Forum | Wed Nov 29 20:32:08 EST 2000 | irwanm
I'm new in SMT and the company I'm working with has already purchased SMFL-3000 manual pick & place system with hot air and we don't have reflow oven. We are now starting design SMT board. My question is, how we reflow the solder? After all component
Electronics Forum | Thu Nov 30 23:31:49 EST 2000 | CAL
Dave F- FYI SMFL3000 is a manual placement/ reflow machine from Dima SMT (WWW.DIMASMT.com)origin, the Netherlands. In the USA Manncorp Reps Dima. I would reflow each IC component by itself and do an isolated mass reflow on the chips, then run to a s
Electronics Forum | Wed Nov 29 06:38:18 EST 2000 | Chris May
Dear People, Can anyone point me in the right direction. I am involved in manufacturing low volume (batches of 4-20) pcb's. I have been investigating Process Characterisation ref EIA/JEDEC PUBLICATION 132. For such a low volume scenario, has anyo
Electronics Forum | Mon Nov 27 16:31:07 EST 2000 | Chris Jackson
I am evaluating several pieces of Siemens equipment and would like to get some input from industry users. I am seeing that Siemens is able to meet cycle time estimates and thus throughput. I am concerned about the robustness?? Any input is welcome. T
Electronics Forum | Tue Nov 28 21:07:44 EST 2000 | Alvin K
Gold is porous and spots on gold plated PCBs is one of the drawbacks of using gold as a solderability protector. Base Nickel exposure seems to be the cause of this and is aggravated when the gold thickness is less than what it should be. I agree with
Electronics Forum | Fri Nov 24 01:12:28 EST 2000 | SARRY
Hello! All I am an almost smt biginner. I have a few questions My question is 1. what will be changed to use lead free solder paste in a smt production line? 2. what is the reflow profile for lead free solder paste? Don't just tell me to search th
Electronics Forum | Fri Nov 24 07:10:39 EST 2000 | Chris May
Sarry, Word on the street is that your profile will have to be hotter, maybe up to 20C hotter, I have trialled lead free. The sales guy said, "Right, lets reprofile your oven ! I said, "No, lets try it as it is.....! The results were fine, as the
Electronics Forum | Tue Nov 21 22:46:32 EST 2000 | Chryzs
Hi! Does anybody kow about a bga rework station that accurate and does the job (as possible) in one axis (no table moving after chip placing ... Something very accurate (I'm using a SRT Pinnacle 500 and it's not ok... NOT AT ALL) Thanks a lot! chry
