Electronics Forum | Sun Jan 24 06:44:31 EST 1999 | Kallol Chakraborty
| | Could anyone send me equations to calculate controlled impedance of traces on circuit boards. I am most interested in the buried traces in multi layer boards. | | | | Thanks, | | David - piengr@verinet.com | | | As one of the first MLB impedan
Electronics Forum | Fri Jan 15 13:35:03 EST 1999 | Terry Burnette
| I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? | | Thank you, | Wirat
Electronics Forum | Wed Feb 03 14:20:34 EST 1999 | johnp
| What's going on with Nepcon next year??? | I have heard rumors allot of the big guys are moving to IPC/SMEMA show on a long beach somewhere in Calif.. | | Any info on who is planning to attend Nepcon 2k would be nice | Fuji?? | Universal??? |
Electronics Forum | Tue Jan 12 14:59:14 EST 1999 | Earl Moon
| What would be a good metric for process control of a stencil printer? (fully automatic, vision equipped, stendil printer). | I'm doing some more DEK 265 GSX's with everything imaginable hung on them. Have done Lt's and the MPM2000. This makes mach
Electronics Forum | Mon Jan 11 12:15:36 EST 1999 | Cunli Jia @ SMTnet
To All, SMTnet has many new services and content planned for 1999. We welcome any input that you may have for ideas that would make your SMTnet experience better. One project in the works is to greatly expand our coverage of Trade Shows and Confere
Electronics Forum | Mon Jan 11 12:13:39 EST 1999 | Cunli Jia @ SMTnet
To All, SMTnet has many new services and content planned for 1999. We welcome any input that you may have for ideas that would make your SMTnet experience better. One project in the works is to greatly expand our coverage of Trade Shows and Confere
Electronics Forum | Fri Jan 08 10:00:26 EST 1999 | Chrys
| Has anyone done head-to-head comparison between these two? If so, what were pro's and cons of each? Which choice, if any, was made? | | We here are looking into implementing an SPC program for Wave Solder. The tool would be used once or twice,
Electronics Forum | Tue Jan 05 18:07:53 EST 1999 | Dave F
| I am looking for information regarding post wave soldering of stranded wires into a circuit board using OA core wire solder. We do a final pass thru the cleaner after the hand soldering but I'm concerned about any OA flux residue that may have wic
Electronics Forum | Tue Dec 29 23:37:09 EST 1998 | Mike Konrad
James, Most rental DI systems are as follows: Option #1: 2 mixed bed resin tanks: In this case, a 1 M-Ohm light should be installed on the output of tank #1, before tank #2. When the 1 M-Ohm light indicates that the output of the #1 tank is below
Electronics Forum | Mon Jan 04 23:15:35 EST 1999 | Kris Ewen
Where I worked, we used 0.014" square aperatures (several mfgs. have proven the benefits of square & I've seen a better transfer efficiency myself). Some mfgs use smaller edge lengths & have had success. 0.005" thick stencils give better transfer e
