Electronics Forum: 2.. (Page 246 of 1152)

What is to much Void?

Electronics Forum | Mon Dec 13 14:41:41 EST 2004 | DasonC

Check IPC-7095, 7.4.1.6 For Class 2, 45% of the diameter adn 20.25% for the area.

Profile UP78 Alpha Metal ?

Electronics Forum | Wed Dec 15 08:44:50 EST 2004 | cardinal

Hi Patrick, For UP 78 the best profile is also the easiest. Straight ramp to 220-225 1-2 degrees C per second TAL 45-60 seconds drop it staight off The Tech bulletin says the exact same thing. Former Alpha Guy here

Source needed for Dehaart Parts... All numbers in forum are NG

Electronics Forum | Mon Dec 20 22:51:50 EST 2004 | mlogic

Craig, Thank you for the reply. I will call you tomorrow. I am probably less than 2 hours away. Kevin B

Pre-bake of Polyimide flex ? ?

Electronics Forum | Wed Dec 22 21:14:53 EST 2004 | davef

IPC-FA-251 recommends 121*C for 30-60 minutes for 1 and 2 flex layer circuits. A rigid flex can take easily an hour per layer depending on the construction.

cp4 motor

Electronics Forum | Mon Jan 10 03:12:27 EST 2005 | technitelec

are you looking for a used one or a new one, may i know what is the exact Fuji number is it fcp4-2 or fcp4-3 machine??? thank you serge

smt sizes

Electronics Forum | Fri Dec 31 03:04:24 EST 2004 | Colin G

0805 is 80 thou by 50 thou. As there are 40 thou per mm, this is therefore a device which is 2mm by 1.25mm, i.e., a 2125 Cheers, Colin...

Lead free questions

Electronics Forum | Tue Jan 04 13:21:56 EST 2005 | BK

1. Yes, you are probably doing it now on a daily basis. 2. No, not if you want to meet the requirments for lead free.

Stamping SMT assemblies

Electronics Forum | Wed Feb 02 14:55:34 EST 2005 | JB

We have used small hi temp labes, that are placed on our panels, boards before reflow. Each operator has a roll of labels with an assigned number. 4 operators, label 1, 2, 3 and 4. It worked well for us.

DIY UPS: Need some Help

Electronics Forum | Thu Jan 13 17:03:51 EST 2005 | davef

While you're waiting for others to reply, try: UPS discussion Forum http://www.tek-tips.com/threadminder.cfm?pid=525&page=2

SMT Members

Electronics Forum | Tue Jan 18 20:52:43 EST 2005 | fastek

Brad- Try doing a search of the archives. I'm sure you will pull up many discussions to help you out. The question you pose comes up every 2-3 months it seems....perhaps it's beaten to death. Rick


2.. searches for Companies, Equipment, Machines, Suppliers & Information

Software for SMT

World's Best Reflow Oven Customizable for Unique Applications
Electronics Equipment Consignment

High Resolution Fast Speed Industrial Cameras.
SMT feeders

High Throughput Reflow Oven
Circuit Board, PCB Assembly & electronics manufacturing service provider

Software programs for SMT placement and AOI Inspection machines from CAD or Gerber.