Electronics Forum: mani (Page 388 of 496)

Re: Help with new placement equipment

Electronics Forum | Fri Sep 10 12:06:45 EDT 1999 | The Guc

| | | | I need to install some new lines for high mix low volume products in an already cramp building. Could someone share any info about the machines which give you the best bang for floor space. I need a 2 machine system for placing 0402 to fine

Re: Who Are The X-Men?

Electronics Forum | Wed Oct 14 16:58:30 EDT 1998 | Earl Moon

| It seems like most people want to X-Ray their BGAs. We're going to start doing a lot more of them and need to consider X-ray, too. | Q: Do most people/companies X-ray everyBGA or do they just do SPC? | Q: Can you get away with spending 25K? 30K? H

Re: Double-sided reflow process.

Electronics Forum | Sat Oct 10 04:58:18 EDT 1998 | Tony B

| *Reply to: ericr@nj.tanon.com | | Without going into a lengthy explaination {at this time}, has anyone experimented, tested, evaluate, and/or 'perfected' an SMT double-side reflow process. Presently I'm using a Kester R593 OA (water soluble) Sn63/

Re: Solder paste print with two thicknesses

Electronics Forum | Thu Oct 08 03:33:50 EDT 1998 | Thomas Blesinger

| | I am trying to find out, what possibilities I have, to print solder paste on a board, when the task is to have 120 Microns thickness for the biggest part of the board (85% of the real estate), and then have 250 Microns of thickness on the remain

Re: AOI for Chip-waved discretes - users only

Electronics Forum | Thu Oct 08 12:11:34 EDT 1998 | Rick Wyman

| Does anyone know of an AOI system that can look at the solder joints of SMT chip devices (1206,0805 & 0603) and make a reliable presence/abscence call of the joint on a HASL PCB. A low false call rate (much less than 1%)is required. Any info. fro

Re: SOLDER BALL UNDER THE PCB AFTER REFLOW SOLDERING

Electronics Forum | Thu Oct 01 19:07:48 EDT 1998 | Paul R. Smith

Kyung Sam, Justin is correct, there is definately either a board design problem or the PCB maker issue. Obviously there are many mixed technology boards built in the world so I would lean towards a design issue as the root cause. Should you or you

Re: Cosmetics For PCBs

Electronics Forum | Wed Sep 30 13:54:00 EDT 1998 | Chrys

All y'all | | BACKGROUND. How many times do you see folks come to work all painted-up and then by the time first break comes, the lipstick, eye liner, and who knows what else are gone and they�re heading for the facilities to "freshen-up." I w

Re: Cosmetics For PCBs

Electronics Forum | Fri Oct 02 16:52:38 EDT 1998 | Dave F

All y'all | | | | | BACKGROUND. How many times do you see folks come to work all painted-up and then by the time first break comes, the lipstick, eye liner, and who knows what else are gone and they�re heading for the facilities to "freshen-up."

Re: unsoldered joints

Electronics Forum | Tue Sep 22 09:59:15 EDT 1998 | Mike C

| Hi Jacqueline! | Do these joints that you're having problems with happen to be on fine pitch solder joints? Are the fillets staying attached to the foot and separating from the pads cleanly? | If that is true, are there many vias concentrated

Re: Lost On An Island

Electronics Forum | Mon Sep 21 12:04:39 EDT 1998 | Chrys

| Say, you company wants you to set-up a new assembly line. You get: | 1 $2 million for any equipment that you want to purchase and no idiot bosses second guessing your choices | 2 New building with good parking and enviromental and ESD controls | 3


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