Electronics Forum: 2007 (Page 451 of 527)

Soldering to Platinum/Silver terminations.

Electronics Forum | Tue Jan 30 12:58:49 EST 2007 | barryg

We are seeing problems with platinum over silver plated part also. Our main problem is solder splatter under these devices, and voiding at the terminations on parts off the reels.I am curious if you have removed any of these parts and noticed any spl

Solder Paste Inspection

Electronics Forum | Mon Feb 12 12:33:24 EST 2007 | SJ

There are several ways to inspect solder paste after deposition. Defects will range - too much paste, not enough, misaligned, bridged, smeared, etc. Some sceen printers have 2D inspection imbedded, otherwise a standalone system for paste inspection

Solder Paste Inspection

Electronics Forum | Fri Mar 02 10:06:28 EST 2007 | oldsmtdude

Agilent SP50 rocks for continuous improvement and pass-fail efforts. You'll see variation you never imagined you had prior. But be aware you absolutely have to monitor data and tweak your processes to improve results. Do not jump in and try and use

Fuji IP-1 cycle alarm Z axis

Electronics Forum | Wed Jan 31 13:00:43 EST 2007 | bvdb

The continuing saga - we got the IP-1 communicating with the MCS16 again by replacing a couple of chips on the VME1152 CPU board and now it's working again but have a new problem. The machine stops about every other time when changing nozzles with a

internal tray feeder

Electronics Forum | Tue Feb 06 18:46:13 EST 2007 | darby

Imagine you put two 8mm feeders on the rear feeder plate, they are about the same distance apart as the length of your tray. On top of these feeders are two slotted arms that allow you to move the arms towards the moveable rail. You place your tray o

RoHS BGA stencil question

Electronics Forum | Thu Feb 08 08:28:11 EST 2007 | mzaboogie

Good Morning Everyone, We have an application coming up with several BGA's on a RoHS assembly. One is a 25 mil ball on a 40 mil pitch, another is a 15 mil ball on a 40 mil pitch. In the past for leaded assemblies, we have used square apertures for 1

Forum Spam

Electronics Forum | Thu Feb 08 16:50:38 EST 2007 | mika

Why not? Sounds like a good idea. Almost all other forums that I visit req. registration before posting. Another benefit is that it is possible to ban a member if acting improper on the forum. It should also be possible to report a posting to the sta

Forum Spam

Electronics Forum | Thu Feb 08 23:32:15 EST 2007 | smtstaff

>How will the registrations that you propose be different than the registrations that SMTnet currectly uses? A. The current registration process will remain for the time being (we are currently upgrading servers which will be followed by a complete

EPROM OR OTP ICs issues

Electronics Forum | Fri Feb 09 13:05:14 EST 2007 | realchunks

Lawyer questions in the fact that they are silly or seem so vague? "1. Can X-Ray Inspection System damage the EPROM OR OTP during inspection after Reflow?" No, not by typical X-ray equipment designed for PCB manufacturing. "2. At 300 degree Ce

EPROM OR OTP ICs issues

Electronics Forum | Fri Feb 09 15:39:13 EST 2007 | Fat Angry Engineer

That's my exact suspiscion too. This guy is trying to find some type of "scapegoat" for some unknown defect that nobody can figure out. First, he'll try blaming the solder paste, thinking that the CM is too dumb to choose the correct soldering mate


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