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
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
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
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
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
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
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
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
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
Electronics Forum | Mon Feb 12 11:12:16 EST 2007 | davef
Q1. After reflow some boards start producing bumps/bubbles which damage the internal layers causeing PCBs failed in Electrical-testing. How can I eradicate this problem from my assembling process? A1. Find a proper board supplier. Q2. If SMT compon
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