Electronics Forum | Sun Aug 14 22:58:17 EDT 2005 | crishan
Hi All, I would like help in establishing what is a feasible PPM reject rate from a typical SMD line. As a reference an SMD line consists of, solder paste printer, chip component placement, pick and place IC components and reflow. What is a bench
Electronics Forum | Mon Aug 15 06:17:47 EDT 2005 | md
All, I have a very annoying problem with the FIP3 machine. A while ago i had an issue with 2 sensors (only!) basically they were not sensong boards etc. when I checked the voltage I had 12 volts on the GB line which should have been 0v. This proble
Electronics Forum | Tue Aug 16 00:27:12 EDT 2005 | Peter
Hello, I have a question on white residues formation at wave soldering. We have recently run experiments to test the performance of various halide-free water soluble fluxes (ORH0 under JSTD-004). The flux was applied through a spray fluxer and all P
Electronics Forum | Wed Aug 17 15:30:56 EDT 2005 | DannyJ
Hi Jaya, Here's a definition, towards the bottom of the listing... http://en.wikipedia.org/wiki/Fiducial Mainly, a 'global' fiducial refers to the outside of the board, usually on the scrap rails. This allows the machine to locate two reference
Electronics Forum | Wed Aug 17 22:41:37 EDT 2005 | davef
Peter are you having fun with solder masks erwat? We saw this years ago with LPI solder masks. It shows occasionally with other masks. We agree with Russ. If nothing [eg, alcohol, flux thinner, acetonitrile, or water] dissolves the haze, then it
Electronics Forum | Wed Aug 17 21:58:35 EDT 2005 | plcc
Does anyone familiar with COB process? I hv a PCBA product with one of the photodiode (size 26mmx1mm) which needs to be bonded directly on the pcb using COB technology. The wires that need to be bonded are 2, goldwires for about 100microAmp current.
Electronics Forum | Thu Sep 01 01:36:23 EDT 2005 | adlsmt
The parts could still be the problem regardless if they came from different lots. If you look under a high mag microscope you should be able to see to some extent if once the lead is gone does it look like the lead plating is gone from the lead and i
Electronics Forum | Fri Aug 19 10:17:35 EDT 2005 | russ
Don, I have used both fixed and reciprocating head fluxers. In my experience I prefer the fixed head over the reciprocating. I actually found that the coverage was more uniform than a reciprocating. However, the fixed head on the Sono-Tek does req
Electronics Forum | Fri Aug 19 15:45:45 EDT 2005 | DannyJ
I usually like to have all the trays use pin 1 in a certain direction. In other words, as you are on the operating side of the machine, all the pin 1's should be on the lower left of the tray. With operators, the KISS principle seems to be necessar
Electronics Forum | Sat Aug 20 15:22:26 EDT 2005 | Jaya
Hi There, Good Day 2 Every1.:) I'm in mid of issue of SMT Components (Resistor & Capacitor) Turn Yellowish issue after reflow oven. Is there anyone have handle this issue previoslly and what is the reason behind the components behaviour in such. Can
