Electronics Forum | Tue Dec 02 08:40:27 EST 2003 | Daniel Werkhoven
Dear Tom, As manufacturer of solder chemicals for the electronic industry we know we can help you out with your problem. To go no clean you most only organise that the chemistry that stays behind on yr PCB will not cause any problem during the life o
Electronics Forum | Wed Dec 03 03:11:09 EST 2003 | ADAM
tHANKS FOR THE RESPONSE GUYS. I'll be checking out those websites during the day Cal. With regards to youR response Daniel. All our soldering materials are Alphametal products and are RMA based. As much as we would like to use ultrasonics on all our
Electronics Forum | Sat Feb 14 15:47:07 EST 2004 | Larry
Depends a lot on what you want to solve. Very low volume conformation of componpents down to legends, process control or inspection of assembly. Biggest problem is they are resource hogs. Most require constant attention. Any change in component sup
Electronics Forum | Thu Dec 18 21:36:03 EST 2003 | pdeuel
Blade angle, print speed, squeegee pressure, should be used in conjenction with one another. The more parellel the blade is to the stencel the more it will tend to float over the solder and the more paste is forced thru the appature. Contrary the gre
Electronics Forum | Tue Dec 16 15:43:50 EST 2003 | patrickbruneel
Kev, I looked up records of various hollis machines with 3 preheat zones. and with progressive preheat temp. of 300 400 and 500 with a speed of 3.5ft/min the topside board temp was 120C before entering the wave. the preheat elements were infrared. W
Electronics Forum | Wed Dec 17 08:49:04 EST 2003 | patrickbruneel
Kev, It looks like you have a preheating powerplant and you still only get the board up to 85 Deg. This indicates that the preheating is out of calibration or the range settings might be very wide (Fex the preheat elements shut down at 500 and go ba
Electronics Forum | Mon Dec 22 19:53:11 EST 2003 | Dean
Digital camera's are worth their weight in gold! Foremost it's a health and safety issue. That alone should compel the management team to get with the program. As an Engineer I have to know how to operate, program, maintain, troubleshoot and CLEAN
Electronics Forum | Thu Jan 22 15:37:04 EST 2004 | solderboffin
Hi Vijay The short answer is, there isnt one! Sorry to be vaugue but its pretty much up to you and the quality systems you are working to. The generally accepted interval is every month, but there are not rules. The other issue to face is the defini
Electronics Forum | Thu Jan 08 14:33:50 EST 2004 | dwzeek
Toe fillets are not required per IPC. Toe fillets could be used as a process indicator, if you desire; I would not. Gull wing leads are typically cut off on the ends when manufactured; this exposes the non-plated material in the lead, typically coppe
Electronics Forum | Tue Jan 13 01:20:31 EST 2004 | mantis
Hi All, I have seen this issue on a QFP160.Firts of all as previously suggested if the board is wave solderded make sure that you are not seeing topside reflow as the board goes over the wave.Secondly you should verify your reflow profile.I seen this
