Electronics Forum | Tue May 30 20:48:58 EDT 2000 | Dave F
John: I�ve got questions for you � � Given that the spending pattern are significantly different for design and manufacture and these are unrelated departments in most companies, what�s the point? � What would be the purpose of such a "a sensitivity
Electronics Forum | Thu Apr 20 05:35:25 EDT 2000 | Keith Stone
Hi Pete We have a Black and Decker Power File and have mounted it on a bench in an enclosure to capture the hazardous dust. We used a hopper (usually used for guttering!) with a wire mesh over the top (static reasons) mounted in the bench top inside
Electronics Forum | Wed Mar 29 22:30:13 EST 2000 | cklau
Hi guys; There are a few points that should be taken in to considerations regarding IPC-SM-782 land pattern and design rules. As a general rule all SMT reflow pattern should be in comply with SM-782 but however for special cases like : * PLCC land
Electronics Forum | Thu Mar 16 10:41:34 EST 2000 | Russ
Are we talking midship SMT or wave soldering? SMT - I have found the best method is not having them (WOW) this can be accomplished through pad design, aperture design, placement accuracy, and profiling, It is my understanding however, that these
Electronics Forum | Thu Mar 22 16:35:06 EST 2001 | Steve
Deja vu! When I read your response I turned around to see if you standing behind me listening to our problem. We currently make about 50 different boards all using no-clean that have no problems, yet this newest boards has a couple of issues that eng
Electronics Forum | Thu Mar 22 16:52:10 EST 2001 | kaopsahl
Yes, there are adhesives designed just for stencil application. Usually plastic squeegee blades are recommended for best printing results. Plastic stencils are also available for this application. Both Alpha Metals and Loctite have articles on this s
Electronics Forum | Mon Apr 16 10:16:01 EDT 2001 | pteerink
Been there, done that, don't wanna do it again..... Was lucky enuf one time to recieve a customer PCB ( we were a contract house, nuff said...) where the PCB designer had decided to put vias in the pads of a QFP80. Probably don't hafta tell you that
Electronics Forum | Fri May 25 18:17:56 EDT 2001 | davef
No chart for you, but I will comment that a prudent product manager would require a substantial reason to accept the risk of product failure and loss of profit to redesign his / her product. We merrily assemble many boards each month that were desig
Electronics Forum | Thu Jun 28 22:42:13 EDT 2001 | davef
I�m with Stefan � no booze, drugs, or chewing tobacco in the shop!!! [I�d like to ban facial make-up, but am still limping from the last time I tried.] Stefan, how are you going to get the P&P manufacturers to agree on a common nozzle design, when
Electronics Forum | Fri Jul 13 19:08:55 EDT 2001 | mparker
Home plate apertures are designed to reduce or eliminate solder balls that occur when placing a chip and reflow of the solder. This aperture type is usually desired when processing with a "no-clean" solder paste. The design of the aperture is usually
