Electronics Forum | Thu Apr 26 08:27:30 EDT 2007 | ck_the_flip
If your product mix is similar in terms of thermal mass and componentry, find some standard setpoints (by doing a baseline profile) which will produce a thermal profile that's within the specs. of your solder paste and product. This approach usually
Electronics Forum | Tue May 08 09:50:19 EDT 2007 | patrickbruneel
Hi Loco, Good point!! The good old glass plate works just fine as long as the conveyor or carriers have L shaped fingers. A glass plate is usually about a � inch thick (a lot thicker than the actual board). With L shaped fingers the bottom of the gl
Electronics Forum | Thu May 24 08:55:25 EDT 2007 | ck_the_flip
Here's some quick things to look for: 1. Does your solder paste feel like concrete, does it roll-up into your squeegee blades, and stick to your stencil? If so, your problem is the solder paste. The mixture of powder and flux, or metal load is ou
Electronics Forum | Fri May 25 08:06:19 EDT 2007 | davef
Soldering PTFE boards * Exposure to the high temperatures needed for solder reflow poses no problem of loss of peel strength since the exposure times are relatively short. * There are many different types of PTFE based products that may perform diff
Electronics Forum | Wed May 30 19:08:58 EDT 2007 | darby
Mark, You should find that the blower motors and heaters will be replaced free of charge by Heller. I have four Heller ovens and have found that to be the case. I am the original purchaser however and it may be different if you have purchased the mac
Electronics Forum | Thu May 31 08:18:18 EDT 2007 | davef
The following make inspection stamps. They may be able to help: * VRS Marking; 567 Camino Mercado Ste. A, Arroyo Grande, CA 93420; 800-782-6790 805-481-9787 F800-743-3135 F805-474-1238 contactvrs@vrsmarking.com vrsmarking.com * Des Moines Rubber Sta
Electronics Forum | Fri Jun 08 07:52:13 EDT 2007 | zanolli
We are looking at a specialized method of direct soldering ceramic circuit modules (maybe 40mm square) to a mother board with solder joints on only 2 of the 4 sides. These modules would be oriented horizontally, or mezzanine like, to the mother board
Electronics Forum | Fri Jun 08 15:37:41 EDT 2007 | ck_the_flip
Jim: I have limited knowledge, but here's what I know: 1. Yes, it's a standard process. In today's SMTNet, it's rarely mentioned, and few people reply to postings. 2. Nope. It's a "specialty" piece of equipment for most CEM's. Depending on you
Electronics Forum | Fri Jun 08 19:03:09 EDT 2007 | flkpm
Hi all. First off thanks in advance for any help or suggestions you may give. What I need help with is making a 4x4 keypad overlay work again. I have the overlay and the PCB, all I need now is a device that connects to the PCB that senses the push of
Electronics Forum | Fri Jun 08 19:04:32 EDT 2007 | flkpm
Hi all. First off thanks in advance for any help or suggestions you may give. What I need help with is making a 4x4 keypad overlay work again. I have the overlay and the PCB, all I need now is a device that connects to the PCB that senses the push of
.gif)
