Electronics Forum | Thu Sep 27 10:28:29 EDT 2001 | John S
It seems to depend on your situation. We're an OEM manufacturer and run the same products for extended periods of time. We monitor process indicators such as Dave listed, but we also monitor process defect trends. This is product specific of cours
Electronics Forum | Wed Sep 26 16:33:45 EDT 2001 | davef
Your first inclination is correct. You should start by asking your friends and colleagues on SMTnet: * What is that SMT or MEMS or COB etc.? * What are the considerations when processing a SMT or MEMS or COB etc.? We�re one smart crew that won�t st
Electronics Forum | Tue Oct 02 22:13:56 EDT 2001 | davef
IPC-D-356 is a data transfer language developed by the IPC to replace Gerber. It is a far more intelligent form of physical definition for PCB/PWB. The only segment of the language that seems to have developed any market support is the physical netl
Electronics Forum | Fri Oct 05 08:35:52 EDT 2001 | Hussman
Hey Steven, Achieving the proper profile like you described does require you to engineer proper conveyor speeds and zone temps. Most conveyorized ovens have the inside of the ovens divided into zones. Each zone has a top and bottom heater that can
Electronics Forum | Fri Oct 05 11:59:54 EDT 2001 | mparker
I am looking to learn of possible causes and solutions for the following problem. A potential customer is demanding that I use a saponifier in the aqueous wash, he has lab test results of former CM's products that leads him to believe it is necessar
Electronics Forum | Tue Oct 09 12:30:26 EDT 2001 | mparker
Cal - even trolls were smart enough to outwit most back in the day. I appreciate your input as well as Dave's. I agree about doing the retest. I just didn't have the right info, just some gut feel that made me question the purported lab results. I h
Electronics Forum | Mon Oct 08 03:42:31 EDT 2001 | Darby
Can't get on to the Heller email or website and I require an urgent answer. Has any one had any experience in reversing the conveyor direction and thus all the zone set ups etc in a Heller 1500w or similar. What did it cost and were you happy with th
Electronics Forum | Tue Oct 09 11:50:44 EDT 2001 | Marc Peo
Hello Darby! Mike is correct in saying that reversing the conveyor can be done but the position of the cooling zone would be troublesome. I am guessing that you are looking at a left to right machine that you would like to run right to left or vice
Electronics Forum | Tue Oct 09 20:30:25 EDT 2001 | djarvis
Thank you all for your input. We didn't get the oven and if we did I decided in the short term to just turn it around and run it as a belt mesh oven - the next line we buy runs it's conveyor to suit the oven. Hi to you Marc, it's been a few years. Yo
Electronics Forum | Mon Oct 08 23:17:48 EDT 2001 | Brad Arnold
We are trying to produce a PC Card bus assembly with a 672 pin BGA on one side. These pcb's are .015 thick. I believe the ball pitch is .5mm. The pcb's are plated with white tin. The pcb's are in a 1 X 3 array. We had 2 plates with appropriate cutout
