Electronics Forum: board (Page 964 of 1638)

Philips Topaz programming question

Electronics Forum | Mon Aug 20 17:02:41 EDT 2007 | vervin

Now you are talking. Stick feeders are too slow and paint to work with unless you are doing a bunch of low volume boards. Stick feeders belong in the front of the machine. It's easier for the operators to keep any eye on them. The rear of the machin

PWAs & PWB bake out requirements

Electronics Forum | Thu Aug 09 19:13:37 EDT 2007 | htran

DaveF, Our customer requirement is to comply with IPC-STD-001 but the J std doesn't specify the bake out temperature for populated boards and the moisture absortion rate. Right now we are baking the populated PWAs after aqueous wash at 80C at 18-48

SMT before through-hole

Electronics Forum | Tue Aug 14 15:08:32 EDT 2007 | gmoritz

pick/place head won't travel over the LED's, then you won't be able to proceed. I wasn't clear in describing my board layout; It is LEDs on one side and SMT components on the other side. I don't think we can get around the problem of stenciling

SMT before through-hole

Electronics Forum | Tue Aug 14 16:23:31 EDT 2007 | stepheniii

I've never seen them used or even heard of them being used like this but you might want to look at http://www.sipad.com/ You will still have to work out other issues like how to keep the SMT on while you wave the LEDs. Maybe you can get these board

automatic insertion of radial components 3.5mm

Electronics Forum | Mon Aug 20 10:03:48 EDT 2007 | slthomas

Wow. Never have, never would, but that doesn't mean it couldn't be done. Mostly it just seems impossible to design a carrier clip that could hold both well...more likely it would hold one well and the other poorly, or both poorly. Anyway, is there

Smema between GDM & PCT

Electronics Forum | Wed Aug 22 04:29:48 EDT 2007 | raf_jabil

Has anyone experienced intermittent communication issues with GSM/GDM and PCT conveyors? I have an intermittent issue where sometimes I would hit the ESTOP on the PCT conveyor(downstream) in order to get the board to eject out of the GSM/GDM. I have

PCB Cleaner

Electronics Forum | Wed Aug 22 11:22:42 EDT 2007 | 18424

Hi all, a while back someone was asking about a board wash and several people were looking for one. The Company I work for is getting rid of an AQ-400 wash, very very cheap. If anyone is interested please drop me a line. Brad_Court@Onsetcomp.com Loo

Solder mask color variation

Electronics Forum | Thu Aug 23 11:24:16 EDT 2007 | hussman

Welcome to Chine. Your best bet is to specify the type of mask you want and the type of finish you need. If not, they run what ever they have available. You may want to contact you board vendor and find out what they can offer. That's what we had

DI water testing?

Electronics Forum | Mon Aug 27 17:09:26 EDT 2007 | erokc

I have requested info on the disposable cartridge. I was told it was made for lab use and has an indicator to show depleated use. I will try to determine how the indicator works, ie. measures quality at the outlet (hopefully) or some other scheme?

Blowholes during wave soldering

Electronics Forum | Tue Aug 28 15:13:17 EDT 2007 | rgduval

Lead-free? White-tin finish? Even if it's not, it sounds like a moisture/contamination issue. If your boards must sit in stock between reflow/wave, consider giving them an alcohol bath to clean up any contamination, and a good baking to remove any


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