Electronics Forum | Thu Aug 23 15:45:48 EDT 2001 | slthomas
So, we've already addressed the tombstoning on these guys by adopting the mfr's (Pana.) recommendations for pad size and spacing. Problem is, we have pretty bad wetting of some of these parts. The rest of the board we use them on looks great, nice
Electronics Forum | Mon Aug 27 16:13:35 EDT 2001 | seand
Hello Everyone, For QC purposes, there are a couple of methods to both qaulitatively and quantitatively inspect your manufacturing process. For Paste inspcetion, an inline machine like the SE300 by CyberOptics may be appropriate. You may also inco
Electronics Forum | Wed Aug 29 20:20:19 EDT 2001 | Rob Fischer
What a great question! I know of just a couple: http://www.scancad.com http://www.lpkfusa.com/products/product/smtstencil/index.htm They've been around for awhile and must have a proven track record. I don't know if there is any governmental agency
Electronics Forum | Fri Sep 07 15:17:01 EDT 2001 | seand
Hello Everyone, Speedline Technologies' Electrovert Division does offer a number of batch and in-line systems for your cleaning application. A good contact for you to reach to discuss the details of your application would be Bill Boyde at the facto
Electronics Forum | Fri Sep 28 09:30:07 EDT 2001 | kmorris
Just had a similar phenomenon 2 days ago. May relate to your issue --- or not. Like you, I did a once over looking for mechanical obstruction & couldn't find any. Ran a thermal profile on the offending PCB & all checked out. Looked in end of oven
Electronics Forum | Tue Sep 18 15:28:56 EDT 2001 | jschake
This is an interesting dilemma you have been faced with. If both machines are outfitted similarly and running under identical process settings then they should produce nearly the same results, in theory. I do not dispute the observations you are re
Electronics Forum | Thu Sep 27 11:59:14 EDT 2001 | vance
Programming time is going to be your biggest concern with a high mix environment. This includes maintaining programs. Any time a part's appearance changes (color, location of marking, wording, etc) templates need to be modified in some way to produ
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 | 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
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