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Monitoring Cleanliness of No-clean Assembly

Electronics Forum | Fri Jun 27 08:39:35 EDT 2003 | davef

It's a excellent idea to monitor the cleanliness of your components and soldering process. Consider running a spare board.

Monitoring Cleanliness of No-clean Assembly

Electronics Forum | Fri Jun 27 10:48:18 EDT 2003 | Steve

We have considered running a spare board with each job as a possible solution, however due to the cost of the assembly, this would not be preferred.

Reflow Oven Recipes

Electronics Forum | Fri Jun 27 08:35:54 EDT 2003 | davef

We run a few standard recipes, because we don't like waiting for and determining if our oven has stabalized after dialing-in a new recipe.

Stencil Aperture Reduction - Need Feedback

Electronics Forum | Fri Jun 27 08:32:08 EDT 2003 | davef

You should be fine. A fifteen percent reduction of these pads will probably improve reliability, depending on spacing of course.

Package Dimensions

Electronics Forum | Fri Jun 27 10:04:55 EDT 2003 | Charlie Finke

Does anyone know of a good web site that lists general package dimensions for various SMT device sizes, like 1206, etc.?

Package Dimensions

Electronics Forum | Tue Jul 01 07:12:12 EDT 2003 | iman

actually, component sellers will have their own respective catalogue with all the available sizes used in their industrial business. Try your local "Rohm/Murata" sales-rep. for starters in the realm of chip components.

Silica gel in final packing

Electronics Forum | Wed Jul 02 06:56:34 EDT 2003 | davef

There's nothing wrong doing about adding a dessicant. You'll need to: * Seal the bag. [you may end-up needing a moisture barrier bag] * Select a dessicant packaging that is ESD dissipative.

Double-sided reflow with a Altera 240-pin RQFP

Electronics Forum | Mon Jun 30 08:55:45 EDT 2003 | Steve Gregory

Has anybody ever done a double-sided reflow with a Altera 240-pin RQFP on the bottom? The part has a heatsink in the top and weighs just over a half-ounce... Thanks in advance! -Steve Gregory-

Packaging for WIP PCB

Electronics Forum | Tue Jul 01 01:37:00 EDT 2003 | bkyip

Can anyone advise whether it is fine to use "stretch film" to shrink wrap ESD-safe box that contains work-in-progress PCB? If no, what is the consequences? Please advise.

Packaging for WIP PCB

Electronics Forum | Wed Jul 02 06:52:40 EDT 2003 | davef

Why not record your field meter reading from inside the box, while you're flex wrapping the box?


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