Electronics Forum: aperature design (Page 6 of 6)

QFP soldering issue

Electronics Forum | Thu Jan 08 16:16:09 EST 2004 | Dean

My first concern would be the choice of solder paste you have. There are better chemistries out there that far exceed the capabilities of the 609 2. Yes, the part will partially float on the solder (assuming plastic qfp). Cross sectioning would sho

Re: Aperature opening for epoxy printing

Electronics Forum | Sat Aug 07 11:10:03 EDT 1999 | JohnW

| Could someone give recommendation on the stencil opening for printing epoxy on HAL FR4 PCB for 0805 and 0603 size chips capacitors and resisitors. | My regular stencil manufacturer recommend the following: | Thickness: 8 mils | 0805 opening: Oblong

Re: Successful Transfers to Contract Manufacturers

Electronics Forum | Wed Apr 28 07:35:54 EDT 1999 | Corey Peterson

| | | As I transfer prototypes/pilots out of my shop (because the designs are mature or Engineering confidence is high). How do I minimize my risk and ensure success for both the CEM and my boards. | | | | | | Best Regardsgroup. This would include

Re: Successful Transfers to Contract Manufacturers

Electronics Forum | Wed Apr 28 17:27:31 EDT 1999 | Steve Gregory

Thank for the input. But I guess I was looking for more. We have been transferring boards for some time and a have good working relationship with our primary CEM and have worked out many bugs. I was thinking more on the order and don't shoot me bu

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