On Sun, 21 Oct 2007 07:15:54 -0500, Spehro Pefhany
wrote:

On Sat, 20 Oct 2007 20:36:10 -0700, the renowned John Larkin
wrote:

On Sat, 20 Oct 2007 18:36:04 -0700, ChairmanOfTheBored
wrote:

On Sat, 20 Oct 2007 14:04:48 -0700, John Larkin
wrote:


I noticed a few process indicators to mention to your PCB maker's QA
folks. Not the contract makers the assembled the unit (or you guys if it
was your folks), the PCB itself.

The stains under the dip package location are indicative of mask
delamination or poor adhesion of it. A condition known as "haloing".

I think that's just the lighting. The board looks OK to me.



Change the resistor packs to the next form factor size up perhaps.

Yeah, we should stop using these things.

There are two edge forms, one is a bit more expensive and solders a
bit better IME. My most recent tiny board (1.75 x 2.9") has 10 of them
(0603x4) which is a lot nicer than 38 discrete 0603 or 0402 resistors.


Got any part numbers or links? It would be worth switching.

And the US8's seem to be getting worse. ROHS plating maybe?

John