Electronics Forum: .pad (Page 1 of 543)

Via in Pad

Electronics Forum | Fri Sep 13 06:18:55 EDT 2002 | yngwie

Here's a long survey....Pls help. 1) What is the general feel for via in pad for upcoming designs? - complete Via in pad - partial encroachment - via partially in pad 2) What are the manufacturing bare PCB's related concerns, issues and possible dr

Pad2Pad 1.3.0 available for download

Electronics Forum | Tue Jul 06 04:08:11 EDT 2004 | Pad2Pad.com

Hi All, A new version of Pad2Pad 1.3.0 is available for download. It contains multiple new price-time combinations. The list of parts and footprints is extended with DIP sockets, diodes, electrolytic SMT capacitors, popular transistors and ICs. Yo

ENIG-BLACK PAD!!!!

Electronics Forum | Tue Dec 05 07:00:05 EST 2006 | Jack

It is very common to relate ENIG pad surface finishing with BLACK PAD defect. However, is anyone know why BLACK PAD defect only happen on fine pitch pad areas suach as BGA, QFP? Why this defect did not or seldom happen on capacitor @ resistor pad??

RF board not soldered

Electronics Forum | Sun Oct 19 15:02:10 EDT 2008 | Jdt13

We are having some issues with a RF PCB aprox 1" x 1". The pads are in the bottom of the PCB and it goes on the Top side of the mother board the pads of the RF board are like a BGA (square pads)and we have troubles to make the proper welding in the

BGA PAD REDUCTION

Electronics Forum | Fri Jul 30 20:27:49 EDT 1999 | Dior

Has anyone done the research on BGA pad size? suppose I have a 0.030" diameter pad as recommended pad size from the spec, what will the minimum pad size allowed? We are laying out a high density board.

Re: BGA PAD REDUCTION

Electronics Forum | Sat Jul 31 13:27:42 EDT 1999 | Miguel Mariscal

Has anyone done the research on BGA pad size? suppose I have a 0.030" diameter pad as recommended pad size from the spec, what will the minimum pad size allowed? We are laying out a high density board.

Black pad on BGA after removal

Electronics Forum | Thu May 05 16:02:43 EDT 2005 | russ

I don't believe that you are seeing black pad. I think you are seeing an oxidized pad from your statement that these pads take solder. I would guess that these will be fine. But I would re-tin all pads prior to attaching the BGA to make sure.

Black pad on BGA after removal

Electronics Forum | Thu May 05 16:18:47 EDT 2005 | jimmiem

The black pads that we see are on the BGA component. We removed the component from its site and on 2-3 pads 100% of the ball stuck to the pad on the PCB and the corresponding BGA pad was black.

Collapsing of micro bga ball due to improper land pad design ?

Electronics Forum | Wed Aug 27 08:25:24 EDT 2008 | davef

We'd expect to see: * Solder starved connections at pads with large trace/pad areas. * Less reliable solder connections at pads that do not match the shape and size of the corresponding pads on the component.

square pads

Electronics Forum | Wed Mar 03 11:30:18 EST 1999 | dave reese

Are square pads more difficult to wavesolder than round pads? I am referring to a through hole board.

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