Electronics Forum: bga and pad (Page 62 of 159)

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Tue Jan 05 20:29:32 EST 1999 | Steve Gregory

| A question for you all! | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clean under 20

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Wed Jan 06 09:55:22 EST 1999 | Chrys

| | A question for you all! | | | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clea

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Tue Oct 12 17:24:27 EDT 1999 | Kevin Ham

| | A question for you all! | | | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clea

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Wed Jan 06 04:51:16 EST 1999 | Earl Moon

| | A question for you all! | | | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clea

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Tue Oct 12 17:40:01 EDT 1999 | Brian W.

| | | A question for you all! | | | | | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | | | | | My question concerns cleaning under, through, and around tight spaces. Way back when, we coul

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. |

How important NSMD pads are for the QFN and similar packages?

Electronics Forum | Wed Jul 30 00:47:10 EDT 2014 | matusov

Hello gurus, I am a hardware designer with a small company. We are about to send a new PCB for fabrication. This board uses dozens of tiny QFN, DFN, and similar packages. As a final check I have been going through the datasheets of all these parts t

How important NSMD pads are for the QFN and similar packages?

Electronics Forum | Wed Jul 30 23:40:45 EDT 2014 | matusov

Yes, but I have seen designs where the whole row > of leads has no mask(which is also a NSMD) Apparently I might have to do just that for some parts. We have a few parts with 0.2 mm pads at 0.35 mm pitch. Our PCB shop says that they need at least

BGA dropping off the board

Electronics Forum | Thu Feb 14 08:14:12 EST 2008 | davef

Questions are: * Do the BGA pads on the board take solder when you solder them by hand? * What is the temperature on the BGA pads during reflow? * What is the temperature on the other component pads during reflow?


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