135 ipc gold plating spec results

Electronics Forum: ipc gold plating spec (Page 1 of 14)

Poor reflow over gold plating

Electronics Forum | Tue Jun 28 10:51:32 EDT 2005 | mattkehoe

Thanks for the replies, - solder paste used ? NC ? other ? Water soluble 63/37 paste - reflow in Air or N2 ? Infrared - temp ramp up before soack (�C/second) ? Will have to check. This profile has been used on numerous gold plated boards in our

Re: Gold plating thickness on gold finger

Electronics Forum | Fri Oct 08 17:12:31 EDT 1999 | Dave F

| Hi, | | Does anybody know what is the minimum gold plating thickness on the PCB goldfinger required by the industrial specifications - IPC, Bellcore, etc. Where can I find the information? Appreciate for the help! | | Thanks, | Tony | Hi Tony:

soft gold vs immersion gold

Electronics Forum | Wed Aug 11 18:36:03 EDT 2004 | davef

90 Knoop. Q2: Thickness is 4 to 10 u" for Au and 300 to 400 u" for nickel A2: This looks like a ENIG spec. Although, the Ni is quite heavy, 150 uin is sufficient for most applications. [IPC-4552 ENIG specification: * Gold thickness of 0.075 - 0.125

Gold plating thickness on gold finger

Electronics Forum | Thu Oct 07 20:34:48 EDT 1999 | Tony Huang

Hi, Does anybody know what is the minimum gold plating thickness on the PCB goldfinger required by the industrial specifications - IPC, Bellcore, etc. Where can I find the information? Appreciate for the help! Thanks, Tony

Gold plating specification

Electronics Forum | Sat Nov 23 06:28:23 EST 2002 | Alistair Johnston

I work for A PCB manufacturer and have a request to plate a board with Gold to BS4292. We dont hold this spec and wonder if anyone can explain what is entailed in this spec.

PCB with ENIG plating shelf life?

Electronics Forum | Fri Jan 06 00:03:10 EST 2023 | SMTA-64419298

Hello Evtimov, sorry...just saw post as I was looking through list...a bit late. I don't know if you ever got your answer. IPC-4552A covers EniG finishes and suggested shelf life. I've referred to these doc's quite a bit. Good spec's ! Yes, I beli

soft gold vs immersion gold

Electronics Forum | Mon Aug 16 13:18:46 EDT 2004 | davef

You bet our reponse changes. Q2R: Hard gold thickness is 4 to 10 u" for Au and 300 to 400 u" for nickel A2R: This is a hard gold spec?? It looks like a ENIG spec. Although, the Ni is quite heavy, 150 uin is sufficient for most applications. The gol

soft gold vs immersion gold

Electronics Forum | Mon Aug 16 16:37:08 EDT 2004 | davef

As we mentioned in an earlier response in this thread [Q5], you do NOT want to solder to hard gold. Hard gold is a wear surface. [That's IT, that's the LIST.] If you want to solder to gold, then either use: * IPC-4552 ENIG specification, mentioned

Re: Black spots on gold finish pads.

Electronics Forum | Tue Dec 01 07:54:49 EST 1998 | kallol chakraborty

| | Hi folks , | | Lately we are seeing a lot of rawcards with black spots on the pads - most of them have Au finish(immersion gold) . We did a lot of inspecton after wave solder and found that only (fine pitch) QFP are affected the most. Our inspec

62sn36sn2ag on gold terminations?

Electronics Forum | Mon May 12 22:40:19 EDT 2003 | nyazga

I have always heard to use solder with 2 percent silver to reduce gold embrittlment. One vendor site said this is a myth. Does anyone know of a specific document recommending this such as IPC or MIL spec. ???