Electronics Forum: immersion gold (Page 1 of 33)

soft gold vs immersion gold

Electronics Forum | Thu Aug 12 14:59:50 EDT 2004 | davef

Russ: Immersion gold [imm Au] is "soft" and it's "gold", but it is NOT "soft gold". Here's the question for your board house: If imm Au is "soft gold" and imm Au self-limits

soft gold vs immersion gold

Electronics Forum | Wed Aug 11 16:09:50 EDT 2004 | Kris

Hi How does one distinquish between hard gold and immersion gold ? thickness is 4 to 10 u" for Au and 300 to 400 u" for nickel what happens if the gold drops below 3" and the nickel is above 350" what are the typical failure modes associated with

soft gold vs immersion gold

Electronics Forum | Thu Aug 12 14:50:12 EDT 2004 | russ

This is interesting, I was once told by a PCB supplier that "soft gold" was immersion and the "hard gold" was the plated. But I agree with Dave F., Chris, what's going on? Russ

soft gold vs immersion gold

Electronics Forum | Thu Aug 19 14:58:24 EDT 2004 | Kris

thanks all

soft gold vs immersion gold

Electronics Forum | Mon Aug 16 11:49:44 EDT 2004 | Kris

Hi Guys thanks for the replies. Dave, the spec is not for enig but for hard gold does your response alter if thats the case /

soft gold vs immersion gold

Electronics Forum | Mon Aug 16 18:09:33 EDT 2004 | Kris

ok I agree there has been a confusion with terminology When you say electrolytic soft gold with a minimum thickness of 5-8 of Au, is there a standard that you spec this from ?

soft gold vs immersion gold

Electronics Forum | Mon Aug 16 16:26:19 EDT 2004 | Kris

what about areas that are soldered ? This is def not a Enig process and the specs are as they are not sure why thanks a lot for your help

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 | 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

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

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