Electronics Forum: niau (Page 1 of 13)

Re: BGA and PCB finishing

Electronics Forum | Wed Mar 22 12:53:43 EST 2000 | David Spilker

Be careful if you use Ni/Au. The "black pad" phenomenum can be crippling. We moved from Ni/Au to OSP because of it. I also don't want to return to the lack of flatness of HASL.

PCB Surface Finishing

Electronics Forum | Thu Oct 12 08:46:16 EDT 2000 | T Jones

Several online PCB fabrication quote forms offer SMOBC as a surface finish along with HASL, Ni/AU, etc. How does one specifify SMOBC for traces and untented vias, and elctroless Ni/Au for smt pads? Are these processes mutually exclusive? Or can I g

Re: BGA and PCB finishing

Electronics Forum | Wed Mar 22 12:53:43 EST 2000 | David Spilker

Be careful if you use Ni/Au. The "black pad" phenomenum can be crippling. We moved from Ni/Au to OSP because of it. I also don't want to return to the lack of flatness of HASL.

Dull joints caused by NiAu PCB surface ?

Electronics Forum | Thu Nov 01 03:10:07 EST 2001 | Brian Sloth Bentzen

Will the gold from some Ni/Au surfaces make the solder joints appear dull and a slightly rugged on the surface ? Does anyone have any experience with this ? Thanks !

press fit on Ni/Au board finish

Electronics Forum | Thu Apr 18 14:00:35 EDT 2002 | Romain

Is anyone has experience on problems with press-fit on Ni/Au board finish. Connectors pins are SnPb finished. I am particulary interested by experiences or documentation in very agressive environmental conditions (avionics or space buisness) Thanks r

Silver finish components soldered on Ni-Au finish pads

Electronics Forum | Tue Apr 04 12:44:08 EDT 2006 | Andrew

Anyone knows if there are some issues when you solder Silver finish components on Ni-Au finish pads with Sn/Pb/Ag solder paste (Indium)? (I must use components with silver finish) Thanks

Same wave process do not apply to all finish board

Electronics Forum | Fri Oct 14 10:55:07 EDT 2005 | Mika

We have a simular problem with Ni/Au; especially whith pcb thickness more than 1.8mm. Note: These boards have been through reflow process also. 1.)Is there a maximum board thickness where it would be almost impossible to get a decent hole fil? 2.)Wi

SMT hand soldering on HASL or Ni-Au boards?

Electronics Forum | Tue Apr 03 11:08:21 EDT 2001 | vsorin

Hi, Our engineering board has to decide which technology is better for the hand soldering of the SMT components: HASL or Chemical Ni-Au. We have an automatic line for SMD assembling and our experience shows us that for this automatic line is better

problem in solderability

Electronics Forum | Wed Sep 10 09:43:49 EDT 2008 | gregoryyork

If its Ni/Au and there is no wetting then it should be there you have everything else shown.

Re: HASL?

Electronics Forum | Thu Jun 29 07:48:59 EDT 2000 | Mark

Welcome Bob, HASL stands for "Hot Air Solder Level" and is the final finish the raw boards guys place on the solder pads on the PCB. There are two popular raw board finishes, HASL which is a solder finish and NiAu which is Nickle Gold, and is a Gol

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