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January 2006

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TechNet <[log in to unmask]>
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TechNet E-Mail Forum <[log in to unmask]>, Steve Kelly <[log in to unmask]>
Date:
Wed, 11 Jan 2006 10:29:21 -0500
Reply-To:
TechNet E-Mail Forum <[log in to unmask]>, Lee parker <[log in to unmask]>
Subject:
Re: Wire bondable gold pads
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From:
Lee parker <[log in to unmask]>
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Gold is the most noble metal of all. Gold is essentia
Steve



Gold is the most noble metal of all. Gold is essentially inactive which is also why it is so valuable and difficult to dissolve. If oxides are forming on gold surfaces it is usually because the under coating is exposed at the surface or there are impurities in the gold. Since bondable gold is usually pure gold, impurities should not be present. It the problem is organic films, (which are not complexed to the gold) the problem may be residual or packing.



Best regards



Lee



J. Lee Parker, Ph.D.

JLP Consultants LLC

804 779 3389

  ----- Original Message ----- 

  From: Steve Kelly<mailto:[log in to unmask]> 

  To: [log in to unmask]<mailto:[log in to unmask]> 

  Sent: Wednesday, January 11, 2006 10:17 AM

  Subject: [TN] Wire bondable gold pads





  Good Morning to all,

  We manufacture various circuits with electroplated wire bondable gold.

  As the final operation before packaging and shipping we plasma clean.

  Our customer is under the impression that the gold can contaminate

  during shipping and storage. My question is do other suppliers do

  special nitrogen/vacuum packaging of product like this to prevent this

  or is this something that should not be happening. Thanks in advance.

  Steve Kelly



  Steve Kelly

  PH: (416) 750-8433

  FAX: (416) 750-0016

  CELL: (416) 577-8433





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