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April 2005

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Subject:
From:
Lee parker <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Lee parker <[log in to unmask]>
Date:
Tue, 19 Apr 2005 17:30:35 -0400
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Most of the flash gold coming out of China is electroplated soft gold and no more than 2 micro inches thick. If you are aware of Chinese suppliers that will exceed 2 micro inches of soft gold I would be interested. For the most part they are using baths that are designed for high current densities that minimize the time required to perform the process.

Best regards

Lee 
  ----- Original Message ----- 
  From: Joyce Koo<mailto:[log in to unmask]> 
  To: [log in to unmask]<mailto:[log in to unmask]> 
  Sent: Tuesday, April 19, 2005 5:18 PM
  Subject: Re: [TN] ENIG vs Flash Gold


  my understanding of flash gold is electrolytic plated with 5-8 u-inches on
  electrolytic or electroless Ni.
  The ENIG is electroless Ni and immersion gold finishing.  The gold quality
  normally is inferior than the flash electrolytic gold... but, dissolution
  rate in solder may be a bit slower compare to the ENIG of same thickness....
  All the ENIG guys is going to shot me alive....
                              jk

  -----Original Message-----
  From: TechNet [mailto:[log in to unmask]]On Behalf Of Eddie Rocha
  Sent: Tuesday, April 19, 2005 5:07 PM
  To: [log in to unmask]<mailto:[log in to unmask]>
  Subject: Re: [TN] ENIG vs Flash Gold


  Flash gold is too general of a term. If you are to solder to the thinner
  gold successfully it must be less than 20 uin.
  -- Thanks,
  Eddie Rocha
  South Bay Circuits
  (480) 940-3125 x122

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