Guenter,

If you have access to it, Mil-Std 883, Test Method 2010 - Internal
Visual Monolithic, and test Method 2017 - Internal Visual Hybrid both
cover the visual appearance of ball-wedge bonds as well as wedge-wedge
bonds, beam lead, etc.

I have generically felt that the Mil Std's specification for Max
deformation has been too great.  If I ever squashed the bonds out that
much, I would consider them to be over-bonded and weak.  

I believe very strongly in wire pull data vs 'looks'. 

Steve

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Guenter Grossmann
Sent: Wednesday, January 30, 2008 11:16 AM
To: [log in to unmask]
Subject: [TN] Wedge bonds

Hi all

Is there a standard specifying the shape of wedge bonds?


Guenter





_____________________________________________________

EMPA
Swiss Federal Laboratories  for Materials Testing and Research
Centre for Reliability
Guenter Grossmann,  Senior Engineer

8600 Duebendorf
Switzerland

Phone: xx41 44 823 4279
Fax :     xx41 44 823 4054
mail:     [log in to unmask]
_____________________________________________________

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