Hi Victor-

Yes, copper wirebond technology is now available (I've only seen this done
as ball bonding). We haven't upgraded our equipment for it as of yet, but
the kit isn't real expensive. I understand that the balls are harder, so
cratering is probably seen more often. I don't know offhand what temperature
the welding is done at.

Aluminum is cheaper,  very easy to bond with (room temperature welding), and
doesn't need cover gas. But only available as wedge bonding, which can't
match the pitch of balls.

Wayne

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Tuesday, April 14, 2015 9:01 AM
To: [log in to unmask]
Subject: [TN] Copper Wire Bonds

Fellow TechNetters:

   What is the story behind Copper Wire Bonds.   I have heard of them but
now I have witness one.   Any details out there on this technology?   I will
have to search archives.

Victor,


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