Hello Werner Engelmaier,

Although I couldn't recall the "exact" chemistry of the intermetallic
phases or which layers are near the copper or near the solder, I gave
Poh Kong Hui process recommendations which are proven to reduce
dewetting.
Thats what this forum is for.  I appriciate the constructive criticism.

Now, what are your recommendations for Poh Kong Hui request for advise?

(the original request to the TECHNET from Poh)

From: Poh Kong Hui
To: [log in to unmask]
Subject: [TECHNET] (TechNet): Assy: Dewetting