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| Date: | Mon, 10 May 2010 20:14:16 -0400 |
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Check your vendor's recommendation about max heat and time. You might damaged the device.
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----- Original Message -----
From: Chris Mahanna [mailto:[log in to unmask]]
Sent: Monday, May 10, 2010 05:48 PM
To: [log in to unmask] <[log in to unmask]>
Subject: [TN] LED wiring bonding
It's all LEDs these days!
We have an FA that shows poor wire bonds to GaAlAs/GaAs in microsection after assembly. The failure is seen in the parts per hundred across different lots and slightly different part numbers of LEDs.
The assumption would be that LED wiring bonding defects are very rare. Is there something particular about these? Or is it the crimping and/or Pb-free assembly that is pulling them apart?
The ones that seem more susceptible are GaAlAs Double Heteros.
Thanks.
Chris
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