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March 1997

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Tue, 25 Mar 1997 20:05:47 +0800 (SST)
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From [log in to unmask] Tue Mar 25 11:
36:44 1997
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[log in to unmask] ( Oliver Kierse )
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Re: Assy: Lifted lead (QFP)
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Poh Kong Hui <[log in to unmask]>
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Hello Olly and Technetters,

Could you tell me what is LQFP ?. And I am not too sure the meaning of
"thicker version" of the std QFP....

The interesting part is that it only happened on only one part number, 
and the board contains other  QFPs of other vendors, but no problem.

Any idea ???

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At 09:25 AM 3/25/97 GMT, you wrote:
>Hi Poh, 
>
>I've heard of this where a 14x20 LQFP was used. Basically
>a combination of internal TCE mismatch and absorbed 
>moisture caused the bowing through reflow.
>	The 'fix' was to move to a thicker version of the
>same part (std QFP).
>
>regards
>
>Olly
>

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