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From: | |
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Date: | Wed, 11 May 2005 07:38:47 +0700 |
Content-Type: | text/plain |
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Following is one of reasons cause Tombstone:
- Vertial shifted part: Mounting condition is NG
- Not same solder paste volume at two sides of part: Printing condition
is NG.
- Temperature at two electrodes of part is different: when PCBA going
through reflow machine, one electrode
of part will be heated and smell first -- > tombstone
Best regard.
----- Original Message -----
From: "Suganthi" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, May 10, 2005 2:51 PM
Subject: [TN] Tombstone
Dear All,
What is called Tombstone effect ,please explain me , and tell me how to
overcome this problem..
Thanks and Regards
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Suganthi
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