Mask for printing solder paste
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United States of America Patent
Stats
-
Jan 14, 1997
Issued Date -
N/A
app pub date -
Jun 12, 1995
filing date -
Oct 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mask for printing solder paste includes a mask plate, and first mask holes which are formed in the mask plate and have a first size, and second mask holes which are formed in the mask plate and have a second size smaller than the first size. The mask plate has a first region having the first mask holes, and a second region having the second mask holes. The mask plate has a first thickness in the first region, and a second thickness in the second region. The second thickness is smaller than the first thickness.
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