Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01L
SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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2223/00
Details relating to semiconductor or other solid state devices covered by the group H01L23/00
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H01L2223/544
Marks applied to semiconductor devices or parts
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H01L2223/54493
Peripheral marks on wafers, e.g. orientation flats, notches, lot number
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