Structure of a ball grid array substrate with charts for indicating position of defective chips
AssigneeOrient Semiconductor Electronics Limited
InventorW. L. Whieh
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Abstract
A ball grid array substrate includes a circumferential edge provided with a plurality of charts each having a plurality of lattices corresponding to positions of chips on the ball grid array substrate for indicating positions of defective chips in different packaging procedures whereby positions of the defective chips can be easily observed.
Claims1
A ball grid array substrate comprising a circumferential edge provided with a plurality of charts each having a plurality of lattices corresponding to positions of chips on said ball grid array substrate for indicating positions of defective chips in different packaging procedures whereby positions of said defective chips can be easily observed.
Dependencies are inferred from the claim text.