Mold cavity identification markings for IC packages
First Claim
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1. An integrated circuit package marking method comprising the steps of:
- forming a plurality of indicia on a surface of an integrated circuit package, the indicia placed in an arrangement indicative of a particular mold cavity;
reading the plurality of indicia on the integrated circuit package to determine the mold cavity associated with the particular integrated circuit package.
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Abstract
The invention provides small-feature identifying markings for tracing completed IC packages to individual mold cavities. Preferred embodiments of the invention include IC packages and associated methods for forming indicia in a surface of an integrated circuit package in an arrangement indicative of a particular mold cavity. The indicia may be read to determine the particular mold cavity associated with the manufacture of an individual integrated circuit package. Preferred embodiments of the invention are included using surface dot or indentation indicia configured in a binary code arrangement.
48 Citations
23 Claims
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1. An integrated circuit package marking method comprising the steps of:
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forming a plurality of indicia on a surface of an integrated circuit package, the indicia placed in an arrangement indicative of a particular mold cavity;
reading the plurality of indicia on the integrated circuit package to determine the mold cavity associated with the particular integrated circuit package. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An integrated circuit package comprising:
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a semiconductor die encapsulated in mold compound;
a plurality of indicia indentations in a surface of the mold compound, the indicia disposed in an arrangement indicative of a particular mold cavity. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. An integrated circuit package comprising:
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a semiconductor die encapsulated in mold compound;
a plurality of surface dot indicia in a surface of the mold compound, the indicia disposed in an arrangement indicative of a particular mold cavity. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification