The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2007
Filed:
Jun. 16, 2004
Ross E. Gough, Foothill Ranch, CA (US);
Steven Neal Rivkin, Laguna Niguel, CA (US);
Jan G. Abrahamsson, San Clemente, CA (US);
Carl R. Messenger, Mission Viejo, CA (US);
Arun Makhija, Fremont, CA (US);
Gordon K. Rydquist, San Jose, CA (US);
Michael J. Cullen, Discovery Bay, CA (US);
Ross E. Gough, Foothill Ranch, CA (US);
Steven Neal Rivkin, Laguna Niguel, CA (US);
Jan G. Abrahamsson, San Clemente, CA (US);
Carl R. Messenger, Mission Viejo, CA (US);
Arun Makhija, Fremont, CA (US);
Gordon K. Rydquist, San Jose, CA (US);
Michael J. Cullen, Discovery Bay, CA (US);
Western Digital Technologies, Inc., Lake Forest, CA (US);
Abstract
A method of binning disk drives by evaluating quality metrics prior to a final quality audit is disclosed. A number of disk drives are assembled, and a plurality of quality metrics are generated for each disk drive representing a plurality of operating characteristics. The quality metrics for each disk drive are evaluated for binning the disk drives into a plurality of lots including a first lot and a second lot. A final quality audit (FQA) is performed by executing a number of write and read operations for a plurality of the disk drives in each lot and classifying each disk drive as passing or failing the FQA. If the number of disk drives that fail the FQA out of the first lot falls below a first threshold, the first lot is classified as acceptable for a first tier customer. If the number of disk drives that fail the FQA out of the second lot falls below a second threshold, the second lot is classified as acceptable for a second tier customer.