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:
Feb. 26, 2002
Filed:
Sep. 19, 2000
Russel Shirley, Pflugerville, TX (US);
Michael R. Conboy, Austin, TX (US);
Horace Paul Bowser, Jr., Austin, TX (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
The physical movement of reticles and solder bump masks within a wafer processing plant are continually tracked and documented in a historical database for the useful life of the reticles or masks. In an example embodiment of the mask tracking method, the method includes moving the masks from one location to another in mask pods. In addition, a mask data set is generated for each mask composed of a mask identification code cross-referenced to a pod identification code and the mask data sets are then stored in a computer arrangement. The mask data sets are then updated in the computer arrangement to include a facility location identification code as each mask moves to a subsequent location during wafer processing. An important advantage is that wafer lots and reticles can now be matched to an event on the processing line and stored as data for later review and analysis.