Microscopic bar code for component identification and method for

Details Microscopic bar code for component identification and method for Microscopic bar code for component identification and method for

1997-02-05

1999-05-25

Le, Thien

Registers

Coded record sensors

Particular sensor structure

235464, 235454, 23546232, G06K 710

Patent

active

059071443

ABSTRACT:
The invention is a method and apparatus for imprinting a microscopic code on a small surface, such as the edge of a magnetic disk, or the head used to read or write information to the disk and a magnetic disk imprinted with such microscopic identification codes. The invention provides a way to identify products using microscopic codes, such as bar codes, by using a laser to imprint such microscopic bar codes on a product. The identification meets the stringent cleanliness requirements of the computer industry without generating debris, and so is exceptionally suited for use in identifying hard disks and heads used in a disk drive.

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