Browse Prior Art Database

Measured Mirror Laser's Beam Adjustment

IP.com Disclosure Number: IPCOM000037547D
Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-29
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Balas, R: AUTHOR

Abstract

This article describes a simple and effective method of adjusting a laser mirror 11 to align a laser beam 13 from a gas laser 15 with the wafer serial number (not pictured) in a wafer serial reader. It avoids the lengthy trial and error method of the prior art.

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Measured Mirror Laser's Beam Adjustment

This article describes a simple and effective method of adjusting a laser mirror 11 to align a laser beam 13 from a gas laser 15 with the wafer serial number (not pictured) in a wafer serial reader. It avoids the lengthy trial and error method of the prior art.

By utilizing a micrometer head 17 secured to the laser reader casting 19 and the micrometer spindle 21 secured to the swivel assembly 23 attached to the back of the laser mirror 11, the laser mirror 11 can be moved quickly and accurately. The micrometer 16 allows a degree of precision not allowed by current manual methods of alignment. The preferred embodiment would allow the micrometer 16 to be removed when not in use by loosening a first set of locking set screws 25 on the spindel and swivel assembly 23 and a second set of screws 27 on the sleeve end. The set screws 25 and 27 hold the micrometer 16 in place while adjustments are made to the laser mirror alignment. The mirror lock bolt 29 is tightened to secure the laser mirror 11 in place after alignment.

(Image Omitted)

Disclosed anonymously.

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