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SILICON POLYGON FABRICATION

IP.com Disclosure Number: IPCOM000026115D
Original Publication Date: 1990-Jun-30
Included in the Prior Art Database: 2004-Apr-05

Publishing Venue

Xerox Disclosure Journal

Abstract

Present polygon fabrication for raster output scanners (ROS) is a very difficult, complex, and costly process. The base material is aluminum which is diamond machined. It has been estimated that a diamond machining set-up cost for the fabrication of polygons is about $400,00O/machine with a usable lifetime of about 3 years. Diamond cutting bits are expensive (about $500 each) and are very sensitive to material composition. A slight change of impurities in the base material could affect machining operation. As a result, cutting bits are only good 50% of the time.