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Servo Patterning on Glass by Magnetic Latent Image Transfer

IP.com Disclosure Number: IPCOM000121600D
Original Publication Date: 1991-Sep-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Rice, SL: AUTHOR [+2]

Abstract

Servo patterning on glass for optical storage application is typically accomplished by photopolymerization (2P) process, or etching the servo information into glass using complicated lithographic process. An alternative is to use magnetography and hyper-fine liquid toner development. By using this magnetic latent image process, unlimited number of copies can be developed without print quality deterioration.

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Servo Patterning on Glass by Magnetic Latent Image Transfer

      Servo patterning on glass for optical storage application
is typically accomplished by photopolymerization (2P) process, or
etching the servo information into glass using complicated
lithographic process.  An alternative is to use magnetography and
hyper-fine liquid toner development.  By using this magnetic latent
image process, unlimited number of copies can be developed without
print quality deterioration.

      The typical development process is shown in Fig. 1. The latent
image may be either on magnetic belt or drum. Once the image is fixed
on the glass disk, the servo pattern can be transferred into the
glass substrate using either excimer laser ablation or reactive ion
etching (RIE) process, as shown in Fig. 2.