Dummy wafers simulating silicon from glass or fused silica

Low Cost Dummy Wafers

Dummy wafers from glass are available in sizes from 2" up to 450 mm diameter meeting SEMI specifications to simulate Silicon wafers. These dummy wafers are a low cost alternative to expensive Silicon wafers for testing semiconductor equipment.

With the advent of 300 mm Silicon wafer technology, a need has arisen for Silicon wafer substitutes. Valley Design took the initiative many years ago by introducing Glass and Ceramic wafers made to SEMI specifications. Newly available, Valley can now provide dummy wafers up to 450 mm diameter, with surfaces either lapped opaque or polished transparent.

The usual glass for this purpose is Soda Lime or Borosilicate. When temperature is involved, Borosilicate withstands higher temperatures. Valley Design offers a full line of different glasses and even Quartz or Ceramic material for this application.

Standard sizes are 2", 3", 100mm, 125mm, 150mm, 200mm, 300mm and 450mm diameters. Thickness can range from 0.005 inches to several millimeters. Edges are ground and beveled, and an indexing notch or flat is optional.

Return to Home Page Optical polishing, lapping, dicing and optical components polishing

 

 

 

 

 

 

Return to Home Page Optical polishing, lapping, dicing and optical components polishing

print page


 

Valley Design East
Phoenix Park Business Center
2 Shaker Road, Bldg. E-001
Shirley, MA 01464
Phone: 978.425.3030
Fax: 978.425.3031

Valley Design
West 
Santa Cruz, CA 95060 
Phone: 831.420.0595 
Fax: 831.420.0592



©2015 Valley Design Corp. All Rights Reserved