Wafer positioning

In semiconductor manufacturing, microlithography is used to transfer the pattern of circuitry from a photomask - a quartz plate containing the master copy of a microscopic IC - to a wafer on which the ICs are made.

To allow a reliable and effective production the individual wafers have to be positioned with a very high precision. Complex light guides are used for this purpose to transport monochromatic laser light to markers on the wafers. The diffracted light is then detected and transported with the help of other light guides to an analysis system, allowing a real time control of the manufacturing process.
Exhibitions & Events
21.
March
Exhibition IDS 2017, Cologne, Germany, 03-21 to 03-25-2017
04.
April
Exhibition Aircraft Interiors Expo, Hamburg, Germany, 04-04 to 04-06-2017
11.
April
Exhibition 2017 SPIE Defense + Commercial Sensing Expo, Anaheim, CA, USA, 04-11 to 04-13-2017
Contact
Lighting and Imaging
SCHOTT North America Inc.

122 Charlton Street
Southbridge, MA 01550
USA
E-Mail to SCHOTT+ 1 (508) 765-9744
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