Test system for micromirror arrays

Peter Duerr; Thomas Tanneberger; Alexander Wolter; Wolfram Kluge; Wolfgang Doleschal; Hubert K. Lakner

doi:10.1117/12.396507

22 August 2000 Test system for micromirror arrays

Peter Duerr, Thomas Tanneberger, Alexander Wolter, Wolfram Kluge, Wolfgang Doleschal, Hubert K. Lakner

Proceedings Volume 4178, MOEMS and Miniaturized Systems; (2000) https://doi.org/10.1117/12.396507
Event: Micromachining and Microfabrication, 2000, Santa Clara, CA, United States

Abstract

Over the last few years, high resolution spatial light modulators (SLMs) have been developed at the IMS Dresden. These are fabricated using one of two different technological processes. In one version a flexible, highly reflecting aluminum coating of about 50nm is evaporated onto a elastic layer, while the other version has quite rigid aluminum mirrors that are suspended by flexible hinges above the substrate. Both versions are fabricated on top of a CMOS DRAM matrix, which allows the addressing of individual pixels. So far SLMs with over 2 million pixels have been produced. In order to ensure a high quality of these SLMs a map of the SLM under test is needed showing the exact position of defective pixels together with the type of defect e.g. not responding, always deflected, wrong spring constant, poorly reflecting surface. Additionally information on the local and global flatness is required. This task can only be handled by an automated test stitching together many single measurements. A test system has bene set up using a white light interferometer. This allows to measure the response of each and every SLM pixel to applied voltages.

Citation Download Citation

Peter Duerr, Thomas Tanneberger, Alexander Wolter, Wolfram Kluge, Wolfgang Doleschal, and Hubert K. Lakner "Test system for micromirror arrays", Proc. SPIE 4178, MOEMS and Miniaturized Systems, (22 August 2000); https://doi.org/10.1117/12.396507

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available