Brewer Science, Inc.

Jeffry Hunninghake

Terry Lowell Brewer

William J Latham

A broad spectrum light absorbing medium to be coated over photosensitive layers, such as a photoresist for integrated circuit 'chips' to act as a true surface for autofocus of the camera used to expose the photoresist. The product may also be used where a light impermeable, high contrast or black coating is needed, such as, in liquid crystal displays and light emitting diodes, photodiodes, solid state lasers, or patterning apertures on light-wave modulators. The coating absorbs light from 200 to 1000 nanometers. The coating has a polymer vehicle which can form a tightly adhering, thin, smooth and uniform coating. The coating includes a light absorbing dye. This light absorbing layer may be imageable.

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Rolla, MO, United States of America

Jeffry Hunninghake