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Patent for Sale:

Semiconductor Fabrication Photo Resist Coating    

Semiconductor fabrication photo resist coating

Overview

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Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 396: Photography

Photographic apparatus, generally for recording a picture made by a source of light on a photographic medium. It includes fluid-treating apparatus for development of film, a removable film-holder unit, hood, camera housing, camera setting indicator and certain accessories related to photography not otherwise provided for such as studio structure, camera mounting or rest, camera attachment, retouching, or burnishing device. Non-chemical processes involving photographic apparatus are included in this class.

Subclass 611: Plate or wafer-type photographic medium

Class 118: Coating Apparatus

pparatus for applying or obtaining a surface coating on a base and/or apparatus for impregnating base materials and takes all such apparatus not provided for in other classes. The coating obtained may be permanent or transitory. The coating may be supplied solely by extraneous materials, as in a painting or waxing operation, or may be supplied wholly or in part by the base materials as in the formation of an oxide coating on a metal base. The coating may consist of an emulsion, dispersion, solution, admixture or oil which is clearly disclosed as leaving a residual film, layer or continuous deposit on the base.

Subclass 52: WITH MEANS TO CENTRIFUGE WORK

Class 355: Photocopying

Apparatus and methods for photos: graphically copying information from an original or carrier that is not classified elsewhere, generally employing a concentrated source of light and an image receiving medium with a photosensitive emulsion surface. Various plural and composite types of copies are included such as those involving plural projected images including multicolor and duplex.

Subclass 27: With developing