Patents by Inventor Carlyle F. Smith, Jr.

Carlyle F. Smith, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of making a scratch-resistant mask for photolithographic processing
    Patent number: 4081314
    Abstract: Disclosed is a photomask and a method for the manufacture thereof. A metal stencil is disposed on a glass substrate such that only preselected areas of the glass which are to be made opaque are exposed. A grit-etch step follows in which depressions are formed in the glass substrate in the preselected areas. Fusible masking material is sprayed in the depressions through the metal stencil. The masking material is preferably in particulate form in a volatile carrier liquid. The carrier liquid is preferably first driven off and, then, the combination is exposed to a relatively high temperature that fuses the masking material to the substrate.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: March 28, 1978
    Assignee: General Electric Company
    Inventor: Carlyle F. Smith, Jr.
  • Scratch-resistant mask for photolithographic processing
    Patent number: 4049347
    Abstract: Disclosed is a photomask and a method for the manufacture thereof. A metal stencil is disposed on a glass substrate such that only preselected areas of the glass which are to be made opaque are exposed. A grit-etch step follows in which depressions are formed in the glass substrate in the preselected areas. Fusible masking material is sprayed in the depressions through the metal stencil. The masking material is preferably in particulate form in a volatile carrier liquid. The carrier liquid is preferably first driven off and, then, the combination is exposed to a relatively high temperature that fuses the masking material to the substrate.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: September 20, 1977
    Assignee: General Electric Company
    Inventor: Carlyle F. Smith, Jr.