The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 1977
Filed:
Dec. 12, 1975
Applicant:
Inventors:
Frederick D Olney, Jr, Phoenix, AZ (US);
Dennis E Rich, Phoenix, AZ (US);
Assignee:
Honeywell Information Systems, Inc., Phoenix, AZ (US);
Primary Examiner:
Int. Cl.
CPC ...
B05C / ;
U.S. Cl.
CPC ...
118266 ;
Abstract
A positive pressure apparatus for depositing a thin, even layer of an adhering liquid material to seal openings on a metallic clad film-type carrier is disclosed. The openings, on the film side opposite the metallic lamination, are covered prior to the etching process in order to minimize undercutting by the etching material on the metallic lamination and to provide support for the resulting integrated circuit leads. The apparatus uses a positive pressure mechanism to force the fluid material through a porous ceramic element in order to obtain uniform flow.