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:
Nov. 15, 1983
Filed:
Dec. 08, 1980
Joseph J Bakewell, Boxford, MA (US);
Dynamics Research Corporation, Wilmington, MA (US);
Abstract
An electrostatic print head and method of fabrication therefor in which a head is provided having a precision high resolution array of styli of intended cross-section and an interconnect pattern for simple connection to driving circuits. A planar thin film pattern of spaced metal electrode lines is provided by photolithographic and electroforming techniques on one surface of a glass or ceramic substrate, and a spaced array of planar thin film buss lines are similarly formed on the opposite surface. The electrode lines and buss lines are formed by vacuum deposition of a metal onto the substrate surfaces, etching into intended patterns, and electroforming to the required thickness and cross-sections. Electronic components can be provided in film form on the same substrate as the electrode lines.