Accession Number : AD0163567

Title :   Method of Making an Optical Mask for Reproducing Circuit Boards.

Descriptive Note : Patent,

Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C

Personal Author(s) : Hensdale,Samuel H.

Report Date : 21 SEP 1971

Pagination or Media Count : 2

Abstract : The patent describes a method of making an etched stripline circuit board comprising a copper-clad substrate covered with an etch-resist Mylar tape. A precision coordinatograph is employed for cutting the circuit through the Mylar tape on a 1:1 scale; unneeded portions of the tape are stripped away, and the remaining portions of the tape are used as a resist during an etching process.

Descriptors :   (*MASKING, PRINTED CIRCUITS), (*PATENTS, MASKING), STRIP TRANSMISSION LINES, POLYESTER PLASTICS, TAPES

Subject Categories : Electrical and Electronic Equipment
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE