Accession Number : ADA189590

Title :   Laser Programming Integrated Circuits.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Spanburg, Craig S

PDF Url : ADA189590

Report Date : Dec 1987

Pagination or Media Count : 117

Abstract : Programmable circuits are building blocks that improve design efficiency. Each mask and field programming technique has its own set of advantages and disadvantages. This thesis considers laser cutting as an alternative programming technique. This effort involves designing, assembling, and demonstrating a laser programming system. The laser system includes lasers and optics, a microprobe station, and a motion controller. Software for remote operation of the motion controller and for generating the cutting location coordinates is also developed during the research. Two applications of laser programming, a 32-bit comparator and a serial multiplier, are examined. The design of the two chips illustrates laser programmable circuit design and layout considerations. Programming the fabricated 32-bit comparator demonstrates the laser system. Testing the comparator verifies the performance of a laser programmable circuit.

Descriptors :   *CHIPS(ELECTRONICS), *CIRCUITS, *COMPUTER PROGRAMMING, *CUTTING, *LASERS, *MODULAR CONSTRUCTION, COMPUTER PROGRAMS, CONTROL, COORDINATES, INTEGRATED CIRCUITS, MICROPROBES, MOTION, OPTICS, STATIONS, THESES

Subject Categories : Electrical and Electronic Equipment
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE