Advanced Fabrication Processes for Functional Electronic Blocks

摘要

A study of the exponential voltage-current behavior of a certain reverse biased NPN transistor was initiated. Investigations of the silicon adaptive element were continued. Emphasis shifted from an optical to a thermal adaptive element. Design of the thermally stabilized dc amplifier is progressing. Device evaluation and design refinements are included. Development of an RC active filter for use as a bandpass amplifier is continuing. Performance tests of breadboard models were made and data is presented. Preliminary design work was completed for a 40 cps thermal oscillator. A high input impedance audio amplifier was designed. Performance tests of a breadboard model were made and photomasks for the integrated circuits are in process. (Author)