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:
Jun. 12, 1984
Filed:
Mar. 04, 1982
Harold F Lewis, Villa Park, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
A shielded amplifier adapted for use with an infrared detector array mounted on a focal plane and operating in a cryogenically cooled environment and adapted to receive a signal output from a high impedance signal source, the shielded amplifier being required to amplify the signal with relatively uniform gain over a predetermined bandwidth comprising a base substrate of semiconductor material, an integrated amplifier circuit means formed on the base substrate, a resistor connected for negative feedback between the output terminal and the input terminal, a conductive shield interposed between the resistor and the integrated amplifier circuit means, a first insulating means for insulating the resistor from the conductive shield, a second insulating means for insulating the conductive shield from the integrated circuit amplifier means; whereby the conductive shield is disposed to reduce stray parasitic capacitance thereby increasing the shielded amplifier uniform gain over a predetermined bandwidth.