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:
Dec. 23, 1986
Filed:
Nov. 28, 1984
Roland J Handy, Northridge, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A charge coupled device (CCD) amplifier is utilized for amplification of charge packets as small as 500 electrons into usable signals. Very little noise is injected into the signal. The charge amplifier consists of two connecting electrodes, one designated as the detector G.sub.1 and the other designated as the response G.sub.2, physically separated by any convenient distance on the same LSI chip surface on which an NMOS field effect transistor (FET) is attached. Also coupled to the FET is another electrode G.sub.3 designated as the amplifier gate. The charge amplifier structure is embedded in the silicon dioxide layer, with the detector response, and amplifier electrode being located some convenient distance above the silicon-silicon dioxide interface.