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:
Feb. 24, 1981
Filed:
Oct. 06, 1978
John D Macdougall, Westborough, MA (US);
Sprague Electric Company, North Adams, MA (US);
Abstract
A Hall-cell of relatively high sensitivity and low power consumption is provided in an isolated epitaxial pocket of an integrated circuit. The epitaxial layer is of opposite conductivity type to that of the supporting silicon substrate. The Hall-cell body of opposite conductivity type consists of an ion-implanted surface portion of the pocket and may have a thickness that is limited by a buried layer of the same type as that of the substrate. This Hall-cell is capable of being manufactured with closely controlled electrical properties and by steps imposing few restraints on the quality of other components in the integrated circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile