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. 25, 2003
Filed:
Aug. 03, 2000
Applicant:
Inventors:
Ray E. Kuhn, Macungie, PA (US);
David G. Martin, Bethlehem, PA (US);
Rose E. Williams, New Tripoli, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/900 ; H01L 2/976 ; H01L 2/994 ; H01L 3/1062 ; H01L 3/1113 ;
U.S. Cl.
CPC ...
H01L 2/900 ; H01L 2/976 ; H01L 2/994 ; H01L 3/1062 ; H01L 3/1113 ;
Abstract
The specification describes techniques for isolating noisy subcircuits in integrated analog/digital devices. Isolation is obtained using a modification of triple well isolation wherein the deep isolation implant is restricted to the digital circuits only to prevent noise from the digital circuits from propagating to the analog sections through the buried implant. Resistor sections are also separated from the buried isolation implant.