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. 19, 1990
Filed:
Mar. 28, 1988
Applicant:
Inventors:
John B Robbins, Sherman, TX (US);
Lawrence D Dyer, Richardson, TX (US);
Mohendra S Bawa, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
134-2 ;
Abstract
Trace quantities of elemental iodine are added to deionized water used in the manufacture of semiconductor materials and devices in order to sterilize the water and the delivery system of microscopic life forms, and to leave the iodine in the flow all the way through processing except for those process steps where iodine may be detrimental to the process step.