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:
Jan. 04, 1994
Filed:
May. 04, 1992
Sankaranarayanan Ganesan, Scottsdale, AZ (US);
Shun-Meen Kuo, Chandler, AZ (US);
Howard M Berg, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A fast and simple method of determining a desired level of cleanliness of an inorganic surface is performed by correlating a level of cleanliness of many inorganic surfaces having varying thicknesses of organic contamination with reliability tests. The level of cleanliness is in terms of a measurement from a water drop test. The level of cleanliness between two inorganic surfaces can also be compared by utilizing the combination of a UV/ozone clean and the level of cleanliness to determine the relative amount of contamination present on one inorganic surface as compared to the other.