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. 16, 1980
Filed:
Jun. 29, 1979
Richard A Ghez, Millwood, NY (US);
John B Gunn, Mt. Kisco, NY (US);
Robert Hammer, Brookfield Center, CT (US);
James A Van Vechten, Millwood, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Uniform holes with a diameter of the order of 1 micrometer or larger can be formed by an etching operation which employs the combination properties of the surface tension of the etch coupled with a force on the meniscus of the etch in the hole to cause the etching to stop when one hole reaches the proper size and to permit the etching to continue on all other holes until they reach the same size.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile