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. 02, 1996
Filed:
May. 20, 1994
Robert W Filas, Bridgewater, NJ (US);
Herschel M Marchman, New Providence, NJ (US);
AT&T Corp., Murray Hill, NJ (US);
Abstract
A probe device is fabricated from a glass fiber segment by first isotropically etching only a portion of the diameter of only a bottom region thereof. Next, the bottom region is cleaved, to produce a cleaved bottom endface. Then the cleaved endface and a height of the sidewalls of the bottom region that is less than its total height are coated with a protective masking layer. The fiber segment is immersed in an isotropic etching solution, whereby its diameter is reduced. Finally, the masking layer is stripped off, and the bottom region is etched again until the (maximum) diameter of the cleaved endface is reduced to a desired value.