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:
Mar. 30, 2010
Filed:
Jan. 16, 2008
Francesco Martini, Alzate Brianza, IT;
Maurizio Lenzi, Novara, IT;
Ubaldo Mastromatteo, Bareggio, IT;
Francesco Martini, Alzate Brianza, IT;
Maurizio Lenzi, Novara, IT;
Ubaldo Mastromatteo, Bareggio, IT;
STMicroelectronics S.R.L., Agrate Brianza (MI), IT;
Abstract
A process for manufacturing an integrated device includes the steps of: providing a silicon substrate on which a silicon dioxide structure is arranged and forming a trench having first and second essentially vertical walls relative to the substrate in the structure by means of anisotropic-type etching. A concavity having a sloped wall relative to the substrate is formed by isotropic-type etching which removes the second wall so that the concavity is open to the trench and the sloped wall faces the first wall.