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:
Aug. 13, 2019
Filed:
Dec. 30, 2015
Stmicroelectronics (Rousset) Sas, Rousset, FR;
Abderrezak Marzaki, Marseilles, FR;
Yoann Goasduff, Fuveau, FR;
Virginie Bidal, Fuveau, FR;
Pascal Fornara, Pourrières, FR;
STMICROELECTRONICS (ROUSSET) SAS, Rousset, FR;
Abstract
A method for producing an integrated circuit pointed element is disclosed. An element has a projection with a concave part directing its concavity towards the element. The element includes a first etchable material. A zone is formed around the concave part of the element. The zone includes a second material that is less rapidly etchable than the first material for a particular etchant. The first material and the second material are etched with the particular etchant to form an open crater in the concave part and thus to form a pointed region of the element.