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. 27, 2007
Filed:
Dec. 17, 2004
Walter Iandolo, Santa Clara, CA (US);
Yitzhak Gilboa, San Jose, CA (US);
Artur Balasinski, Cupertino, CA (US);
Walter Iandolo, Santa Clara, CA (US);
Yitzhak Gilboa, San Jose, CA (US);
Artur Balasinski, Cupertino, CA (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
In one embodiment, a dummy pattern having a plurality of dummy features (e.g., waffles) are employed to help achieve a relatively planar surface by chemical-mechanical planarization (CMP). The dummy features are placed based on a dielectric pattern density of a region of an integrated circuit. The dummy features may be added to the design of the integrated circuit using a one pass or two pass approach. The dummy features in a second pass may be fragmented using an AndNot algorithm, for example.