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. 25, 1998
Filed:
Jul. 01, 1996
Manjunath Doreswamy, Sunnyvale, CA (US);
Aleksandar Pance, Sunnyvale, CA (US);
Yuan-Jung Lin, Santa Clara, CA (US);
Sun Microsystems, Inc., Palo Alto, CA (US);
Abstract
Disclosed is a system for automatically generating tables of buffer data which can be used during integrated circuit design to select appropriate buffers for signal distribution networks. The generated buffer data may be used by automated place and route systems to generate signal distribution networks having minimal skew. In the table, incrementally varying network features or criteria are provided (in the form of a table or list for example). Examples of such features include the length of a line connecting an L4 buffer to one or more L5 buffers and the number of L5 buffers driven by a single L4 buffer. For each incremental value of the network feature or features, one or more buffer types is specified. These buffer types have been previously modeled in the environment of the incremental value of the network features and found to meet certain criteria necessary to minimize skew. If when designing a signal distribution network the designer (or design tool) chooses L4 buffers from the proper locations on the table, then skew should be minimized.