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:
Nov. 04, 2003
Filed:
Jun. 28, 2000
Toshihiko Nishio, Moriyama, JP;
Shinji Nakamura, Shiga-ken, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus for designing a printed wiring board comprises an input section for receiving information necessary to design the board, information on components to be mounted on the board, and information on connection between the components; a storage section for storing the information such as the board information, the component information, the connection information, and the information obtained form printed wiring boards designed in the past; a display section for displaying the input information and various information on designing; and a calculation/control section for performing predetermined calculations by the use of various information stored in the storage section and controlling the input section, the display section, and the storage section, wherein the ratio of a total wirable length to a total wiring length necessary to connect components is determined on the basis of various information stored in the section , and a PWB grade of the board is selected based on this ratio. A method of performing these calculations to obtain such results is also provided.