Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Pcb – mcm design
Reexamination Certificate
2011-07-19
2011-07-19
Dinh, Paul (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Integrated circuit design processing
Pcb, mcm design
C716S052000, C716S111000, C716S126000, C716S136000, C716S139000, C702S057000
Reexamination Certificate
active
07984414
ABSTRACT:
In designing a printed circuit board, first and second copies of views of first and second major surfaces of the board respectively, are created. The first and second copies are positioned to contact each other. First and second segments on a side of the printed circuit board and normal to a first element in the first copy and a second element in the second copy respectively are obtained. A third segment joining ends of the first and second segments is obtained, and a point dividing the third segment according to a ratio of a distance from the first element to the side and a distance from the second element to the side is calculated. Distances from the first element to the point and from the point to the second element are calculated, and a creepage distance, a sum of the two distances and a thickness of the board, is obtained.
REFERENCES:
patent: 6266389 (2001-07-01), Murayama et al.
patent: 6839885 (2005-01-01), Ahrikencheikh
patent: 7031853 (2006-04-01), Kageura
patent: 2004/0254749 (2004-12-01), Kageura
patent: 2005/0138592 (2005-06-01), Morgan et al.
patent: 2005-10835 (2005-01-01), None
Dinh Paul
Fujitsu Limited
Greer Burns & Crain Ltd.
Nguyen Nha T
LandOfFree
Printed circuit board design support apparatus, method, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Printed circuit board design support apparatus, method, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printed circuit board design support apparatus, method, and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2711509