Title:
METHOD AND SYSTEM FOR VIA HOLE AUTOMATIC GENERATION
Document Type and Number:
Japanese Patent JP3145323
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To automatically generate via holes by specifying intervals of the generation of the via holes for a shield pattern and sequentially generating via holes, which are connected to specified connection destinations at specified intervals on the basis of a specific position on the shield, pattern as start point.
SOLUTION: A signal line to be encircled with the shield pattern is specified by using a keyboard 20, a mouse 22, etc. Then, the shield pattern with a specific pattern width is automatically generated at specific intervals. When the shield pattern can be generated, a signal line is encircled at a specific interval and the shield pattern with the specific pattern width is automatically generated. Then, the length of the outer periphery of the shield pattern is detected and the number of via holes, which are automatically generated is calculated from the specific length and interval. The via holes are automatically generated in order along the outer periphery of the shield pattern at the specific intervals from the start point. Then, the generation positions of the via holes are corrected and the via holes are automatically generated at the specific intervals.
Inventors:
Kiyoshi Takagi
Application Number:
JP33295896A
Publication Date:
March 12, 2001
Filing Date:
November 28, 1996
Export Citation:
Assignee:
Zuken Co., Ltd.
International Classes:
H05K9/00; G06F17/50; (IPC1-7): G06F17/50; H05K9/00
Domestic Patent References:
| JP512383A | ||||
| JP7262231A |
Attorney, Agent or Firm:
Junichi Ueshima