Title:
DESIGNING DEVICE OF PRINTED BASE BOARD
Document Type and Number:
Japanese Patent JPS5972566
Kind Code:
A
Abstract:
PURPOSE:To set a connection pattern without disturbing the wrirings within bus net groups, by dividing the surface of a printed nase board into a bus region and other two regions separated into back and forth sides of wiring centering on said bus region. CONSTITUTION:A central processor 18 calculates a connection pattern on a printed base board in accordance with the connection information given from a key input device 13. This arithmetic result is displayed to a CRT picture display device 14 and then delivered to a photoplotter 15. A bus region 2 occupied by a bus IC is obtained among the bus net groups from the connection information on distribution of parts on the base board. Then the bus net wiring direction is checked within the region 2. The region 2 is positioned on a boundary line 3, and other parts are divided into the 1st and 2nd regions 4 and 5. The terminals within the net groups are sorted into the 1st region 4 (1), the bus region 2 (2) and the 2nd region 5 (3) respectively. Then the terminals within the net groups are arranged in order of (1), (2) and (3).
Inventors:
IKEDA SATOSHI
Application Number:
JP18359082A
Publication Date:
April 24, 1984
Filing Date:
October 18, 1982
Export Citation:
Assignee:
YOKOGAWA HOKUSHIN ELECTRIC
International Classes:
H05K3/00; G03F1/00; G06F17/50; H01L21/82; (IPC1-7): G03F1/00; G06F15/20; H05K3/00
Attorney, Agent or Firm:
Naotaka Ide