Title:
【発明の名称】回路図エディタ、回路図作成方法及び記録媒体
Document Type and Number:
Japanese Patent JP3139451
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the human errors caused when a layout design circuit diagram is produced based on a simulating circuit diagram. SOLUTION: A circuit diagram information data base 2 stores a circuit diagram showing the component elements of a circuit which are divided into plural layers. These layers include a basic component element of the circuit (1), the electrically ideal wiring (2), a parasitic element of the wiring, etc., (3) and a signal source and an additional circuit which are connected to the outside of the circuit (4). A layer table 3 stores the combinations of layers. A circuit diagram production part 1 refers to the table 3 to produce a circuit diagram and sends a simulating circuit (layers 1+3+4) to a simulation part 5. The layer 3 is updated after the simulation carried out at the part 5. Then the part 1 refers to the table 3 to send a layout designing circuit (layers 1+2) to a layout design part 6.
Inventors:
Takao Ikeuchi
Application Number:
JP10729598A
Publication Date:
February 26, 2001
Filing Date:
April 17, 1998
Export Citation:
Assignee:
NEC
International Classes:
G06F17/50; (IPC1-7): G06F17/50; G06F17/50
Domestic Patent References:
| JP221365A | ||||
| JP2125368A | ||||
| JP877241A |
Attorney, Agent or Firm:
Furuzo Satoshi (1 person outside)
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