Title:
集積回路装置
Document Type and Number:
Japanese Patent JP4748867
Kind Code:
B2
Abstract:
In an integrated circuit device, element power supply lines connected to a circuit containing a plurality of cells, element ground lines connected thereto, a trunk power supply line connected to each of the element power supply lines, and a trunk ground line connected to each of the element ground lines are provided in a first wiring layer. A branch power supply line connected to the trunk power supply line and a branch ground line connected to the trunk ground line are provided in an upper wiring layer located above the first wiring layer. A wiring structure is determined based on a wiring structure equation expressing the relations among a voltage drop in the lines, the area occupied thereby, and a current consumed thereby and on a circuit characteristic equation expressing, when the circuit is subdivided while the ratio between the area of the circuit and a current consumed thereby is held constant, the relation between an area occupied by a circuit resulting from subdivision and a current consumed thereby.
Inventors:
Kusumoto Keiichi
Application Number:
JP2001060090A
Publication Date:
August 17, 2011
Filing Date:
March 05, 2001
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01L21/3205; H01L21/822; H01L21/82; H01L23/52; H01L23/528; H01L25/065; H01L25/07; H01L25/18; H01L27/04
Domestic Patent References:
| JP7078877A | ||||
| JP6021224A | ||||
| JP6208994A | ||||
| JP4196475A | ||||
| JP61148834A | ||||
| JP62084533A | ||||
| JP2000277696A |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita