Semiconductor integrated circuit having a switch, an electrically-conductive electrode line and an electrically-conductive virtual line

Patent metadata

Field	Value
Publication number	US-9058979-B2
Application number	US-201414263598-A
Country	US
Kind code	B2
Filing date	Apr 28, 2014
Priority date	Sep 18, 2007
Publication date	Jun 16, 2015
Grant date	Jun 16, 2015

Abstract

A semiconductor integrated circuit including: a circuit block having an internal voltage line; an annular rail line forming a closed annular line around the circuit block and supplied with one of a power supply voltage and a reference voltage; and a plurality of switch blocks arranged around the circuit block along the annular rail line, the plurality of switch blocks each including a voltage line segment forming a part of the annular rail line and a switch for controlling connection and disconnection between the voltage line segment and the internal voltage line.

First claim

What is claimed is:

1. A semiconductor integrated circuit comprising:
a switch in a switch wiring layer, a buffer circuit being electrically connected to the switch;
an electrically-conductive electrode line in a line wiring layer, the electrode line being between the buffer circuit and a power shutoff object circuit block;
an electrically-conductive virtual line in the line wiring layer, the virtual line being between the electrode line and the power shutoff object circuit bl…

Assignees

• Sony Corp

Inventors

• Ogata Hiromi

Classifications

• H10D84/85

  Electricity · mapped topic

• H03K17/16

  Electricity · mapped topic

• H03K3/012

  Electricity · mapped topic

• H03K19/0185

  Electricity · mapped topic

• H10D84/907

  Electricity · mapped topic