公开(公告)号：JP2002215706A

公开(公告)日：2002-08-02

申请号：JP2001338435

申请日：2001-11-02

Applicant: IBM

Inventor： COHN JOHN M ,  DEAN ALVAR A ,  HATHAWAY DAVID J ,  LACKEY DAVID E ,  LEPSIC THOMAS M ,  LICHTENSTEIGER SUSAN K ,  TETREAULT SCOTT A ,  VENTRONE SEBASTIAN T

IPC: G06F17/50 ,  H01L21/82

Abstract: PROBLEM TO BE SOLVED: To provide a logical and physical constitution for a voltage island. SOLUTION: In design of a semiconductor chip, it is parted by the unit of bin, which means plural ranges in the design. Design of one semiconductor chip can thus be sliced to various ranges, and these ranges can be allotted to various voltage levels. Each bin can be regarded as one voltage island. Circuits in the design can be added to various bins, or eliminated from the various bins. Circuit speed and power can be increased or reduced by this. When the circuit is disposed in the bin to which a high voltage is allotted, speed and power are increased. When the circuit is disposed in the bin having a low voltage, speed and power are reduced. The size and position of the bin can also be changed. By repeating these steps, the optimum power consumption can be achieved while satisfying other standards such as constraint related to speed.