Title:
IMPROVED METHOD FOR SIMULATION OF SOI ELEMENT
Document Type and Number:
Japanese Patent JP3418975
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simulate an SOI element by setting a floating body voltage to an optional desired value at the optional point of time during simulation by an electronic design model encoded by design software for the FET logic design of an SOI base.
SOLUTION: An ideal voltage source having a desired floating body voltage value is added to a model serially to an ideal current source having the value of the constant multiple of a voltage applied to itself. In the case a constant is zero, a current does not flow and an additional element does not affect a circuit. If the constant is not zero, the ideal current source is considered the same as a resistor, the current flows into a floating body node or flows out from there and the voltage is set. Other than the time of desiring the change of the floating body voltage, the constant is maintained at zero at all times. An improved process judges whether or not an element is classified into one of some categories by the topology analysis of a circuit element and decides which element of the circuit is in AC balance.
Inventors:
George E. Smith Third
Faribault Asada Raj
Paul Di Muench
Lawrence F. Wagner Jr.
Timothy El Walters
Faribault Asada Raj
Paul Di Muench
Lawrence F. Wagner Jr.
Timothy El Walters
Application Number:
JP2000263994A
Publication Date:
June 23, 2003
Filing Date:
August 31, 2000
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MASCHINES CORPORATION
International Classes:
G06F17/50; G06G7/48; H01L21/82; H01L21/84; H01L27/12; H01L29/00; H01L29/786; H01L; (IPC1-7): H01L21/82; G06F17/50; H01L29/00
Domestic Patent References:
| JP1153416A | ||||
| JP9186338A | ||||
| JP918010A | ||||
| JP5226368A |
Attorney, Agent or Firm:
Hiroshi Sakaguchi (1 person outside)