JPH0246762A - Semiconductor integrated circuit - Google Patents

Semiconductor integrated circuit

Info

Publication number
JPH0246762A
JPH0246762A JP19913888A JP19913888A JPH0246762A JP H0246762 A JPH0246762 A JP H0246762A JP 19913888 A JP19913888 A JP 19913888A JP 19913888 A JP19913888 A JP 19913888A JP H0246762 A JPH0246762 A JP H0246762A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
series
connected
gate
input
compared
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP19913888A
Inventor
Katsushi Asahina
Satoshi Takano
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To enable high speed operation and reduce gate input capacitance and occupied area, by a method wherein, when two or more insulated gate field effect transistors are connected in series, the gate length of the insulated gate field effect transistor is made short, as compared with the gate length of the one which is not connected in series.
CONSTITUTION: When at least one of an input A and an input B is 'high', either one of PMOSFET's P1A, P2A turns off. Since the MOSFET's are connected in series, the voltage applied between the source and drain of the PMOSFET becomes smaller than Vcc, an MISFET, whose gate length is short as compared with a circuit not connected in series, can be used in a circuit connected in series. As a result, the current of an MISFET increases, so that it is unnecessary to increase the gate width, and the gate capacitance is reduced. Thereby high speed operation is enabled.
COPYRIGHT: (C)1990,JPO&Japio
JP19913888A 1988-08-09 1988-08-09 Semiconductor integrated circuit Pending JPH0246762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19913888A JPH0246762A (en) 1988-08-09 1988-08-09 Semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19913888A JPH0246762A (en) 1988-08-09 1988-08-09 Semiconductor integrated circuit

Publications (1)

Publication Number Publication Date
JPH0246762A true true JPH0246762A (en) 1990-02-16

Family

ID=16402775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19913888A Pending JPH0246762A (en) 1988-08-09 1988-08-09 Semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPH0246762A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783846A (en) * 1995-09-22 1998-07-21 Hughes Electronics Corporation Digital circuit with transistor geometry and channel stops providing camouflage against reverse engineering
US5866933A (en) * 1992-07-31 1999-02-02 Hughes Electronics Corporation Integrated circuit security system and method with implanted interconnections
US5973375A (en) * 1997-06-06 1999-10-26 Hughes Electronics Corporation Camouflaged circuit structure with step implants
US6667245B2 (en) 1999-11-10 2003-12-23 Hrl Laboratories, Llc CMOS-compatible MEM switches and method of making
US6740942B2 (en) 2001-06-15 2004-05-25 Hrl Laboratories, Llc. Permanently on transistor implemented using a double polysilicon layer CMOS process with buried contact
US6791191B2 (en) 2001-01-24 2004-09-14 Hrl Laboratories, Llc Integrated circuits protected against reverse engineering and method for fabricating the same using vias without metal terminations

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6613661B1 (en) 1992-07-31 2003-09-02 Hughes Electronics Corporation Process for fabricating secure integrated circuit
US5866933A (en) * 1992-07-31 1999-02-02 Hughes Electronics Corporation Integrated circuit security system and method with implanted interconnections
US6294816B1 (en) 1992-07-31 2001-09-25 Hughes Electronics Corporation Secure integrated circuit
US5930663A (en) * 1995-09-22 1999-07-27 Hughes Electronics Corporation Digital circuit with transistor geometry and channel stops providing camouflage against reverse engineering
US6064110A (en) * 1995-09-22 2000-05-16 Hughes Electronics Corporation Digital circuit with transistor geometry and channel stops providing camouflage against reverse engineering
US5783846A (en) * 1995-09-22 1998-07-21 Hughes Electronics Corporation Digital circuit with transistor geometry and channel stops providing camouflage against reverse engineering
US5973375A (en) * 1997-06-06 1999-10-26 Hughes Electronics Corporation Camouflaged circuit structure with step implants
US6667245B2 (en) 1999-11-10 2003-12-23 Hrl Laboratories, Llc CMOS-compatible MEM switches and method of making
US6791191B2 (en) 2001-01-24 2004-09-14 Hrl Laboratories, Llc Integrated circuits protected against reverse engineering and method for fabricating the same using vias without metal terminations
US6740942B2 (en) 2001-06-15 2004-05-25 Hrl Laboratories, Llc. Permanently on transistor implemented using a double polysilicon layer CMOS process with buried contact

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