GB2319893B - ESD Protection circuit - Google Patents

ESD Protection circuit

Info

Publication number
GB2319893B
GB2319893B GB9804387A GB9804387A GB2319893B GB 2319893 B GB2319893 B GB 2319893B GB 9804387 A GB9804387 A GB 9804387A GB 9804387 A GB9804387 A GB 9804387A GB 2319893 B GB2319893 B GB 2319893B
Authority
GB
United Kingdom
Prior art keywords
protection circuit
esd protection
esd
circuit
protection
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.)
Expired - Fee Related
Application number
GB9804387A
Other versions
GB9804387D0 (en
GB2319893A (en
Inventor
Gordon Motley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard Co
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
Priority claimed from US08/190,756 external-priority patent/US5561577A/en
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB9804387D0 publication Critical patent/GB9804387D0/en
Publication of GB2319893A publication Critical patent/GB2319893A/en
Application granted granted Critical
Publication of GB2319893B publication Critical patent/GB2319893B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/0203—Particular design considerations for integrated circuits
    • H01L27/0248—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
    • H01L27/0251—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
    • H01L27/0259—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using bipolar transistors as protective elements
    • H01L27/0262—Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices using bipolar transistors as protective elements including a PNP transistor and a NPN transistor, wherein each of said transistors has its base coupled to the collector of the other transistor, e.g. silicon controlled rectifier [SCR] devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
GB9804387A 1994-02-02 1995-01-20 ESD Protection circuit Expired - Fee Related GB2319893B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/190,756 US5561577A (en) 1994-02-02 1994-02-02 ESD protection for IC's
GB9501161A GB2286287B (en) 1994-02-02 1995-01-20 Improved ESD protection for IC's

Publications (3)

Publication Number Publication Date
GB9804387D0 GB9804387D0 (en) 1998-04-22
GB2319893A GB2319893A (en) 1998-06-03
GB2319893B true GB2319893B (en) 1998-07-29

Family

ID=26306350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9804387A Expired - Fee Related GB2319893B (en) 1994-02-02 1995-01-20 ESD Protection circuit

Country Status (1)

Country Link
GB (1) GB2319893B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001273434A1 (en) * 2000-07-13 2002-01-30 Broadcom Corporation Methods and systems for improving esd clamp response time
US7439592B2 (en) 2004-12-13 2008-10-21 Broadcom Corporation ESD protection for high voltage applications
US7505238B2 (en) 2005-01-07 2009-03-17 Agnes Neves Woo ESD configuration for low parasitic capacitance I/O

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435047A2 (en) * 1989-12-19 1991-07-03 National Semiconductor Corporation Electrostatic discharge protection for integrated circuits

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0435047A2 (en) * 1989-12-19 1991-07-03 National Semiconductor Corporation Electrostatic discharge protection for integrated circuits

Also Published As

Publication number Publication date
GB9804387D0 (en) 1998-04-22
GB2319893A (en) 1998-06-03

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080120