JPS57186368A - Protective circuit for input - Google Patents

Protective circuit for input

Info

Publication number
JPS57186368A
JPS57186368A JP56072575A JP7257581A JPS57186368A JP S57186368 A JPS57186368 A JP S57186368A JP 56072575 A JP56072575 A JP 56072575A JP 7257581 A JP7257581 A JP 7257581A JP S57186368 A JPS57186368 A JP S57186368A
Authority
JP
Japan
Prior art keywords
electric field
surge
polygon
hole
input
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
JP56072575A
Other languages
Japanese (ja)
Inventor
Koichiro Masuko
Yasuharu Nagayama
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.)
Mitsubishi Electric Corp
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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56072575A priority Critical patent/JPS57186368A/en
Publication of JPS57186368A publication Critical patent/JPS57186368A/en
Pending 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

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)
  • Amplifiers (AREA)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
  • Protection Of Static Devices (AREA)

Abstract

PURPOSE:To prevent the concentration of an electric field to a connecting hole formed to an input signal course, and to obtain the input protective circuit for an MISFET having large surge dielectric resistance by shaping the plane form of the connecting hole in a polygon shaped by obtuse angles. CONSTITUTION:When the hole 9 electrically connecting an input signal terminal 1 and a resistor 2 takes a square or a rectangle, the electric field concentrates at rectangular sections, and junction breakdown and permanent breakdown such as the penetration of Al wiring are generated. When the form of the hole is the obtuse-angle polygon, the length of the shortest side of the polygon thereof is 2<1/2>mu or longer, the concentration of the electric field is avoided, and surge dielectric resistance is improved. According to this constitution, a circuit A incorporated into the MISFET type device formed onto a semiconductor substrate can sufficiently be protected from surge.
JP56072575A 1981-05-12 1981-05-12 Protective circuit for input Pending JPS57186368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072575A JPS57186368A (en) 1981-05-12 1981-05-12 Protective circuit for input

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072575A JPS57186368A (en) 1981-05-12 1981-05-12 Protective circuit for input

Publications (1)

Publication Number Publication Date
JPS57186368A true JPS57186368A (en) 1982-11-16

Family

ID=13493312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072575A Pending JPS57186368A (en) 1981-05-12 1981-05-12 Protective circuit for input

Country Status (1)

Country Link
JP (1) JPS57186368A (en)

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