JPS648643A - Fuse circuit - Google Patents

Fuse circuit

Info

Publication number
JPS648643A
JPS648643A JP62164224A JP16422487A JPS648643A JP S648643 A JPS648643 A JP S648643A JP 62164224 A JP62164224 A JP 62164224A JP 16422487 A JP16422487 A JP 16422487A JP S648643 A JPS648643 A JP S648643A
Authority
JP
Japan
Prior art keywords
layer
fuse
substrate
polycrystalline silicon
covering
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
JP62164224A
Other languages
Japanese (ja)
Inventor
Yasuaki Nukada
Kazuharu Takeda
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP62164224A priority Critical patent/JPS648643A/en
Publication of JPS648643A publication Critical patent/JPS648643A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/931—Shapes of bond pads
    • H10W72/932—Plan-view shape, i.e. in top view

Landscapes

  • Design And Manufacture Of Integrated Circuits (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To obtain a fuse circuit of semiconductor having a small size and high reliability by associating a diode of a semiconductor substrate and a fuse of a polycrystalline silicon layer. CONSTITUTION:A fuse circuit 1 is composed of a silicon oxide film 3 formed on a p-type semiconductor substrate 2, an n-type diffused layer D1 surrounded by the film 3, a polycrystalline silicon layer F covering part of the layer, a silicon oxide film 4 covering a whole surface, and aluminum wirings formed in its opening. Part of the layer F constructs each fuse fi. To melt a fuse f1 connected in parallel with a resistor r1, a potential in which the substrate 2 and the layer D1 become forward is applied between the substrate 2 and a pad P1, and a fuse melting current flows. A fuse circuit 1a has a groove 6 selectively formed on the film 3 formed to cover the substrate 2, a polycrystalline silicon layer Fa covering the whole surface and part of the film 3, an n-type diffused layer D1a formed in contact with the polycrystalline silicon layer in the bottom of the groove 6 on the substrate 2, a silicon oxide film 4a covering polycrystalline silicon layers Fa, Fb, and aluminum wirings 5.
JP62164224A 1987-06-30 1987-06-30 Fuse circuit Pending JPS648643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164224A JPS648643A (en) 1987-06-30 1987-06-30 Fuse circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164224A JPS648643A (en) 1987-06-30 1987-06-30 Fuse circuit

Publications (1)

Publication Number Publication Date
JPS648643A true JPS648643A (en) 1989-01-12

Family

ID=15789031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164224A Pending JPS648643A (en) 1987-06-30 1987-06-30 Fuse circuit

Country Status (1)

Country Link
JP (1) JPS648643A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004266165A (en) * 2003-03-03 2004-09-24 Sharp Corp Nonvolatile storage element, nonvolatile storage circuit, nonvolatile storage card, and recording / reproducing device
JP2009010396A (en) * 2008-07-22 2009-01-15 Ricoh Co Ltd Voltage setting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004266165A (en) * 2003-03-03 2004-09-24 Sharp Corp Nonvolatile storage element, nonvolatile storage circuit, nonvolatile storage card, and recording / reproducing device
JP2009010396A (en) * 2008-07-22 2009-01-15 Ricoh Co Ltd Voltage setting circuit

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