JPS55133552A - Semiconductor integrated circuit - Google Patents

Semiconductor integrated circuit

Info

Publication number
JPS55133552A
JPS55133552A JP4012679A JP4012679A JPS55133552A JP S55133552 A JPS55133552 A JP S55133552A JP 4012679 A JP4012679 A JP 4012679A JP 4012679 A JP4012679 A JP 4012679A JP S55133552 A JPS55133552 A JP S55133552A
Authority
JP
Japan
Prior art keywords
type
region
integrated circuit
layer
island region
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
JP4012679A
Other languages
Japanese (ja)
Inventor
Tadashi Kishi
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
Nippon Electric Co Ltd
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4012679A priority Critical patent/JPS55133552A/en
Publication of JPS55133552A publication Critical patent/JPS55133552A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/76—Making of isolation regions between components
    • H01L21/761—PN junctions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Element Separation (AREA)

Abstract

PURPOSE:To provide a universal integrated circuit simply in high integrity by forming an island region of the same conducting type as a high impurity density buried layer directly over a high impurity density buried region in a semiconductor substrate, making the island region contact with the buried layer and thus forming a transistor, resistors and the like on the island region. CONSTITUTION:An n<+>type buried layer 2 is selectively formed on the surface of a p-type semiconductor substrate 1. A p-type epitaxial layer 3 is then formed thereon, and an n-type region 4 is formed by an ion implantation process. Unit functions of npn transistor, diode, resistors and the like are then formed in the n-type ion implanted region 4. A resistor 9 and a MOS transistor 10 as also formed on the region where n-type ion is not implanted of the layer 3. An isolation is conducted by thick oxide films 5. Thus, the epitaxial layer of the same conducting type as the substrate is formed to form an island region therein by a simple electric isolation to reduce the margin in designing it so as to enhance the integrity of the semiconductor integrated circuit.
JP4012679A 1979-04-03 1979-04-03 Semiconductor integrated circuit Pending JPS55133552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4012679A JPS55133552A (en) 1979-04-03 1979-04-03 Semiconductor integrated circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4012679A JPS55133552A (en) 1979-04-03 1979-04-03 Semiconductor integrated circuit

Publications (1)

Publication Number Publication Date
JPS55133552A true JPS55133552A (en) 1980-10-17

Family

ID=12572116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4012679A Pending JPS55133552A (en) 1979-04-03 1979-04-03 Semiconductor integrated circuit

Country Status (1)

Country Link
JP (1) JPS55133552A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011680A (en) * 1973-06-01 1975-02-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011680A (en) * 1973-06-01 1975-02-06

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