JPS5685837A - Semiconductor device - Google Patents

Semiconductor device

Info

Publication number
JPS5685837A
JPS5685837A JP16296079A JP16296079A JPS5685837A JP S5685837 A JPS5685837 A JP S5685837A JP 16296079 A JP16296079 A JP 16296079A JP 16296079 A JP16296079 A JP 16296079A JP S5685837 A JPS5685837 A JP S5685837A
Authority
JP
Japan
Prior art keywords
layer
type
layers
transistor
collector
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
JP16296079A
Other languages
Japanese (ja)
Inventor
Takeshi Fukuda
Katsuharu Mitono
Tadashi Kirisako
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16296079A priority Critical patent/JPS5685837A/en
Priority to DE8080304070T priority patent/DE3072002D1/en
Priority to EP80304070A priority patent/EP0029350B1/en
Publication of JPS5685837A publication Critical patent/JPS5685837A/en
Priority to US06/574,583 priority patent/US4613887A/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

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)
  • Bipolar Transistors (AREA)
  • Element Separation (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To improve the switching speed of a semiconductor device by extending a base layer to an isolating layer, forming an impurity layer of the same conductivity type as a collector between the base layer and the isolating layer and connecting the impurity layer to the collector. CONSTITUTION:An n type collector layer 3 is epitaxially formed on a p type Si substrate 1 having an n<+> type buried layer, and is isolated with a p<+> type layer 4. A p type base layer 5 reaching the layer 4 is formed on the layer 3, and an n<+> type layer 8 is formed over the layers 4 and 5. When a transistor is turned on, the space between the layers 5 and 4 is pinched off with a depletion layer from p-n junctions formed between the layers 3 and 6 and between the layers 6 and 8. When the transistor is turned off, these depletion layers are not almost expanded from these junctions, the space between the layers 5 and 4 is in connected state, and the stored carrier is rapidly discharged. Accordingly, the switching speed of the transistor can be improved.
JP16296079A 1979-11-14 1979-12-15 Semiconductor device Pending JPS5685837A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP16296079A JPS5685837A (en) 1979-12-15 1979-12-15 Semiconductor device
DE8080304070T DE3072002D1 (en) 1979-11-14 1980-11-13 An output transistor of a ttl device with a means for discharging carriers
EP80304070A EP0029350B1 (en) 1979-11-14 1980-11-13 An output transistor of a ttl device with a means for discharging carriers
US06/574,583 US4613887A (en) 1979-11-14 1984-01-27 Semiconductor device with a means for discharging carriers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16296079A JPS5685837A (en) 1979-12-15 1979-12-15 Semiconductor device

Publications (1)

Publication Number Publication Date
JPS5685837A true JPS5685837A (en) 1981-07-13

Family

ID=15764544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16296079A Pending JPS5685837A (en) 1979-11-14 1979-12-15 Semiconductor device

Country Status (1)

Country Link
JP (1) JPS5685837A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110282A (en) * 1973-02-20 1974-10-21
JPS49110283A (en) * 1973-02-20 1974-10-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49110282A (en) * 1973-02-20 1974-10-21
JPS49110283A (en) * 1973-02-20 1974-10-21

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