JPS57152148A - Structure of integrated circuit for timepiece - Google Patents

Structure of integrated circuit for timepiece

Info

Publication number
JPS57152148A
JPS57152148A JP56038209A JP3820981A JPS57152148A JP S57152148 A JPS57152148 A JP S57152148A JP 56038209 A JP56038209 A JP 56038209A JP 3820981 A JP3820981 A JP 3820981A JP S57152148 A JPS57152148 A JP S57152148A
Authority
JP
Japan
Prior art keywords
timepiece
integrated circuit
light
covered
well layer
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
JP56038209A
Other languages
Japanese (ja)
Inventor
Heihachiro Ebihara
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.)
Citizen Holdings Co Ltd
Citizen Watch Co Ltd
Original Assignee
Citizen Holdings Co Ltd
Citizen Watch 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 Citizen Holdings Co Ltd, Citizen Watch Co Ltd filed Critical Citizen Holdings Co Ltd
Priority to JP56038209A priority Critical patent/JPS57152148A/en
Publication of JPS57152148A publication Critical patent/JPS57152148A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/552—Protection against radiation, e.g. light or electromagnetic waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)

Abstract

PURPOSE:To suppress influence of light to an integrated circuit for a timepiece and to reduce cost by simple mounting of the integrated circuit for the timepiece by a method wherein the junction part of an N type substrate and an electrode substrate of P-well layer is covered with an shading member to light. CONSTITUTION:The P-N junction part B of the electrode 22 of the P-well layer being not fed usually from an electric power source and the N type substrate 16a is covered with polysilicon 17 of the shading material to light. Accordingly generation of leakage in the opposite direction to be generated by irradiation of light is prevented, and the integrated circuit for timepiece to operate stably is obtained by simple mounting.
JP56038209A 1981-03-17 1981-03-17 Structure of integrated circuit for timepiece Pending JPS57152148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56038209A JPS57152148A (en) 1981-03-17 1981-03-17 Structure of integrated circuit for timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56038209A JPS57152148A (en) 1981-03-17 1981-03-17 Structure of integrated circuit for timepiece

Publications (1)

Publication Number Publication Date
JPS57152148A true JPS57152148A (en) 1982-09-20

Family

ID=12518924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56038209A Pending JPS57152148A (en) 1981-03-17 1981-03-17 Structure of integrated circuit for timepiece

Country Status (1)

Country Link
JP (1) JPS57152148A (en)

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