JPS6421833A - Membrane circuit - Google Patents

Membrane circuit

Info

Publication number
JPS6421833A
JPS6421833A JP62176377A JP17637787A JPS6421833A JP S6421833 A JPS6421833 A JP S6421833A JP 62176377 A JP62176377 A JP 62176377A JP 17637787 A JP17637787 A JP 17637787A JP S6421833 A JPS6421833 A JP S6421833A
Authority
JP
Japan
Prior art keywords
silver
circuit
paste
line width
silver paste
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
JP62176377A
Other languages
Japanese (ja)
Inventor
Hideharu Yamagishi
Yukihisa Taguchi
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing 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 Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP62176377A priority Critical patent/JPS6421833A/en
Publication of JPS6421833A publication Critical patent/JPS6421833A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/785—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/03—Composite
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/09—Use of materials for the conductive, e.g. metallic pattern
    • H05K1/092—Dispersed materials, e.g. conductive pastes or inks
    • H05K1/095—Dispersed materials, e.g. conductive pastes or inks for polymer thick films, i.e. having a permanent organic polymeric binder
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/24—Reinforcing of the conductive pattern

Landscapes

  • Contacts (AREA)

Abstract

PURPOSE:To reduce the amount of silver in use in silver paste and to make migration of silver particles suppressible by adding an organic conductive material in the silver paste which forms a membrane circuit. CONSTITUTION:Silver paste A1 is used to print a circuit pattern 2 for example 0.6mm in its line width and 0.3mm in its line interval pitch on a surface of one of two insulation sheets 1 provided, and next carbon paste 3 is used thereon to perfectly stick a silver pattern for example 0.8mm in its line width and 0.3mm in its line interval pitch and to obtain a circuit 10. Silver paste B1 is used to print a circuit pattern in the same line width and line interval pitch as above-mentioned on the other one of the insulation sheets 1, and next carbon paste is printed to form a circuit.
JP62176377A 1987-07-15 1987-07-15 Membrane circuit Pending JPS6421833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62176377A JPS6421833A (en) 1987-07-15 1987-07-15 Membrane circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62176377A JPS6421833A (en) 1987-07-15 1987-07-15 Membrane circuit

Publications (1)

Publication Number Publication Date
JPS6421833A true JPS6421833A (en) 1989-01-25

Family

ID=16012569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62176377A Pending JPS6421833A (en) 1987-07-15 1987-07-15 Membrane circuit

Country Status (1)

Country Link
JP (1) JPS6421833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888209A4 (en) * 1996-01-03 2000-08-16 Ferber Technologies L L C Electrical system having a multilayer conductive composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888209A4 (en) * 1996-01-03 2000-08-16 Ferber Technologies L L C Electrical system having a multilayer conductive composition

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