GB1367983A - Electrical circuit elements - Google Patents

Electrical circuit elements

Info

Publication number
GB1367983A
GB1367983A GB2469272A GB2469272A GB1367983A GB 1367983 A GB1367983 A GB 1367983A GB 2469272 A GB2469272 A GB 2469272A GB 2469272 A GB2469272 A GB 2469272A GB 1367983 A GB1367983 A GB 1367983A
Authority
GB
United Kingdom
Prior art keywords
loop
resistor element
annular
resistor
inductors
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.)
Expired
Application number
GB2469272A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2469272A priority Critical patent/GB1367983A/en
Publication of GB1367983A publication Critical patent/GB1367983A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • H05K1/167—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed resistors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N97/00—Electric solid-state thin-film or thick-film devices, not otherwise provided for
    • 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
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/03—Conductive materials
    • H05K2201/0302—Properties and characteristics in general
    • H05K2201/0317—Thin film conductor layer; Thin film passive component
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09218—Conductive traces
    • H05K2201/09263—Meander

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

1367983 Resistors; inductors; component assemblies STANDARD TELEPHONES & CABLES Ltd 25 May 1972 24692/72 Headings H1R H1S and H1T A thin or thick film resistor element formed on an insulating substrate comprises a closed loop 1 (or a C-shaped element) of material, e.g. nickel-chrome, with conducting electrodes 2 and 3 contacting the inner and outer peripheries of the loop respectively, connection being made to the centre electrode 2 via a bridging conductor carried on an insulating bridge (not shown) across the resistor element or by an insulated extension 8 formed in a channel 7 in the resistor element and outer electrode. The resistor may be incorporated in planar, spiral inductors, being positioned at the centre of the spiral, for use in low "Q" tuned circuits, and also in RC networks, the film being formed on the surface of a substrate in which interleaved plates are embedded, Fig. 4 (not shown). Other closed loops may be used, i.e. annular, and formulµ for calculating the resistance across a square loop and annular loop are derived.
GB2469272A 1972-05-25 1972-05-25 Electrical circuit elements Expired GB1367983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2469272A GB1367983A (en) 1972-05-25 1972-05-25 Electrical circuit elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2469272A GB1367983A (en) 1972-05-25 1972-05-25 Electrical circuit elements

Publications (1)

Publication Number Publication Date
GB1367983A true GB1367983A (en) 1974-09-25

Family

ID=10215767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2469272A Expired GB1367983A (en) 1972-05-25 1972-05-25 Electrical circuit elements

Country Status (1)

Country Link
GB (1) GB1367983A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485370A (en) * 1984-02-29 1984-11-27 At&T Technologies, Inc. Thin film bar resistor
US4725925A (en) * 1983-12-26 1988-02-16 Hitachi, Ltd. Circuit board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725925A (en) * 1983-12-26 1988-02-16 Hitachi, Ltd. Circuit board
US4485370A (en) * 1984-02-29 1984-11-27 At&T Technologies, Inc. Thin film bar resistor

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee