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EP0914957A3 - Thermal head and method for manufacturing same - Google Patents

Thermal head and method for manufacturing sameDownload PDF

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Publication number
EP0914957A3
EP0914957A3EP98204412AEP98204412AEP0914957A3EP 0914957 A3EP0914957 A3EP 0914957A3EP 98204412 AEP98204412 AEP 98204412AEP 98204412 AEP98204412 AEP 98204412AEP 0914957 A3EP0914957 A3EP 0914957A3
Authority
EP
European Patent Office
Prior art keywords
wiring electrode
forming
heat generating
sub
thermal head
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.)
Withdrawn
Application number
EP98204412A
Other languages
German (de)
French (fr)
Other versions
EP0914957A2 (en
Inventor
Yuji c/o Seiko Instruments Inc. Nakamura
Yoshinori C/O Seiko Instruments Inc. Sato
Yoshiaki C/O Seiko Instruments Inc. Saita
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments IncfiledCriticalSeiko Instruments Inc
Priority claimed from EP95935562Aexternal-prioritypatent/EP0737588B1/en
Publication of EP0914957A2publicationCriticalpatent/EP0914957A2/en
Publication of EP0914957A3publicationCriticalpatent/EP0914957A3/en
Withdrawnlegal-statusCriticalCurrent

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Abstract

The invention provides a method for manufacturing a thermal head, the methodcomprising a step of forming a heat generating resistor (3), a step of forming a wiringelectrode (4, 4a, 12) that is electrically connected to the heat generating resistor, and astep of forming a protective film (9) for clothing the heat generating resistor and thewiring electrode in the vicinity thereof, characterised in that
  • the wiring electrode forming step includes at least one sub-step wherein thecontour of a resist pattern is made smaller midway during a wiring electrode etchingprocess than in an earlier sub-step, whereby
  • the section configuration of the peripheral edge portion of the wiring electrode isformed into a tapered or stepped configuration through execution of each sub-step.
    • Figure 00000001
    EP98204412A1994-10-311995-10-25Thermal head and method for manufacturing sameWithdrawnEP0914957A3 (en)

    Applications Claiming Priority (4)

    Application NumberPriority DateFiling DateTitle
    JP267474/941994-10-31
    JP26747494AJP3376128B2 (en)1994-10-311994-10-31 Operation test equipment for fire detector
    JP267474941994-10-31
    EP95935562AEP0737588B1 (en)1994-10-311995-10-25Thermal head and method of manufacturing same

    Related Parent Applications (1)

    Application NumberTitlePriority DateFiling Date
    EP95935562ADivisionEP0737588B1 (en)1994-10-311995-10-25Thermal head and method of manufacturing same

    Publications (2)

    Publication NumberPublication Date
    EP0914957A2 EP0914957A2 (en)1999-05-12
    EP0914957A3true EP0914957A3 (en)1999-10-20

    Family

    ID=17445350

    Family Applications (1)

    Application NumberTitlePriority DateFiling Date
    EP98204412AWithdrawnEP0914957A3 (en)1994-10-311995-10-25Thermal head and method for manufacturing same

    Country Status (2)

    CountryLink
    EP (1)EP0914957A3 (en)
    JP (1)JP3376128B2 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication numberPriority datePublication dateAssigneeTitle
    JP2002036614A (en)*2000-07-252002-02-06Seiko Instruments IncThin film thermal head
    JP2012183701A (en)*2011-03-042012-09-27Seiko Instruments IncThermal head, and method of manufacturing the same

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication numberPriority datePublication dateAssigneeTitle
    US4096510A (en)*1974-08-191978-06-20Matsushita Electric Industrial Co., Ltd.Thermal printing head
    US4719477A (en)*1986-01-171988-01-12Hewlett-Packard CompanyIntegrated thermal ink jet printhead and method of manufacture
    EP0518467A2 (en)*1991-04-201992-12-16Canon Kabushiki KaishaSubstrate for recording head, recording head and method for producing same
    US5252182A (en)*1990-11-201993-10-12Samsung Electronics Co., Ltd.Method for manufacturing thermal recording device
    US5439554A (en)*1992-06-101995-08-08Canon Kabushiki KaishaLiquid jet recording head fabrication method

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication numberPriority datePublication dateAssigneeTitle
    JPS5530468A (en)1978-08-281980-03-04Teijin LtdProduction of high denier false twisted yarn
    JPS56129184A (en)1980-03-171981-10-09Toshiba CorpThermal head
    JPS63135261A (en)1986-11-281988-06-07Tdk CorpProduction of thermal head

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication numberPriority datePublication dateAssigneeTitle
    US4096510A (en)*1974-08-191978-06-20Matsushita Electric Industrial Co., Ltd.Thermal printing head
    US4719477A (en)*1986-01-171988-01-12Hewlett-Packard CompanyIntegrated thermal ink jet printhead and method of manufacture
    US5252182A (en)*1990-11-201993-10-12Samsung Electronics Co., Ltd.Method for manufacturing thermal recording device
    EP0518467A2 (en)*1991-04-201992-12-16Canon Kabushiki KaishaSubstrate for recording head, recording head and method for producing same
    US5439554A (en)*1992-06-101995-08-08Canon Kabushiki KaishaLiquid jet recording head fabrication method

    Also Published As

    Publication numberPublication date
    EP0914957A2 (en)1999-05-12
    JPH08129685A (en)1996-05-21
    JP3376128B2 (en)2003-02-10

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