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

Thermal head and method for manufacturing same Download PDF

Info

Publication number
EP0914957A3
EP0914957A3 EP98204412A EP98204412A EP0914957A3 EP 0914957 A3 EP0914957 A3 EP 0914957A3 EP 98204412 A EP98204412 A EP 98204412A EP 98204412 A EP98204412 A EP 98204412A EP 0914957 A3 EP0914957 A3 EP 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Withdrawn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 Inc filed Critical Seiko Instruments Inc
Priority claimed from EP95935562A external-priority patent/EP0737588B1/en
Publication of EP0914957A2 publication Critical patent/EP0914957A2/en
Publication of EP0914957A3 publication Critical patent/EP0914957A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B41J2/33505—Constructional details
    • B41J2/3351—Electrode layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B41J2/33555—Structure of thermal heads characterised by type
    • B41J2/3357—Surface type resistors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B41J2/3359—Manufacturing processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electronic Switches (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)

Abstract

The invention provides a method for manufacturing a thermal head, the method comprising a step of forming a heat generating resistor (3), a step of forming a wiring electrode (4, 4a, 12) that is electrically connected to the heat generating resistor, and a step of forming a protective film (9) for clothing the heat generating resistor and the wiring electrode in the vicinity thereof, characterised in that
  • the wiring electrode forming step includes at least one sub-step wherein the contour of a resist pattern is made smaller midway during a wiring electrode etching process than in an earlier sub-step, whereby
  • the section configuration of the peripheral edge portion of the wiring electrode is formed into a tapered or stepped configuration through execution of each sub-step.
    • Figure 00000001
    EP98204412A 1994-10-31 1995-10-25 Thermal head and method for manufacturing same Withdrawn EP0914957A3 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    JP267474/94 1994-10-31
    JP26747494A JP3376128B2 (en) 1994-10-31 1994-10-31 Operation test equipment for fire detector
    JP26747494 1994-10-31
    EP95935562A EP0737588B1 (en) 1994-10-31 1995-10-25 Thermal head and method of manufacturing same

    Related Parent Applications (1)

    Application Number Title Priority Date Filing Date
    EP95935562A Division EP0737588B1 (en) 1994-10-31 1995-10-25 Thermal head and method of manufacturing same

    Publications (2)

    Publication Number Publication Date
    EP0914957A2 EP0914957A2 (en) 1999-05-12
    EP0914957A3 true EP0914957A3 (en) 1999-10-20

    Family

    ID=17445350

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98204412A Withdrawn EP0914957A3 (en) 1994-10-31 1995-10-25 Thermal head and method for manufacturing same

    Country Status (2)

    Country Link
    EP (1) EP0914957A3 (en)
    JP (1) JP3376128B2 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP2002036614A (en) * 2000-07-25 2002-02-06 Seiko Instruments Inc Thin film thermal head
    JP2012183701A (en) * 2011-03-04 2012-09-27 Seiko Instruments Inc Thermal head, and method of manufacturing the same

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4096510A (en) * 1974-08-19 1978-06-20 Matsushita Electric Industrial Co., Ltd. Thermal printing head
    US4719477A (en) * 1986-01-17 1988-01-12 Hewlett-Packard Company Integrated thermal ink jet printhead and method of manufacture
    EP0518467A2 (en) * 1991-04-20 1992-12-16 Canon Kabushiki Kaisha Substrate for recording head, recording head and method for producing same
    US5252182A (en) * 1990-11-20 1993-10-12 Samsung Electronics Co., Ltd. Method for manufacturing thermal recording device
    US5439554A (en) * 1992-06-10 1995-08-08 Canon Kabushiki Kaisha Liquid jet recording head fabrication method

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS5530468A (en) 1978-08-28 1980-03-04 Teijin Ltd Production of high denier false twisted yarn
    JPS56129184A (en) 1980-03-17 1981-10-09 Toshiba Corp Thermal head
    JPS63135261A (en) 1986-11-28 1988-06-07 Tdk Corp Production of thermal head

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4096510A (en) * 1974-08-19 1978-06-20 Matsushita Electric Industrial Co., Ltd. Thermal printing head
    US4719477A (en) * 1986-01-17 1988-01-12 Hewlett-Packard Company Integrated thermal ink jet printhead and method of manufacture
    US5252182A (en) * 1990-11-20 1993-10-12 Samsung Electronics Co., Ltd. Method for manufacturing thermal recording device
    EP0518467A2 (en) * 1991-04-20 1992-12-16 Canon Kabushiki Kaisha Substrate for recording head, recording head and method for producing same
    US5439554A (en) * 1992-06-10 1995-08-08 Canon Kabushiki Kaisha Liquid jet recording head fabrication method

    Also Published As

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

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