CA1278392C - Apparatus for and method of positioning and synchronizing a writing laser beam - Google Patents

Apparatus for and method of positioning and synchronizing a writing laser beam

Info

Publication number
CA1278392C
CA1278392C CA000547447A CA547447A CA1278392C CA 1278392 C CA1278392 C CA 1278392C CA 000547447 A CA000547447 A CA 000547447A CA 547447 A CA547447 A CA 547447A CA 1278392 C CA1278392 C CA 1278392C
Authority
CA
Canada
Prior art keywords
laser beam
semiconductor chip
writing
scanning laser
codes
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 - Lifetime
Application number
CA000547447A
Other languages
English (en)
French (fr)
Inventor
Elko Doering
Meinrad Kempter
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.)
LASARRAY HOLDING AG
Original Assignee
LASARRAY HOLDING AG
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 LASARRAY HOLDING AG filed Critical LASARRAY HOLDING AG
Application granted granted Critical
Publication of CA1278392C publication Critical patent/CA1278392C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H10P34/00—
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/015—Aligning or centering of the sensing device with respect to the record carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/042—Automatically aligning the laser beam
    • H10W46/00—

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Laser Beam Printer (AREA)
  • Laser Beam Processing (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
CA000547447A 1986-09-22 1987-09-21 Apparatus for and method of positioning and synchronizing a writing laser beam Expired - Lifetime CA1278392C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3781/86A CH670592A5 (enExample) 1986-09-22 1986-09-22
CH03781/86-6 1986-09-22

Publications (1)

Publication Number Publication Date
CA1278392C true CA1278392C (en) 1990-12-27

Family

ID=4263345

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000547447A Expired - Lifetime CA1278392C (en) 1986-09-22 1987-09-21 Apparatus for and method of positioning and synchronizing a writing laser beam

Country Status (10)

Country Link
US (1) US4809014A (enExample)
EP (1) EP0262088B1 (enExample)
JP (1) JPS6394622A (enExample)
KR (1) KR880004559A (enExample)
AT (1) ATE64238T1 (enExample)
CA (1) CA1278392C (enExample)
CH (1) CH670592A5 (enExample)
DE (1) DE3770559D1 (enExample)
IL (1) IL83969A (enExample)
ZA (1) ZA876229B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927226A (en) * 1989-03-27 1990-05-22 General Electric Company Multiplexer for high power CW lasers
JP2004200221A (ja) * 2002-12-16 2004-07-15 Toray Eng Co Ltd レーザマーキング方法及び装置
US20050087520A1 (en) * 2003-10-28 2005-04-28 Lixiao Wang Method and apparatus for selective ablation of coatings from medical devices
US7315038B2 (en) * 2005-08-26 2008-01-01 Electro Scientific Industries, Inc. Methods and systems for positioning a laser beam spot relative to a semiconductor integrated circuit using a processing target as an alignment target
US7297972B2 (en) * 2005-08-26 2007-11-20 Electro Scientific Industries, Inc. Methods and systems for positioning a laser beam spot relative to a semiconductor integrated circuit using a processing target as a metrology target
US20110187025A1 (en) * 2010-02-04 2011-08-04 Costin Sr Darryl J Laser etching system and method
KR20200035430A (ko) * 2017-07-27 2020-04-03 로베르트 보쉬 게엠베하 검출 기능 구현 장치 및 상기 장치의 작동 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134066A (en) * 1977-03-24 1979-01-09 International Business Machines Corporation Wafer indexing system using a grid pattern and coding and orientation marks in each grid cell
DE3123031A1 (de) * 1981-06-10 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Verfahren zur kennzeichnung von halbleiterchips und kennzeichenbarer halbleiterchip
US4695698A (en) * 1984-07-10 1987-09-22 Larassay Holding Ag Method of, and apparatus for, generating a predetermined pattern using laser radiation
DE3427611A1 (de) * 1984-07-26 1988-06-09 Bille Josef Laserstrahl-lithograph

Also Published As

Publication number Publication date
EP0262088A1 (de) 1988-03-30
ATE64238T1 (de) 1991-06-15
DE3770559D1 (de) 1991-07-11
EP0262088B1 (de) 1991-06-05
IL83969A (en) 1991-06-30
CH670592A5 (enExample) 1989-06-30
JPS6394622A (ja) 1988-04-25
IL83969A0 (en) 1988-02-29
KR880004559A (ko) 1988-06-04
ZA876229B (en) 1988-03-01
US4809014A (en) 1989-02-28

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Legal Events

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