FR2434002A1 - LASER WELDING METHOD AND APPARATUS - Google Patents

LASER WELDING METHOD AND APPARATUS

Info

Publication number
FR2434002A1
FR2434002A1 FR7919725A FR7919725A FR2434002A1 FR 2434002 A1 FR2434002 A1 FR 2434002A1 FR 7919725 A FR7919725 A FR 7919725A FR 7919725 A FR7919725 A FR 7919725A FR 2434002 A1 FR2434002 A1 FR 2434002A1
Authority
FR
France
Prior art keywords
laser welding
welding method
welds
soldering
weld
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.)
Granted
Application number
FR7919725A
Other languages
French (fr)
Other versions
FR2434002B1 (en
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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of FR2434002A1 publication Critical patent/FR2434002A1/en
Application granted granted Critical
Publication of FR2434002B1 publication Critical patent/FR2434002B1/fr
Granted 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/341—Surface mounted components
    • H05K3/3431—Leadless components
    • H05K3/3442—Leadless components having edge contacts, e.g. leadless chip capacitors, chip carriers
    • 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
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/005—Soldering by means of radiant energy
    • B23K1/0056—Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
    • 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
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0619—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams with spots located on opposed surfaces of the workpiece
    • 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
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0652—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising prisms
    • 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
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/42—Printed circuits
    • 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
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10621—Components characterised by their electrical contacts
    • H05K2201/10636—Leadless chip, e.g. chip capacitor or resistor
    • 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
    • H05K2203/107—Using laser light
    • 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
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3494—Heating methods for reflowing of solder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Laser Beam Processing (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

L'invention concerne un procédé et un appareil de soudage par laser. Des dispositifs optiques focalisent simultanément des faisceaux laser cohérents sur des soudures aux extrémités opposées d'un composant L'énergie ainsi produite fait refondre la soudure, et les deux soudures sont formées simultanément au refroidissement. L'invention s'applique notamment au soudage des condensateurs plats sur des plaques de circuits imprimés.A method and apparatus for laser welding is disclosed. Optical devices simultaneously focus coherent laser beams on welds at opposite ends of a component. The energy thus produced causes the weld to melt, and both welds are formed simultaneously on cooling. The invention applies in particular to the soldering of flat capacitors on printed circuit boards.

FR7919725A 1978-08-24 1979-07-31 LASER WELDING METHOD AND APPARATUS Granted FR2434002A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93667178A 1978-08-24 1978-08-24

Publications (2)

Publication Number Publication Date
FR2434002A1 true FR2434002A1 (en) 1980-03-21
FR2434002B1 FR2434002B1 (en) 1983-08-12

Family

ID=25468940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7919725A Granted FR2434002A1 (en) 1978-08-24 1979-07-31 LASER WELDING METHOD AND APPARATUS

Country Status (7)

Country Link
JP (1) JPS5530895A (en)
CA (1) CA1123920A (en)
DE (1) DE2934407A1 (en)
FR (1) FR2434002A1 (en)
GB (1) GB2038220B (en)
IT (1) IT1120489B (en)
NL (1) NL7906042A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223066A1 (en) * 1985-11-11 1987-05-27 Siemens Nixdorf Informationssysteme Aktiengesellschaft Device for soldering electronic components on a printed-circuit board

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085278A1 (en) * 1982-01-28 1983-08-10 Battelle Development Corporation Split beam method of altering material properties
JPH0347730Y2 (en) * 1985-04-18 1991-10-11
JPH0677811B2 (en) * 1986-01-20 1994-10-05 株式会社ハイベツク Automatic soldering equipment
JPH0783036B2 (en) * 1987-12-11 1995-09-06 三菱電機株式会社 Carrier tape
JPH02138066U (en) * 1989-04-17 1990-11-19
US5309545A (en) * 1990-08-27 1994-05-03 Sierra Research And Technology, Inc. Combined radiative and convective rework system
US5060288A (en) * 1990-08-27 1991-10-22 Sierra Research And Technology, Inc. Infrared heater array for IC soldering
DE19833368C1 (en) * 1998-07-24 2000-02-17 Schott Glas Method and device for processing components made of brittle materials
JP2005347415A (en) * 2004-06-01 2005-12-15 Miyachi Technos Corp Electric part mounting method
WO2006037566A1 (en) 2004-10-06 2006-04-13 Hentze-Lissotschenko Patentverwaltungs Gmbh & Co. Kg Laser arrangement
WO2006037370A1 (en) * 2004-10-06 2006-04-13 Hentze-Lissotschenko Patentverwaltungs Gmbh & Co. Kg Laser array
CN110948079B (en) * 2019-12-24 2023-10-10 武汉嘉铭激光股份有限公司 Double-laser tin soldering combined device and welding method thereof
CN114682948B (en) * 2022-03-04 2023-10-31 广东风华高新科技股份有限公司 Method, device and system for testing weldability of chip component

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524046A (en) * 1968-04-26 1970-08-11 Aluminum Co Of America Apparatus and method for piercing holes in elastomeric articles
US4083629A (en) * 1976-11-29 1978-04-11 Gte Laboratories Incorporated Beam splitting system for a welding laser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1565832A1 (en) * 1966-09-06 1970-02-12 Siemens Ag Optical arrangement for laser beams
GB1371624A (en) * 1971-03-26 1974-10-23 Atomic Energy Authority Uk Optical processing of materials
JPS5539434B2 (en) * 1972-08-25 1980-10-11
JPS5310937B2 (en) * 1973-05-18 1978-04-18
JPS5148917B2 (en) * 1973-10-26 1976-12-23
GB1510899A (en) * 1975-11-21 1978-05-17 Boc Ltd Laser machining
JPS5297696U (en) * 1976-01-21 1977-07-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524046A (en) * 1968-04-26 1970-08-11 Aluminum Co Of America Apparatus and method for piercing holes in elastomeric articles
US4083629A (en) * 1976-11-29 1978-04-11 Gte Laboratories Incorporated Beam splitting system for a welding laser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0223066A1 (en) * 1985-11-11 1987-05-27 Siemens Nixdorf Informationssysteme Aktiengesellschaft Device for soldering electronic components on a printed-circuit board

Also Published As

Publication number Publication date
IT7949988A0 (en) 1979-08-07
GB2038220B (en) 1982-10-20
FR2434002B1 (en) 1983-08-12
NL7906042A (en) 1980-02-26
IT1120489B (en) 1986-03-26
JPS6349594B2 (en) 1988-10-05
JPS5530895A (en) 1980-03-04
GB2038220A (en) 1980-07-23
CA1123920A (en) 1982-05-18
DE2934407A1 (en) 1980-03-06

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Legal Events

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