DE2343235A1 - Printed cct boards - enables mounting and connecting of subminiature components with soldering surfaces on one side - Google Patents
Printed cct boards - enables mounting and connecting of subminiature components with soldering surfaces on one sideInfo
- Publication number
- DE2343235A1 DE2343235A1 DE19732343235 DE2343235A DE2343235A1 DE 2343235 A1 DE2343235 A1 DE 2343235A1 DE 19732343235 DE19732343235 DE 19732343235 DE 2343235 A DE2343235 A DE 2343235A DE 2343235 A1 DE2343235 A1 DE 2343235A1
- Authority
- DE
- Germany
- Prior art keywords
- printed circuit
- components
- radiation
- contact surfaces
- component
- 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- Withdrawn
Links
Classifications
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- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/005—Soldering by means of radiant energy
-
- 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
- B23K1/0053—Soldering by means of radiant energy soldering by means of I.R.
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
- B29C65/1409—Visible light radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
- B29C65/1412—Infrared [IR] radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1687—Laser beams making use of light guides
-
- 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
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- 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
- H05K2201/01—Dielectrics
- H05K2201/0104—Properties and characteristics in general
- H05K2201/0108—Transparent
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
Philips PatentVerwaltung GmbH., Hamburg 1, Steindamm 94Philips PatentVerwaltung GmbH., Hamburg 1, Steindamm 94
Verfahren zur Befestigung und Kontaktierung von elektrischen BauelementenMethod for fastening and contacting electrical components
Die Erfindung betrifft ein Verfahren zur Befestigung und Kontaktierung von elektrischen Bauelementen, vorzugsweise Subminiatur-Bauelementen, die mit auf einer Seite des Bauelements liegenden lötbaren Kontaktflächen versehen sind, auf gedruckten Schaltungen.The invention relates to a method for fastening and contacting electrical components, preferably Subminiature components, which are provided with solderable contact surfaces lying on one side of the component, on printed circuits.
Zur Befestigung und Kontaktierung von elektrischen Bauelementen auf gedruckten Schaltungen ist es bekannt, in die Printplatte, d.h. die Trägerplatte mit den aufgebrachten Leitungsbahnen, Löcher einzubringen, in die die Anschlußdrahte der zu befestigenden und kontaktierenden Bauelemente eingesteckt werden. Die Verlötung erfolgt dann entweder mit einem Lötkolben unter Beigabe von Lötzinn oder in einem Schwallötbad.For fastening and contacting electrical components on printed circuits, it is known in the PCB, i.e. the carrier plate with the applied conductor tracks, to make holes in which the connecting wires the components to be fastened and contacted are inserted. The soldering takes place either with a soldering iron with the addition of tin solder or in a wave solder bath.
PHD 73-146 ' - 2 -PHD 73-146 '- 2 -
(PTO 60/112) 509813/0A40(PTO 60/112) 509813 / 0A40
Bei sehr kleinen Bauelementen, sogenannten Subminiatur-Bauelementen, und entsprechenden gedruckten Schaltungen, die auch als "Miniprints" "bezeichnet werden, ist das genannte bekannte Verfahren nicht anwendbar. Es ist nämlich in der Massenfertigung nicht mehr möglich, wirtschaftlich Löcher in die Printplatten einzubringen, die einen Durchmesser haben, der kleiner als etwa 0,8 mm ist. Da aber die Anschlußdrähte der Bauelemente mit Rücksicht auf die Güte der Lötverbindung nur höchstens 0,15 mm kleiner sein dürfen als die löcher in den Printplatten, ist die Befestigung von kleinen Bauelementen mit entsprechend dünnen Anschlußdrähten nicht möglich.For very small components, so-called subminiature components, and corresponding printed circuits, which are also referred to as "miniprints" ", is the aforementioned known procedures not applicable. This is because it is no longer possible in mass production, economically To make holes in the printed circuit boards that have a diameter that is smaller than about 0.8 mm. But since the The connecting wires of the components may only be a maximum of 0.15 mm smaller, taking into account the quality of the soldered connection than the holes in the printed circuit boards, the attachment of small components with correspondingly thin connecting wires not possible.
Es sind bereits Subminiatur-Bauelemente bekannt, die mit auf einer Seite des Bauelements liegenden lötbaren Kontaktflächen versehen sind und die auf sogenannte Schicht schaltungen (Dick- oder Dünnschichtschaltungen) aufgebracht werden. There are already known subminiature components with on one side of the component lying solderable contact surfaces are provided and the so-called layer circuits (Thick or thin-film circuits) are applied.
Die Trägerkörper von Schicht schaltungen bestehen aus Materialien wie AI2O3 oder Glas, die weitgehend wärmebeständig sind, so daß sich die Bauelemente z.B. durch Ofenlötung auf diesen Schichtschaltungen befestigen lassen, soweit die Bauelemente selbst hinreichend wärmefest sind.The carrier bodies of layered circuits are made of materials like AI2O3 or glass, which are largely heat-resistant so that the components can be soldered to one another, e.g. by furnace soldering let these layer circuits attach, as far as the components are themselves sufficiently heat-resistant.
Die Befestigung von wärme empfindlichen Bauelementen wie z.B. !Dantal-, Elektrolyt- oder Folienschichtkondensatoren und die Befestigung von Bauelementen auf üblichen gedruckten Schaltungen, bei denen der Trägerkörper normalerweise nicht sehr temperaturbeständig ist, ist mit dem genannten bekannten Verfahren nicht möglich.The fastening of heat-sensitive components such as dantalum, electrolyte or film-layer capacitors and the fastening of components on conventional printed circuits, in which the carrier body is normally not very temperature-resistant, is not possible with the known method mentioned.
Der Erfindung liegt die Aufgabe zugrunde, diesen Nachteil zu beseitigen und ein Verfahren anzugeben, das es erlaubt, "beliebige elektrische Bauelemente, die mit auf einer Seite des Bauelements liegenden lötbaren Kontaktflächen versehen sind, einfach und sicher auf gedruckten Schaltungen zu befestigen und zu kontaktieren. The invention is based on the object of eliminating this disadvantage and specifying a method that allows "any electrical components that are provided with solderable contact surfaces on one side of the component to be easily and securely attached to printed circuits and contacted.
- 3 -509813/0440- 3 -509813/0440
Diese Aufgabe wird erfindungsgemäß durch die im Kennzeichen des Hauptanspruchs angegebene Ausbildung des Verfahrens gelöst.According to the invention, this object is achieved by the characteristics of the main claim specified training of the method solved.
Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Further refinements of the invention emerge from the subclaims.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß auf besondere Bohrungen in den gedruckten Schaltungen verzichtet werden kann und elektrische Bauelemente mit auf einer Seite des Bauelements liegenden lötbaren Kontaktflächen (sogenannte chip-Bauelemente), ohne Warmeschädigungen befürchten zu müssen, auch auf normalen gedruckten Schaltungen befestigt und kontaktiert werden können.The advantages achieved by the invention are in particular that on special holes in the printed Circuits can be dispensed with and electrical components can be soldered with lying on one side of the component Contact surfaces (so-called chip components) without having to fear heat damage, even on normal ones printed circuits can be attached and contacted.
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigen:Two exemplary embodiments of the invention are shown in the drawing and are described in more detail below. Show it:
Pig. 1 ein erstes Ausführungsbeispiel, bei dem alsPig. 1 shows a first embodiment in which as
Strahlung von einer Glühlampe ausgehendes sichtbares Licht verwendet wird undRadiation from an incandescent lamp is used and visible light
Pig. 2 ein zweites Ausführungsbeispiel, bei dem alsPig. 2 shows a second embodiment in which as
Strahlung Laserlicht verwendet wird.Radiation laser light is used.
Die Pig. 1 zeigt ein elektrisches Bauelement 1, das auf einer Seite (hier der Unterseite) mit lötbaren Kontaktflächen 10 versehen ist. Diese lötbaren Kontaktflächen 10 können aus . Anhäufungen von Lotmaterial (sogenannten solderbumps) bestehen. The Pig. 1 shows an electrical component 1 that has solderable contact surfaces on one side (here the underside) 10 is provided. These solderable contact surfaces 10 can be made from. There are accumulations of solder material (so-called solder bumps).
Wie die Pigur zeigt, liegt das Bauelement 1 mit seinen Kontaktflächen auf Kontaktbahnen 20 einer gedruckten Schaltung 2, an der es befestigt und mit der es kontaktiert werden soll, auf. Die gedruckte Schaltung 2 besteht aus einem Trägerkörper 21 und den darauf aufgebrachten Leiterbahnen 20.As the Pigur shows, the component 1 lies with its contact surfaces on contact tracks 20 of a printed circuit 2 to which it is to be attached and with which it is to be contacted, on. The printed circuit 2 consists of a carrier body 21 and the conductor tracks 20 applied thereon.
_ 4 -509813/0440_ 4 -509813/0440
Der Trägerkörper 21 der gedruckten Schaltung 2 besteht aus einem Material, das für Wärmestrahlung gut durchlässig ist. Solche Materialien sind z.B. Polyester mit Glasfaserfüllstoffen, wobei der Anteil an Füllstoff höher gewählt werden kann als bei den normalerweise verwendeten Trägerkörpern für gedruckte Schaltungen, da in ihn keine Löcher mehr eingestanzt zu werden brauchen. Andere geeignete Materialien sind z.B. Polyamid (Kapton) oder Polytetrafluoräthylen (Teflon) .The carrier body 21 of the printed circuit 2 consists of a material that is well permeable to thermal radiation. Such materials are e.g. polyester with glass fiber fillers, the proportion of filler being selected to be higher can than the normally used carrier bodies for printed circuits, since there are no more holes in it need to be punched. Other suitable materials are e.g. polyamide (Kapton) or polytetrafluoroethylene (Teflon) .
Die gedruckte Schaltung 2 mit dem darauf liegenden Bauelement 1 liegt auf einem Tisch 5 auf, der mit einer öffnung 51 versehen ist, durch die Strahlung zugeführt wird, die in der gestrichelt angedeuteten Ebene 3, in der sich die Kontaktflächen des Bauelements mit den Leiterbahnen der ge-The printed circuit 2 with the component 1 lying on it rests on a table 5 which has an opening 51 is provided, through which radiation is supplied, which is in the plane 3 indicated by dashed lines, in which the contact surfaces of the component with the conductor tracks of the
15' druckten Schaltung berühren, eine solche Wärme erzeugt, daß das Bauelement mit der gedruckten Schaltung verlötet wird.15 'touch printed circuit, generates such heat that the component is soldered to the printed circuit.
Sie Strahlung geht von einer Glühlampe 4, die z.B. eine Halogenlampe sein kann, aus, die sich im Brennpunkt eines Ellipsenspiegels (oder eines Parabolspiegels) mit zusätz-Iieher Optik 41 befindet. In der Öffnung 51 des Tisches 5 ist eine Blende 45 angeordnet, mit der die Strahlungsmenge in der Berührungsebene 3 eingestellt werden kann.The radiation emanates from an incandescent lamp 4, which can e.g. be a halogen lamp, which is in the focal point of a Elliptical mirror (or a parabolic mirror) with additional Optic 41 is located. In the opening 51 of the table 5, a diaphragm 45 is arranged with which the amount of radiation can be set in touch level 3.
Wie die Pig. 2, in der das Bauelement 1 und die gedruckte Schaltung 2 dem in fig. 1 Dargestellten entsprechen, zeigt, kann die Glühlampe 4 und der Spiegel 41 durch einen Laserstrahl hoher Leistung ersetzt werden, der von einem Laser 40 ausgeht und mit Hilfe einer Mikrooptik 42 so aufgeweitet wird, daß der Brennfleck in der Berührungsebene 3 den gewünschten Durchmesser besitzt. Der Laserstrahl wird dabei durch ein Prisma 43 umgelenkt und mit Hilfe einer in der öffnung 51 des Tisches 5 angeordneten Kondensoroptik 44 so stark konvergent gemacht, daß er mit einem größeren Durchmesser in den Trägerkörper 21 der gedruckten Schaltung 2 eindringt und erst in diesem Material selbst zu einem PIeckLike the Pig. 2, in which the component 1 and the printed circuit 2 correspond to the one shown in fig. 1, shows For example, the incandescent lamp 4 and the mirror 41 can be replaced by a high-power laser beam emitted by a laser 40 goes out and is widened with the help of a micro-optics 42 that the focal point in the contact plane 3 is the desired Diameter. The laser beam is deflected by a prism 43 and with the help of a opening 51 of the table 5 arranged condenser optics 44 made so strongly convergent that it has a larger diameter in the carrier body 21 of the printed circuit 2 penetrates and only in this material itself becomes a piece
- 5 509813/0440 - 5 509813/0440
des gewünschten Durchmessers konvergiert. Dies hat den Vorteil, daß der Trägerkörper 21 durch die geringere Energiedichte weniger erhitzt wird als bei parallelen oder sogar divergenten Strahlen.of the desired diameter converges. This has the advantage that the carrier body 21 by the lower Energy density is heated less than with parallel or even divergent rays.
Um bei der Erhitzung der lötbaren Kontaktflächen das Fließen des Lotmaterials zu erleichtern, tcnEieii- der Tisch 5 und/oder eine das zu befestigende und kontaktierende Bauelement haltende und in die gewünschte Position bringende (nicht dargestellte) Vorrichtung mit einer (ebenfalls nicht dargestellten) Ultraschallquelle verbunden werden. Die zugeführte Ultraschallenergie kann dabei so groß gewählt werden, daß im flüssigen Lotmaterial Kavitation auftritt.In order to facilitate the flow of the solder material when the solderable contact surfaces are heated, tcnEieii- the table 5 and / or one that holds the component to be fastened and contacted and brings it into the desired position (not shown) device can be connected to an (also not shown) ultrasound source. The ultrasonic energy supplied can be selected to be so large that cavitation in the liquid solder material occurs.
Um das zu befestigende und kontaktierende Bauelement gegen eine zu starke Strahlungseinwirkung zu schützen, kann es an seiner Oberfläche zwischen den zu kontaktierenden Flächen mit einem Wärmeschutz versehen sein. Als Wärmeschutz können z.B. eine Verspiegelung oder ein Plättchen aus einem schlecht leitenden Material verwendet werden.In order to protect the component to be fastened and contacted against excessive radiation exposure, it can be provided with heat protection on its surface between the surfaces to be contacted. As thermal protection you can For example, a mirror or a plate made of a poorly conductive material can be used.
Mit dem beschriebenen Verfahren lassen sich Bauelemente in etwa einer Sekunde mit der gedruckten Schaltung verbinden.
Um eine Überlastung der Strahlungsquelle zu vermeiden, kann diese mit einer geeigneten Zeitschaltvorrichtung für die
genannte Zeit eingeschaltet werden. Anschließend wird die Strahlungsquelle voll abgeschaltet, um eine schnelle Abkühlung
zu erreichen und anschließend z.B. nur halb eingeschaltet, um sie dann mit geringer Verzögerungszeit voll einschalten
zu können.
Die Teileinschaltung der Strahlungsquelle reicht, insbesondere wenn diese eine Halogenlampe ist, aus, um die Bauelemente
1 auf dem durchscheinenden Trägermaterial 21 der gedruckten Schaltung ohne zusätzliche Beleuchtung gegenüber '
den Leiterbahnen positionieren zu können.With the method described, components can be connected to the printed circuit in about one second. In order to avoid overloading the radiation source, it can be switched on with a suitable timer device for the specified time. The radiation source is then completely switched off in order to achieve rapid cooling and then only switched on halfway, for example, so that it can then be switched on fully with a short delay time.
The partial activation of the radiation source is sufficient, especially if it is a halogen lamp, to be able to position the components 1 on the translucent carrier material 21 of the printed circuit without additional lighting opposite the conductor tracks.
- 6 509813/0440 - 6 509813/0440
Um möglichst gute Verbindungen zu erhalten und eine Oxidation der Leiterbahnen und der Kontaktflächen während der Wärmezufuhr zu vermeiden, wird das Verfahren zweckmäßigerweise in einer Atmosphäre aus einem diese Erscheinungen verhindernden Schutzgas durchgeführt.To get the best possible connections and an oxidation of the conductor tracks and the contact surfaces during To avoid the supply of heat, the process is expediently carried out in an atmosphere composed of one of these phenomena preventive protective gas carried out.
Um die mit Hilfe der Strahlung zuzuführenden Energiemengen kleinzuhalten, ist es möglich, die gedruckte Schaltung und/oder das an ihr zu befestigende und kontaktierende Bauelement vor der Durchführung des hier beschriebenen Verfahrens vorzuwärmen. Auch die Verwendung von vorerhitztem Schutzgas vor und während der Lötung und gekühltem Schutzgas in der Abkühlphase kann vorteilhaft sein.In order to keep the amounts of energy to be supplied with the aid of the radiation small, it is possible to use the printed circuit and / or the component to be fastened and contacted to it before the implementation described here Process to preheat. Also the use of preheated shielding gas before and during soldering and cooled Protective gas in the cooling phase can be advantageous.
Patentansprüche:Patent claims:
50 9813/044050 9813/0440
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2343235A DE2343235B2 (en) | 1973-08-28 | 1973-08-28 | Method for fastening and contacting electrical subminiature components on printed circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2343235A DE2343235B2 (en) | 1973-08-28 | 1973-08-28 | Method for fastening and contacting electrical subminiature components on printed circuits |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2343235A1 true DE2343235A1 (en) | 1975-03-27 |
DE2343235B2 DE2343235B2 (en) | 1978-09-28 |
Family
ID=5890861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2343235A Withdrawn DE2343235B2 (en) | 1973-08-28 | 1973-08-28 | Method for fastening and contacting electrical subminiature components on printed circuits |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2343235B2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2349150A1 (en) * | 1976-04-23 | 1977-11-18 | Itt | MANUFACTURING OF CONNECTORS FOR OPTICAL FIBERS |
EP0315228A1 (en) * | 1987-11-04 | 1989-05-10 | Peter Gammelin | Soldering apparatus |
DE3808073A1 (en) * | 1988-03-11 | 1989-09-21 | Lothar Himmelreich | INFRARED OVEN FOR MELTING SOLDERING OF ELECTRONIC COMPONENTS ON PCB |
EP0590873A1 (en) * | 1992-10-01 | 1994-04-06 | AT&T Corp. | An arrangement for laser bonding |
EP0743716A2 (en) * | 1995-05-16 | 1996-11-20 | Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte | Electronic component for surface mounting (SMT) |
WO2010089254A1 (en) * | 2009-02-09 | 2010-08-12 | Continental Automotive Gmbh | Electro-optical control or regulation device and method for exchanging control or regulation signals |
WO2010118821A1 (en) | 2009-04-16 | 2010-10-21 | Schott Ag | Method for conductively connecting a component on a transparent substrate |
DE102011087704A1 (en) * | 2011-12-05 | 2013-06-06 | Osram Gmbh | Reflow oven for soldering surface mount device (SMD) component on flexible printed circuit board, has tensioning unit that is provided for tensioning the flexible printed circuit board over solder pad |
CN109648170A (en) * | 2019-01-08 | 2019-04-19 | 常州熠光智能科技有限公司 | A kind of crystal silicon solar batteries piece welding infrared optically focused equipment of water-cooled |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0429338A (en) * | 1990-05-24 | 1992-01-31 | Nippon Mektron Ltd | Method circuit board for mounting ic and its mounting |
-
1973
- 1973-08-28 DE DE2343235A patent/DE2343235B2/en not_active Withdrawn
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2349150A1 (en) * | 1976-04-23 | 1977-11-18 | Itt | MANUFACTURING OF CONNECTORS FOR OPTICAL FIBERS |
US5196667A (en) * | 1987-04-11 | 1993-03-23 | Peter Gammelin | Soldering and desoldering device |
EP0315228A1 (en) * | 1987-11-04 | 1989-05-10 | Peter Gammelin | Soldering apparatus |
DE3808073A1 (en) * | 1988-03-11 | 1989-09-21 | Lothar Himmelreich | INFRARED OVEN FOR MELTING SOLDERING OF ELECTRONIC COMPONENTS ON PCB |
EP0590873A1 (en) * | 1992-10-01 | 1994-04-06 | AT&T Corp. | An arrangement for laser bonding |
EP0743716A3 (en) * | 1995-05-16 | 1998-03-04 | Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte | Electronic component for surface mounting (SMT) |
EP0743716A2 (en) * | 1995-05-16 | 1996-11-20 | Otto Dunkel Gmbh Fabrik Für Elektrotechnische Geräte | Electronic component for surface mounting (SMT) |
US5975920A (en) * | 1995-05-16 | 1999-11-02 | Otto Dunkel Gmbh Fabrik Fur Elektrotechnische Gerate | Electronic component for surface mounting technology |
WO2010089254A1 (en) * | 2009-02-09 | 2010-08-12 | Continental Automotive Gmbh | Electro-optical control or regulation device and method for exchanging control or regulation signals |
WO2010118821A1 (en) | 2009-04-16 | 2010-10-21 | Schott Ag | Method for conductively connecting a component on a transparent substrate |
CN102396298A (en) * | 2009-04-16 | 2012-03-28 | 肖特公开股份有限公司 | Method for conductively connecting a component on a transparent substrate |
US8484837B2 (en) | 2009-04-16 | 2013-07-16 | Schott Ag | Method for conductively connecting a component on a transparent substrate |
DE102011087704A1 (en) * | 2011-12-05 | 2013-06-06 | Osram Gmbh | Reflow oven for soldering surface mount device (SMD) component on flexible printed circuit board, has tensioning unit that is provided for tensioning the flexible printed circuit board over solder pad |
CN109648170A (en) * | 2019-01-08 | 2019-04-19 | 常州熠光智能科技有限公司 | A kind of crystal silicon solar batteries piece welding infrared optically focused equipment of water-cooled |
CN109648170B (en) * | 2019-01-08 | 2020-12-29 | 常州熠光智能科技有限公司 | Water-cooled infrared light-gathering equipment for welding crystalline silicon solar cells |
Also Published As
Publication number | Publication date |
---|---|
DE2343235B2 (en) | 1978-09-28 |
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