DE2008588C2 - Solder joints - by applying components of eutectic alloys eg tin-indium on metal surfaces - Google Patents
Solder joints - by applying components of eutectic alloys eg tin-indium on metal surfacesInfo
- Publication number
- DE2008588C2 DE2008588C2 DE19702008588 DE2008588A DE2008588C2 DE 2008588 C2 DE2008588 C2 DE 2008588C2 DE 19702008588 DE19702008588 DE 19702008588 DE 2008588 A DE2008588 A DE 2008588A DE 2008588 C2 DE2008588 C2 DE 2008588C2
- Authority
- DE
- Germany
- Prior art keywords
- alloy
- solder
- components
- metal surfaces
- tin
- 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
Links
Classifications
-
- 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
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
-
- 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
- B23K1/012—Soldering with the use of hot gas
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/001—Interlayers, transition pieces for metallurgical bonding of workpieces
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
- B23K35/262—Sn as the principal constituent
-
- 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
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
- H05K3/363—Assembling flexible printed circuits with other printed circuits by soldering
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/08—Treatments involving gases
- H05K2203/087—Using a reactive gas
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1581—Treating the backside of the PCB, e.g. for heating during soldering or providing a liquid coating on the backside
-
- 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
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3463—Solder compositions in relation to features of the printed circuit board or the mounting process
-
- 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
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3473—Plating of solder
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
3 43 4
gelegt werden, wobei die Legierungskomponenten Vorteilhaft kann auch die Verwendung eines Lamechanisch zusammengepreßt werden, und daß die sers als Wärmequelle sein. Durch die stärkere Kontur den Lot- und Legierungsprozeß erforderliche zentration der Wärme auf einen sehr kleinen Bereich Wärme von der Rückseite der dünneren Trägerfolie kann dabei die thermische Beanspruchung der Kunsther durch die Folie hindurch zugeführt wird. 5 stoffolien weiter verringert werden, oder es könnenare placed, the alloy components can also be advantageous to use a lamechanical are compressed, and that the sers be used as a heat source. Because of the stronger contour the soldering and alloying process required the concentration of heat in a very small area Heat from the back of the thinner carrier film can reduce the thermal stress on the plastic is fed through the film. 5 fabric films can be further reduced, or it can
Damit ergeben sich die Vorteile, daß das Auf- höher schmelzende Lote eingesetzt weiden,
bringen des Lotes vereinfacht wird, daß die Lot- Vorzugsweise werden die Lotschichten aus galmenge
auf den Kontaktflächen genauer bemessen vanischen Bädern hoher Stromausbeute und guter
werden kann, daß zwischen Lot und zu verbindenden Streufähigkeit abgeschieden. Die Streufähigkeit ist
Metallflächen keir.c störenden Oxidschichten sind, io mit Rücksicht auf die Geometrie der zu beschichdaß
die zu verbindenden Kontaktflächen leicht tenden Teile erforderlich. Selbstverständlich muß der
justierbar sind, daß das Zuführen der für die Lötung Elektrolyt stabil sein, so daß über längere Zeit konbenötigten
Wärme einfach ist und daß die Gefahr stante Abscheidungsbedingungen gewährleistet sind,
einer mechanischen oder thermischen Schädigung Entsprechende Zinn-Bäder sind handelsüblich und
der Folie sehr gering ist. 15 brauchen daher nicht näher beschrieben zu werden;This results in the advantages that the higher melting solders are used,
Bringing the solder is simplified so that the solder is preferably the solder layers from gal volume on the contact surfaces more precisely dimensioned vanic baths of high current yield and good that can be deposited between the solder and the throwing power to be connected. The throwing power is metal surfaces. No interfering oxide layers are required, taking into account the geometry of the parts to be coated and the contact surfaces to be connected. Of course, it must be adjustable so that the supply of the electrolyte for soldering is stable, so that heat required over a long period of time is simple and that the risk of constant deposition conditions is ensured, mechanical or thermal damage. Corresponding tin baths are commercially available and the foil is very good is low. 15 therefore do not need to be described in more detail;
Vorzugsweise werden die Legierungskomponenten die Stromdichte sollte zu 2 A/dm2 gewählt werden,Preferably the alloy components the current density should be chosen to 2 A / dm 2,
des Lotes galvanisch abgeschieden, weil dieses Be- Zur Abscheidung von Tndium hat sich das fol-of the solder is galvanically deposited because this
schichtungsverfahren eine genaue Kontrolle der gende, in der Literatur beschriebene Bad bewährt:layering process a precise control of the area, described in the literature, has proven its worth:
Schichtdicke und eine weitgehende Schonung der T .. ,. inc~nLayer thickness and extensive protection of the T ..,. inc ~ n
dünnen Kunststoffolien erlaubt. 20 Ind.umsulfamat 105 gflthin plastic films allowed. 20 ind.um sulfamate 105 gfl
Sollten die galvanisch aufgetragenen Lotkompo- Natriumsulfamat 150 g/lShould the galvanically applied solder compo- sodium sulfamate 150 g / l
nenten (z. B. auf Grund längerer Lagerung) ober- Sulfaminsäurenents (e.g. due to prolonged storage) above sulfamic acid
flächlich mit einer Oxidschicht überzogen sein, so (Amidosulfonsäure) 26 g/lbe surface coated with an oxide layer, so (sulfamic acid) 26 g / l
empfiehlt sich die Verwendung von Flußmitteln beim NaCl 45 g/lThe use of flux is recommended for NaCl 45 g / l
Löten. Es ist zwar möglich, auch ohne Flußmittel 25 Dextrose 8 r/1Soldering. It is possible to use 25 dextrose 8 r / 1 without flux
eine einwandfreie Lötung zu erhalten, jedoch muß _ ..., ''' , <- ,,to get a perfect soldering, however _ ..., '' ' , <- ,,
dann die Temperatur an der Lötstelle erhöht werden. Triethanolamin 3,3»g/lthen the temperature at the solder joint can be increased. Triethanolamine 3.3 »g / l
Zur Vermeidung von Flußmitteln kann es auch pH-Wert unter 3,5To avoid flux, it can also have a pH below 3.5
vorteilhaft sein, auf den zu verbindenden Metall- kathodische Stromdichte 2,0 A/dm2 be advantageous to the metal to be connected cathodic current density 2.0 A / dm 2
flächen nicht nur je eine der Lotko.nponenten ab- 30 kathodische Stromausbeute 90 %>surface not only one of the solder components each 30 cathodic current yield 90%>
zuscheiden, sondern beide Komponenten auf jedeseparate, but both components on each
Metallfläche. Die Beschichtung kann je nach Zweck- An Hand der Zeichnung soll die Erfindung näherMetal surface. Depending on the purpose, the coating can be used to explain the invention in greater detail
mäßigkeit entweder durch Niederschlagen der eutek- erläutert werden.moderation can be explained either by knocking down the eutek-.
tisch zusammengesetzten Legierung oder durch Ab- F i g. 1 zeigt in etwa maßstäblichen Größenverhältscheidung der Einzelkomponenten erfolgen, wobei 35 nissen eine etwa 6 μηι starke Folie 1 aus Polyäthylendie Reinenfolge wieder so zu wählen ist, daß beim terephthalat mit einer etwa 4,5 μΐη starken Kupferspäteren Aufeinanderlegen der zu verbindenden auflage 2. Die Kupferschicht 2 ist oberflächlich mit Teile verschiedene Lotkomponenten zusammen- einer 0,5 μΐη starken Goldschicht 3 beiegt, auf der treffen. Bei dieser Verfahrensvariante beginnt der als erste Lotkomponente eine 3 μπι starke Indium-Aufschmelzvorgang nicht an der Berührungsfläche 40 schicht 4 galvanisch abgeschieden wurde. Der Gegender beiden Partner, sondern im Innern der Lot- kontakt befindet sich auf einer etwa 35 μΐη starken auflage. Beim Übergang in den flüssigen Aggregat- Polyimidfolie 8, auf die mit Hilfe eines Klebers 7 zustand reißen die an der Oberfläche befindlichen eine 35 μΐη starke Kupferschicht 6 aufkaschiert Oxidschichten auf, so daß der Lötprozeß — das Ver- wurde. Die Kupferschicht 6 ist galvanisch mit der binden beider Teile durch flüssiges Metall — er- 45 zweiten Legierungskomponente, einer 4 μηι starken leichtert wird. Zinnschicht 5, beschichtet worden. Die Lotschichtentable composed alloy or by Ab- F i g. 1 shows a scaled division of the proportions the individual components take place, with 35 nits an approximately 6 μm thick film 1 made of polyethylene The sequence is again to be chosen so that in the case of terephthalate with an approximately 4.5 μm thick copper later Laying the support 2 to be connected on top of one another. The copper layer 2 is superficial with Share different solder components together - a 0.5 μm thick gold layer 3, on which meeting. In this variant of the method, the first solder component, a 3 μm thick indium melting process, begins layer 4 was not electrodeposited on the contact surface 40. The area both partners, but inside the solder contact is about 35 μm thick edition. At the transition into the liquid aggregate polyimide film 8, on which with the help of an adhesive 7 state, the 35 μm thick copper layer 6 on the surface tears Oxide layers on, so that the soldering process - that was. The copper layer 6 is galvanic with the bind both parts by liquid metal - he 45 second alloy component, a 4 μm thick is made easier. Tin layer 5, has been coated. The solder layers
Vo-zugsweise werden niedrigschmelzende, eutek- 4, 5 bind so dünn ausgebildet, um ein Verlaufen der
tische Legierungen als Lot verwendet, z. B. ein Zinn- flüssigen Lotscliicht während der Erhitzung und die
Indium-Eutektikiim. Dieses Eulektikum schmilzt bei Kurzschlußbildung zwischen benachbarten Leiterin0
C, während die unlegierten Metalle bei 155° C 50 bahnen zu verhindern. Die Wärme w:rd von dem
(In) bzw. 232° C (Sn) flüssig werden. Es sind aber aus der Düse 10 heraustretenden heißen Luftstrahl 9
auch andere Legierungen möglich, z. B. Zinn—Wis- geliefert und durch die Folie 1 hindurch zur eigentmut
oder Zinn—Kadmium—Wismut; die Erfindung liehen Lötstelle bei den Schichten 4 und 5 geleitet,
ist somit keineswegs auf Zwei-Stoff-Legierungen be- F i g. 2 zeigt die Variante des erfindungsgemäßen
schränkt. 55 Verfahrens, bei der auf jede der zu verbindendenPreferably, low-melting, eutek- 4, 5 bind are made so thin that the table alloys are used as solder, z. B. a tin-liquid soldering light during heating and the indium eutectics. This eulectic melts when a short circuit is formed between neighboring conductors in 0 C, while the unalloyed metals at 155 ° C prevent 50 lanes. The heat w : rd from the (In) or 232 ° C (Sn) become liquid. But there are hot air jet 9 emerging from the nozzle 10 also other alloys possible, for. B. Tin-Wis- delivered and through the foil 1 to Eigenmut or Tin-Cadmium-Bismuth; the invention borrowed solder joint at layers 4 and 5,
is therefore by no means dependent on two-component alloys. 2 shows the variant of the restricts according to the invention. 55 Procedure in which on each of the to be connected
Vorzugsweise entspricht die Stärke der einzelnen Matallflächen 2, 3 bzw. 6 beide Lotkomponenten 4, 5The thickness of the individual metal surfaces 2, 3 or 6 preferably corresponds to both solder components 4, 5
Legierungsschichten dem gewünschten Legierungs- nacheinander als homogene Schichten aufgetragenAlloy layers applied to the desired alloy one after the other as homogeneous layers
verhältnis. Damit wird erreicht, daß das Lot den sind. Das getrennte Abscheiden der Legierungs-ratio. This ensures that the solder is the. The separate deposition of the alloy
vorteilhaften niedrigen Schmelzpunkt besitzt. komponenten ist häufig einfacher als das gleich-has an advantageous low melting point. components is often easier than the same-
Die Zuführung der für den Lot- und Legierungs- 60 zeitige.The supply of the for the solder and alloy 60 early.
Vorgang benötigten Wärme erfolgt vorteilhaft mit Das als Beispiel erwähnte Indium-Zinn-Eutek-Hilfe eines heißen Gasstrahles, z.B. mit erhitzter tikum schmilzt bei 117° C. Der Luftstrahl, der auf Luft. Damit ergeben sich die Vorteile, daß die zu die Folie 1 auftrifft, muß dann eine Temperatur von verbindenden Teile durch den Luftdruck zusammen- wenigstens 140° C aufweisen; für einwandfreie Vergepreßt werden, daß die Regulierung der Lot- 65 bindungen sind 160 bis 170° C erforderlich, bei einer temperatur leicht ist und daß das Verfahren sauber, Einwirkungszeit von etwa 4 Sekunden. Bei dickeren schnell und ohne besonderen Aufwand durchgeführt Folien muß die Lufttemperatur selbstverständlich werden kann. erhöht werden, weil dann die Wärmeableitung größerThe heat required for the process is advantageously carried out using the indium-tin-Eutek aid mentioned as an example of a hot gas jet, e.g. with a heated tikum, melts at 117 ° C. The air jet that opens Air. This results in the advantages that the film 1 strikes, then a temperature of connecting parts together by the air pressure at least 140 ° C; for perfect grouting that the regulation of the solder bonds are required at a temperature of 160 to 170 ° C temperature is easy and that the process is clean, exposure time of about 4 seconds. With thicker ones The air temperature must of course be carried out quickly and without any special effort can be. be increased, because then the heat dissipation is greater
ist. Bei langer gelagerten Schichten wird ein Flußmittel beim Löten benötigt, es sei denn, die Kunststoffolien vertragen eine Erhöhung der Temperatur, im vorliegenden Fall auf 170 bis 180° C, bei besonders alten Schichten bis auf 200° C.is. If the layers are stored for a long time, a flux is used required for soldering, unless the plastic foils can withstand an increase in temperature, in the present case to 170 to 180 ° C, with particularly old layers up to 200 ° C.
Bei anderen Lotlegierungen liegen die Verhältnisse entsprechend.With other solder alloys, the proportions are accordingly.
Ausgedehnte Versuche haben bestätigt, daß die nach dem erfindungsgemäßen Verfahren hergestellten Lötungen ausgezeichnete Festigkeiten ergeben, die auch bei extremen Beanspruchungen, wie längere Einwirkung von Wüsten- oder Tropenklima, die Haftfestigkeit der Leiterbahnen auf der Polyäthylenterephthalatfolie übertreffen.Extensive tests have confirmed that the manufactured by the process according to the invention Soldering results in excellent strength, even under extreme loads, such as longer Effects of desert or tropical climates, the adhesive strength of the conductor tracks on the polyethylene terephthalate film surpass.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
$■■$ ■■
Claims (14)
wird, daß auf die zu verbindenden Metallflächen14. The method according to claim 1, characterized in that any parts, even if they are electronic, in which the two to be connected are not on temperature-sensitive foils metals with the help of a Intermediate metal layers are located as a carrier, are soldered to one another, are marked by being soldered in that they feature the individual components, that the soldered connection is coated with the help of a eutectic alloy and one of at least two components (4, 5) when heated first or only at the points existing eutectic solder melted mutual contact,
is that on the metal surfaces to be connected
kennzeichnet, daß als Lot eine Zinn-Kadmium- Zur rationellen Herstellung vieler Lötverbindungen Wismut-Legierung verwendet wird, wobei auf die werden nach dem Stand der Technik die zu verbineine der zu verbindenden Metallflächen wenig- de.iden, meist galvanisch vorverzinnten Teile (Drähte stens die Legierungskomponenten Zinn und Kad- bzw. Leiterbahnen) zunächst mechanisch nr/;inander mium aufgetragen werden. 50 in Kontakt gebracht und dann in flüssiges Lot eutek-7. The method according to claim 4, characterized in that metals only melt at 327 or 232 ° C,
indicates that a tin-cadmium bismuth alloy is used as the solder, whereby, according to the state of the art, the metal surfaces to be connected are few, mostly galvanically pre-tinned parts (wires at least The alloy components tin and cad or conductor tracks) are first applied mechanically in one another. 50 brought into contact and then in liquid solder eutek-
kennzeichnet, daß das Zusammenpressen der 60 Die Lösung dieser Aufgabe ist erfindungsgemäß Legierungskomponenten durch einen Gasstrahl dadurch gekennzeichnet, daß die Lötverbindung mit erfolgt. Hilfe eines aus wenigstens zwei Komponenten be10. The method according to claim 1, thereby allowing rapid, cheap and safe operation,
The solution to this object is, according to the invention, alloy components by means of a gas jet, characterized in that the soldered connection is also made. Help one of at least two components be
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702008588 DE2008588C2 (en) | 1970-02-24 | 1970-02-24 | Solder joints - by applying components of eutectic alloys eg tin-indium on metal surfaces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702008588 DE2008588C2 (en) | 1970-02-24 | 1970-02-24 | Solder joints - by applying components of eutectic alloys eg tin-indium on metal surfaces |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2008588B1 DE2008588B1 (en) | 1972-03-09 |
DE2008588C2 true DE2008588C2 (en) | 1972-10-12 |
Family
ID=5763244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702008588 Expired DE2008588C2 (en) | 1970-02-24 | 1970-02-24 | Solder joints - by applying components of eutectic alloys eg tin-indium on metal surfaces |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2008588C2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2818870B1 (en) * | 2000-12-21 | 2005-08-26 | Thomson Csf | METHOD FOR MAKING INTERCONNECTION IN A MULTILAYER PRINTED CIRCUIT |
AT10735U1 (en) * | 2008-05-21 | 2009-09-15 | Austria Tech & System Tech | METHOD FOR PRODUCING A PCB, AND USE AND PCB |
-
1970
- 1970-02-24 DE DE19702008588 patent/DE2008588C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2008588B1 (en) | 1972-03-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10208635B4 (en) | Diffusion soldering station, composite of two parts connected via a diffusion soldering station and method for producing the diffusion soldering station | |
EP0123702B1 (en) | Method of joining metallic work pieces | |
DE69105793T2 (en) | Solder-polymer composite paste and method of using it. | |
DE69115996T2 (en) | Binding through a temporary liquid phase made of Au-Sn in high-performance laminates | |
DE69002755T2 (en) | METHOD FOR PRODUCING A SOLDERED OBJECT. | |
DE3446780A1 (en) | METHOD AND JOINING MATERIAL FOR METALLICALLY CONNECTING COMPONENTS | |
DE102015108668B4 (en) | Method for producing a composite material | |
EP0301533A2 (en) | Electric fuse and method for its manufacture | |
DE102008046724B4 (en) | Semiconductor device | |
DE68911649T2 (en) | Joining metallic surfaces. | |
DE10194457B4 (en) | System and method for mounting electronic components on flexible substrates | |
DE102010013610B4 (en) | Method for integrally joining electronic components or contact elements and substrates | |
DE102014105000A1 (en) | Method for producing and assembling a circuit carrier | |
DE102008011265B4 (en) | Method for producing a substrate for bonding devices with a solder layer | |
DE2008588C2 (en) | Solder joints - by applying components of eutectic alloys eg tin-indium on metal surfaces | |
DE102013204357A1 (en) | Method, solar cell and wiring foil for the production of a solar module | |
DE3827318A1 (en) | GASKET BETWEEN CERAMIC OBJECTS OR BETWEEN CERAMIC AND METALLIC OBJECTS | |
AT512041B1 (en) | Method for producing a metallized substrate | |
DE10103084B4 (en) | Semiconductor module and method for its production | |
DE10252577B4 (en) | Method for producing a solder joint by capillary solder flow | |
DE10240355B4 (en) | Composite component and method for producing a composite component | |
WO2002095816A1 (en) | Method for contacting an electrical component with a substrate comprising a conducting structure | |
EP2144284A1 (en) | Method for manufacturing a connecting contact on a semiconductor device for power electronics and electronic component with a connecting contact on a semiconductor device manufactured in this way | |
WO1996030966A1 (en) | System and process for producing electrically conductive connecting structures and a process for producing circuits and printed circuits | |
WO2003097287A1 (en) | Method for joining a part to be joined to a counterpart using an alloy containing silver and copper constituents |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |