DE10331008A1 - Reflow solderable component carrier - Google Patents
Reflow solderable component carrier Download PDFInfo
- Publication number
- DE10331008A1 DE10331008A1 DE10331008A DE10331008A DE10331008A1 DE 10331008 A1 DE10331008 A1 DE 10331008A1 DE 10331008 A DE10331008 A DE 10331008A DE 10331008 A DE10331008 A DE 10331008A DE 10331008 A1 DE10331008 A1 DE 10331008A1
- Authority
- DE
- Germany
- Prior art keywords
- solderable
- solder
- carrier substrate
- area
- areas
- 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- Withdrawn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
-
- 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
- H05K3/3447—Lead-in-hole components
-
- 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
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
- H05K1/116—Lands, clearance holes or other lay-out details concerning the surrounding of a via
-
- 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
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09372—Pads and lands
- H05K2201/09381—Shape of non-curved single flat metallic pad, land or exposed part thereof; Shape of electrode of leadless component
-
- 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
- H05K2201/10651—Component having two leads, e.g. resistor, capacitor
-
- 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
- H05K2203/05—Patterning and lithography; Masks; Details of resist
- H05K2203/0502—Patterning and lithography
- H05K2203/0545—Pattern for applying drops or paste; Applying a pattern made of drops or paste
-
- 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
- H05K3/3485—Applying solder paste, slurry or powder
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Es wird ein reflowlötbarer Bauelementeträger mit einem Trägersubstrat (1) vorgestellt, auf dem Bauelemente mittels Reflowlötens befestigbar sind und auf der Oberfläche des Trägersubstrats dazu um ein vorgegebenes Lotzentrum eine lötbare Fläche (4) mit einer das Lotzentrum umgebenden Grundfläche (4a) ausgebildet ist, wobei auf das Trägersubstrat eine reflowlötfähige Lotsubstanz (3) derart aufgebracht wird, dass sie die lötbare Fläche (4) vollständig abdeckt und Überlappungsbereiche über an die lötbare Fläche angrenzende Bereiche der Oberfläche des Trägersubstrats (1) aufweist (A3 > A4). Die lötbare Fläche (4) weist zumindest eine partielle Verlängerung (4b) auf, welche die Grundfläche (4a) vom Lotzentrum aus in Richtung der Überlappungsbereiche lokal verlängert und so beim Reflowlöten der Lotsubstanz eine Ansammlung des Lots im Lotzentrum sicherstellt.A reflow-solderable component carrier with a carrier substrate (1) is presented on which components can be fastened by means of reflow soldering and a solderable surface (4) with a base surface (4a) surrounding the solder center is formed on the surface of the carrier substrate about a predetermined solder center a reflow-solderable solder substance (3) is applied to the carrier substrate in such a way that it completely covers the solderable surface (4) and has overlapping regions over regions of the surface of the carrier substrate (1) adjoining the solderable surface (A3> A4). The solderable surface (4) has at least one partial extension (4b) which locally extends the base surface (4a) from the center of the solder in the direction of the overlapping regions and thus assures the solder in the solder center during reflow soldering.
Description
Die Erfindung betrifft einen Bauelementeträger gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a component carrier according to the preamble of the claim 1.
Der Bauelementeträger weist ein Trägersubstrat, bspw. ein Leiterplatten- oder Folienträger- oder Keramiksubstrat auf, auf welchem Bauelemente mittels Reflowlötens befestigbar sind. Auf der Oberfläche des Trägersubstrats ist dazu um ein vorgegebenes Lotzentrum eine lötbare Fläche mit einer das Lotzentrum umgebenden Grundfläche ausgebildet, wobei die lötbare Fläche durch eine Metallisierung und/oder Lötstoplack begrenzt wird. Alternativ sind auch Trägersubstrate mit einer organischen Schutzschicht bekannt, wobei diese Schutzschicht über der lötbaren Fläche passiviert ist.Of the component support has a carrier substrate, For example, a printed circuit board or film carrier or ceramic substrate, on which components can be fastened by means of reflow soldering. On the surface of the carrier substrate For this purpose, a solderable surface around a given solder center is one with the solder center surrounding base area formed, with the solderable area is limited by a metallization and / or Lötstoplack. alternative are also carrier substrates with an organic protective layer, this protective layer passivating over the solderable surface is.
Auf der lötbaren Fläche wird eine Lotsubstanz aufgebracht, nachfolgend das Bauelement aufgesetzt und die Lotsubstanz danach reflowgelötet.On the solderable area If a solder substance is applied, the component is subsequently attached and the solder substance is reflow soldered afterwards.
Die reflowlötfähige Lotsubstanz wird dabei derart aufgebracht, dass sie die lötbare Fläche vollständig abdeckt und Überlappungsbereiche über an die lötbare Fläche angrenzende Bereiche der Oberfläche des Trägersubstats aufweist. Die Überlappung ist zum einen zum Ausgleich produktionstechnischer Toleranzen erforderlich und dient zudem dazu, eine ausreichende Menge Lotsubstanz bereitzustellen, was insbesondere für die Durchsteckkontaktierungen wichtig ist, bei denen die Lotsubstanz beim Erhitzen durch den Kapillareffekt in die Bohrung der Durchsteckkontaktierung gezogen werden soll.The Reflow solderable solder substance is applied in such a way that it completely covers the solderable surface and overlap areas on the solderable area adjacent areas of the surface of the vehicle having. The overlap is on the one hand to compensate for production tolerances required and also serves to provide a sufficient amount of solder, which especially for the Durchsteckkontaktierungen is important, where the Lotsubstanz when heated by the capillary effect in the bore of the through-hole to be drawn.
Die lötbare Fläche ist um das Lotzentrum herum meist kreisförmig oder rechteckig ausgebildet und wird dann durch einen Streifen des Lotsubstrats überdeckt. Wird Fläche des Auftrags der Lotsubstanz dabei im Verhältnis zur Grundfläche der lötbaren Fläche groß gewählt, kann es beim Reflowlöten zu einer unerwünschten Ansammlung des Lots in einem Bereich außerhalb der lötbaren Fläche kommen. Wird bei gleich großer Fläche und damit Menge des Auftrags der Lotsubstanz andererseits die Grundfläche der lötbaren Fläche bis annähernd auf die Größe der Fläche des Auftrags der Lotsubstanz ausgedehnt, liegt zwar die Ansammlung des Lots immer im Bereich der lötbaren Fläche, jedoch dennoch zum Teil nicht im Lotzentrum. Dies ist aber ebenfalls für die elektrische oder mechanische Belastbarkeit der Lötstelle negativ.The solderable area is formed around the solder center usually circular or rectangular and is then covered by a strip of solder substrate. Will area the Order of the solder substance in relation to the base area of the solderable area chosen big, can Reflowing it to an undesirable Collection of solder in an area outside the solderable plane come. Will be the same size area and thus quantity of the order of the lot substance on the other hand the base area of the solderable area close to on the size of the area of the Lotsubstanz order extended, although the accumulation of the Lots always in the field of solderable Area, but still not in the Lot Center. This is also true for the electrical or mechanical load capacity of the solder joint negative.
Aufgabe der Erfindung ist es daher, einen verbesserten Bauelementeträger sowie ein Verfahren zum Reflowlöten vorzustellen, welcher eine Ansammlung der Lotsubstanz im Lotzentrum sicherstellt. Diese Aufgabe wird durch die Merkmale des Anspruchs 1 bzw. durch das Verfahren nach Anspruch 6 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.task The invention is therefore an improved component carrier as well a method for reflow soldering to imagine what an accumulation of the lot substance in the Lotzentrum ensures. This object is achieved by the features of the claim 1 or solved by the method according to claim 6. Advantageous developments are the dependent claims refer to.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen und Figuren näher erläutert. Kurze Beschreibung der Figuren:The Invention will be described below with reference to embodiments and figures explained in more detail. short Description of the figures:
Die
So
zeigt
Die
Die
Bei
diesem Bauelementeträger
wird das Lotsubstrat
Es erfolgt also ein partielles Verlängern der überdruckten lötbaren Fläche in die Bereiche, in denen sich beim Umschmelzen des Lotes Anhäufungen oder Lotperlen bilden. Somit fließt das Lot über den verlängerten Bereich in die Lotstelle ab. Das auf der lötbaren Fläche verbleibende Lot kann über die Geometrie und Größe der Verlängerung so eingestellt werden, dass kein relevant negativer Einfluss auf die Ausbildung der Lötstelle entsteht. Die Geometrie und Form der partiellen Verlängerung kann je nach Anwendungsfall variiert werden (z.B. eckig, spitz, quadratisch, halbkugelförmig etc.).It So there is a partial lengthening the overprinted solderable area in the areas where the remelting or melting of the solder Forming solder beads. Thus flows the lot over the extended one Area in the Lotstelle from. The solder remaining on the solderable surface can over the Geometry and size of extension be set so that no relevant negative impact on the formation of the solder joint arises. The geometry and shape of the partial extension can be varied depending on the application (for example, angular, pointed, square, hemispherical Etc.).
Claims (6)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10331008A DE10331008A1 (en) | 2003-07-09 | 2003-07-09 | Reflow solderable component carrier |
| PCT/DE2004/000964 WO2005011346A1 (en) | 2003-07-09 | 2004-05-08 | Component support capable of being brazed by refusion |
| DE112004001679T DE112004001679D2 (en) | 2003-07-09 | 2004-05-08 | Reflow solderable component carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10331008A DE10331008A1 (en) | 2003-07-09 | 2003-07-09 | Reflow solderable component carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10331008A1 true DE10331008A1 (en) | 2005-02-03 |
Family
ID=33560000
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10331008A Withdrawn DE10331008A1 (en) | 2003-07-09 | 2003-07-09 | Reflow solderable component carrier |
| DE112004001679T Ceased DE112004001679D2 (en) | 2003-07-09 | 2004-05-08 | Reflow solderable component carrier |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE112004001679T Ceased DE112004001679D2 (en) | 2003-07-09 | 2004-05-08 | Reflow solderable component carrier |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE10331008A1 (en) |
| WO (1) | WO2005011346A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024583A1 (en) * | 2007-08-22 | 2009-02-26 | Continental Automotive Gmbh | Method for assembling electrical components equipped with terminal pins on a printed circuit board |
| AT515446A1 (en) * | 2014-03-07 | 2015-09-15 | Zkw Elektronik Gmbh | Structuring the solder mask of printed circuit boards to improve the soldering results |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19738399A1 (en) * | 1997-09-03 | 1999-03-04 | Bosch Gmbh Robert | Method for connecting electronic components to a carrier substrate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4761881A (en) * | 1986-09-15 | 1988-08-09 | International Business Machines Corporation | Single step solder process |
| US5129573A (en) * | 1991-10-25 | 1992-07-14 | Compaq Computer Corporation | Method for attaching through-hole devices to a circuit board using solder paste |
| JPH11111407A (en) * | 1997-10-03 | 1999-04-23 | Fujitsu Ltd | Connector surface mounting method and connector |
| JP2000252613A (en) * | 1999-02-26 | 2000-09-14 | Canon Inc | Electronic circuit board and soldering method thereof |
| US6292372B1 (en) * | 1999-07-15 | 2001-09-18 | Lucent Technologies, Inc. | Solder thieving pad for wave soldered through-hole components |
-
2003
- 2003-07-09 DE DE10331008A patent/DE10331008A1/en not_active Withdrawn
-
2004
- 2004-05-08 WO PCT/DE2004/000964 patent/WO2005011346A1/en not_active Ceased
- 2004-05-08 DE DE112004001679T patent/DE112004001679D2/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19738399A1 (en) * | 1997-09-03 | 1999-03-04 | Bosch Gmbh Robert | Method for connecting electronic components to a carrier substrate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024583A1 (en) * | 2007-08-22 | 2009-02-26 | Continental Automotive Gmbh | Method for assembling electrical components equipped with terminal pins on a printed circuit board |
| DE102007039612A1 (en) * | 2007-08-22 | 2009-02-26 | Continental Automotive Gmbh | Method for populating electrical components provided with pins on a printed circuit board |
| AT515446A1 (en) * | 2014-03-07 | 2015-09-15 | Zkw Elektronik Gmbh | Structuring the solder mask of printed circuit boards to improve the soldering results |
| AT515446B1 (en) * | 2014-03-07 | 2019-12-15 | Zkw Group Gmbh | Structuring the solder mask of printed circuit boards to improve the soldering results |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112004001679D2 (en) | 2006-05-18 |
| WO2005011346A1 (en) | 2005-02-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8143 | Withdrawn due to claiming internal priority |