DE102010048632A1 - Method for manufacturing set of electronic units in high-frequency circuit of mobile telephone, involves applying electromagnetic protective layer on electronic unit to cover side surfaces of substrate uncovered by isolation process - Google Patents
Method for manufacturing set of electronic units in high-frequency circuit of mobile telephone, involves applying electromagnetic protective layer on electronic unit to cover side surfaces of substrate uncovered by isolation process Download PDFInfo
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Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft ein Verfahren zur Herstellung einer Mehrzahl von elektronischen Bauelementen sowie ein elektronisches Bauelement, das mit einem solchen Verfahren hergestellt ist. Die elektronischen Bauelemente weisen jeweils eine elektromagnetische Schutzschicht zur elektromagnetischen Schirmung auf, über die insbesondere zugleich Wärme abführbar ist.The invention relates to a method for producing a plurality of electronic components and to an electronic component produced by such a method. The electronic components each have an electromagnetic protective layer for electromagnetic shielding, via which heat is dissipated in particular at the same time.
Hintergrund der ErfindungBackground of the invention
In Hochfrequenzschaltungen entstehen während des Betriebs eine Vielzahl von unterschiedlichen Frequenzen. Diese Hochfrequenzsignale und ihre Überlagerungen werden von der Schaltung abgestrahlt, wenn die Metallstrukturen der Schaltung für die Stöhrstrahlung eine Antenne bilden. Beispielsweise ist in Mobiltelefonen in eine definierte Strahlungsleistung, die von dem Mobiltelefon ausgeht, obligatorisch. Dabei muss nicht nur die Schaltung als Ganzes vor einer Abstrahlung und/oder gegen Einflüsse von eintreffenden Signalen und Strahlung geschützt werden, sondern auch einzelne Bereiche der Schaltung untereinander elektromagnetisch abgeschirmt werden.In high-frequency circuits arise during operation a variety of different frequencies. These high frequency signals and their heterodynes are radiated by the circuit when the metal structures of the interfering radiation circuit form an antenna. For example, in mobile phones in a defined radiation power emanating from the mobile phone, mandatory. Not only must the circuit as a whole be protected against radiation and / or against the effects of incoming signals and radiation, but also individual areas of the circuit must be electromagnetically shielded from one another.
Auch die im Betrieb auftretende Wärme von elektronischen Bauteilen der Schaltung sollte im Betrieb von den Bauteilen abgeführt werden.The heat occurring during operation of electronic components of the circuit should be dissipated during operation of the components.
Zur elektromagnetischen Abschirmung wird beispielsweise herkömmlich ein Panel, das ein Substrat, eine darauf angeordnete Verkapselung sowie davon eingeschlossene elektronische Bauteile umfasst, soweit eingeritzt, dass leitfähige Schichten des Substrats aufgedeckt werden, jedoch wird das Substrat nicht vollständig durchtrennt. Daraufhin wird eine Metallschicht auf das teilweise angeschnittene Panel aufgebracht, die zur Hochfrequenzabschirmung dient. Erst im Anschluss daran wird das Panel vollständig durchtrennt und somit zu den einzelnen elektronischen Bauelementen vereinzelt. Dabei müssen bei dem Panel die Schneidetoleranzen berücksichtigt werden und zudem bleibt ein Vorsprung am Rand der Bauelemente zurück. Auch dies führt zu einem erhöhten Platzbedarf. Ein solches Verfahren ist beispielsweise in der
Es ist wünschenswert, ein elektronisches Bauelement sowie ein Verfahren zur Herstellung einer Mehrzahl von elektronischen Bauelementen anzugeben, das kompakte elektronische Bauelemente ermöglicht. Zudem soll eine Abschirmung von Bereichen der jeweiligen Bauelemente und eine Wärmeableitung zuverlässig möglich sein.It is desirable to provide an electronic component and a method of manufacturing a plurality of electronic components that enable compact electronic components. In addition, a shielding of areas of the respective components and a heat dissipation should be reliably possible.
In einer Ausführungsform der Erfindung umfasst ein elektronisches Bauelement ein Substrat sowie mindestens ein elektronisches Bauteil, das auf dem Substrat angeordnet ist. Eine Verkapselung deckt das Bauteil auf dem Substrat ab. Das elektronische Bauelement umfasst weiterhin eine elektromagnetische Schutzschicht, die eine dem Substrat abgewandte Oberfläche der Verkapselung und die Seitenflächen, die quer zu der Oberfläche gerichtet sind, bedeckt. Das Bauelement umfasst weiterhin eine thermische und/oder elektrische Kopplung, die die elektromagnetische Schutzschicht thermisch und/oder elektrisch mit einem von der Verkapselung eingeschlossenen Bereich des elektronischen Bauelements koppelt.In one embodiment of the invention, an electronic component comprises a substrate and at least one electronic component which is arranged on the substrate. An encapsulation covers the component on the substrate. The electronic component further comprises an electromagnetic protective layer which covers a surface of the encapsulation facing away from the substrate and the side surfaces which are directed transversely to the surface. The component further comprises a thermal and / or electrical coupling, which couples the electromagnetic protective layer thermally and / or electrically with a region of the electronic component enclosed by the encapsulation.
Durch die thermische und/oder elektrische Kopplung wird eine elektromagnetische Abschirmung von einzelnen Bereichen des elektronischen Bauelements ermöglicht. Insbesondere ist das elektronische Bauteil, das beispielsweise Filter, Transistoren, Widerstände, Kondensatoren und/oder Induktivitäten umfasst, durch die elektrische Kopplung, die die elektromagnetische Schutzschicht mit dem von der Verkapselung eingeschlossenen Bereich koppelt, elektrisch abgeschirmt. Dabei wird die elektrische Kopplung über die elektromagnetische Schutzschicht gegen Masse kurzgeschlossen.The thermal and / or electrical coupling enables electromagnetic shielding of individual regions of the electronic component. In particular, the electronic component, which comprises, for example, filters, transistors, resistors, capacitors and / or inductors, is electrically shielded by the electrical coupling which couples the electromagnetic protective layer to the region enclosed by the encapsulation. The electrical coupling is short-circuited via the electromagnetic protective layer to ground.
Durch die thermische und/oder elektrische Kopplung, die die elektromagnetische Schutzschicht thermisch mit dem von der Verkapselung eingeschlossenen Bereich koppelt, ist die Kopplung eingerichtet, Wärme die beispielsweise während des Betriebs von dem elektronischen Bauteil auftritt, über die elektromagnetische Schutzschicht abzuführen. Dadurch ist ein zuverlässiger Betrieb des elektronischen Bauelements möglich.Through the thermal and / or electrical coupling, which thermally couples the electromagnetic protective layer to the encapsulation-encapsulated region, the coupling is arranged to dissipate heat that occurs, for example, during operation of the electronic component via the electromagnetic protective layer. As a result, reliable operation of the electronic component is possible.
In Ausführungsformen ist die thermische und/oder elektrische Kopplung als Teil der elektromagnetischen Schutzschicht ausgebildet, der sich in den von der Verkapselung eingeschlossenen Bereich erstreckt. In weiteren Ausführungsformen umfasst die Kopplung ein separates Koppelelement, das mit der elektromagnetischen Schutzschicht und dem von der Verkapselung eingeschlossenen Bereich thermisch und/oder elektrisch gekoppelt ist.In embodiments, the thermal and / or electrical coupling is formed as part of the electromagnetic protection layer extending into the region enclosed by the encapsulation. In further embodiments, the coupling comprises a separate coupling element which is thermally and / or electrically coupled to the electromagnetic protective layer and the region enclosed by the encapsulation.
Die thermische Kopplung ist in Ausführungsformen als Teil der elektromagnetischen Schutzschicht ausgebildet und die elektromagnetische Schutzschicht ist in den Ausführungsformen in direktem Kontakt zu dem elektronischen Bauteil. In weiteren Ausführungsformen ist das elektronische Bauteil über das Koppelelement thermisch mit der elektromagnetischen Schutzschicht gekoppelt, wobei das Koppelelement in direktem Kontakt mit dem elektrischen Bauteil ist.The thermal coupling is formed in embodiments as part of the electromagnetic protection layer and the electromagnetic protection layer is in the embodiments in direct contact with the electronic component. In further embodiments, the electronic component is thermally coupled via the coupling element with the electromagnetic protective layer, wherein the coupling element is in direct contact with the electrical component.
In einer Ausführungsform umfasst das Verfahren zur Herstellung einer Mehrzahl von elektronischen Bauelementen ein Bereitstellen eines flächig ausgedehnten Panels, das wiederum umfasst: Ein Substrat und eine Mehrzahl von elektronischen Bauteilen, die auf dem Substrat angeordnet sind. Weiterhin weist das Panel eine Verkapselung auf, die die Mehrzahl von Bauteilen auf dem Substrat abdeckt. In an embodiment, the method of manufacturing a plurality of electronic components comprises providing a planar expanded panel, which in turn comprises: a substrate and a plurality of electronic components disposed on the substrate. Furthermore, the panel has an encapsulation covering the plurality of components on the substrate.
Das Panel wird zu der Mehrzahl von elektronischen Bauelementen vereinzelt. Nach dem Vereinzeln wird jeweils eine elektromagnetische Schutzschicht auf die Bauelemente der Mehrzahl der elektronischen Bauelemente aufgebracht, so dass die elektromagnetische Schutzschicht jeweils thermisch und/oder elektrisch mit einem von der Verkapselung eingeschlossenen Bereichs des elektronischen Bauelements gekoppelt ist.The panel is singulated to the plurality of electronic components. After singulation, an electromagnetic protective layer is respectively applied to the components of the plurality of electronic components, such that the electromagnetic protective layer is in each case thermally and / or electrically coupled to a region of the electronic component enclosed by the encapsulation.
Durch das Aufbringen der elektromagnetischen Schutzschicht anschließend an das Vereinzeln des Panels zu der Mehrzahl der elektronischen Bauelemente ist es möglich, die Größe der elektronischen Bauelemente zu reduzieren und gleichzeitig eine verlässliche elektromagnetische Abschirmung und Wärmeableitung zu realisieren. Auf dem Substrat muss keine Kontaktfläche für ein externes Abschirmungsgehäuse vorgesehen werden. Zudem bleibt kein Vorsprung am Rand des Substrats übrig wie bei einem zweistufigen Vereinzelungsprozess, wenn das Panel mit einem Schritt vereinzelt wird.By applying the electromagnetic protective layer subsequent to singulating the panel to the plurality of electronic components, it is possible to reduce the size of the electronic components while realizing reliable electromagnetic shielding and heat dissipation. No contact surface for an external shield housing needs to be provided on the substrate. In addition, no protrusion remains on the edge of the substrate as in a two-step singulation process when the panel is singulated with one step.
Die elektromagnetische Schutzschicht wird in Ausführungsformen mittels eines Sputter-Depositionsverfahrens aufgebracht. In Ausführungsformen wird die elektromagnetische Schutzschicht so aufgebracht, dass die Seitenflächen der elektronischen Bauelemente, die quer zur Hauptausbreitungsrichtung der elektronischen Bauelemente beziehungsweise des Substrats eingerichtet sind, jeweils vollständig von der elektromagnetischen Schutzschicht bedeckt werden. Dies ist möglich, da das Panel und somit auch das Substrat zuerst vereinzelt werden und erst daraufhin die elektromagnetische Schutzschicht aufgebracht wird. Daher hängen die elektronischen Bauelemente der Mehrzahl der elektronischen Bauelemente beim Aufbringen der Schutzschicht auch nicht über einen Teilbereich des Substrats zusammen, so dass insbesondere die Seitenflächen des Substrats während des Aufbringens der elektromagnetischen Schutzschicht freiliegt.The electromagnetic protective layer is applied in embodiments by means of a sputtering deposition process. In embodiments, the electromagnetic protective layer is applied so that the side surfaces of the electronic components, which are arranged transversely to the main propagation direction of the electronic components or the substrate, are each completely covered by the electromagnetic protective layer. This is possible because the panel and thus also the substrate are separated first and only then the electromagnetic protective layer is applied. Therefore, when the protective layer is applied, the electronic components of the plurality of electronic components also do not hang over a partial region of the substrate, so that in particular the side surfaces of the substrate are exposed during the application of the electromagnetic protective layer.
Zur thermischen und/oder elektrischen Kopplung werden in Ausführungsformen Ausnehmungen in die Verkapselung eingebracht, in denen elektrisch und/oder thermisch leitfähiges Material angeordnet wird. In weiteren Ausführungsformen werden Koppelelemente vor dem Aufbringen der elektromagnetischen Schutzschicht angeordnet, die nachfolgend nach dem Aufbringen der elektromagnetischen Schutzschicht mit dieser thermisch und/oder elektrisch gekoppelt werden.For thermal and / or electrical coupling recesses are introduced into the encapsulation in which electrically and / or thermally conductive material is arranged in embodiments. In further embodiments, coupling elements are arranged before the application of the electromagnetic protective layer, which are subsequently thermally and / or electrically coupled thereto after the application of the electromagnetic protective layer.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Weitere Vorteile, Merkmale und Weiterbildungen ergeben sich aus den nachfolgenden in Verbindung mit den
Es zeigen:Show it:
Gleiche, gleichartige und gleichwirkende Elemente können in den Figuren mit den gleichen Bezugszeichen versehen sein. Die dargestellten Elemente und deren Größenverhältnisse zueinander sind grundsätzlich nicht als maßstabsgerecht anzusehen, vielmehr können einzelne Elemente, wie beispielsweise Schichten und Bereiche zur besseren Darstellbarkeit und/oder zum besseren Verständnis übertrieben dick oder groß dimensioniert dargestellt sein.The same, similar and equivalent elements may be provided in the figures with the same reference numerals. The illustrated elements and their proportions to each other are basically not to be regarded as true to scale, but individual elements, such as layers and areas for better representability and / or for better understanding can be shown exaggerated thick or large.
Detaillierte Beschreibung von Ausführungsformen Detailed description of embodiments
Das Substrat
Das elektronische Bauelement ist in drei Dimensionen ausgedehnt und weist zwei weitere nicht dargestellte Seitenflächen auf, die quer zu den gezeigten. Seitenflächen verlaufen. Die Beschreibung der gezeigten Seitenflächen bezieht sich auch auf die nicht dargestellten Seitenflächen.The electronic component is expanded in three dimensions and has two further side surfaces, not shown, which are transverse to those shown. Side surfaces run. The description of the side surfaces shown also relates to the side surfaces, not shown.
Auf der Hauptfläche
Die elektronischen Bauteile
Die elektromagnetische Schutzschicht
Die elektromagnetische Schutzschicht
Um die elektronischen Bauteile
Das Bauteil
Die elektronischen Bauteile
Weiterhin ist im Unterschied zur Abschirmung zwischen den Bauteilen
In weiteren Ausführungsformen fehlt das Material
In weiteren Ausführungsformen reicht die Ausnehmung
Die Abschirmung der elektronischen Bauteile ist lediglich exemplarisch anhand der Bauteile
In weiteren Ausführungsformen wird die Ausnehmung
Gemäß dem rechten Teil der
Das Panel
Durch das Aufbringen der elektromagnetischen Schutzschicht nach der Vereinzelung ist nur ein einziger Vereinzelungsschritt nötig. Daher muss auf dem Substrat auch keine zusätzliche Fläche für einen zweiten oder dritten Vereinzelungsschritt entlang beispielsweise der Linie
Dadurch, dass die Schutzschicht erst am Ende der Herstellung der Bauelemente auf die Bauelemente aufgebracht wird, ist es relativ einfach möglich das Aufbringen der Schutzschicht
Alle Formen der beschriebenen Ausführungsbeispiele zur Abschirmung der Bauteile untereinander sowie der Ausführungsbeispiele zur Wärmeabfuhr aus dem Bereich
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 100100
- Panelpanel
- 101, 102101, 102
- Trennlinieparting line
- 111, 112111, 112
- elektronisches Bauelementelectronic component
- 110110
- Mehrzahl elektronischer BauelementePlurality of electronic components
- 120120
- Substratsubstratum
- 121, 122121, 122
- Seitenflächeside surface
- 123123
- Hauptflächemain area
- 130130
- elektromagnetische Schutzschichtelectromagnetic protective layer
- 134134
- Teilpart
- 140140
- Verkapselungencapsulation
- 141, 142141, 142
- Seitenflächeside surface
- 143143
- Oberflächesurface
- 152152
- Kontaktierungcontact
- 161161
- Ausnehmungrecess
- 162, 163162, 163
- elektrisch leitfähiges Materialelectrically conductive material
- 164164
- Drahtwire
- 165165
- Metallblättchenmetal flakes
- 166166
- Metallisierungmetallization
- 168168
- BereichArea
- 171, 172, 173171, 172, 173
- elektronische Bauteileelectronic components
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- US 7451539 B2 [0004] US 7451539 B2 [0004]
Claims (11)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010048632A DE102010048632A1 (en) | 2010-10-15 | 2010-10-15 | Method for manufacturing set of electronic units in high-frequency circuit of mobile telephone, involves applying electromagnetic protective layer on electronic unit to cover side surfaces of substrate uncovered by isolation process |
PCT/EP2011/062919 WO2012016898A2 (en) | 2010-08-05 | 2011-07-27 | Method for producing a plurality of electronic devices having electromagnetic shielding and in particular having heat dissipation and electronic device having electromagnetic shielding and in particular having dissipation |
JP2013522203A JP5636497B2 (en) | 2010-08-05 | 2011-07-27 | Method for manufacturing electronic device assembly having electromagnetic shield and heat radiation portion, and electronic device having electromagnetic shield and heat radiation portion |
US13/814,225 US9386734B2 (en) | 2010-08-05 | 2011-07-27 | Method for producing a plurality of electronic devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010048632A DE102010048632A1 (en) | 2010-10-15 | 2010-10-15 | Method for manufacturing set of electronic units in high-frequency circuit of mobile telephone, involves applying electromagnetic protective layer on electronic unit to cover side surfaces of substrate uncovered by isolation process |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010048632A1 true DE102010048632A1 (en) | 2012-04-19 |
Family
ID=45895802
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010048632A Ceased DE102010048632A1 (en) | 2010-08-05 | 2010-10-15 | Method for manufacturing set of electronic units in high-frequency circuit of mobile telephone, involves applying electromagnetic protective layer on electronic unit to cover side surfaces of substrate uncovered by isolation process |
Country Status (1)
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DE (1) | DE102010048632A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5151770A (en) * | 1989-11-24 | 1992-09-29 | Mitsubishi Denki Kabushiki Kaisha | Shielded semiconductor device |
US5694300A (en) * | 1996-04-01 | 1997-12-02 | Northrop Grumman Corporation | Electromagnetically channelized microwave integrated circuit |
US20050040501A1 (en) * | 2003-08-20 | 2005-02-24 | Hagen Deborah A. | Wirebonded assemblage method and apparatus |
US20080014678A1 (en) * | 2006-07-14 | 2008-01-17 | Texas Instruments Incorporated | System and method of attenuating electromagnetic interference with a grounded top film |
US7451539B2 (en) | 2005-08-08 | 2008-11-18 | Rf Micro Devices, Inc. | Method of making a conformal electromagnetic interference shield |
US20100140759A1 (en) * | 2008-12-10 | 2010-06-10 | Stats Chippac, Ltd. | Semiconductor Device and Method of Forming a Shielding Layer over a Semiconductor Die after Forming a Build-Up Interconnect Structure |
-
2010
- 2010-10-15 DE DE102010048632A patent/DE102010048632A1/en not_active Ceased
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5151770A (en) * | 1989-11-24 | 1992-09-29 | Mitsubishi Denki Kabushiki Kaisha | Shielded semiconductor device |
US5694300A (en) * | 1996-04-01 | 1997-12-02 | Northrop Grumman Corporation | Electromagnetically channelized microwave integrated circuit |
US20050040501A1 (en) * | 2003-08-20 | 2005-02-24 | Hagen Deborah A. | Wirebonded assemblage method and apparatus |
US7451539B2 (en) | 2005-08-08 | 2008-11-18 | Rf Micro Devices, Inc. | Method of making a conformal electromagnetic interference shield |
US20080014678A1 (en) * | 2006-07-14 | 2008-01-17 | Texas Instruments Incorporated | System and method of attenuating electromagnetic interference with a grounded top film |
US20100140759A1 (en) * | 2008-12-10 | 2010-06-10 | Stats Chippac, Ltd. | Semiconductor Device and Method of Forming a Shielding Layer over a Semiconductor Die after Forming a Build-Up Interconnect Structure |
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