DE102013109542B4 - Chipbaugruppe und Verfahren zur Herstellung einer Chipbaugruppe - Google Patents
Chipbaugruppe und Verfahren zur Herstellung einer Chipbaugruppe Download PDFInfo
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- DE102013109542B4 DE102013109542B4 DE102013109542.9A DE102013109542A DE102013109542B4 DE 102013109542 B4 DE102013109542 B4 DE 102013109542B4 DE 102013109542 A DE102013109542 A DE 102013109542A DE 102013109542 B4 DE102013109542 B4 DE 102013109542B4
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Abstract
Chipbaugruppe, die Folgendes aufweist:einen Träger, der wenigstens einen Hohlraum aufweist, wobei der wenigstens eine Hohlraum Hohlraumseitenwände und eine Hohlraumbodenwand aufweist;einen Chip, der wenigstens teilweise innerhalb des wenigstens einen Hohlraums angeordnet ist, wobei eine Chiprückseite des Chips der Hohlraumbodenwand zugewandt ist;wenigstens eine Zwischenschicht, die über wenigstens einer Seitenwand des Chips angeordnet ist;wobei die wenigstens eine Zwischenschicht zum Leiten von Wärme von dem Chip zu dem Träger konfiguriert ist;wobei die wenigstens eine Zwischenschicht Folgendes aufweist:eine erste Metallschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand gebildet ist, wobei die erste Metallschicht wenigstens einen Teil einer Chiprückseiten-Metallisierungsschicht bildet; undeine Einzelchip-Befestigungsschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand über der ersten Metallschicht gebildet ist, wobei die Einzelchip-Befestigungsschicht die Chiprückseite und die wenigstens eine Seitenwand mit dem Träger elektrisch verbindet.
Description
- Verschiedene Ausführungsformen betreffen allgemein eine Chipbaugruppe und auf ein Verfahren zur Herstellung einer Chipbaugruppe.
- Derzeit werden Chips hauptsächlich über die Chiprückseite gekühlt. Wie in
5 gezeigt ist, kann ein Chip501 z. B. über Chiplötmittel505 , das auf der Chiprückseite gebildet ist, mit einem Chipträger503 , z. B. mit dem Leiterrahmen, verbunden sein. Der Chip kann von organischen Materialien507 , z. B. von Formmassen oder Schichtstoffen, die den Chip und die mit dem Chip verbundene elektrische Verdrahtung509 elektrisch isolieren, umgeben ein. Diese herkömmlichen organischen Materialien507 mit einer schlechten Wärmeleitfähigkeit von näherungsweise 1 W/mK können ohne ausreichende Wärmeausbreitung und/oder Wärmeleitung eine unzureichende Belastbarkeit bereitstellen. - Aus
JP 2011 159 701 A US 6 057 593 A ist ein Mikrowellen-Schaltkreis bekannt, wobei ein Chip in einer Vertiefung eines Metallträger angeordnet und mittels eines Bindematerials (z.B. Lötmittel) befestigt ist. AusDE 10 2007 017 831 A1 ist eine Chipanordnung bekannt, wobei ein Chip in einer Vertiefung eines Trägers angeordnet ist, wobei ein Freiraum zwischen dem Chip und dem Träger mit einem organischen Material gefüllt ist, und wobei ein Kontaktelement in der Vertiefung zwischen dem Träger und dem Chip angeordnet ist. AusDE 10 2011 000 751 A1 ist eine Chipanordnung bekannt, wobei ein Chip in einem Hohlraum eines Trägers und eine elektrisch leitfähige Schicht zwischen dem Träger und dem Chip angeordnet sind. - Verschiedene Ausführungsformen stellen eine Chipbaugruppe bereit, die Folgendes enthält: einen Träger, der wenigstens einen Hohlraum enthält, wobei der wenigstens eine Hohlraum Hohlraumseitenwände und eine Hohlraumbodenwand aufweist; einen Chip, der wenigstens teilweise innerhalb des wenigstens einen Hohlraums angeordnet ist, wobei eine Chiprückseite des Chips der Hohlraumbodenwand zugewandt ist; wenigstens eine Zwischenschicht, die über wenigstens einer Seitenwand des Chips angeordnet ist; wobei die wenigstens eine Zwischenschicht zum Leiten von Wärme von dem Chip zu dem Träger konfiguriert ist, wobei die wenigstens eine Zwischenschicht Folgendes aufweist: eine erste Metallschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand gebildet ist, wobei die erste Schicht wenigstens einen Teil einer Chiprückseiten-Metallisierungsschicht bildet; und eine Einzelchip-Befestigungsschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand über der ersten Metallschicht gebildet ist, wobei die Einzelchip-Befestigungsschicht die Chiprückseite und die wenigstens eine Seitenwand mit dem Träger elektrisch verbindet.
- Verschiedene Ausführungsformen stellen eine Chipbaugruppe bereit, die Folgendes enthält: einen Träger, der wenigstens einen Hohlraum enthält; einen Chip, der wenigstens teilweise innerhalb des wenigstens einen Hohlraums angeordnet ist und der über die Chiprückseiten-Metallisierungsschicht mit dem Träger elektrisch verbunden ist; wenigstens eine Zwischenschicht, die über wenigstens einer Seitenwand des Chips angeordnet ist; wobei die wenigstens eine Zwischenschicht zum Leiten von Wärme von dem Chip zu dem Träger konfiguriert ist.
- Gemäß einer Ausführungsform ist die wenigstens eine Zwischenschicht mit der Chiprückseiten-Metallisierungsschicht elektrisch verbunden.
- Gemäß einer Ausführungsform enthält der Träger einen Leiterrahmen.
- Gemäß einer Ausführungsform enthält der Träger wenigstens ein Material aus der folgenden Gruppe von Materialien: Kupfer, Nickel, Eisen, Silber, Gold, Palladium, Phosphor, eine Kupferlegierung, eine Nickellegierung, eine Eisenlegierung, eine Silberlegierung, eine Goldlegierung, eine Palladiumlegierung, eine Phosphorlegierung.
- Gemäß einer Ausführungsform ist ein Oberflächeninhalt der wenigstens einen Seitenwand im Wesentlichen gleich einem oder größer als ein Oberflächeninhalt der Chiprückseite.
- Gemäß einer Ausführungsform enthält der Chip eine Leistungshalbleitervorrichtung, die Siliciumcarbid und/oder Galliumnitrid enthält.
- Gemäß einer Ausführungsform enthält der Chip eine Leistungshalbleitervorrichtung, die eine Leistung im Bereich von 10 W bis 30 W ableitet.
- Gemäß einer Ausführungsform enthält der Chip eine Dicke im Bereich von 100 µm bis 800 µm.
- Gemäß einer Ausführungsform enthält die wenigstens eine Zwischenschicht ein Metall.
- Gemäß einer Ausführungsform enthält die wenigstens eine Zwischenschicht wenigstens ein Material, ein Element oder eine Legierung aus der folgenden Gruppe von Materialien: Kupfer, Aluminium, Silber, Zinn, Titan, Gold, Palladium, Zink, Nickel, Eisen.
- Gemäß einer Ausführungsform enthält die wenigstens eine Zwischenschicht ein Einzelchip-Befestigungsmaterial, wobei das Einzelchip-Befestigungsmaterial ein Lötmaterial enthält.
- Gemäß einer Ausführungsform enthält das Lötmaterial eine Lötmittellegierung, die wenigstens ein Material aus der folgenden Gruppe von Materialien: Zinn, Indium, Gold, Silber, Kupfer, Nickel, Blei und Antimon und eine oder mehrere Legierungen davon.
- Gemäß einer Ausführungsform ist die wenigstens eine Seitenwand über das Lötmaterial an den Träger gelötet.
- Gemäß einer Ausführungsform wird das Einzelchip-Befestigungsmaterial ferner über der Chiprückseite gebildet, wobei die Chiprückseite und die wenigstens eine Seitenwand über das Einzelchip-Befestigungsmaterial an den Träger gelötet werden.
- Gemäß einer Ausführungsform enthält die wenigstens eine Zwischenschicht eine Wärmeleitfähigkeit höher als 10 W/mK.
- Gemäß einer Ausführungsform ist die wenigstens eine Zwischenschicht mit einer Chiprückseiten-Metallisierungsschicht elektrisch kurzgeschlossen.
- Gemäß einer Ausführungsform ist die wenigstens eine Zwischenschicht dafür konfiguriert, Wärme von der wenigstens einen Seitenwand zu wenigstens einer Hohlraumseitenwand zu leiten.
- Gemäß einer Ausführungsform verbindet die wenigstens eine Zwischenschicht die wenigstens eine Seitenwand elektrisch mit dem Träger.
- Gemäß einer Ausführungsform enthält der Träger ein Keramikmaterial, wobei die wenigstens eine Zwischenschicht eine Kupferschicht enthält, die mit dem Keramikmaterial verbunden ist, wobei die Chiprückseite und die wenigstens eine Seitenwand über die Kupferschicht mit dem Träger verbunden sind.
- Verschiedene Ausführungsformen stellen ein Verfahren zum Herstellen einer Chipbaugruppe bereit, wobei das Verfahren Folgendes enthält: Anordnen eines Chips wenigstens teilweise innerhalb wenigstens eines in einem Chipträger gebildeten Hohlraums, wobei der wenigstens eine Hohlraum Hohlraumseitenwände und eine Hohlraumbodenwand aufweist, und wobei eine Chiprückseite der Hohlraumbodenwand zugewandt ist; Anordnen wenigstens einer Zwischenschicht über wenigstens einer Seitenwand des Chips; wobei die wenigstens eine Zwischenschicht dadurch Wärme von dem Chip zu dem Träger leitet, wobei die wenigstens eine Zwischenschicht Folgendes aufweist, eine erste Metallschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand gebildet ist, wobei die erste Schicht wenigstens einen Teil einer Chiprückseiten-Metallisierungsschicht bildet; und eine Einzelchip-Befestigungsschicht, die über der ersten Metallschicht gebildet ist, wobei die Einzelchip-Befestigungsschicht die Chiprückseite und die wenigstens eine Seitenwand mit dem Träger elektrisch verbindet.
- Gemäß einer Ausführungsform enthält das Anordnen der wenigstens einen Zwischenschicht über der wenigstens einen Seitenwand des Chips das Anordnen der wenigstens einen Zwischenschicht in einem Front-End-Prozess.
- Gemäß einer Ausführungsform enthält das Anordnen wenigstens einer Zwischenschicht über der wenigstens einen Seitenwand des Chips das Anordnen eines Einzelchip-Befestigungsmaterials über der Chiprückseite und über der wenigstens einer Seitenwand, wobei die Chiprückseite und die wenigstens eine Seitenwand über das Einzelchip-Befestigungsmaterial mit dem Träger verbunden sind.
- In den Zeichnungen beziehen sich gleiche Bezugszeichen überall in den mehreren Ansichten allgemein auf dieselben Teile. Die Zeichnungen sind nicht notwendig maßstabsgerecht, wobei der Schwerpunkt stattdessen allgemein auf die Darstellung der Prinzipien der Erfindung liegt. In der folgenden Beschreibung sind verschiedene Ausführungsformen der Erfindung anhand der folgenden Zeichnungen beschrieben, in denen:
-
1 eine Chipbaugruppe in Übereinstimmung mit einer Ausführungsform zeigt; -
2 ein Verfahren zur Herstellung einer Chipbaugruppe in Übereinstimmung mit einer Ausführungsform zeigt; -
3A bis3F ein Verfahren zur Herstellung einer Chipbaugruppe in Übereinstimmung mit verschiedenen Ausführungsformen zeigen; -
4 eine Chipbaugruppe in Übereinstimmung mit einer Ausführungsform zeigt; -
5 eine Chipbaugruppe gemäß dem Stand der Technik zeigt. - Die folgende ausführliche Beschreibung bezieht sich auf die beigefügten Zeichnungen, die veranschaulichend spezifische Einzelheiten und Ausführungsformen zeigen, in denen die Erfindung verwirklicht werden kann.
- Organische Materialien, z. B. Formmassen und/oder Schichtstoffe, die einen Chip in einer Chipbaugruppe umgeben, haben eine wesentlich schlechtere Wärmeleitfähigkeit von näherungsweise 1 W/mK als Lötmaterialien, die eine Wärmeleitfähigkeit von näherungsweise 40 W/mK aufweisen können, und als ein Chipträger, z. B. ein Kupferleiterrahmen, der eine Wärmeleitfähigkeit von näherungsweise 300 W/mK aufweisen kann. Selbstverständlich kann sich die Wärmeleitfähigkeit auf die Dicke, dividiert durch das Produkt aus Wärmewiderstand und Fläche, beziehen, d. h. Wärmeleitfähigkeit = Dicke/(Wärmewiderstand × Fläche).
- Verschiedene Ausführungsformen stellen eine Chipbaugruppe für aktuelle und künftige kompakte Chiptechnologien bereit, wobei kleinere Chipoberflächeninhalte erwartet werden können. Diese Chips, die Leistungshalbleiterchips enthalten können, können eine massive Leistungsbegrenzung, z. B. Strom- und Temperaturbegrenzungen, erfahren. Somit entstehen insbesondere für Technologien kleinerer Chips und jene mit kleineren Chipflächen wesentliche Leistungsbegrenzungen. Insbesondere kann ihr Maximalstrom, der z. B. durch I2max current = ΔTemp (K)/(Rth (K/W) × Ron (Ω) gegeben ist, begrenzt sein, da zu erwarten ist, dass die Maximaltemperatur des Chips in der Anwendung oder während des Betriebs in Zukunft bei näherungsweise 150 bis 175° konstant bleibt.
- Verschiedene Ausführungsformen stellen eine dreidimensionale Wärmeausbreitung (3D-Wärmeausbreitung) bereit, wobei Chips über die Chiprückseite und über die Chipseitenwände gekühlt werden können.
- Verschiedene Ausführungsformen stellen eine Zunahme der für die Wärmeleitung und/oder für die Wärmeableitung verfügbaren Flächen bereit und können für kleine Chips, z. B. Chips mit einer Fläche von näherungsweise 1 mm2 und/oder Chips mit einer Dicke im Bereich von 100 µm bis 700 µm, verwendet werden.
- Verschiedene Ausführungsformen stellen eine 3D-Wärmeausbreitung bereit, die die Chipkühlung von Leistungsbaugruppen verbessern kann, da der Umfang der Kühlung aktuell der beschränkende Faktor für Leistungselektronikkomponenten sein kann.
- Verschiedene Ausführungsformen stellen eine Chipbaugruppe bereit, wobei dünne Chipseitenwände zur Verwendung für die Kühlung in Leistungschipbaugruppen mittels eines Chipträgerhohlraums und wärmeleitender Chipeinbettungsmaterialien, z. B. Metalle, zum Ziel gesetzt werden können.
-
2 zeigt ein Verfahren200 zur Herstellung einer Chipbaugruppe in Übereinstimmung mit einer Ausführungsform. - Das Verfahren
200 kann enthalten: - Anordnen eines Chips, der wenigstens teilweise innerhalb wenigstens eines in einem Chipträger gebildeten Hohlraums angeordnet ist (in
210 ); - Anordnen wenigstens einer Zwischenschicht über wenigstens einer Seitenwand des Chips; wobei die wenigstens eine Zwischenschicht dadurch Wärme von dem Chip zu dem Träger leitet (in
220 ). -
3A bis3F zeigen ein Verfahren300 zur Herstellung einer Chipbaugruppe in Übereinstimmung mit einer Ausführungsform. - Wie in
3A (310 ) gezeigt ist, kann das Verfahren300 das Bilden wenigstens eines Hohlraums104 in dem Träger102 enthalten. - Der Träger
102 kann einen Leiterrahmen, z. B. einen Kupferleiterrahmen, enthalten. Der Träger102 kann wenigstens ein Material aus der folgenden Gruppe von Materialien enthalten: Kupfer, Nickel, Eisen, Silber, Gold, Palladium, Phosphor, einer Kupferlegierung, einer Nickellegierung, einer Eisenlegierung, einer Silberlegierung, einer Goldlegierung, einer Palladiumlegierung, einer Phosphorlegierung. Der Träger102 kann ein elektrisch leitendes Material enthalten. - Der Hohlraum
104 kann z. B. durch Ätzen und/oder z. B. durch Laserstrukturieren und/oder z. B. durch mechanisches Strukturieren gebildet werden. Der Hohlraum104 kann in der Weise gebildet werden, dass der Hohlraum104 eine Tiefe d aufweist. Die Hohlraumtiefe d kann im Bereich von 100 µm bis 800 µm liegen, wobei die Hohlraumtiefed selbstverständlich nicht auf diesen Bereich von Tiefen beschränkt zu sein braucht und in Übereinstimmung mit der Tiefe, die zum Halten eines Chips und/oder mehrerer Chips erforderlich ist, geändert werden kann. Die Hohlraumtiefed kann z. B. größer als dieDicke Ct des Chips106 sein. - Der Hohlraum
104 kann Hohlraumseitenwände316 und eine Hohlraumbodenwand318 , die mit Hohlraumseitenwänden316 verbunden und/oder aneinandergefügt sein kann, enthalten. Die Hohlraumseitenwände316 und die Hohlraumbodenwand318 definieren einen Hohlraum104 . Selbstverständlich kann der Hohlraum104 eine Aussparung enthalten, die von der Trägeroberseite315 gebildet ist. Selbstverständlich kann die Hohlraumtiefed die zwischen der Trägeroberseite315 und der Hohlraumbodenwand318 gemessene Entfernung sein. Die Hohlraumseitenwände316 können die Hohlraumbodenwand318 mit der Trägeroberseite315 verbinden. - Wie in
3B (in320 ) gezeigt ist, kann der Chip106 wenigstens teilweise innerhalb wenigstens eines in dem Chipträger102 gebildeten Hohlraums104 angeordnet sein. - Der Chip
106 kann einen Halbleitereinzelchip enthalten, der optional wenigstens ein Kontaktpad, z. B. eine Chiprückseiten-Metallisierungsschicht108 , enthalten kann. Die Chiprückseiten-Metallisierungsschicht108 kann über und/oder direkt auf der Chiprückseite322 gebildet sein. Ferner kann der Chip106 wenigstens ein Kontaktpad, z. B. wenigsten ein über und/oder direkt auf der Chipvorderseite324 gebildetes Chipvorderseiten-Kontaktpad326 , enthalten. Die Chiprückseiten-Metallisierungsschicht108 und/oder wenigstens ein Chipvorderseiten-Kontaktpad326 kann wenigstens ein Material, ein Element oder eine Legierung aus der folgenden Gruppe von Materialien enthalten: Kupfer, Aluminium, Silber, Zinn, Titan, Gold, Palladium, Zink, Nickel, Eisen. - Der Chip
106 kann eine Leistungshalbleitervorrichtung enthalten. Wie die Begriffe „Oberseite“, „erste Seite“, „Vorderseite“ oder „obere Seite“ hier in Bezug auf einige Leistungshalbleitervorrichtungen verwendet sind, können sie sich selbstverständlich auf die Seite des Chips beziehen, auf der eine oder mehrere Chipmetallisierungs-Kontaktpads gebildet sein können, auf der z. B. ein Gate-Gebiet, z. B. ein erstes Source/Drain-Gebiet, gebildet sein können. Die Begriffe „zweite Seite“, „Rückseite“ oder „Unterseite“ können sich selbstverständlich auf die Seite des Chips beziehen, auf der ein zweites Source/Drain-Gebiet gebildet sein kann. Selbstverständlich kann eine Halbleitervorrichtung, z. B. ein Halbleiterleistungstransistor, einen vertikalen Stromfluss durch den Chip zwischen einem Chipvorderseiten-Kontaktpad, z. B.326 , und einem Chiprückseiten-Kontaktpad, z. B. einer Chiprückseiten-Metallisierung108 , unterstützen. Zum Beispiel kann dem Chipvorderseiten-Kontaktpad326 eine Spannung im Bereich von 150 V bis 900 V zugeführt werden und kann eine Chiprückseiten-Metallisierung108 mit einer Grundpotentialspannung, z.B. Masse, z. B. 0 V, verbunden sein. - Der Chip
106 kann eine Leistungshalbleitervorrichtung enthalten, die Siliciumcarbid (SiC) enthält. Der Chip106 kann eine Leistungshalbleitervorrichtung enthalten, die Galliumnitrid (GaN) enthält. Der Chip106 kann wenigstens eine Leistungshalbleitervorrichtung, die z. B. SiC, GaN enthält, enthalten, wobei der Chip oder der Einzelchip kleiner als typische Einzelchips, die für Siliciumvorrichtungen verwendet werden, z. B. bis zu zwanzigmal kleiner, sein kann. Zum Beispiel kann der Chip106 einen Länge (Cl) × Breite (Cb, nicht gezeigt)-Oberflächeninhalt im Bereich von 0,5 mm2 bis 10 mm2 aufweisen. Der Chip106 kann eine Dicke (Ct) im Bereich von 100 µm bis 800 µm, z. B. von 200 µm bis 600 µm, z. B. von 300 µm bis 500 µm, enthalten. Der Chip106 kann eine Leistungshalbleitervorrichtung, die eine viel höhere Leistung als herkömmliche Siliciumchips ableitet, enthalten. Zum Beispiel kann der Chip106 eine Leistungshalbleitervorrichtung enthalten, die eine Leistung im Bereich von 10 W bis etwa 30 W ableitet. Die Kühlung von der Chiprückseite322 allein kann nicht ausreichen, um Wärme abzuleiten, um den Chip auf einem geeigneten Temperaturbereich, z. B. auf weniger als 150 °C, zu halten. - Der Chip
106 kann in wenigstens einem Hohlraum104 angeordnet sein. Der Chip106 kann über eine Chiprückseiten-Metallisierungsschicht108 mit einem Träger102 , z. B. mit einer Hohlraumbodenwand318 , elektrisch verbunden sein. In Übereinstimmung mit anderen Ausführungsformen kann der Chip106 aber nicht mit dem Träger elektrisch verbunden sein. Über wenigstens einer Seitenwand114 des Chips106 kann wenigstens eine Zwischenschicht112 angeordnet sein. Die wenigstens eine Zwischenschicht112 kann wenigstens eine Seitenwand114 nur teilweise bedecken oder kann wenigstens eine Seitenwand114 im Wesentlichen vollständig bedecken. Die wenigstens eine Zwischenschicht112 kann mit der Chiprückseiten-Metallisierungsschicht108 elektrisch verbunden sein. Die wenigstens eine Zwischenschicht112 kann dadurch Wärme von dem Chip106 zu dem Träger102 leiten. Es kann möglich sein, das der Oberflächeninhalt wenigstens einer Seitenwand (Ct × Cb × n) im Wesentlichen gleich dem oder größer als der Oberflächeninhalt der Chiprückseite (Cl × Cb) sein kann, wobei n die Anzahl der Seitenwände ist, die üblicherweise vier betragen kann. Es kann möglich sein, dass der Oberflächeninhalt wenigstens einer Seitenwand (Ct × Cb × n) einen Oberflächeninhalt im Bereich von 40 % bis 250 % des Chiprückseiten-Oberflächeninhalts (Cl × Cb) aufweisen kann. Zum Beispiel kann ein Chip mit einem Chiprückseiten-Oberflächeninhalt (Cl × Cb = 1 × 1 mm2) eine Chipdicke von etwa 200 µm aufweisen. Die Chipseitenwandfläche bei n Seitenwänden kann Ct × Cb = 1 × 0,2 × n mm2 sein, was näherungsweise 0,8 mm2 sein kann, falls n = 4 ist. Somit kann die Chipseitenwandfläche in diesem Beispiel näherungsweise 80 % des Chiprückseiten-Oberflächeninhalts sein. Somit kann die Wärmeableitung von der Seitenwand wesentlich zur Kühlung des Chips106 beitragen. - Die wenigstens eine Zwischenschicht
112 kann eine höhere Wärmeleitung als 10 W/mK enthalten. Die wenigstens eine Zwischenschicht112 kann ein Metall enthalten. Metalle können allgemein eine höhere Wärmeleitung als 300 W/mK, z. B. von näherungsweise 400 W/mK, aufweisen. Die wenigstens eine Zwischenschicht112 kann wenigstens ein Material, ein Element oder eine Legierung aus der folgenden Gruppe von Materialien enthalten: Kupfer, Aluminium, Silber, Zinn, Titan, Gold, Palladium, Zink, Nickel, Eisen. - Die wenigstens eine Zwischenschicht
112 kann ein Einzelchip-Befestigungsmaterial328 enthalten. Das Einzelchip-Befestigungsmaterial328 kann ein Lötmaterial enthalten. Das Lötmaterial kann eine Lötmittellegierung enthalten, die wenigstens ein Material aus der folgenden Gruppe von Materialien enthält: Zinn, Indium, Gold, Silber, Kupfer, Nickel, Blei und Antimon und eine oder mehrere Legierungen davon. Zum Beispiel kann das Lötmaterial ein Lötmaterial auf der Grundlage von Sn und/oder In enthalten, von denen eine oder beide eine Legierung mit wenigstens einem der Folgenden bilden können: Au, Ag, Cu, Ni, Pb oder Sb. Das Lötmaterial kann allgemein eine höhere Wärmeleitfähigkeit als 50 W/mK aufweisen. - Die wenigstens eine Zwischenschicht
112 kann mit der Chiprückseiten-Metallisierungsschicht108 elektrisch kurzgeschlossen sein. Während die Chiprückseiten-Metallisierungsschicht108 herkömmlich ausschließlich auf der Chiprückseite322 gebildet sein kann, kann der Rückseitenkontakt, z. B. die Chiprückseiten-Metallisierungsschicht108 , selbstverständlich ebenfalls wenigstens eine Seitenwand114 bedecken. Mit anderen Worten, die wenigstens eine Zwischenschicht112 kann als ein Rückseitenkontakt wie die Chiprückseiten-Metallisierungsschicht108 , die über und/oder direkt auf wenigstens einer Seitenwand114 und auf der Chiprückseite322 gebildet sein kann, konfiguriert sein. Somit kann wenigstens einer Zwischenschicht112 und einer Chiprückseiten-Metallisierungsschicht108 dieselbe Grundpotentialspannung, z. B. die Massespannung, z. B. 0 V, zugeführt werden. Die Chiprückseiten-Metallisierungsschicht108 kann mit dem Träger102 elektrisch verbunden sein. Außerdem kann die wenigstens eine Zwischenschicht112 wenigstens eine Seitenwand114 mit dem Träger102 , z.B. wenigstens mit einer Hohlraumseitenwand316 und wenigstens mit einer Hohlraumbodenwand318 , elektrisch verbinden. Die Chiprückseite322 , z. B. die Chiprückseiten-Metallisierungsschicht108 , und wenigstens eine Seitenwand114 können z.B. über das Einzelchip-Befestigungsmaterial328 mit dem Träger102 verbunden sein. Im Ergebnis kann dem Träger102 , der Chiprückseiten-Metallisierungsschicht108 und wenigstens einer Zwischenschicht112 dieselbe Grundpotentialspannung, z. B. die Massespannung, z. B. 0 V, zugeführt werden. - Die wenigstens eine Zwischenschicht
112 kann dafür konfiguriert sein, Wärme von wenigstens einer Seitenwand114 zu wenigstens einer Hohlraumseitenwand316 zu leiten. Die wenigstens eine Zwischenschicht112 kann den Gesamtoberflächeninhalt des Chips106 in Wärmekontakt mit dem Träger102 erhöhen. - Die
3C bis3E zeigen Prozesse zum Bilden wenigstens einer Zwischenschicht112 in Übereinstimmung mit verschiedenen Ausführungsformen. - In Übereinstimmung mit einer Ausführungsform, wie sie in
3C (330 ) gezeigt ist, kann die wenigstens eine Zwischenschicht112 über wenigstens einer Seitenwand114 und über einer Chiprückseiten-Metallisierungsschicht108 abgelagert werden. Die wenigstens eine Zwischenschicht112 kann ein Einzelchip-Befestigungsmaterial328 , z. B. ein Lötmaterial, z. B. eine Lötmittellegierung, enthalten. In diesem Fall kann die wenigstens eine Zwischenschicht112 durch wenigstens einen Ablagerungsprozess aus der folgenden Gruppe von Ablagerungsprozessen abgelagert werden: Verdampfung, Zerstäubung, galvanisches Plattieren. Selbstverständlich kann die wenigstens eine Zwischenschicht112 als ein Einzelchip-Befestigungsmaterial für die Chiprückseite322 und für wenigstens eine Chipseitenwand114 fungieren. Selbstverständlich kann ferner die wenigstens eine Zwischenschicht112 sowohl über wenigstens einer Seitenwand als auch über einer Chiprückseite322 gebildet werden, wobei wenigstens eine Seitenwand und die Chiprückseite322 elektrisch kurzgeschlossen werden können, z. B. dafür konfiguriert werden können, einem Chip dieselbe Potentialspannung zuzuführen. Nachdem der Chip106 wenigstens teilweise innerhalb des Hohlraums104 angeordnet worden sein kann, können wenigstens eine Seitenwand114 und eine Chiprückseiten-Metallisierungsschicht108 wenigstens über eine Zwischenschicht112 in Form eines Lötmaterials, z. B. des Einzelchip-Befestigungsmaterials328 , auf den Träger102 gelötet werden. Der Lötprozess kann z. B. einen Diffusionslötprozess enthalten. Die wenigstens eine Zwischenschicht112 kann über wenigstens einer Seitenwand114 des Chips102 und/oder über der Chiprückseite322 , z. B. über der Chiprückseiten-Metallisierungsschicht108 , in einem Front-End-Prozess, z. B. in einem Front-Endof-Line-Prozess (FEOL-Prozess), gebildet werden. - In Übereinstimmung mit einer weiteren Ausführungsform, wie sie in
3D (340 ) gezeigt ist, kann das Bilden wenigstens einer Zwischenschicht112 das Bilden einer ersten Metallschicht112M über der Chiprückseite322 und über wenigstens einer Seitenwand114 und das Bilden der Einzelchip-Befestigungsschicht328 über der ersten Metallschicht112M enthalten. - Die erste Metallschicht
112M kann wenigstens einen Teil der Chiprückseiten-Metallisierungsschicht108 bilden. Mit anderen Worten, die erste Metallschicht112M und die Chiprückseiten-Metallisierungsschicht108 können eine einzelne durchgehende Elektrode bilden, die über der Chiprückseite322 und über wenigstens einer Seitenwand114 gebildet ist. Die Einzelchip-Befestigungsschicht328 kann außerdem die Chiprückseite322 und wenigstens eine Seitenwand114 mit dem Träger102 elektrisch verbinden und kann ferner als ein Fügematerial, z. B. als ein Lötmaterial, zum Aneinanderfügen der Chiprückseite322 und wenigstens einer Seitenwand114 mit dem Träger102 fungieren. Sowohl die erste Metallschicht112M als auch die Einzelchip-Befestigungsschicht328 können während eines Front-End-Prozesses abgelagert gebildet werden. Wenigstens eine Seitenwand114 und eine Chiprückseiten-Metallisierungsschicht108 können über die wenigstens eine Zwischenschicht112 in Form eines Lötmaterials, z. B. des Einzelchip-Befestigungsmaterials328 , an den Träger102 gelötet werden. - Anstatt das Einzelchip-Befestigungsmaterial
328 über der Chiprückseite322 und über wenigstens einer Seitenwand114 z. B. während einer Front-End-Verarbeitung abzulagern, kann es in Übereinstimmung mit einer weiteren Ausführungsform, wie sie in3E (350 ) gezeigt ist, möglich sein, Lötmaterial332 in dem Hohlraum104 abzulagern. Das Lötmaterial332 kann analog dem Einzelchip-Befestigungsmaterial328 sein und kann unter Verwendung von Ablagerungsverfahren wie etwa Zerstäuben oder Aufdampfen oder galvanisches Plattieren in dem Hohlraum104 , z.B. über der Hohlraumbodenwand318 , abgelagert werden. Das Lötmaterial332 kann über der Hohlraumbodenwand318 gebildet werden. Der Chip106 kann über der Hohlraumbodenwand318 , z. B. über dem Lötmaterial332 , mit der Chiprückseite322 und/oder mit der Chiprückseiten-Metallisierungsschicht108 auf dem Lötmaterial332 , z. B. in elektrischem Kontakt mit dem Lötmaterial332 , angeordnet werden. Ein Erwärmungsprozess, z. B. ein Lötprozess, kann das Herausquetschen von Lötmaterial332 zwischen der Chiprückseite322 und der Hohlraumbodenwand318 auf wenigstens eine Seitenwand114 veranlassen. Im Ergebnis kann das Herausquetschen von Lötmaterial332 die wenigstens eine Zwischenschicht112 bilden, die über wenigstens einer Seitenwand114 des Chips106 angeordnet ist und die mit der Chiprückseiten-Metallisierungsschicht108 elektrisch verbunden ist. - In Übereinstimmung mit einer weiteren Ausführungsform, wie sie in
3F (360 ) gezeigt ist, kann die wenigstens eine Zwischenschicht112 über der Hohlraumbodenwand318 und wenigstens einer Hohlraumseitenwand316 , z. B. durch galvanisches Plattieren unter Verwendung einer Keimschicht, abgelagert werden. Die wenigstens eine Zwischenschicht112 kann das Einzelchip-Befestigungsmaterial328 wie zuvor beschrieben, z. B. ein Lötmaterial, enthalten. Der Chip106 kann innerhalb des Hohlraums104 angeordnet werden und über die wenigstens eine Zwischenschicht112 mit dem Hohlraum104 gefügt, z.B. verlötet, werden. Wenigstens eine Chipseitenwand114 kann über wenigstens eine Hohlraumseitenwand316 und die wenigstens eine Zwischenschicht112 mit dem Träger102 thermisch verbinden. Wenigstens eine Chiprückseiten-Metallisierungsschicht108 kann über die wenigstens eine Zwischenschicht112 und eine Hohlraumbodenwand318 mit dem Träger102 thermisch verbinden. - In Übereinstimmung mit einer weiteren Ausführungsform kann die wenigstens eine Zwischenschicht
112 ein Zwischenkontaktloch und/oder einen Kontakthöcker (nicht gezeigt), das bzw. der in einem Zwischenraum zwischen wenigstens einer Chipseitenwand114 und einer Hohlraumseitenwand316 gebildet ist, enthalten. Das Zwischenkontaktloch und/oder ein Kontakthöcker kann ähnliche Materialien, wie sie in Bezug auf die wenigstens eine Zwischenschicht112 beschrieben worden sind, enthalten und kann wenigstens eine Seitenwand114 mit der Hohlraumseitenwand316 , z.B. mit einer höheren Wärmeleitfähigkeit als 10 W/mK, thermisch und/oder elektrisch verbinden. In Übereinstimmung mit weiteren Ausführungsformen kann ein Zwischenkontaktloch und/oder ein Kontakthöcker ein Füllmaterial, z. B. Nanoröhrchen, z. B. Nanodrähte, z. B. Nanopartikel, enthalten, die z. B. unter Verwendung von Zwischenraumfüllverfahren und/oder z. B. unter Verwendung von Aufwachsverfahren, z. B. der Gasphasenabscheidung nach chemischem Verfahren, in einem Zwischenraum zwischen wenigstens einer Chipseitenwand114 und einer Hohlraumseitenwand316 abgelagert worden sind. Die wenigstens eine Zwischenschicht112 kann ein Füllmaterial mit einer höheren Wärmeleitfähigkeit als 10 W/mK enthalten. - Nach Ablagerung wenigstens einer Zwischenschicht
112 über wenigstens einer Seitenwand114 durch wenigstens einen der in3C ,3D ,3E oder3F gezeigten Prozesse und nach Fügen und/oder Anhaften des Chips106 auf den Träger102 über die Hohlraumbodenwand318 , die Hohlraumseitenwand316 und die wenigstens eine Zwischenschicht112 kann das Verfahren300 ferner Verdrahtungsprozesse und Prozesse der elektrischen Isolation enthalten. Diese Verdrahtungsprozesse und Prozesse der elektrischen Isolation können über der Chipoberseite324 ausgeführt werden. Wenigstens eine elektrische Querverbindung336 kann mit wenigstens einem Chipoberseiten-Kontaktpad326 elektrisch verbunden sein. Wenigstens eine elektrische Querverbindung336 kann wenigstens ein Material, ein Element oder eine Legierung aus der folgenden Gruppe von Materialien enthalten: Kupfer, Aluminium, Silber, Zinn, Titan, Gold, Palladium, Zink, Nickel, Eisen. - Wie z. B. in
3F gezeigt ist, kann in Übereinstimmung mit einigen Ausführungsformen wenigstens eine elektrische Querverbindung336 einen elektrisch leitenden Draht enthalten, der z. B. ein Draht sein kann, der mit wenigstens einem Chipoberseiten-Kontaktpad326 drahtkontaktiert sein kann. Nachfolgend kann elektrisches Isoliermaterial338 , z. B. eine Formmasse und/oder z. B. ein Schichtstoff, wenigstens über der Chipoberseite324 gebildet werden und wenigstens eine elektrische Querverbindung336 umgeben und/oder elektrisch isolieren. Wenigstens eine elektrische Querverbindung336 kann mit wenigstens einem Teil eines elektrisch leitenden Leiterrahmens elektrisch verbunden sein. Obgleich in3F eine elektrische Verdrahtung unter Verwendung einer Drahtkontaktierung gezeigt ist, können die elektrische Verdrahtung und die elektrische Isolation selbstverständlich auf irgendeine der wie in Übereinstimmung mit3B bis3F und4 gezeigten Ausführungsformen angewendet werden. - In Übereinstimmung mit einer weiteren Ausführungsform, wie sie in
3E gezeigt ist, kann wenigstens eine elektrische Querverbindung336 ein elektrisch leitendes Material enthalten, das wenigstens über einem Oberseiten-Kontaktpad326 abgelagert ist. Zum Beispiel kann ein elektrisch isolierendes Material338 über der Chipoberseite324 abgelagert sein. In dem elektrisch isolierenden Material338 kann wenigstens über einem Chipoberseiten-Kontaktpad326 ein Loch gebildet sein, wodurch das wenigstens ein Oberseiten-Kontaktpad326 freiliegt. In dem wenigstens einen Loch kann wenigstens eine elektrische Querverbindung336 ausgebildet sein, wobei die wenigstens eine elektrische Querverbindung336 mit wenigstens einem Chipoberseiten-Kontaktpad326 elektrisch verbunden sein kann. Wenigstens eine elektrische Querverbindung336 kann durch galvanisches Plattieren und/oder Zerstäuben und/oder Aufdampfen gebildet werden. Wenigstens eine elektrische Querverbindung336 kann ferner wenigstens eine Umverteilungsschicht zum elektrischen Verbinden wenigstens eines Chipoberseiten-Kontaktpads326 mit einer Fügestruktur337 , z. B. mit einer Lötstruktur, z. B. mit einer Lötmittelkugel, enthalten. Obgleich die elektrische Verdrahtung in3E unter Verwendung abgelagerter Querverbindungen gezeigt ist, kann selbstverständlich auf irgendeine der wie in Übereinstimmung mit3B bis3F und4 gezeigten Ausführungsformen eine elektrische Verdrahtung und elektrische Isolation angewendet werden. -
4 zeigt eine Chipbaugruppe410 in Übereinstimmung mit einer Ausführungsform. Bis auf die Tatsache, dass der Träger102 ein direkt kupfergebundenes Substrat402 enthalten kann, kann die Chipbaugruppe410 eines oder mehrere oder alle bereits in Bezug auf3A bis3F beschriebenen Merkmale enthalten. Ein direkt kupfergebundenes Substrat402 kann ein Keramikmaterial, z. B. Al2O3, das gute thermische Eigenschaften aufweist, enthalten. Das direkt kupfergebundene Substrat402 kann ein Keramiksubstrat441 und ein Kupfersubstrat442 , das mit der ersten Seite444 des Keramiksubstrats402 verbunden und/oder verschmolzen ist, enthalten. Darüber hinaus kann eine weitere Kupferschicht412 mit der zweiten Seite446 des Keramiksubstrats441 verbunden und/oder verschmolzen sein. Das Keramiksubstrat402 kann wenigstens einen im dem Keramiksubstrat402 gebildeten Hohlraum404 (analog zu104 ) enthalten. Ferner kann die Kupferschicht412 in dem Hohlraum404 , z. B. die Auskleidungshohlraumbodenwand418 (analog zu318 ) und wenigstens eine Hohlraumseitenwand416 (analog zu316 ), gebildet sein. Die wenigstens eine Zwischenschicht112 kann ferner die Kupferschicht412 enthalten. Mit anderen Worten, die weitere Kupferschicht412 kann analog zu wenigstens einer Zwischenschicht112 sein. Wenigstens eine Zwischenschicht112 kann mit Keramikmaterial, z. B. mit einem Keramiksubstrat402 , verbunden und/oder verschmolzen sein. Der Chip106 kann wie in Übereinstimmung mit vorhergehenden Ausführungsformen beschrieben wenigstens teilweise innerhalb des Hohlraums404 angeordnet sein und über die Chiprückseiten-Metallisierungsschicht108 mit dem Träger102 elektrisch verbunden sein. Die Chiprückseite322 und wenigstens eine Seitenwand114 können über eine weitere Kupferschicht412 mit dem Träger102 verbunden sein. Ferner kann die Kupferschicht412 wenigstens über einer Seitenwand114 des Chips106 angeordnet sein und mit der Chiprückseiten-Metallisierungsschicht108 elektrisch verbinden; wobei die Kupferschicht412 ferner zum Leiten von Wärme von dem Chip106 zu dem Träger102 konfiguriert sein kann. Bei Bedarf kann über der weiteren Kupferschicht412 ein Lötmaterial, z.B. ein Einzelchip-Befestigungsmaterial328 , abgelagert sein, wobei das Einzelchip-Befestigungsmaterial328 die Chiprückseiten-Metallisierungsschicht108 und wenigstens eine Seitenwand114 mit dem Träger102 elektrisch verbinden und thermisch verbinden kann und wobei das Einzelchip-Befestigungsmaterial328 darüber hinaus die Chiprückseite322 und wenigstens eine Seitenwand114 an dem Träger102 , z. B. durch Lösen, anhaftet. Über dem weiteren Träger448 kann ein direkt kupfergebundenes Substrat402 gebildet sein, das einen weiteren Leiterrahmen enthalten kann. Das direkt kupfergebundene Substrat402 kann über die Kupferschicht442 mit dem weiteren Träger338 elektrisch verbunden sein und/oder thermisch verbunden sein.
Claims (24)
- Chipbaugruppe, die Folgendes aufweist: einen Träger, der wenigstens einen Hohlraum aufweist, wobei der wenigstens eine Hohlraum Hohlraumseitenwände und eine Hohlraumbodenwand aufweist; einen Chip, der wenigstens teilweise innerhalb des wenigstens einen Hohlraums angeordnet ist, wobei eine Chiprückseite des Chips der Hohlraumbodenwand zugewandt ist; wenigstens eine Zwischenschicht, die über wenigstens einer Seitenwand des Chips angeordnet ist; wobei die wenigstens eine Zwischenschicht zum Leiten von Wärme von dem Chip zu dem Träger konfiguriert ist; wobei die wenigstens eine Zwischenschicht Folgendes aufweist: eine erste Metallschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand gebildet ist, wobei die erste Metallschicht wenigstens einen Teil einer Chiprückseiten-Metallisierungsschicht bildet; und eine Einzelchip-Befestigungsschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand über der ersten Metallschicht gebildet ist, wobei die Einzelchip-Befestigungsschicht die Chiprückseite und die wenigstens eine Seitenwand mit dem Träger elektrisch verbindet.
- Chipbaugruppe nach
Anspruch 1 , wobei der Chip über die Chiprückseiten-Metallisierungsschicht mit dem Träger elektrisch verbunden ist. - Chipbaugruppe nach
Anspruch 2 , wobei die wenigstens eine Zwischenschicht mit der Chiprückseiten-Metallisierungsschicht elektrisch verbunden ist. - Chipbaugruppe nach einem der
Ansprüche 1 bis3 , wobei der Träger einen Leiterrahmen aufweist. - Chipbaugruppe nach einem der
Ansprüche 1 bis4 , wobei der Träger wenigstens ein Material aus der folgenden Gruppe von Materialien aufweist: Kupfer, Nickel, Eisen, Silber, Gold, Palladium, Phosphor, eine Kupferlegierung, eine Nickellegierung, eine Eisenlegierung, eine Silberlegierung, eine Goldlegierung, eine Palladiumlegierung, eine Phosphorlegierung. - Chipbaugruppe nach einem der
Ansprüche 1 bis5 , wobei der Oberflächeninhalt der wenigstens einen Seitenwand gleich dem oder größer als der Oberflächeninhalt der Chiprückseite ist. - Chipbaugruppe nach einem der
Ansprüche 1 bis6 , wobei der Chip eine Leistungshalbleitervorrichtung aufweist, die Siliciumcarbid und/oder Galliumnitrid aufweist. - Chipbaugruppe nach einem der
Ansprüche 1 bis7 , wobei der Chip eine Leistungshalbleitervorrichtung aufweist, die eine Leistung im Bereich von 10 W bis 30 W ableitet. - Chipbaugruppe nach einem der
Ansprüche 1 bis8 , wobei der Chip eine Dicke im Bereich von 100 µm bis etwa 800 µm aufweist. - Chipbaugruppe nach einem der
Ansprüche 1 bis9 , wobei die wenigstens eine Zwischenschicht ein Metall aufweist. - Chipbaugruppe nach einem der
Ansprüche 1 bis10 , wobei die wenigstens eine Zwischenschicht wenigstens ein Material, ein Element oder eine Legierung aus der folgenden Gruppe von Materialien aufweist: Kupfer, Aluminium, Silber, Zinn, Titan, Gold, Palladium, Zink, Nickel, Eisen. - Chipbaugruppe nach einem der
Ansprüche 1 bis11 , wobei die wenigstens eine Zwischenschicht ein Einzelchip-Befestigungsmaterial aufweist, wobei das Einzelchip-Befestigungsmaterial ein Lötmaterial aufweist. - Chipbaugruppe nach
Anspruch 12 , wobei das Lötmaterial eine Lötmittellegierung aufweist, die wenigstens ein Material aus der folgenden Gruppe von Materialien aufweist: Zinn, Indium, Gold, Silber, Kupfer, Nickel, Blei und Antimon und eine oder mehrere Legierungen davon. - Chipbaugruppe nach
Anspruch 12 oder13 , wobei die wenigstens eine Seitenwand über das Lötmaterial an den Träger gelötet ist. - Chipbaugruppe nach einem der
Ansprüche 12 bis14 , wobei das Einzelchip-Befestigungsmaterial ferner über der Chiprückseite gebildet ist, wobei die Chiprückseite und die wenigstens eine Seitenwand über das Einzelchip-Befestigungsmaterial an den Träger gelötet ist. - Chipbaugruppe nach einem der
Ansprüche 1 bis15 , wobei die wenigstens eine Zwischenschicht eine Wärmeleitfähigkeit höher als 10 W/mK aufweist. - Chipbaugruppe nach einem der
Ansprüche 1 bis16 , wobei die wenigstens eine Zwischenschicht mit der Chiprückseiten-Metallisierungsschicht elektrisch kurzgeschlossen ist. - Chipbaugruppe nach einem der
Ansprüche 1 bis17 , wobei die wenigstens eine Zwischenschicht dafür konfiguriert ist, Wärme von der wenigstens einen Seitenwand zu wenigstens einer Hohlraumseitenwand zu leiten. - Chipbaugruppe nach einem der
Ansprüche 1 bis18 , wobei die wenigstens eine Zwischenschicht die wenigstens eine Seitenwand mit dem Träger elektrisch verbindet. - Chipbaugruppe nach einem der
Ansprüche 1 bis19 , wobei der Träger ein Keramikmaterial aufweist, und wobei die wenigstens eine Zwischenschicht eine Kupferschicht aufweist, die mit dem Keramikmaterial verbunden ist, wobei die Chiprückseite und die wenigstens eine Seitenwand über die Kupferschicht mit dem Träger verbunden sind. - Verfahren (200) zum Herstellen einer Chipbaugruppe, wobei das Verfahren Folgendes aufweist: Anordnen eines Chips wenigstens teilweise innerhalb wenigstens eines in einem Chipträger gebildeten Hohlraums (210), wobei der wenigstens eine Hohlraum Hohlraumseitenwände und eine Hohlraumbodenwand aufweist, und wobei eine Chiprückseite der Hohlraumbodenwand zugewandt ist; Anordnen wenigstens einer Zwischenschicht über wenigstens einer Seitenwand des Chips, wobei die wenigstens eine Zwischenschicht dadurch Wärme von dem Chip zu dem Träger leitet (220), wobei die wenigstens eine Zwischenschicht Folgendes aufweist: eine erste Metallschicht, die über der Chiprückseite und über der wenigstens einen Seitenwand gebildet ist, wobei die erste Schicht wenigstens einen Teil einer Chiprückseiten-Metallisierungsschicht bildet; und eine Einzelchip-Befestigungsschicht, die über der ersten Metallschicht gebildet ist, wobei die Einzelchip-Befestigungsschicht die Chiprückseite und die wenigstens eine Seitenwand mit dem Träger elektrisch verbindet.
- Verfahren (200) nach
Anspruch 21 , wobei das Anordnen (220) der wenigstens einen Zwischenschicht über der wenigstens einen Seitenwand des Chips das Anordnen der wenigstens einen Zwischenschicht in einem Front-End-Prozess aufweist. - Verfahren (200) nach
Anspruch 21 , wobei das Anordnen (220) wenigstens einer Zwischenschicht über der wenigstens einen Seitenwand des Chips das Anordnen eines Einzelchip-Befestigungsmaterials über der Chiprückseite und über der wenigstens einer Seitenwand aufweist, wobei die Chiprückseite und die wenigstens eine Seitenwand über das Einzelchip-Befestigungsmaterial mit dem Träger verbunden sind. - Verfahren (200) nach
Anspruch 21 , das ferner das elektrische Verbinden des Chips mit dem Träger über die Chiprückseiten-Metallisierungsschicht und das elektrische Verbinden der wenigstens einen Zwischenschicht mit der Chiprückseiten-Metallisierungsschicht aufweist.
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US20140326856A1 (en) * | 2013-05-06 | 2014-11-06 | Omnivision Technologies, Inc. | Integrated circuit stack with low profile contacts |
DE102014114982B4 (de) * | 2014-10-15 | 2023-01-26 | Infineon Technologies Ag | Verfahren zum Bilden einer Chip-Baugruppe |
US10083888B2 (en) * | 2015-11-19 | 2018-09-25 | Advanced Semiconductor Engineering, Inc. | Semiconductor device package |
DE102016122637A1 (de) * | 2016-11-23 | 2018-05-24 | Infineon Technologies Ag | Verfahren zur Verwendung beim Herstellen von Halbleitervorrichtungen |
JP2019504179A (ja) * | 2016-12-07 | 2019-02-14 | 東莞市國瓷新材料科技有限公司 | 銅メッキボックスダムを有するセラミック封入基板の調製方法 |
DE102018118251B4 (de) * | 2018-07-27 | 2020-02-06 | Infineon Technologies Ag | Chipanordnung und Verfahren zur Herstellung derselben |
DE102019103281B4 (de) * | 2019-02-11 | 2023-03-16 | Infineon Technologies Ag | Verfahren zum bilden eines die-gehäuses |
EP3852140A1 (de) * | 2020-01-20 | 2021-07-21 | Infineon Technologies Austria AG | Siliziumcarbid-leistungshalbleiterbauelement mit einer ni3sn4 aufweisenden diffusionslötverbindung und entsprechendes herstellungsverfahren |
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