DE102016100275A1 - SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREFOR - Google Patents
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823431—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823481—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type isolation region manufacturing related aspects, e.g. to avoid interaction of isolation region with adjacent structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind
- H01L27/085—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only
- H01L27/088—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
- H01L27/0886—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate including transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
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- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Abstract
Eine Halbleitervorrichtung enthält ein Substrat, mindestens eine aktive Halbleiterrippe, mindestens eine erste Dummy-Halbleiterrippe und mindestens eine zweite Dummy-Halbleiterrippe. Die aktive Halbleiterrippe ist auf dem Substrat angeordnet. Die erste Dummy-Halbleiterrippe ist auf dem Substrat angeordnet. Die zweite Dummy-Halbleiterrippe ist auf dem Substrat und zwischen der aktiven Halbleiterrippe und der ersten Dummy-Halbleiterrippe angeordnet. Eine Oberseite der ersten Dummy-Halbleiterrippe und eine Oberseite der zweiten Dummy-Halbleiterrippe sind in verschiedenen Richtungen gekrümmt.A semiconductor device includes a substrate, at least one active semiconductor fin, at least a first dummy semiconductor fin, and at least one second dummy semiconductor fin. The active semiconductor rib is disposed on the substrate. The first dummy semiconductor fin is disposed on the substrate. The second dummy semiconductor fin is disposed on the substrate and between the active semiconductor fin and the first dummy semiconductor fin. An upper surface of the first dummy semiconductor fin and an upper surface of the second dummy semiconductor fin are curved in different directions.
Description
PRIORITÄTSANSPRUCH UND QUERVERWEISPRIORITY CLAIM AND CROSS-REFERENCE
Diese Anmeldung beansprucht die Priorität der vorläufigen US-Anmeldung mit der Seriennummer 62/214,770, eingereicht am 4. September 2015, die durch Bezugnahme in den vorliegenden Text aufgenommen wird.This application claims the benefit of US Provisional Application Serial No. 62 / 214,770, filed Sep. 4, 2015, which is incorporated herein by reference.
HINTERGRUNDBACKGROUND
Die Branche der integrierten Halbleiterschaltkreise (IC) hat ein exponentielles Wachstum erfahren. Technische Fortschritte bei den IC-Materialien und dem IC-Design haben IC-Generationen hervorgebracht, wo jede Generation kleinere und komplexere Schaltkreise aufweist als die vorherige Generation. Im Zuge der IC-Entwicklung hat die Funktionsdichte (d. h. die Anzahl der miteinander verbundenen Bauelemente pro Chipfläche) allgemein zugenommen, während die Geometriegröße (d. h. die kleinste Komponente (oder Leitung), die mittels eines Herstellungsprozesses gebildet werden kann) kleiner geworden ist. Dieser Prozess der Abwärtsskalierung realisiert allgemein Vorteile, indem er die Produktionseffizienz steigert und die mit der Produktion verbundenen Kosten senkt.The semiconductor integrated circuit (IC) industry has experienced exponential growth. Technological advances in IC materials and IC design have created generations of ICs where each generation has smaller and more complex circuits than the previous generation. In the course of IC development, the functional density (i.e., the number of interconnected devices per chip area) has generally increased while the geometry size (i.e., the smallest component (or line) that can be formed by a manufacturing process) has become smaller. This downscaling process generally provides benefits by increasing production efficiency and reducing costs associated with production.
Eine solche Abwärtsskalierung hat auch die Komplexität der Verarbeitung und Herstellung von ICs erhöht; und damit diese Fortschritte realisiert werden können, sind ähnliche Entwicklungen bei der IC-Verarbeitung und -Herstellung nötig. Zum Beispiel ist ein dreidimensionaler Transistor, wie zum Beispiel ein Fin-like Field-Effect Transistor (FinFET), hervorgebracht wurden, um einen planaren Transistor zu ersetzen. Der Rippenkanal hat eine Gesamtkanalbreite, die durch die Oberseite und die gegenüberliegenden Seitenwände definiert wird.Such downscaling has also increased the complexity of processing and manufacturing ICs; and, for these advances to be realized, similar developments in IC processing and manufacturing are needed. For example, a three-dimensional transistor, such as a fin-like field-effect transistor (FinFET), has been brought out to replace a planar transistor. The fin channel has a total channel width defined by the top and opposite side walls.
KURZE BESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS
Aspekte der vorliegenden Offenbarung werden am besten anhand der folgenden detaillierten Beschreibung verstanden, wenn sie in Verbindung mit den beiliegenden Figuren gelesen wird. Es wird darauf hingewiesen, dass gemäß der gängigen Praxis in der Industrie verschiedene Strukturelemente nicht maßstabsgetreu gezeichnet. Die Abmessungen veranschaulichter Strukturelemente können im Interesse der Übersichtlichkeit der Besprechung nach Bedarf vergrößert oder verkleinert werden.Aspects of the present disclosure will be best understood from the following detailed description when read in conjunction with the accompanying drawings. It should be noted that, in accordance with current industry practice, various structural elements are not drawn to scale. The dimensions of illustrated features may be increased or decreased as needed for the sake of clarity of the meeting.
Die
DETAILLIERTE BESCHREIBUNGDETAILED DESCRIPTION
Die folgende Offenbarung stellt viele verschiedene Ausführungsformen oder Beispiele zum Implementieren verschiedener Merkmale des hier besprochenen Gegenstandes bereit. Im Folgenden werden konkrete Beispiele von Komponenten und Anordnungen beschrieben, um die vorliegende Offenbarung zu vereinfachen. Diese sind natürlich nur Beispiele und dienen nicht der Einschränkung. Zum Beispiel kann die Ausbildung eines ersten Strukturelements über oder auf einem zweiten Strukturelement in der folgenden Beschreibung Ausführungsformen umfassen, bei denen die ersten und zweiten Strukturelemente in direktem Kontakt ausgebildet sind, und können auch Ausführungsformen umfassen, bei denen zusätzliche Strukturelemente zwischen den ersten und zweiten Strukturelementen ausgebildet sein können, so dass die ersten und zweiten Strukturelemente nicht unbedingt in direktem Kontakt stehen. Darüber hinaus kann die vorliegende Offenbarung Bezugszahlen und/oder -buchstaben in den verschiedenen Beispielen wiederholen. Diese Wiederholung dient dem Zweck der Einfachheit und Klarheit und schafft nicht automatisch eine Beziehung zwischen den verschiedenen besprochenen Ausführungsformen und/oder Konfigurationen.The following disclosure provides many different embodiments or examples for implementing various features of the subject matter discussed herein. In the following, concrete examples of components and arrangements will be described to simplify the present disclosure. Of course, these are only examples and are not intended to be limiting. For example, the formation of a first structural element above or on a second structural element in the following description may include embodiments in which the first and second structural elements are in direct contact, and may also include embodiments in which additional structural elements are interposed between the first and second structural elements may be formed so that the first and second structural elements are not necessarily in direct contact. In addition, the present disclosure may repeat reference numerals and / or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not automatically provide a relationship between the various embodiments and / or configurations discussed.
Des Weiteren können räumlich relative Begriffe, wie zum Beispiel „unterhalb”, „unter”, „unterer”, „oberhalb”, „oberer” und dergleichen, im vorliegenden Text verwendet werden, um die Beschreibung zu vereinfachen, um die Beziehung eines Elements oder Strukturelements zu einem oder mehreren anderen Elementen oder Strukturelementen zu beschreiben, wie in den Figuren veranschaulicht. Die räumlich relativen Begriffe sollen neben der in den Figuren gezeigten Ausrichtung noch weitere Ausrichtungen der Vorrichtung während des Gebrauchs oder Betriebes umfassen. Die Vorrichtung kann auch anders ausgerichtet (90 Grad gedreht oder anders ausgerichtet) sein, und die im vorliegenden Text verwendeten räumlich relativen Deskriptoren können gleichermaßen entsprechend interpretiert werden.Furthermore, spatially relative terms such as "below," "below," "lower," "above," "upper," and the like, may be used herein to simplify the description to indicate the relationship of an element Structure element to describe one or more other elements or structural elements, as illustrated in the figures. The spatially relative terms are intended to include, in addition to the orientation shown in the figures, further orientations of the device during use or operation. The device may also be otherwise oriented (90 degrees rotated or otherwise oriented), and the spatially relative descriptors used herein may equally be interpreted accordingly.
Zu Beispielen von Bauelementen, die anhand einer oder mehrerer Ausführungsformen der vorliegenden Anmeldung verbessert werden können, gehören Halbleiterbauelemente. Ein solches Bauelement ist zum Beispiel ein FinFET-Bauelement. Das FinFET-Bauelement kann zum Beispiel ein komplementäres Metalloxidhalbleiter(CMOS)-Bauelement sein, das ein P-Typ-Metalloxidhalbleiter(PMOS)-FinFET-Bauelement und ein N-Typ-Metalloxidhalbleiter(NMOS)-FinFET-Bauelement enthält. Die folgende Offenbarung wird mit einem FinFET-Beispiel fortgesetzt, um verschiedene Ausführungsformen der vorliegenden Anmeldung zu veranschaulichen. Es versteht sich jedoch, dass die Anmeldung nicht auf einen bestimmten Typ des Bauelements zu beschränken ist.Examples of devices that may be improved by one or more embodiments of the present application include semiconductor devices. Such a device is, for example, a FinFET device. The FinFET device may be, for example, a complementary metal oxide semiconductor (CMOS) device including a P-type metal oxide semiconductor (PMOS) FinFET device and an N-type metal oxide semiconductor (NMOS) FinFET device. The following disclosure is made with a FinFET Example continued to illustrate various embodiments of the present application. It should be understood, however, that the application is not to be limited to a particular type of device.
Die
Eine Kontaktinselschicht
Es wird ein Lithografieprozess ausgeführt, der Halbleiterrippen auf dem Halbleitersubstrat
Wir wenden uns
Wir wenden uns
In
Die ersten und zweiten Dummy-Halbleiterrippen
In einigen Ausführungsformen können die Höhe H1 der aktiven Halbleiterrippen
Wir wenden uns
Dann wird die PR-Schicht
Wir wenden uns
In
Wir wenden uns
Die PR-Schicht
Wir wenden uns
In
Die ersten Dummy-Halbleiterrippen
Gemäß den oben beschriebenen Ausführungsformen werden die Dummy-Halbleiterrippen (d. h. die ersten und zweiten Dummy-Halbleiterrippen) unter Verwendung mindestens zweier Abtragsprozesse (d. h. die Prozesse der
Wir wenden uns
In einigen Ausführungsformen enthält die Isolierungsstruktur
Nach dem Ausbilden der Isolierungsstruktur
Bei einer anschließenden Verarbeitung können auch verschiedene Kontakte, Durchkontaktierungen und Leitungen sowie mehrschichtige Interconnect-Strukturelemente (zum Beispiel Metallschichten und Zwischenschicht-Dielektrika) auf dem Substrat
Gemäß einigen Ausführungsformen enthält ein Halbleiterbauelement ein Substrat, mindestens eine aktive Halbleiterrippe, mindestens eine erste Dummy-Halbleiterrippe und mindestens eine zweite Dummy-Halbleiterrippe. Die aktive Halbleiterrippe ist auf dem Substrat angeordnet. Die erste Dummy-Halbleiterrippe ist auf dem Substrat angeordnet. Die zweite Dummy-Halbleiterrippe ist auf dem Substrat und zwischen der aktiven Halbleiterrippe und der ersten Dummy-Halbleiterrippe angeordnet. Eine Oberseite der ersten Dummy-Halbleiterrippe und eine Oberseite der zweiten Dummy-Halbleiterrippe sind in verschiedenen Richtungen gekrümmt.According to some embodiments, a semiconductor device includes a substrate, at least one active semiconductor fin, at least a first dummy semiconductor fin, and at least one second dummy semiconductor fin. The active semiconductor rib is disposed on the substrate. The first dummy semiconductor fin is disposed on the substrate. The second dummy semiconductor fin is disposed on the substrate and between the active semiconductor fin and the first dummy semiconductor fin. An upper surface of the first dummy semiconductor fin and an upper surface of the second dummy semiconductor fin are curved in different directions.
Gemäß einigen Ausführungsformen enthält ein Halbleiterbauelement ein Substrat, mindestens eine aktive Halbleiterrippe, mehrere erste Dummy-Halbleiterrippen und mindestens eine zweite Dummy-Halbleiterrippe. Die aktive Halbleiterrippe ist auf dem Substrat angeordnet. Die ersten Dummy-Halbleiterrippen sind auf dem Substrat angeordnet. Die Oberseiten der ersten Dummy-Halbleiterrippen bilden ein konkaves Profil. Die zweite Dummy-Halbleiterrippe ist auf dem Substrat und zwischen der aktiven Halbleiterrippe und den ersten Dummy-Halbleiterrippen angeordnet. Eine Oberseite der zweiten Dummy-Halbleiterrippe ist nicht-konkav.According to some embodiments, a semiconductor device includes a substrate, at least one active semiconductor fin, a plurality of first dummy semiconductor fins, and at least one second dummy semiconductor fin. The active semiconductor rib is disposed on the substrate. The first dummy semiconductor ribs are arranged on the substrate. The tops of the first dummy semiconductor fins form a concave profile. The second dummy semiconductor fin is disposed on the substrate and between the active semiconductor fin and the first dummy semiconductor fins. An upper surface of the second dummy semiconductor fin is non-concave.
Gemäß einigen Ausführungsformen enthält ein Verfahren zum Herstellen einer Halbleiterrippe das Bilden mindestens einer aktiven Halbleiterrippe, mindestens einer ersten Dummy-Halbleiterrippe und mindestens einer zweiten Dummy-Halbleiterrippe auf einem Substrat. Die zweite Dummy-Halbleiterrippe wird zwischen der aktiven Halbleiterrippe und der ersten Dummy-Halbleiterrippe angeordnet. Mindestens ein Abschnitt der zweiten Dummy-Halbleiterrippe wird entfernt. Mindestens ein Abschnitt der ersten Dummy-Halbleiterrippe wird entfernt, nachdem der Abschnitt der zweiten Dummy-Halbleiterrippe entfernt wurde.In accordance with some embodiments, a method of fabricating a semiconductor fin includes forming at least one active semiconductor fin, at least one first dummy semiconductor fin, and at least one second dummy semiconductor fin on a substrate. The second dummy semiconductor fin is disposed between the active semiconductor fin and the first dummy semiconductor fin. At least a portion of the second dummy semiconductor fin is removed. At least a portion of the first dummy semiconductor fin is removed after the portion of the second dummy semiconductor fin is removed.
Das oben Dargelegte umreißt Merkmale verschiedener Ausführungsformen, damit der Fachmann die Aspekte der vorliegenden Offenbarung besser verstehen kann. Dem Fachmann leuchtet ein, dass er ohne Weiteres die vorliegende Offenbarung als eine Basis für das Entwerfen oder Modifizieren anderer Prozesse und Strukturen verwenden kann, um die gleichen Zwecke und/oder die gleichen Vorteile der Ausführungsformen zu erreichen, die im vorliegenden Text vorgestellt wurden. Der Fachmann erkennt ebenso, dass solche äquivalenten Konstruktionen nicht vom Wesen und Schutzumfang der vorliegenden Offenbarung abweichen und dass er verschiedene Änderungen, Ersetzungen und Modifizierungen daran vornehmen kann, ohne vom Wesen und Schutzumfang der vorliegenden Offenbarung abzuweichen.The foregoing outlines features of various embodiments for the skilled artisan to better understand the aspects of the present disclosure. Those skilled in the art will readily appreciate that the present disclosure can be used as a basis for designing or modifying other processes and structures to achieve the same purposes and / or advantages of the embodiments presented herein. Those skilled in the art will also recognize that such equivalent constructions do not depart from the spirit and scope of the present disclosure and that various changes, substitutions and alterations can be made therein without departing from the spirit and scope of the present disclosure.
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US14/967,176 US9722050B2 (en) | 2015-09-04 | 2015-12-11 | Semiconductor device and manufacturing method thereof |
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