DE19983428B4 - Conductive plug for semiconductor device used in SRAM - has conductive plug whose upper surface is covered by covering which is formed in holes formed on substrate - Google Patents
Conductive plug for semiconductor device used in SRAM - has conductive plug whose upper surface is covered by covering which is formed in holes formed on substrate Download PDFInfo
- Publication number
- DE19983428B4 DE19983428B4 DE19983428T DE19983428T DE19983428B4 DE 19983428 B4 DE19983428 B4 DE 19983428B4 DE 19983428 T DE19983428 T DE 19983428T DE 19983428 T DE19983428 T DE 19983428T DE 19983428 B4 DE19983428 B4 DE 19983428B4
- Authority
- DE
- Germany
- Prior art keywords
- conductive
- conductive plug
- layer
- semiconductor device
- wiring layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
-
- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
-
- 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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76895—Local interconnects; Local pads, as exemplified by patent document EP0896365
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/482—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body
- H01L23/485—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Diese Erfindung bezieht sich auf eine Halbleitervorrichtung mit einer geteilten Kontaktstruktur und ein Verfahren zur Herstellung derselben. Der Begriff "geteilte Kontaktstruktur" bezieht sich auf eine Verbindungsstruktur, bei der benachbarte leitende Schichten durch einen leitenden Stopfen in einem einzelnen Kontaktloch verbunden sind.This Invention relates to a semiconductor device having a shared contact structure and a method of manufacturing the same. The term "shared Contact structure " refer to a connection structure in which adjacent conductive layers connected by a conductive plug in a single contact hole are.
Mit der Entwicklung der Halbleitervorrichtungen, die, wie zum Beispiel ein LSI, hochgradig integriert sind und eine höhere Leistung aufweisen in einem Transistor vom MOS-Typ, hat es verschiedene Versuche bei dem Entwurf einer Gateelektrode und einer Verdrahtungsstruktur gegeben. Zum Beispiel ist in einem SRAM (Static Random Access Memory = statischer Speicher mit wahlfreiem Zugriff) eine geteilte Kontaktstruktur verwendet worden, bei der eine Gateelektrode und ein Source-Drain-Bereich in einem leitenden Stopfen innerhalb eines einzelnen Kontaktlochs verbunden sind.With the development of semiconductor devices, such as an LSI, are highly integrated and have higher performance in a MOS type transistor, has made several attempts to design a gate electrode and given a wiring structure. For example, in one SRAM (Static Random Access Memory = static memory with random Access), a shared contact structure has been used where a gate electrode and a source-drain region in a conductive Plugs are connected within a single contact hole.
In
dem Teil B ist ein leitender Stopfen
In
anderen Worten, bei der Halbleitervorrichtung aus
Die
Derart
gibt es bei einer Halbleitervorrichtung mit einer geteilten Kontaktstruktur
wie der in dem Teil A aus
Eine
Aufgabe dieser Erfindung ist es, eine Halbleitervorrichtung mit
einer geteilten Kontaktstruktur wie derjenigen in dem Teil A aus
Diese Aufgabe wird gelöst durch eine Halbleitervorrichtung nach Anspruch 1 und ein Verfahren nach Anspruch 6.This Task is solved by a semiconductor device according to claim 1 and a method according to Claim 6.
Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.further developments the invention are specified in the subclaims.
Entsprechend des Verfahrens wird die leitende Schicht für die Verdrahtungsschicht direkt über dem leitenden Stopfen ausgebildet, aber beim Ätzen der leitenden Schicht wird die Beschichtung, die von der Verdrahtungsschicht getrennt ist, über dem leitenden Stopfen, der nicht mit der Verdrahtungsschicht verbunden ist, ausgebildet, so daß keine Beschädigungen an der oberen Oberfläche des leitenden Stopfens während des Ätzens verursacht werden.Corresponding the method, the conductive layer for the wiring layer is directly over the conductive plug, but when etching the conductive layer the coating is separated from the wiring layer is about the conductive plug that is not connected to the wiring layer is trained so that none damage on the top surface of the conductive plug during of etching caused.
Darum können die Schritte zum Verhindern von Beschädigungen bei dem leitenden Stopfen im Stand der Technik eliminiert werden, das heißt, die Schritte zum Ausbilden einer weiteren Isolierschicht über der Isolierschicht, in der der leitende Stopfen ausgebildet ist, das Ausbilden eines Kontaktloches in der weiteren Isolierschicht zur Verbindung mit der Verdrahtungsschicht, und das Ausbilden eines leitenden Stopfens in dem Kontaktloch.Therefore can the steps to prevent damage to the conductive Plugs in the prior art are eliminated, that is, the steps to form a further insulation layer over the insulation layer, in the conductive plug is formed, the formation of a contact hole in the further insulation layer for connection to the wiring layer, and forming a conductive plug in the contact hole.
Nachfolgend werden Ausführungsformen der Erfindung unter Bezugnahme auf die Figuren beschrieben.following are embodiments of Invention described with reference to the figures.
Zuerst
werden auf einem Halbleitersubstrat
Insbesondere
werden auf der Oberfläche des
Halbleitersubstrates
Auf
dem Halbleitersubstrat
Eine
Barrierenschicht, die aus Ti oder TiN ausgebildet ist, wird auf
den Seiten und den Böden der
individuellen Kontaktlöcher
und der oberen Oberfläche
der Isolierschicht
Der
leitende Stopfen
Eine
Aluminiumschicht (eine leitende Schicht als eine Verdrahtungsschicht)
wird direkt über
den leitenden Stopfen
Derart
werden die untere Verdrahtung
Wie
in
Derart
wird beim Ätzen
der leitenden Schicht für
die untere Verdrahtung
Dann
wird eine Isolierschicht (ein zweites Zwischenschicht-Dielektrikum)
Entsprechend
dieser Ausführungsform
werden keine Beschädigungen
an der oberen Oberfläche
des leitenden Stopfens
Die
planare Gestalt der Beschichtung
Im
Vergleich der Halbleitervorrichtung aus
In
der obigen Ausführungsform
ist der leitende Stopfen
Zum
Beispiel kann, wenn die leitende Schicht für die untere Verdrahtung
Die obigen benachbarten leitenden Schichten in der obigen Ausführungsform sind die Gateelektrode, die nahe der Oberfläche des Halbleitersubstrates ausgebildet ist, und der Source-Drain-Bereich, der auf der Oberfläche des Halbleitersubstrates ausgebildet ist. Diese Erfindung kann jedoch auch auf eine Halbleitervorrichtung angewandt werden, bei der die benachbarten leitenden Schichten in einer Schicht, über einem Halbleitersubstrat, getrennt von der Oberfläche des Halbleitersubstrates ausgebildet sind.The the above adjacent conductive layers in the above embodiment are the gate electrode that is close to the surface of the semiconductor substrate is formed, and the source-drain region, which on the surface of the Semiconductor substrate is formed. However, this invention can can also be applied to a semiconductor device in which the neighboring conductive layers in one layer, over one Semiconductor substrate, separated from the surface of the semiconductor substrate are trained.
Wie oben beschrieben worden ist, entsprechend des Verfahrens dieser Erfindung, kann eine Halbleitervorrichtung mit einer geteilten Kontaktstruktur ohne Verbindung einer Verdrahtung über einen leitenden Stopfen, der benachbarte leitende Schichten verbindet, durch ein Verfahren bereitgestellt werden, das keine Beschädigungen an dem leitenden Stopfen verursacht, mit einer reduzierten Anzahl von Schritten verglichen mit dem Stand der Technik.How has been described above, according to the procedure of this Invention, can a semiconductor device with a divided contact structure without connecting a wiring via a conductive plug, which connects adjacent conductive layers by a method be provided that no damage to the conductive plug caused compared to a reduced number of steps with the state of the art.
Darum kann eine Halbleitervorrichtung, bei der eine Verbindung zwischen benachbarten leitenden Schichten durch den leitenden Stopfen mit der geteilten Kontaktstruktur sichergestellt ist, mit Kosten, die verglichen mit denjenigen entsprechend des Standes der Technik reduziert sind, bereitgestellt werden.Therefore can be a semiconductor device in which a connection between adjacent conductive layers with the conductive plug of the shared contact structure is ensured, with costs that reduced compared to those according to the prior art are provided.
Bei der Halbleitervorrichtung dieser Erfindung oder der Halbleitervorrichtung, die durch das Verfahren dieser Erfindung bereitgestellt worden ist, ist die Verbindung zwischen benachbarten leitenden Schichten durch den leitenden Stopfen mit der geteilten Kontaktstruktur sichergestellt.at the semiconductor device of this invention or the semiconductor device, provided by the method of this invention the connection between adjacent conductive layers through the conductive plug with the divided contact structure ensured.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1999/003178 WO2000077840A1 (en) | 1997-12-19 | 1999-06-15 | Semiconductor device and method of manufacture thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19983428T1 DE19983428T1 (en) | 2003-04-30 |
DE19983428B4 true DE19983428B4 (en) | 2004-10-28 |
Family
ID=14235965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19983428T Expired - Fee Related DE19983428B4 (en) | 1999-06-15 | 1999-06-15 | Conductive plug for semiconductor device used in SRAM - has conductive plug whose upper surface is covered by covering which is formed in holes formed on substrate |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR100399862B1 (en) |
DE (1) | DE19983428B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007011163A1 (en) * | 2007-02-20 | 2008-09-18 | Qimonda Ag | Connection structure and method for producing the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19531602A1 (en) * | 1994-12-26 | 1996-06-27 | Mitsubishi Electric Corp | Connection structure in semiconductor component |
-
1999
- 1999-06-15 DE DE19983428T patent/DE19983428B4/en not_active Expired - Fee Related
- 1999-06-15 KR KR10-2001-7001910A patent/KR100399862B1/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19531602A1 (en) * | 1994-12-26 | 1996-06-27 | Mitsubishi Electric Corp | Connection structure in semiconductor component |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007011163A1 (en) * | 2007-02-20 | 2008-09-18 | Qimonda Ag | Connection structure and method for producing the same |
US7462038B2 (en) | 2007-02-20 | 2008-12-09 | Qimonda Ag | Interconnection structure and method of manufacturing the same |
DE102007011163B4 (en) * | 2007-02-20 | 2013-02-07 | Qimonda Ag | Connection structure and method of manufacturing the same, non-volatile semiconductor memory device, electric memory card and electrical device |
Also Published As
Publication number | Publication date |
---|---|
KR20010053637A (en) | 2001-06-25 |
KR100399862B1 (en) | 2003-09-29 |
DE19983428T1 (en) | 2003-04-30 |
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