Patents Assigned to GLOBALFOUNDRIES Inc.
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Publication number: 20140026675Abstract: Generally, the subject matter disclosed herein relates to testing pillar bumps formed on a semiconductor chip so as to detect the presence of anomalous stiff pillar bumps. One illustrative method disclosed herein includes positioning a test probe adjacent to a side of a pillar bump formed above a metallization system of a semiconductor chip, and performing a lateral force test on the pillar bump by contacting the side of the pillar bump with the test probe while moving the test probe at a substantially constant speed that is less than approximately 1 ?m/sec.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Vivian W. Ryan, Holm Geisler, Dirk Breuer
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Publication number: 20140027859Abstract: Method of forming transistor devices is disclosed that includes forming a first layer of high-k insulating material and a sacrificial protection layer above first and second active regions, removing the first layer of insulating material and the protection layer from above the second active region, removing the protection layer from above the first layer of insulating material positioned above the first active region, forming a second layer of high-k insulating material above the first layer of insulating material and the second active region, forming a layer of metal above the second layer of insulating material, and removing portions of the first and second layers of insulating material and the metal layer to form a first gate stack (comprised of the first and second layers of high-k material and the layer of metal) and a second gate stack (comprised of the second layer of high-k material and the layer of metal).Type: ApplicationFiled: July 30, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Martin Gerhardt, Stefan Flachowsky, Matthias Kessler
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Publication number: 20140027918Abstract: An approach for providing cross-coupling-based designs using diffusion contact structures is disclosed. Embodiments include providing first and second gate structures over a substrate; providing a first gate cut region across the first gate structure, and a second gate cut region across the second gate structure; providing a first gate contact over the first gate structure, and a second gate contact over the second gate structure; and providing a diffusion contact structure between the first and second gate cut regions to couple the first gate contact to the second gate contact.Type: ApplicationFiled: July 30, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Mahbub Rashed, Marc Tarabbia, Chinh Nguyen, David Doman, Juhan Kim, Xiang Qi, Suresh Venkatesan
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Publication number: 20140026676Abstract: Generally, the subject matter herein relates to detecting the presence of weak BEOL sites in a metallization system. One disclosed method includes performing a lateral force test on a pillar bump formed above a metallization system of a semiconductor chip, which includes contacting the pillar bump with a test probe while moving the test probe at a substantially constant speed that is less than approximately 1 ?m/sec along a path that is oriented at a substantially non-zero angle relative to a plane of the metallization system. Furthermore, the test probe is moving substantially away from the metallization system so that a force imposed on the pillar bump by the test probe has an upward component that induces a tensile load on the metallization system. The disclosed method also includes determining a behavioral interaction between the pillar bump and the metallization system during the lateral force test.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Vivian W. Ryan, Holm Geisler, Dirk Breuer
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Publication number: 20140027902Abstract: Generally, the subject matter disclosed herein relates to repairing anomalous stiff pillar bumps that may be detected above a metallization system of a semiconductor chip or wafer. One illustrative method disclosed herein includes, among other things, forming a pillar bump above a metallization system of a semiconductor chip, and forming a plurality of notches in the pillar bump, wherein the plurality of notches are adapted to adjust a flexibility of the pillar bump when the pillar bump is exposed to a lateral force.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Vivian W. Ryan, Holm Geisler, Dirk Breuer
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Publication number: 20140027825Abstract: When forming sophisticated multiple gate transistors and planar transistors in a common manufacturing sequence, the threshold voltage characteristics of the multiple gate transistors may be intentionally “degraded” by selectively incorporating a dopant species into corner areas of the semiconductor fins, thereby obtaining a superior adaptation of the threshold voltage characteristics of multiple gate transistors and planar transistors. In advantageous embodiments, the incorporation of the dopant species may be accomplished by using the hard mask, which is also used for patterning the self-aligned semiconductor fins.Type: ApplicationFiled: September 27, 2013Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Tim Baldauf, Andy Wei, Tom Herrmann, Stefan Flachowsky, Ralf Illgen
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Publication number: 20140030876Abstract: A method for fabricating an integrated circuit having a FinFET structure includes providing a semiconductor substrate comprising silicon and a high carrier mobility material, forming one or more fin structures on the semiconductor substrate, and subjecting the substrate to a condensation process for the condensation of the high carrier mobility material. The condensation process results in the formation of condensed fin structures formed substantially entirely of the high carrier mobility material and a layer of silicon oxide formed over the condensed fin structures. The method further includes removing the silicon oxide formed over the condensed fin structures so as to expose the condensed fin structures.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Stefan Flachowsky, Ralf Illgen
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Publication number: 20140027910Abstract: A method for forming an interconnect structure includes forming a recess in a dielectric layer of a substrate, forming a first transition metal layer in the recess on corner portions of the recess, and forming a second transition metal layer in the recess over the first transition metal layer to line the recess. The method further includes filling the recess with a fill layer and annealing the substrate so that the first transition metal layer and the second transition metal layer form an alloy portion proximate the corner portions during the annealing, the alloy portion having a reduced wettability for a material of the fill layer than the second transition metal. Additionally, the method includes polishing the substrate to remove portions of the fill layer extending above the recess.Type: ApplicationFiled: July 30, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Xunyuan Zhang, Hoon Kim, Vivian W. Ryan
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Publication number: 20140030637Abstract: In one example, a reticle disclosed herein includes a body having a center, an arrangement of a plurality of exposure patterns, wherein a center of the arrangement is offset from the center of the body, and at least one open feature defined on or through the body of the reticle. In another example, a method is disclosed that includes forming a layer of photoresist above a plurality of functional die and a plurality of incomplete die, exposing the photoresist material positioned above at least one of the functional die and/or at least one of the incomplete die, performing an incomplete die exposure processes via an open feature of the reticle to expose substantially all of the photoresist material positioned above the plurality of incomplete die, and developing the photoresist to remove the portions of the photoresist material positioned above the incomplete die.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Martin Mazur, Henke Dietmar, Hans-Juergen Thees
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Patent number: 8637214Abstract: Methods are provided for fabricating a semiconductor device. One method comprises providing a first pattern having a first polygon, the first polygon having a first tonality and having a first side and a second side, the first side adjacent to a second polygon having a second tonality, and the second side adjacent to a third polygon having the second tonality, and forming a second pattern by reversing the tonality of the first pattern. The method further comprises forming a third pattern from the second pattern by converting the second polygon from the first tonality to the second tonality forming a fourth pattern from the second pattern by converting the third polygon from the first tonality to the second tonality forming a fifth pattern by reversing the tonality of the third pattern, and forming a sixth pattern by reversing the tonality of the fourth pattern.Type: GrantFiled: December 21, 2012Date of Patent: January 28, 2014Assignee: GLOBALFOUNDRIES, Inc.Inventors: Yunfei Deng, Jongwook Kye
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Patent number: 8637372Abstract: Methods are provided for fabricating a FINFET integrated circuit that includes epitaxially growing a first silicon germanium layer and a second silicon layer overlying a silicon substrate. The second silicon layer is etched to form a silicon fin using the first silicon germanium layer as an etch stop. The first silicon germanium layer underlying the fin is removed to form a void underlying the fin and the void is filled with an insulating material. A gate structure is then formed overlying the fin.Type: GrantFiled: June 29, 2011Date of Patent: January 28, 2014Assignee: Globalfoundries, Inc.Inventors: Yanxiang Liu, Xiaodong Yang, Jinping Liu
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Patent number: 8639992Abstract: The soft error rate (SER) detector circuit presented here can be used to measure SER in combinatorial logic devices caused by radiation. The SER detector circuit includes a plurality of detector arrays coupled in series, and each having a plurality of SER test structures coupled in series. Each of the SER test structures includes a plurality of detector elements coupled in series. Each of the SER test structures is configured to detect single event transients (SETs) in a first operating mode and single event upsets (SEUs) in a second operating mode. The SER detector circuit also has control logic elements to control operation of the plurality of detector arrays.Type: GrantFiled: May 16, 2011Date of Patent: January 28, 2014Assignee: Globalfoundries, Inc.Inventors: Christian Haufe, Jens Pika, Jörg Winkler
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Patent number: 8637993Abstract: A method of forming an integrated circuit device includes providing a substrate including an active device, forming a through silicon via into the substrate, forming a device contact to the active device, forming a conductive layer over the through silicon via and the device contact, and forming a connecting via structure for electrically connecting the conductive layer with the through silicon via. An integrated circuit device includes a through silicon via formed into a substrate silicon material, a conductive layer formed over the through silicon via, and a connecting via structure formed between the conductive layer and the through silicon via for electrically connecting the conductive layer with the through silicon via. The connecting via structure comprises a first series of via bars intersected with a second series of via bars.Type: GrantFiled: April 23, 2012Date of Patent: January 28, 2014Assignee: GLOBALFOUNDRIES, Inc.Inventors: Chun Yu Wong, Ramakanth Alapati, Teck Jung Tang
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Publication number: 20140024213Abstract: Processes for forming an integrated circuit are provided. In an embodiment, a process for forming an integrated circuit includes forming a low-k dielectric layer overlying a base substrate. An etch mask is patterned over the low-k dielectric layer. A recess is etched into the low-k dielectric layer through the etch mask to expose a recess surface within the recess. The low-k dielectric layer and the base substrate are annealed after etching. Annealing is conducted in an annealing environment, such as in an annealing furnace that provides the annealing environment. The recess surface is exposed to the annealing environment. An electrically-conductive material is deposited in the recess after annealing to form an embedded electrical interconnect.Type: ApplicationFiled: July 18, 2012Publication date: January 23, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Bernd Hintze, Frank Koschinsky, Uwe Stoeckgen
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Publication number: 20140024212Abstract: A method for forming an interconnect structure includes forming a recess in a dielectric layer of a substrate. An adhesion barrier layer is formed to line the recess. A first stress level is present across a first interface between the adhesion barrier layer and the dielectric layer. A stress-reducing barrier layer is formed over the adhesion barrier layer. The stress-reducing barrier layer reduces the first stress level to provide a second stress level, less than the first stress level, across a second interface between the adhesion barrier layer, the stress-reducing barrier layer, and the dielectric layer. The recess is filled with a fill layer.Type: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Vivian W. Ryan, Xunyuan Zhang, Paul R. Besser
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Publication number: 20140021613Abstract: A method for forming an interconnect structure includes forming a recess in a dielectric layer of a substrate. An adhesion barrier layer is formed to line the recess. A first stress level is present across a first interface between the adhesion barrier layer and the dielectric layer. A stress-reducing barrier layer is formed over the adhesion barrier layer. The stress-reducing barrier layer reduces the first stress level to provide a second stress level, less than the first stress level, across a second interface between the adhesion barrier layer, the stress-reducing barrier layer, and the dielectric layer. The recess is filled with a fill layer.Type: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Vivian W. Ryan, Xunyuan Zhang, Paul R. Besser
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Publication number: 20140021579Abstract: Methods of fabricating an integrated circuit with a fin-based fuse, and the resulting integrated circuit with a fin-based fuse are provided. In the method, a fin is created from a layer of semiconductor material and has a first end and a second end. The method provides for forming a conductive path on the fin from its first end to its second end. The conductive path is electrically connected to a programming device that is capable of selectively directing a programming current through the conductive path to cause a structural change in the conductive path to increase resistance across the conductive path.Type: ApplicationFiled: September 20, 2013Publication date: January 23, 2014Applicant: GLOBALFOUNDRIES, Inc.Inventors: Randy W. Mann, Kingsuk Maitra, Anurag Mittal
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Publication number: 20140021604Abstract: Disclosed herein is a device that includes first and second spaced-apart conductive pads positioned in a layer of insulating material, first and second under-bump metallization layers that are conductively coupled to the first and second conductive pads, respectively, and first and second spaced-apart conductive bumps that are conductively coupled to the first and second under-bump metallization layers, respectively. Additionally, the device includes, among other things, a passivation layer positioned above the layer of insulating material between the first and second spaced-apart conductive bumps, and a protective layer positioned on the passivation layer, wherein the protective layer extends between and contacts the first and second under-bump metallization layers, the material of the protective layer being one of silicon dioxide, silicon oxyfluoride (SiOF), silicon nitride (SiN), and silicone carbon nitride (SiCN).Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: GLOBALFOUNDRIES Inc.Inventors: Frank Kuechenmeister, Lothar Lehmann, Alexander Platz, Gotthard Jungnickel, Sven Kosgalwies
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Publication number: 20140015055Abstract: A method is disclosed for fabricating an integrated circuit in a replacement-gate process flow utilizing a dummy-gate structure overlying a plurality of fin structures. The method includes removing the dummy-gate structure to form a first void space, depositing a shaper material to fill the first void space, removing a portion of the plurality of fin structures to form a second void space, epitaxially growing a high carrier mobility material to fill the second void space, removing the shaper material to form a third void space, and depositing a replacement metal gate material to fill the third void space.Type: ApplicationFiled: July 10, 2012Publication date: January 16, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Stefan Flachowsky, Ralf Illgen, Jan Hoentschel
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Publication number: 20140017903Abstract: Methods for fabricating integrated circuits are provided. In an embodiment, a method for fabricating an integrated circuit includes providing a semiconductor substrate having a first surface. In the method, a stress is applied to the semiconductor substrate to change inter-atomic spacing at the first surface of the semiconductor substrate to a stressed inter-atomic spacing. Then, the semiconductor substrate is processed. Thereafter, the stress is released and the first surface of the processed semiconductor substrate retains the stressed inter-atomic spacing.Type: ApplicationFiled: July 10, 2012Publication date: January 16, 2014Applicant: GLOBALFOUNDRIES INC.Inventors: Abner Bello, Abhijeet Paul