Deposition Of Noninsulating, E.g., Conductive -, Resistive -, Layer On Insulating Layer (epo) Patents (Class 257/E21.495)
  • Patent number: 7651907
    Abstract: A method for fabricating a semiconductor device, the method includes forming an etch stop layer and an insulation layer over a substrate having a first region and a second region, selectively removing the insulation layer and the etch stop layer in the first region to expose parts of the substrate, thereby forming at least two electrode regions on the exposed substrate and a resultant structure, forming a conductive layer over the resultant structure, removing the conductive layer in the second region, removing the insulation layer in the first region and the second region by using wet chemicals, and removing parts of the conductive layer, which formed between the at least two electrode regions in the first region, to form cylinder type electrodes in the first region.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: January 26, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Jun-Hee Cho
  • Publication number: 20100013107
    Abstract: Semiconductor devices comprise at least one integrated circuit layer, at least one conductive trace and an insulative material adjacent at least a portion of the at least one conductive trace. At least one interconnect structure extends through a portion of the at least one conductive trace and a portion of the insulative material, the at least one interconnect structure comprising a transverse cross-sectional dimension through the at least one conductive trace which differs from a transverse cross-sectional dimension through the insulative material. Methods of forming semiconductor devices comprising at least one interconnect structure are also disclosed.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 21, 2010
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Gurtej S. Sandhu, Nishant Sinha, John A. Smythe
  • Publication number: 20100013099
    Abstract: A mechanically stable diffusion barrier stack structure and method of fabricating the same is disclosed. The fusion barrier stack structure having a molybdenum nitride layer deposited on a molybdenum layer and operates to prevent diffusion between a semiconductor layer and a metal interconnect. The method for fabricating includes depositing a molybdenum layer outwardly from the semiconductor layer in a deposition chamber, and depositing a molybdenum nitride layer outwardly from the molybdenum layer in the deposition chamber.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Inventors: Haluk Sankur, Mason Thomas
  • Publication number: 20100015798
    Abstract: A method for integrating ruthenium (Ru) metal cap layers and modified Ru metal cap layers into copper (Cu) metallization of semiconductor devices to improve electromigration (EM) and stress migration (SM) in bulk Cu metal. In one embodiment, the method includes providing a planarized patterned substrate containing a Cu metal surface and a dielectric layer surface, depositing first Ru metal on the Cu metal surface, and depositing additional Ru metal on the dielectric layer surface, where the amount of the additional Ru metal is less than the amount of the first Ru metal. The method further includes at least substantially removing the additional Ru metal from the dielectric layer surface to improve the selective formation of a Ru metal cap layer on the Cu metal surface. Other embodiments further include incorporating one or more types of modifier elements into the dielectric layer surface, the Cu metal surface, the Ru metal cap layer, or a combination thereof.
    Type: Application
    Filed: July 15, 2008
    Publication date: January 21, 2010
    Applicant: Tokyo Electron Limited
    Inventors: Kenji Suzuki, Frank M. Cerio, JR., Miho Jomen, Shigeru Mizuno, Yasushi Mizusawa, Tadahiro Ishizaka
  • Publication number: 20100013102
    Abstract: A semiconductor device has a conductive via formed around a perimeter of the semiconductor die. First and second conductive layers are formed on opposite sides of the semiconductor die and thermally connected to the conductive via. An insulating layer is formed over the semiconductor die. A portion of the insulating layer is removed to expose the first conductive layer and a thermal dissipation region of semiconductor die. A thermal via is formed through the insulating layer to the first conductive layer. A thermally conductive layer is formed over the thermal dissipation region and thermal via. A thermal conduction path is formed from the thermal dissipation region through the thermally conductive layer, thermal via, first conductive layer, conductive via, and second conductive layer. The thermal conduction path terminates in an external thermal ground point. The thermally conductive layer provides shielding for electromagnetic interference.
    Type: Application
    Filed: July 15, 2008
    Publication date: January 21, 2010
    Applicant: STATS CHIPPAC, LTD.
    Inventors: Lionel Chien Hui Tay, Govindiah G. Badakere, Zigmund R. Camacho
  • Publication number: 20100006955
    Abstract: A semiconductor device manufacturing method includes the steps of: successively forming, on a semiconductor substrate, a gate insulating film and first and second dummy sections stacked in this order; forming a notch section by processing the gate insulating film and the first and second dummy gate sections into a previously set pattern and making the first dummy gate section move back in the gate length direction relative to the second dummy gate section; forming a side wall of an insulating material in a side part of each of the gate insulating film and the first and second dummy gate sections and embedding the notch section therewith; removing the first and second dummy gate sections to leave the gate insulating film and the notch section in the bottom of a removed portion; and forming a gate electrode made of a conductive material by embedding the removed portion with the conductive material.
    Type: Application
    Filed: June 2, 2009
    Publication date: January 14, 2010
    Applicant: Sony Corporation
    Inventor: Kaori TAKIMOTO
  • Publication number: 20100001405
    Abstract: An integrated circuit and corresponding method of manufacture. The integrated circuit has a die comprising: an outer strengthening ring around a periphery of the die, the outer ring having one or more gaps; and an inner strengthening ring within the outer ring and around interior circuitry of the die, the inner ring having one or more gaps offset from the gaps of the outer ring. One or more conducting members are electrically isolated from said rings and electrically connected to the interior circuitry, each member passing through a gap of the inner ring and through a gap of the outer ring.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 7, 2010
    Applicant: XMOS Ltd.
    Inventors: Ken Williamson, Michael David May, Simon Christopher Dequin Clemow
  • Publication number: 20090321941
    Abstract: Embodiments of a phase-stable amorphous high-? dielectric layer in a device and methods for forming the phase-stable amorphous high-? dielectric layer in a device are generally described herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 31, 2009
    Inventors: Matthew Metz, Gilbert Dewey
  • Publication number: 20090325377
    Abstract: The present invention relates to a process for producing a carbon nanotube (CNT) mat (580) on a conductive or semiconductor substrate (510). According to this process, a catalytic complex (530,570) comprising at least one metal layer (570) is firstly deposited on said substrate. Said metal layer then undergoes an oxidizing treatment. Finally, carbon nanotubes are grown from the metal layer thus oxidized. The present invention also relates to a process for producing a via using said CNT mat production process.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Applicant: Commissariat A L'Energie Atomique
    Inventors: Jean DiJon, Adeline Fournier
  • Publication number: 20090321934
    Abstract: A semiconductor device comprising an insulator layer formed on a substrate; a via formed by etching into the insulator layer to a first depth; a first metal layer formed over the insulator layer; a second metal layer deposited on the first metal layer to substantially fill the via; a metal-dopant alloy layer deposited over the second metal, wherein the dopant is diffused by annealing through the second metal layer and the first metal layer deposited in the via, such that the dopant migrates to a boundary between the first metal layer and the insulator to form a barrier; and an etch stop layer deposited over the via after planarization of the via and the insulator layer to form a barrier cap.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: Adrien R. Lavoie, Florian Gstrein
  • Publication number: 20090321805
    Abstract: One embodiment relates to an integrated circuit that includes a conductive line that is arranged in a groove in a semiconductor body. An insulating material is disposed over the conductive line. This insulating material includes a first insulating layer comprising a horizontal portion, and a second insulating layer that is disposed over the first insulating layer. Other methods, devices, and systems are also disclosed.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Applicant: Qimonda AG
    Inventors: Johannes von Kluge, Arnd Scholz, Joerg Radecker, Matthias Patz, Stephan Kudelka, Alejandro Avellan
  • Publication number: 20090321933
    Abstract: Improved high aspect ratio vias and techniques for the formation thereof are provided. In one aspect, a method of fabricating a copper plated high aspect ratio via is provided. The method comprises the following steps. A high aspect ratio via is etched in a dielectric layer. A diffusion barrier layer is deposited into the high aspect ratio via and over one or more surfaces of the dielectric layer. A copper layer is deposited over the diffusion barrier layer. A ruthenium layer is deposited over the copper layer. The high aspect ratio via is filled with copper plated onto the ruthenium layer. A copper plated high aspect ratio via formed by this method is also provided.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Applicant: International Business Machines Corporation
    Inventors: Fenton R. McFeely, Chih-Chao Yang
  • Publication number: 20090317970
    Abstract: A method for forming an on-chip high frequency electro-static discharge device on an integrated circuit is described. In one embodiment of the method, a capped first dielectric layer with more than one electrode formed therein is provided. A second dielectric layer is deposited over the capped first dielectric layer. A first hard mask dielectric layer is deposited over the second dielectric layer. A cavity trench is formed through the first hard mask dielectric layer and the second dielectric layer to the first dielectric layer, wherein the cavity trench is formed in the first dielectric layer between two adjacent electrodes. At least one via is formed through the second dielectric layer about the cavity trench. A metal trench is formed around each of the at least one via. A release opening is formed over the cavity trench.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Inventors: Hanyi Ding, Kai D. Feng, Zhong-Xiang He, Xuefeng Liu, Anthony K. Stamper
  • Publication number: 20090311841
    Abstract: A method for forming a through-silicon via bandpass filter includes forming a substrate comprising a silicon layer and providing a metal layer on a bottom side of the silicon layer. Additionally, the method includes providing a dielectric layer on a top side of the silicon layer and forming a top-side interconnect of the through-silicon via bandpass filter on a surface of the dielectric layer. Further, the method includes forming a plurality of contacts in the dielectric layer in contact with the top-side interconnect and forming a plurality through-silicon vias through the substrate and in contact with the plurality of contacts, respectively, and the metal layer.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 17, 2009
    Inventors: Amit Bavisi, Hanyi Ding, Guoan Wang, Wayne H. Woods, JR., Jiansheng Xu
  • Publication number: 20090298279
    Abstract: In a manufacturing sequence for forming metallization levels of semiconductor devices, out-gassing of volatile components after an etch process may be initiated immediately after the etch process, thereby reducing the probability of creating contaminants in other substrates and transport carriers during transport activities. Consequently, the defect rate of deposition-related irregularities in the metallization level may be reduced.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 3, 2009
    Inventors: Frank Feustel, Kai Frohberg, Thomas Werner
  • Publication number: 20090294986
    Abstract: Methods of forming features and structures thereof are disclosed. In one embodiment, a method of forming a feature includes forming a first material over a workpiece, forming a first pattern for a lower portion of the feature in the first material, and filling the first pattern with a sacrificial material. A second material is formed over the first material and the sacrificial material, and a second pattern for an upper portion of the feature is formed in the second material. The sacrificial material is removed. The first pattern and the second pattern are filled with a third material.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Inventors: Jiang Yan, Roland Hampp, Jin-Ping Han, Manfred Eller, Alois Gutmann
  • Publication number: 20090294831
    Abstract: Some embodiments include methods of forming charge storage transistor gates and standard FET gates in which common processing is utilized for fabrication of at least some portions of the different types of gates. FET and charge storage transistor gate stacks may be formed. The gate stacks may each include a gate material, an insulative material, and a sacrificial material. The sacrificial material is removed from the FET and charge storage transistor gate stacks. The insulative material of the FET gate stacks is etched through. A conductive material is formed over the FET gate stacks and over the charge storage transistor gate stacks. The conductive material physically contacts the gate material of the FET gate stacks, and is separated from the gate material of the charge storage transistor gate stacks by the insulative material remaining in the charge storage transistor gate stacks. Some embodiments include gate structures.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 3, 2009
    Inventor: Yongjun Jeff Hu
  • Publication number: 20090289368
    Abstract: An interconnect structure having improved electromigration (EM) reliability is provided. The inventive interconnect structure avoids a circuit dead opening that is caused by EM failure by incorporating a EM preventing liner at least partially within a metal interconnect. In one embodiment, a “U-shaped” EM preventing liner is provided that abuts a diffusion barrier that separates conductive material from the dielectric material. In another embodiment, a space is located between the “U-shaped” EM preventing liner and the diffusion barrier. In yet another embodiment, a horizontal EM liner that abuts the diffusion barrier is provided. In yet a further embodiment, a space exists between the horizontal EM liner and the diffusion barrier.
    Type: Application
    Filed: August 3, 2009
    Publication date: November 26, 2009
    Applicant: International Business Machines Corporation
    Inventors: Chih-Chao Yang, Ping-Chuan Wang, Yun-Yu Wang
  • Patent number: 7622762
    Abstract: A nonvolatile semiconductor memory includes a first semiconductor layer; second semiconductor regions formed on the first semiconductor layer having device isolating regions extended in a column direction; a first interlayer insulator film formed above the first semiconductor layer; a lower conductive plug connected to the second semiconductor regions; a first interconnect extended in a row direction; a second interlayer insulator formed on the lower conductive plug and the first interlayer insulator film; an upper conductive plug; and a second interconnect formed on the second interlayer insulator contacting with the top of the upper conductive plug extended in the column direction.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 24, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Minori Kajimoto, Mitsuhiro Noguchi, Akira Goda
  • Publication number: 20090283907
    Abstract: Devices and methods for providing low-resistance interconnects in a semiconductor device are provided. Specifically, one or more embodiments of the present invention relate to disposing a conductive material in a trench without disposing a resistive barrier material between the conductive material and the sidewalls of the trench so that the conductive material takes up the full width of the trench. For example, the trench may be disposed over one or more contacts made of a barrier material such as titanium nitride that also acts as a seed, and the conductive material may be grown on top of the titanium nitride to fill the trench.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 19, 2009
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Jaydeb Goswami, Allen McTeer
  • Publication number: 20090278173
    Abstract: An integrated circuit memory device, in one embodiment, includes a substrate having a plurality of bit lines. A first and second inter-level dielectric layer are successively disposed on the substrate. Each of a plurality of source lines and staggered bit line contacts extend through the first inter-level dielectric layer. Each of a plurality of source line vias and a plurality of staggered bit line vias extend through the second inter-level dielectric layer to each respective one of the plurality of source lines and the plurality of staggered bit line contacts. The source lines and staggered bit line contacts that extend through the first inter-level dielectric layer are formed together by a first set of fabrication processes. The source line vias and staggered bit line contacts that extend through the second inter-level dielectric layer are also formed together by a second set of fabrication processes.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Inventors: Shenqing FANG, Connie WANG, Wen YU, Fei WANG
  • Publication number: 20090278260
    Abstract: An IC interconnect for high direct current (DC) that is substantially immune to electro-migration (EM) damage, a design structure of the IC interconnect and a method of manufacture of the IC interconnect is provided. The structure has electro-migration immunity and redundancy of design, which includes a plurality of wires laid out in parallel and each of which are coated with a liner material. Two adjacent of the wires are physically contacted to each other.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis L. Hsu, Conal E. Murray, Ping-Chuan Wang, Chih-Chao Yang
  • Patent number: 7615482
    Abstract: Disclosed is a structure and method for forming a structure including a SiCOH layer having increased mechanical strength. The structure includes a substrate having a layer of dielectric or conductive material, a layer of oxide on the layer of dielectric or conductive material, the oxide layer having essentially no carbon, a graded transition layer on the oxide layer, the graded transition layer having essentially no carbon at the interface with the oxide layer and gradually increasing carbon towards a porous SiCOH layer, and a porous SiCOH (pSiCOH) layer on the graded transition layer, the porous pSiCOH layer having an homogeneous composition throughout the layer. The method includes a process wherein in the graded transition layer, there are no peaks in the carbon concentration and no dips in the oxygen concentration.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: November 10, 2009
    Assignees: International Business Machines Corporation, Applied Materials, Inc.
    Inventors: Daniel C. Edelstein, Alexandros Demos, Stephen M. Gates, Alfred Grill, Steven E. Molis, Vu Ngoc Tran Nguyen, Steven Reiter, Darryl D. Restaino, Kang Sub Yim
  • Publication number: 20090273036
    Abstract: By incorporating nitrogen into the P-doped regions and N-doped regions of the gate electrode material prior to patterning the gate electrode structure, yield losses due to reactive wet chemical cleaning processes may be significantly reduced.
    Type: Application
    Filed: March 4, 2009
    Publication date: November 5, 2009
    Inventors: Manfred Horstmann, Peter Javorka, Karsten Wieczorek, Kerstin Ruttloff
  • Publication number: 20090273084
    Abstract: A structure and a method. The method includes: forming a dielectric layer on a substrate; forming electrically conductive first and second wires in the dielectric layer, top surfaces of the first and second wires coplanar with a top surface of the dielectric layer; and either (i) forming an electrically conductive third wire on the top surface of the dielectric layer, and over the top surfaces of the first and second wires, the third wire electrically contacting each of the first and second wires, the third wire not detectable by optical microscopy or (ii) forming an electrically conductive third wire between the top surface of the dielectric layer and the substrate, the third wire electrically contacting each of the first and second wires, the third wire not detectable by optical microscopy.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 5, 2009
    Inventors: Stephen Peter Ayotte, Jeffrey Peter Gambino, Timothy Dooling Sullivan, Kimball M. Watson
  • Patent number: 7612452
    Abstract: A method for manufacturing a semiconductor device includes: the first step of forming, in an insulating film provided on a substrate, a recess that is porositized at least at inner walls; the second step of forming an alloy layer made of copper and a metal other than copper so as to cover the inner walls of the recess; the third step of burying a conductive layer made primarily of copper in the recess provided with the alloy layer; the fourth step of subjecting the thus treated substrate to thermal treatment to cause the metal in the alloy layer to react with a constituent component of the insulating film to form a barrier film made of a metal compound having Cu diffusion barrier properties.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: November 3, 2009
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Ohba, Toshihiko Hayashi
  • Publication number: 20090261420
    Abstract: A method of forming a semiconductor device is provided, comprising forming a plurality of hard masks on a substrate by patterning an insulating layer; forming a plurality of trenches in the substrate, each trench having trench walls disposed between two adjacent masks and extending vertically from a bottom portion to an upper portion; forming an insulating layer on the hard masks and the trench walls; forming a conductive layer on the insulating layer; etching the conductive layer to form conductive layer patterns to fill the bottom portions of the trenches; depositing a buffer layer on the conductive layer patterns and the trench walls; and filling the upper portions of the trenches with a capping layer.
    Type: Application
    Filed: December 11, 2008
    Publication date: October 22, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ho-In Ryu, Bong-Su Kim, Dae-Ik Kim, Ho-Jun Lee, Dae-Young Jang, Si-Hyung Lee
  • Publication number: 20090258487
    Abstract: A method for forming an integrated circuit structure includes providing a semiconductor substrate; forming a low-k dielectric layer over the semiconductor substrate; generating hydrogen radicals using a remote plasma method; performing a first hydrogen radical treatment to the low-k dielectric layer using the hydrogen radicals; forming an opening in the low-k dielectric layer; filling the opening with a conductive material; and performing a planarization to remove excess conductive material on the low-k dielectric layer.
    Type: Application
    Filed: April 14, 2008
    Publication date: October 15, 2009
    Inventors: Keng-Chu Lin, Chia-Cheng Chou, Chung-Chi Ko, Ching-Hua Hsieh, Cheng-Lin Huang, Shwang-Ming Jeng
  • Patent number: 7601638
    Abstract: A method for manufacturing a semiconductor device includes forming, on a substrate having a recessed portion on a surface, a plating film which is at least buried in the recessed portion and has a higher impurity concentration in an upper portion than in a lower portion, thermally treating the plating film, and removing the thermally treated plating film except for a portion buried in the recessed portion.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: October 13, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Hasunuma, Hisashi Kaneko, Hiroshi Toyoda
  • Publication number: 20090253242
    Abstract: A method of fabricating a non-volatile memory device includes: forming a tunnel insulation layer pattern and a floating gate electrode layer pattern over a semiconductor substrate; forming an isolation trench by etching an exposed portion of the semiconductor substrate so that the isolation trench is aligned with the tunnel insulation layer pattern and the floating gate electrode layer pattern; forming an isolation layer by filling the isolation trench with a filling insulation layer; forming a hafnium-rich hafnium silicon oxide layer over the isolation layer and the floating gate electrode layer pattern; forming a hafnium-rich hafnium silicon oxynitride layer by carrying out a first nitridation on the hafnium-rich hafnium silicon oxide layer; forming a silicon-rich hafnium silicon oxide layer over the hafnium-rich hafnium silicon oxynitride layer; forming a silicon-rich hafnium silicon oxynitride layer by carrying out a second nitridation on the silicon-rich hafnium silicon oxide layer; and forming a control
    Type: Application
    Filed: December 30, 2008
    Publication date: October 8, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Moon Sig Joo, Heung Jae Cho, Yong Soo Kim, Won Joon Choi
  • Publication number: 20090243113
    Abstract: A fusible link between metallization layers of a semiconductor device comprises a tungsten plug deposited in a via interconnecting two aluminum metallization layers.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: ANDIGILOG, INC.
    Inventors: Derrick Tuten, David L. Cave
  • Publication number: 20090243104
    Abstract: Embodiments of an apparatus and methods for forming thick metal interconnect structures for integrated structures are generally described herein. Other embodiments may be described and claimed.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Inventor: Kevin Lee
  • Publication number: 20090242945
    Abstract: In a method of fabricating a semiconductor device on a substrate having a pillar pattern, a gate electrode is formed on the pillar pattern without etching the latter. A conductive pattern is filled between adjacent pillar patterns, a spacer is formed above the conductive pattern and surrounding sidewalls of each pillar pattern, and the gate electrode is formed by etching the conductive pattern using the spacer as an etch barrier.
    Type: Application
    Filed: December 23, 2008
    Publication date: October 1, 2009
    Applicant: Hynix Semiconductor Inc.
    Inventors: Yun-Seok Cho, Sang-Hoon Park, Young-Kyun Jung, Chun-Hee Lee
  • Publication number: 20090243112
    Abstract: A copper interconnection structure includes an insulating layer, an interconnection and a barrier layer. The insulating layer includes silicon (element symbol: Si), carbon (element symbol: C), hydrogen (element symbol: H) and oxygen (element symbol: O). The interconnection is located on the insulating layer, and the interconnection includes copper (element symbol: Cu). The barrier layer is located between the insulating layer and the interconnection. The barrier layer includes an additional element, carbon (element symbol: C) and hydrogen (element symbol: H). The barrier layer has atomic concentrations of carbon (element symbol: C) and hydrogen (element symbol: H) maximized in a region of a thickness of the barrier layer where the atomic concentration of the additional element is maximized.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Applicants: Advanced Interconnecte Materials, LLC, Tohoku University
    Inventors: Junichi Koike, Akihiro Shibatomi
  • Publication number: 20090239374
    Abstract: Methods of forming devices include forming a first electrically insulating layer having a metal interconnection therein, on a substrate and then forming a first electrically insulating barrier layer on an upper surface of the metal interconnection and on the first electrically insulating layer. The first electrically insulating barrier layer is exposed to a plasma that penetrates the first electrically insulating barrier and removes oxygen from an upper surface of the metal interconnection. The barrier layer may have a thickness in a range from about 5 ? to about 50 ? and the plasma may be a hydrogen-containing plasma that converts oxygen on the upper surface of the metal interconnection to water.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 24, 2009
    Inventors: Jae hak Kim, Griselda Bonilla, Steven E. Molis, Darryl D. Restaino, Hosadurga Shobha, Johnny Widodo
  • Publication number: 20090237982
    Abstract: Techniques for shielding magnetic memory cells from magnetic fields are presented. In accordance with aspects of the invention, a magnetic storage element is formed with at least one conductive segment electrically coupled to the magnetic storage element. At least a portion of the conductive segment is surrounded with a magnetic liner. The magnetic liner is operative to divert at least a portion of a magnetic field created by a current passing through the conductive segment away from the magnetic storage element.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 24, 2009
    Inventors: Solomon Assefa, Sivananda K. Kanakasabapathy, Janusz Jozef Nowak, Philip L. Trouilloud
  • Publication number: 20090233434
    Abstract: In semiconductor devices and methods of manufacturing semiconductor devices, a zirconium source having zirconium, carbon and nitrogen is provided onto a substrate to form an adsorption layer of the zirconium source on the substrate. A first purging process is performed to remove a non-adsorbed portion of the zirconium source. An oxidizing gas is provided onto the adsorption layer to form an oxidized adsorption layer of the zirconium source on the substrate. A second purging process is performed to remove a non-reacted portion of the oxidizing gas. A nitriding gas is provided on the oxidized adsorption layer to form a zirconium carbo-oxynitride layer on the substrate, and a third purging process is provided to remove a non-reacted portion of the nitriding gas.
    Type: Application
    Filed: March 10, 2009
    Publication date: September 17, 2009
    Inventors: Weon-Hong KIM, Min-woo Song, Pan-Kwi Park, Jung-Min Park
  • Publication number: 20090230375
    Abstract: A semiconductor device is provided which includes a substrate having a dielectric layer formed thereon, a heating element formed in the dielectric layer, a phase change element formed on the heating element, and a conductive element formed on the phase change element. The phase change element includes a substantially amorphous background and an active region, the active region capable of changing phase between amorphous and crystalline.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 17, 2009
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chun-Sheng Liang, Tzyh-Cheang Lee, Fu-Liang Yang
  • Publication number: 20090224307
    Abstract: A semiconductor device and method of fabricating the same. In an aspect of the inventive method, a tunnel insulating layer, a first conductive layer, a dielectric layer, a second conductive layer, and a gate electrode layer are sequentially stacked over a semiconductor substrate. The gate electrode layer is patterned in order to expose the second conductive layer. A passivation layer is formed on sidewalls of the gate electrode layer. Gate patterns are formed by etching the exposed second conductive layer, the dielectric layer, and the first conductive layer using the passivation layer as a mask.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Byung In Lee, Young Bok Lee
  • Publication number: 20090227080
    Abstract: A method of fabricating a semiconductor device, in which although a metal layer is included in a gate pattern, the gap-fill characteristic of contact plugs coupled to junctions can be improved and degradation in the data retention characteristic can also be prevented. According to the method, a semiconductor substrate in which lower gate patterns and gate hard mask patterns are sequentially stacked is first provided. Junctions are formed in the semiconductor substrate on both sides of each of the lower gate patterns. A first pre-metal dielectric layer is formed over the semiconductor substrate in which the hard mask patterns and the junctions are formed. Contact holes through which the junctions are exposed are formed in the first pre-metal dielectric layer. Gate trenches through which the lower gate patterns are exposed are formed by removing the hard mask patterns. Upper gate patterns, each including a metal layer, are formed in the gate trenches, and first contact plugs are formed in the contact holes.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 10, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Yoo Nam Jeon
  • Publication number: 20090227098
    Abstract: There is provided a method of fabricating a semiconductor device in which a gate electrode is formed on an oxide film, which is formed by thermal oxidation on a substrate. The fabrication method includes: a first step of forming a first oxide film on the substrate; a second step of thermally processing the first oxide film in an inactive gas atmosphere; a third step of forming a second oxide film that is obtained by etching the first oxide film, which has been thermally processed in the inactive gas, to a predetermined film thickness; and a fourth step of forming and thermally processing a gate electrode on the second oxide film.
    Type: Application
    Filed: February 3, 2009
    Publication date: September 10, 2009
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Isamu Matsuyama
  • Publication number: 20090227099
    Abstract: In one embodiment, a method of forming a semiconductor device includes forming a first device region and a second device region over a substrate, wherein the first device region comprises a first region with a first dopant type, the second device region comprises a second region with a second dopant type, and the first dopant type is different than the second dopant type. The method also includes forming a stress layer over the first device region and the second device region, removing the stress layer from the second device region, and forming a first metal layer over the second device region while the stress layer is over the first device region.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Inventor: STEFAN ZOLLNER
  • Publication number: 20090225592
    Abstract: A multi-level lithography processes for the fabrication of suspended structures are presented. The process is based on the differential exposure and developing conditions of several a plurality of resist layers, without harsher processes, such as etching of sacrificial layers or the use of hardmasks. These manufacturing processes are readily suited for use with systems that are chemically and/or mechanically sensitive, such as graphene. Graphene p-n-p junctions with suspended top gates formed through these processes exhibit high mobility and control of local doping density and type. This fabrication technique may be further extended to fabricate other types of suspended structures, such as local current carrying wires for inducing local magnetic fields, a point contact for local injection of current, and moving parts in microelectromechanical devices.
    Type: Application
    Filed: March 3, 2009
    Publication date: September 10, 2009
    Applicant: The Regents of the University of California
    Inventors: Chun Ning Lau, Gang Liu, Jairo Velasco, JR.
  • Publication number: 20090218693
    Abstract: A semiconductor contact structure includes a copper plug formed within a dual damascene, single damascene or other opening formed in a dielectric material and includes a composite barrier layer between the copper plug and the sidewalls and bottom of the opening. The composite barrier layer preferably includes an ALD TaN layer disposed on the bottom and along the sides of the opening although other suitable ALD layers may be used. A barrier material is disposed between the copper plug and the ALD layer. The barrier layer may be a Mn-based barrier layer, a Cr-based barrier layer, a V-based barrier layer, a Nb-based barrier layer, a Ti-based barrier layer, or other suitable barrier layers.
    Type: Application
    Filed: April 30, 2008
    Publication date: September 3, 2009
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Hsiang-Huan Lee, Ming Han Lee, Ming-Shih Yeh, Chen-Hua Yu
  • Publication number: 20090218690
    Abstract: A feature is inscribed in a major surface of a microelectronic workpiece having a material property expressed as a reference coefficient value. The feature includes a first material having a first coefficient value for the material property and a second material having a second coefficient value for the material property. The first coefficient value is different from the reference coefficient value different from the first coefficient value and the second coefficient value is different from the first coefficient value. The first and second materials behave as an aggregate having an aggregate coefficient value for the material property between the first coefficient value and the reference coefficient value.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: Harry Hedler, Roland Irsigler, Rolf Weis, Detlef Weber
  • Publication number: 20090221144
    Abstract: Manufacturing methods for nano scale Ge include: Form dielectric layer on the substrate surface, then etch the dielectric layer to form openings of three different dimensions, then use chemical vapor deposition process to deposit Ge metal layer to cover the substrate, dielectric layer and the openings; then on the opening of three different dimensions, nano-dot, nano-disk and nano-ring are formed.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 3, 2009
    Inventors: Ming-Hsin Cheng, Shih-Chiang Huang, Wei-Xin Ni, Guang-Li Luo
  • Publication number: 20090215260
    Abstract: Methods of forming a barrier layer for an interconnection structure are provided. In one embodiment, a method for forming an interconnect structure includes providing a substrate having a first conductive layer disposed thereon, incorporating oxygen into an upper portion of the first conductive layer, depositing a first barrier layer on the first conductive layer, and diffusing the oxygen incorporated into the upper portion of the first conductive layer into a lower portion of the first barrier layer. In another embodiment, a method for forming an interconnection structure includes providing a substrate having a first conductive layer disposed thereon, treating an upper surface of the first conductive layer with an oxygen containing gas, depositing a first barrier layer on the treated conductive layer, and depositing a second conductive layer on the first barrier layer while driving a portion of oxygen atoms from the treated conductive layer into the first barrier layer.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 27, 2009
    Inventors: Chong Jiang, Anthony Chih-Tung Chan
  • Publication number: 20090212441
    Abstract: A semiconductor device is made by forming a first conductive layer over a substrate, forming a first passivation layer over the first conductive layer, forming a first via in the first passivation layer to expose the first conductive layer, forming a second conductive layer over the first passivation layer and within the first via to electrically connect to the first conductive layer, forming a second passivation layer over the second conductive layer, and forming a second via in the second passivation layer to expose the second conductive layer. The second via is smaller than the first via. The second via is either physically separate from or disposed over the first via. The second conductive layer within the second via has a flat surface which is wider than the second via. An under bump metallization is formed in the second via and electrically connected to the second conductive layer.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 27, 2009
    Applicant: STATS CHIPPAC, LTD.
    Inventor: Yaojian Lin
  • Publication number: 20090212436
    Abstract: A semiconductor structure and method for forming the same are provided. The semiconductor structure comprises a semiconductor substrate, a plurality of top metallizations on the semiconductor substrate, a high density plasma layer filling gaps between the top metallizations and having a substantially planar upper surface overlying the top metallizations, and a passivation layer overlying the high density plasma layer. A metal bump can be formed overlying the top metallizations through the passivation layer and HDPCVD layer for subsequent bonding.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Hsin-Chi Sun, Wen-Chung Chen, Chih-Cherng Liao, Sung-Min Wei
  • Publication number: 20090209096
    Abstract: A method for manufacturing a semiconductor device includes the steps of forming an insulation layer having a contact hole, on a semiconductor substrate, forming a Co layer on the insulation layer including a surface of the contact hole, conducting primary annealing to allow the Co layer and a portion of the semiconductor substrate to react with each other such that a CoSi layer is formed at an interface therebetween. The resultant semiconductor substrate is cleaned to remove a portion of the Co layer not having reacted in the primary annealing. A barrier layer is formed on the insulation layer, the CoSi layer, and the surface of the contact hole. A secondary annealing is conducted to convert the CoSi layer into a CoSi2 layer.
    Type: Application
    Filed: December 30, 2008
    Publication date: August 20, 2009
    Inventors: Nam Yeal LEE, Seung Jin YEOM, Baek Mann KIM, Dong Ha JUNG