At Least One Layer Of Molybdenum, Titanium, Or Tungsten Patents (Class 257/763)
  • Publication number: 20090102053
    Abstract: The method for forming a metal line stacking structure according to a preferred embodiment of the present invention comprises: sequentially forming a first barrier metal and a first metal layer on a lower dielectric layer that is disposed over a semiconductor substrate, and performing a plasma treatment; forming a second barrier metal on the plasma-treated first metal layer; selectively etching the second barrier metal, the first metal layer, and the first barrier metal to form a metal line layer including the second barrier metal, the first metal layer, and the first barrier metal, which respectively have a predetermined width; and sintering the metal line layer to raise a reaction between the first metal layer and the second barrier metal, thereby generating a metal compound layer.
    Type: Application
    Filed: December 22, 2008
    Publication date: April 23, 2009
    Applicant: DONGBUANAM SEMICONDUCTOR INC.
    Inventor: Jae-Won Han
  • Patent number: 7521801
    Abstract: A Ti barrier film and a TiN barrier film are formed between a top-level pad made of copper or an alloy film mainly composed of copper and an Al pad. The Ti barrier film is formed to have a greater thickness than the TiN barrier film.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: April 21, 2009
    Assignee: Panasonic Corporation
    Inventors: Koji Takemura, Hiroshige Hirano, Yutaka Itoh, Koji Koike
  • Patent number: 7511302
    Abstract: Multi-layered wiring for a larger flat panel display is formed by depositing molybdenum on a substrate in presence of a precursor gas containing at least one oxygen, nitrogen and carbon to form a molybdenum layer. An aluminum layer is deposited on the molybdenum layer. Another metal layer may be formed on the aluminum layer. The molybdenum layer has a face-centered cubic (FCC) lattice structure with a preferred orientation of (111).
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: March 31, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Jae-Kyeong Lee, Chang-Oh Jeong, Beom-Seok Cho
  • Patent number: 7508074
    Abstract: In accordance with one embodiment of the present invention, a semiconductor structure is provided comprising a poly-metal stack formed over a semiconductor substrate where the interface between an oxidation barrier placed over the stack and an oxidized portion of the stack lies along the sidewall of the poly. The present invention also relates to a memory cell array comprising an array of wordlines and digitlines arranged to access respective memory cells within the array. Respective wordlines comprise a poly-metal stack formed over a semiconductor substrate in accordance with the present invention. Additionally, the present invention relates to a computer system comprising a memory cell array of the present invention.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: March 24, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Vishnu K. Agarwal
  • Patent number: 7508075
    Abstract: A semiconductor structure is provided comprising a self-aligned poly-metal stack formed over a semiconductor substrate where the interface between an oxidation barrier placed over the stack and an oxidized portion of the stack lies along the sidewall of the poly-metal stack. A semiconductor structure is also provided where an etch stop layer is present in the poly region of the poly-metal stack. The present invention also relates more broadly to a memory cell array and a computer system including the poly-metal stack of the present invention.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: March 24, 2009
    Assignee: Micron Technology, Inc.
    Inventor: Vishnu K. Agarwal
  • Patent number: 7508077
    Abstract: A semiconductor device comprises: a semiconductor chip; a first frame; a solder layer which bonds the solder bonding metal layer of the semiconductor chip and the first frame; and a second frame bonded to the rear face of the semiconductor chip. The semiconductor chip includes: a semiconductor substrate; a first metal layer provided on a major surface of the semiconductor substrate and forming a Schottky junction with the semiconductor substrate; a second metal layer provided on the first metal layer and primarily composed of aluminum; a third metal layer provided on the second metal layer and primarily composed of molybdenum or titanium; and a solder bonding metal layer provided on the third metal layer and including at least a fourth metal layer which is primarily composed of nickel, ion or cobalt.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: March 24, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuru Watanabe, Tetsuya Fukui
  • Patent number: 7504728
    Abstract: An integrated circuit includes active circuitry and at least one bond pad. The at least one bond pad, in turn, comprises a metallization layer and a capping layer having one or more grooves. The metallization layer is in electrical contact with at least a portion of the active circuitry. In addition, the capping layer is formed over at least a portion of the metallization layer and is in electrical contact with the metallization layer. The grooves in the capping layer may be located only proximate to the edges of the bond pad or may run throughout the bond pad depending on the application.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: March 17, 2009
    Assignee: Agere Systems Inc.
    Inventor: Vivian Ryan
  • Publication number: 20090032957
    Abstract: A semiconductor device includes a lower structure, an insulation layer, metal contacts, a bridge and a metal pad. The lower structure has a metal wiring. An insulation layer is formed on the lower structure. The metal contacts penetrate the insulation layer to be connected to the metal wiring. The bridge is provided in the insulation layer, the bridge connecting the metal contacts to one another. The metal pad is provided on the insulation layer, the metal pad making contact with the metal contacts.
    Type: Application
    Filed: July 25, 2008
    Publication date: February 5, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jin-Man CHANG
  • Patent number: 7485578
    Abstract: Embodiments relate to a semiconductor device and a method of fabricating semiconductor device, that may uniformly form a barrier layer in a via hole to thus prevent layers from being broken. In embodiments, a method of fabricating a semiconductor device may include forming an interlayer dielectric layer on a substrate, forming via holes selectively on the interlayer dielectric layer, forming a first metal layer on a top surface of the substrate including inner portion of the via hole, forming spacers on sides of the via holes by etching back the first metal layer, forming a second metal layer on the substrate including the spacer, and forming a tungsten layer by depositing tungsten on the second metal layer.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: February 3, 2009
    Assignee: Dongbu HiTek Co. Ltd.
    Inventor: Keun Soo Park
  • Publication number: 20090014883
    Abstract: An integrated circuit system comprised by forming a first region, a second region and a third region within a dielectric over a substrate. The first region includes tungsten plugs. The second region is formed adjacent at least a portion of the perimeter of the first region and the third region is formed between the first region and the second region. An opening is formed in the third region and a material is deposited within the opening for preventing erosion of the first region.
    Type: Application
    Filed: September 23, 2008
    Publication date: January 15, 2009
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.
    Inventors: Dong Sheng Liu, Cing Gie Lim, Subbiah Chettiar Mahadevan, Feng Chen
  • Publication number: 20090014877
    Abstract: An interconnect structure with improved reliability is provided. The interconnect structure includes a semiconductor substrate; a dielectric layer over the semiconductor substrate; a metallic wiring in the dielectric layer; a pre-layer over the metallic wiring, wherein the pre-layer contains boron; and a metal cap over the pre-layer, wherein the metal cap contains tungsten, and wherein the pre-layer and the metal cap are formed of different materials.
    Type: Application
    Filed: July 9, 2007
    Publication date: January 15, 2009
    Inventors: Hui-Lin Chang, Yung-Cheng Lu, Syun-Ming Jang
  • Publication number: 20080303161
    Abstract: A method of manufacturing a semiconductor device includes: preparing a semiconductor element having a first metal layer made of first metal on a surface thereof, and a metal substrate made of second metal, the metal substrate having a fourth metal layer made of fourth metal on a surface thereof, and mounting the semiconductor element on the surface thereof; providing metal nanopaste between the first metal layer and the fourth metal layer, the metal nanopaste being formed by dispersing fine particles made of third metal with a mean diameter of 100 nm or less into an organic solvent; and heating, or heating and pressurizing the semiconductor element and the metal substrate between which the metal nanopaste is provided, thereby removing the solvent. Further, each of the first, third and fourth metals is made of any metal of gold, silver, platinum, copper, nickel, chromium, iron, lead, and cobalt, an alloy containing at least one of the metals, or a mixture of the metals or the alloys.
    Type: Application
    Filed: March 5, 2008
    Publication date: December 11, 2008
    Inventors: Kojiro Kobayashi, Akio Hirose, Masanori Yamagiwa
  • Patent number: 7459788
    Abstract: An ohmic electrode structure of a nitride semiconductor device having a nitride semiconductor. The ohmic electrode structure is provided with a first metal film formed on the nitride semiconductor and a second metal film formed on the first metal film. The first metal film is composed of at least one material selected from a group consisting of V, Mo, Ti, Nb, W, Fe, Hf, Re, Ta and Zr. The second metal film is composed of at least one material different from that of the first metal film (102), selected from a group consisting of V, Mo, Ti, Nb, W, Fe, Hf, Re, Ta, Zr, Pt and Au.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: December 2, 2008
    Assignee: NEC Corporation
    Inventors: Tatsuo Nakayama, Yuji Ando, Hironobu Miyamoto, Masaaki Kuzuhara, Yasuhiro Okamoto, Takashi Inoue, Koji Hataya
  • Publication number: 20080290523
    Abstract: A semiconductor device includes an interconnection layer provided on a substrate, a first insulating film provided on the substrate, and on the interconnection layer so as to coat the interconnection layer, the first insulating film includes a silicon oxide film, a second insulating film provided on the first insulating film, the second insulating film includes either a silicon oxynitride film or a silicon nitride film, and an insulative coating film provided on the second insulating film.
    Type: Application
    Filed: April 23, 2008
    Publication date: November 27, 2008
    Applicant: NEC ELECTRONICS CORPORATION
    Inventor: Chieri Teramoto
  • Patent number: 7443032
    Abstract: A titanium layer is formed on a substrate with chemical vapor deposition (CVD). First, a seed layer is formed on the substrate by combining a first precursor with a reducing agent by CVD. Then, the titanium layer is formed on the substrate by combining a second precursor with the seed layer by CVD. The titanium layer is used to form contacts to active areas of substrate and for the formation of interlevel vias.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: October 28, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej Singh Sandhu, Donald L. Westmoreland
  • Publication number: 20080217775
    Abstract: A method of forming a contact plug of an eDRAM device includes the following steps: forming a tungsten layer with tungsten seam on a dielectric layer to fill a contact hole; removing the tungsten layer from the top surface of the dielectric layer, recessing the tungsten layer in the contact hole to form a recess of about 600˜900 Angstroms in depth below the top surface of the dielectric layer, depositing a conductive layer on the dielectric layer and the recessed tungsten plug to fill the recess; and removing the conductive layer from the top surface of the dielectric layer to form a conductive plug on the recessed tungsten plug in the contact hole.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 11, 2008
    Inventors: Chih-Yang Pai, Wen-Chuan Chiang, Chung-Yi Yu, Yeur-Luen Tu, Yuan-Hung Liu, Hsiang-Fan Lee, Chuan-Jong Wang
  • Publication number: 20080217785
    Abstract: Conductions and vias between different, stacked metallic layers of a semiconductor device may be mechanically damaged by mechanical strain. According to an exemplary embodiment of the present invention, this mechanical strain may be transferred through the layer structure to the substrate by a grid of grounding structures and isolation and passivation layers which are connected by the grounding structures. This may provide for an enhancement of the lifetime of the semiconductor devices.
    Type: Application
    Filed: July 31, 2006
    Publication date: September 11, 2008
    Applicant: NXP B.V.
    Inventors: Soenke Habenicht, Ansgar Thorns, Heinrich Zeile
  • Publication number: 20080197503
    Abstract: A chip package including a carrier, at least one chip disposed on the carrier, a plurality of wires electrically connecting the carrier and the chip, and an encapsulant wrapping the chip and the wires is provided. The chip has a semiconductor substrate, an interconnection structure, at least one first reference plane, at least one second reference plane, and at least one chip via, in which the first and second reference planes are respectively located on both sides of the semiconductor substrate, and the interconnection structure is located on the first reference plane and the semiconductor substrate. The chip via connects the first reference plane to the second reference plane. The chip package further includes at least one conductive bonding layer, which bonds the second reference plane to the carrier.
    Type: Application
    Filed: October 22, 2007
    Publication date: August 21, 2008
    Applicant: VIA TECHNOLOGIES, INC.
    Inventor: Chi-Hsing Hsu
  • Patent number: 7414314
    Abstract: A semiconductor device has a semiconductor substrate, a first insulating film formed on a surface of the semiconductor substrate, a first recess formed in the first insulating film, a first barrier film formed on an inner surface of the first insulating film except a top peripheral region of the first trench, a first conductive film formed in the first trench, and a covering film formed on an upper surface and a top peripheral region of the first conductive film and an upper surface of the first barrier film. The first conductive film includes copper.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: August 19, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Kazuhide Abe
  • Patent number: 7402883
    Abstract: A back end of the line (BEOL) structure of a semiconductor device is presented. In one embodiment, the structure may include a first liner layer disposed on an intermediate interconnect structure, the intermediate interconnect structure having an opening disposed between two surfaces of a dielectric material, wherein the first liner layer is in direct contact with at least a portion of a conductive wiring material of an underneath interconnect layer; a noble metal layer disposed on the first liner layer at least in the opening; and a conductive wiring material disposed on the noble metal layer, the conductive wiring material substantially filling the opening; wherein the first liner layer, the noble metal layer and the conductive wiring material are coplanar with the two surfaces of the dielectric material of the intermediate interconnect structure, and the noble metal layer includes a different material than the first liner layer.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: July 22, 2008
    Assignee: International Business Machines Corporation, Inc.
    Inventors: Chih-Chao Yang, Shyng-Tsong Chen, Shom Ponoth, Terry A. Spooner
  • Publication number: 20080157383
    Abstract: A semiconductor device includes a first conductive layer, a first intermediate structure over the first conductive layer, a second intermediate structure over the first intermediate structure, and a second conductive layer over the second intermediate structure. The first intermediate structure includes a metal silicide layer and a nitrogen containing metal layer. The second intermediate structure includes at least a nitrogen containing metal silicide layer.
    Type: Application
    Filed: September 26, 2007
    Publication date: July 3, 2008
    Applicant: Hynix Semiconductor Inc.
    Inventors: Kwan-Yong LIM, Hong-Seon Yang, Heung-Jae Cho, Tae-Kyung Kim, Yong-Soo Kim, Min-Gyu Sung
  • Publication number: 20080150147
    Abstract: A bond pad for effecting through-wafer connections to an integrated circuit or electronic package and method of producing thereof. The bond pad includes a high surface area aluminum bond pad in order to resultingly obtain a highly reliable, low resistance connection between bond pad and electrical leads.
    Type: Application
    Filed: March 12, 2008
    Publication date: June 26, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James W. Adkisson, Jeffrey P. Gambino, Mark D. Jaffe, Richard J. Rassel, Edmund J. Sprogis
  • Publication number: 20080150146
    Abstract: A semiconductor device such as a CMOS image sensor and a method of fabricating the same, in which a stable alignment mark is formed. The semiconductor device includes an isolation layer formed in a scribe lane region of a semiconductor substrate and having a groove, an insulating layer having a hole through which the groove is exposed and formed on the semiconductor substrate, and a metal layer formed on the groove and the hole. The groove is formed in the isolation layer and is used as an alignment mark formation region. Thus, although the thickness of an interlayer insulating layer is not thick, it can be compensated for by the groove formed in the isolation layer.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 26, 2008
    Inventor: Yong-Suk Lee
  • Patent number: 7385292
    Abstract: A method of closely interconnecting integrated circuits contained within a semiconductor wafer to electrical circuits surrounding the semiconductor wafer. Electrical interconnects are held to a minimum in length by making efficient use of polyimide or polymer as an inter-metal dielectric thus enabling the integration of very small integrated circuits within a larger circuit environment at a minimum cost in electrical circuit performance.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: June 10, 2008
    Inventor: Mou-Shiung Lin
  • Publication number: 20080122102
    Abstract: A method for manufacturing a semiconductor device includes heating a substrate having an insulation film thereon to a first substrate temperature so that oxidizing species are emitted from the insulating film, the insulating film having a recessed portion formed in a surface thereof, forming a metal film on the insulating film at a second substrate temperature lower than the first substrate temperature, and oxidizing at least part of the metal film with oxidizing species remaining in the insulating film.
    Type: Application
    Filed: January 24, 2008
    Publication date: May 29, 2008
    Inventors: Atsuko Sakata, Junichi Wada, Seiichi Omoto, Masaaki Hatano, Soichi Yamashita, Kazuyuki Higashi, Naofumi Nakamura, Masaki Yamada, Kazuya Kinoshita, Tomio Katata, Masahiko Hasunuma
  • Patent number: 7379307
    Abstract: A wiring board includes: an insulating base; a plurality of conductive wirings; and bumps formed on the conductive wirings, respectively. The conductive wirings can be connected with electrode pads of a semiconductor element via the bumps. The conductive wirings include a connection terminal portion at an end portion opposite to the other end portion where the bumps are formed, and at the connection terminal portion, the conductive wirings can be connected with an external component. The conductive wirings include first conductive wirings and second conductive wirings, on which the bumps are formed respectively at a semiconductor element mounting region. The first conductive wirings extend from the bumps to the connection terminal portion. The second conductive wirings extend beyond the semiconductor element mounting region from the bumps but do not reach the connection terminal portion.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: May 27, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Imamura, Nozomi Shimoishizaka
  • Patent number: 7372157
    Abstract: A first insulating film consisting of an insulating material is formed on a major surface of a semiconductor substrate. On the first insulating film, a wire comprising a first conductive layer, which contains one of elemental Ti and a Ti compound, is formed. Cover films consisting of silicon nitride cover the upper surface, the bottom surface, and the side surfaces of the wire having a multilayer structure. Accordingly, a semiconductor device in which insulation defects are unlikely to occur even when the degree of integration is increased can be provided.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: May 13, 2008
    Assignee: Fujitsu Limited
    Inventors: Kazutaka Yoshizawa, Shinichiroh Ikemasu
  • Patent number: 7371679
    Abstract: A method of forming a metal line in a semiconductor device including forming an inter-metal dielectric (IMD) layer on the semiconductor substrate including the predetermined pattern, planarizing the IMD layer through a first CMP process, and patterning a via hole on the planarized substrate. The method further includes depositing a barrier metal layer in the via hole, filling a refractory metal in an upper part of the barrier metal layer, planarizing the substrate filled with the refractory metal by performing a second CMP process, forming a refractory metal oxide layer by oxidizing a residual refractory metal region created by the second CMP process, and forming a refractory metal plug by removing the refractory metal oxide layer through a third CMP process.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: May 13, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sung-Ho Jang
  • Patent number: 7372160
    Abstract: A protective barrier layer, formed of a material such as titanium or titanium nitride for which removal by chemical mechanical polishing (CMP) is primarily mechanical rather than primarily chemical, formed on a conformal tungsten layer. During subsequent CMP to pattern the tungsten layer, upper topological regions of the protective barrier layer (such as those overlying interlevel dielectric regions) are removed first, exposing the tungsten under those regions to removal, while protective barrier layer regions over lower topological regions (such as openings within the interlevel dielectric) remain to prevent chemical attack of underlying tungsten. CMP patterned tungsten is thus substantially planar with the interlevel dielectric without dishing, even in large area tungsten structures such as MOS capacitor structures.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: May 13, 2008
    Assignee: STMicroelectronics, Inc.
    Inventors: Charles R. Spinner, III, Rebecca A. Nickell, Todd H. Gandy
  • Patent number: 7365430
    Abstract: Disclosed herein is a semiconductor device and method of manufacturing the same. A step between a memory cell formed in a cell region and a transistor formed in a peripheral circuit region is minimized, and the height of a gate in the memory cell is minimized. Accordingly, subsequent processes are facilitated and the electrical property of the device is thus improved.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: April 29, 2008
    Assignee: Hynix Semiconductor Inc.
    Inventor: Cheol Mo Jeong
  • Patent number: 7361993
    Abstract: Terminal pads and methods of fabricating terminal pads. The methods including forming a conductive diffusion barrier under a conductive pad in or overlapped by a passivation layer comprised of multiple dielectric layers including diffusion barrier layers. The methods including forming the terminal pads subtractively or by a damascene process.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: April 22, 2008
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Daniel C. Edelstein, Ebenezer E. Eshun, Zhong-Xiang He, Robert M. Rassel, Anthony K. Stamper
  • Publication number: 20080079167
    Abstract: Interconnect, i.e., BEOL structures comprising at least one thin film resistor that is located at the same level as that of a neighboring conductive interconnect are provided. The present invention also provides a method of fabricating such interconnect structures utilizing processing steps that are compatible with current interconnect processing. Moreover, the inventive method of the present invention provides better technology extendibility in terms of higher density than prior art schemes.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Applicant: International Business Machines Corporation
    Inventor: Chih-Chao Yang
  • Publication number: 20080067566
    Abstract: A ferroelectric memory device may include a substrate, an interlayer insulating layer on the semiconductor substrate, a contact plug penetrating the interlayer insulating layer, the contact plug being formed of a sequentially stacked metal plug and buffer plug, a conductive protection pattern covering the contact plug, the conductive protection pattern being a conductive oxide layer, a lower electrode, a ferroelectric pattern, and an upper electrode sequentially stacked on the conductive protection pattern, and an insulating protection layer covering the sequentially stacked lower electrode, ferroelectric pattern, and upper electrode.
    Type: Application
    Filed: May 1, 2007
    Publication date: March 20, 2008
    Inventors: Do-Yeon Choi, Hee-San Kim, Heung-Jin Joo
  • Publication number: 20080054474
    Abstract: A semiconductor device and a fabricating method thereof are provided. A PMD layer and at least one IMD layer are formed on a semiconductor substrate. A through-electrode penetrates through the PMD layer and the IMD layer, and a connecting electrode connects to the through-electrode.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 6, 2008
    Inventors: KYUNG MIN PARK, Jae Won Han
  • Publication number: 20080054475
    Abstract: In embodiments, when forming a metal line of the semiconductor device, a developer having an amine group may coated on the metal line layer such that the amine group remains on a surface of the metal line layer. Further, a method of fabricating a semiconductor device may include forming a metal line layer for interlayer connection of the semiconductor device, performing a first photo process by coating a first photoresist on the metal line layer, after performing the first photo process, removing the first photoresist for a rework, after removing the first photoresist, coating a developer having an amine group on the metal line layer, after coating the developer, coating a second photoresist on the metal line layer, and performing a photo process by employing the second photoresist.
    Type: Application
    Filed: August 24, 2007
    Publication date: March 6, 2008
    Inventor: Jae-Hyun Kang
  • Publication number: 20080054436
    Abstract: A semiconductor device and a fabricating method thereof are provided. A PMD layer is formed on a semiconductor substrate, and at least one IMD layer is formed on the PMD layer. A through-electrode penetrates through the semiconductor substrate, the PMD layer, and each IMD layer, and a heat emission wiring is formed on an underside of the semiconductor substrate.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 6, 2008
    Inventor: In Cheol Baek
  • Publication number: 20080048282
    Abstract: A semiconductor device for a system in a package (SiP) type device can include a semiconductor substrate; a pre-metal-dielectric (PMD) layer on the semiconductor substrate; at least one metal layer on the PMD layer; a first through-electrode extending through the semiconductor substrate and the PMD layer; and a second through-electrode connected to the first through-electrode through the metal layer.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Inventor: JAE WON HAN
  • Publication number: 20080029853
    Abstract: A integrated circuit system including providing an integrated circuit device, forming an undoped insulating layer over the integrated circuit device, forming a thin insulating layer over the undoped insulating layer, forming a doped insulating layer over the thin insulating layer, and forming a contact in the undoped insulating layer, thin insulating layer and the doped insulating layer.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Applicant: CHARTERED SEMICONDUCTOR MANUFACTURING LTD.
    Inventors: Chih Ping Yong, Peter Chew, Chuin Boon Yeap, Hoon Lian Yap, Ranbir Singh, Nace Rossi, Jovin Lim
  • Patent number: 7323717
    Abstract: A wiring line to which a high-frequency signal is applied is electrically connected in parallel to an auxiliary, wiring line via a plurality of contact holes. The contact holes are formed through an interlayer insulating film and arranged in vertical direction to the wiring line. Since the auxiliary wiring line is formed in the same layer as an electrode that constitutes a TFT, the electric resistance of the wiring line can be reduced effectively and waveform rounding of an applied high-frequency signal can be reduced without increasing the number of manufacturing steps.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: January 29, 2008
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jun Koyama, Hisashi Ohtani, Yasushi Ogata, Shunpei Yamazaki
  • Patent number: 7321157
    Abstract: A method of fabricating a CoSb3-based thermoelectric device is disclosed. The method includes providing a high-temperature electrode, providing a buffer layer on the high-temperature electrode, forming composite n-type and p-type layers, attaching the buffer layer to the composite n-type and p-type layers, providing a low-temperature electrode on the composite n-type and p-type layers and separating the composite n-type and p-type layers from each other to define n-type and p-type legs between the high-temperature electrode and the low-temperature electrode.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: January 22, 2008
    Assignees: GM Global Technology Operations, Inc., Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Lidong Chen, Junfeng Fan, Shengqiang Bai, Jihui Yang
  • Publication number: 20080012143
    Abstract: A method of fabricating a semiconductor device can include forming a first metal layer on a semiconductor substrate, and forming a second metal layer on the first metal layer. The second metal layer is ion-implanted with material having an anti-reflective function. The anti-reflective function is endowed to the metal layer using the ion implantation, and a separate anti-reflective layer is not necessary.
    Type: Application
    Filed: July 12, 2007
    Publication date: January 17, 2008
    Inventor: JIN HA PARK
  • Patent number: 7307344
    Abstract: Disclosed is a semiconductor device comprising a semiconductor substrate, a first insulating film formed above the semiconductor substrate, Cu wiring buried in the first insulating film, a second insulating film formed above the Cu wiring, and a discontinuous film made of at least one metal selected from the group consisting of Ti, Al, W, Pd, Sn, Ni, Mg and Zn, or a metal oxide thereof and interposed at an interface between the Cu wiring and the second insulating film.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: December 11, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Gaku Minamihaba, Hiroyuki Yano, Nobuyuki Kurashima, Susumu Yamamoto
  • Patent number: 7303988
    Abstract: Methods of forming a multi-level metal line of a semiconductor device are disclosed. One example method includes subsequently stacking first and second metal layers, wherein a conductive etching stopper layer is interposed at an interface between the first and second metal layers; forming first and second metal layer pattern by patterning the first metal layer, the etching stopper layer, and the second metal layer, wherein the first metal layer pattern is formed as a lower metal line; forming a connection contact in form of a plug by selectively etching the second metal layer pattern until the etching stopper layer is exposed; forming an interlayer insulating layer to cover the connection contact and the first metal layer pattern; and exposing an upper surface of the connection contact by planarizing the interlayer insulating layer.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: December 4, 2007
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Sang Chul Shim
  • Patent number: 7301241
    Abstract: The semiconductor device has insulating films 40, 42 formed over a substrate 10; an interconnection 58 buried in at least a surface side of the insulating films 40, 42; insulating films 60, 62 formed on the insulating film 42 and including a hole-shaped via-hole 60 and a groove-shaped via-hole 66a having a pattern bent at a right angle; and buried conductors 70, 72a buried in the hole-shaped via-hole 60 and the groove-shaped via-hole 66a . A groove-shaped via-hole 66a is formed to have a width which is smaller than a width of the hole-shaped via-hole 66. Defective filling of the buried conductor and the cracking of the inter-layer insulating film can be prevented. Steps on the conductor plug can be reduced. Accordingly, defective contact with the upper interconnection layer and the problems taking place in forming films can be prevented.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: November 27, 2007
    Assignee: Fujitsu Limited
    Inventor: Kenichi Watanabe
  • Patent number: 7301238
    Abstract: The contact opening through an insulating layer is formed having a straight sidewall portion and a bowl shaped sidewall portion. The bowl shaped sidewall portion is near the top of the insulation layer to provide an enlarged diameter of the contact opening at the top relative to the bottom. A conductive material is then formed in the contact opening in electrical contact with a lower conductive layer. The conductive material forms a plug having an enlarged head, such as a nail head or a flat heat screw shape. The enlarged head protects the silicon and a barrier layer, if present, within the contact from being etched by any subsequent anisotropic etches. Thus, when an electrical interconnection layer such as aluminum is formed overlying the contact plug, the plug acts as an etch stop to prevent etching of a barrier layer of the barrier layer within the contact opening.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: November 27, 2007
    Assignee: STMicroelectronics, Inc.
    Inventor: Gregory C. Smith
  • Patent number: 7298029
    Abstract: A non-contact identification semiconductor device is provided with a semiconductor chip including a receiving circuit that receives an inquiry to the non-contact identification semiconductor device, a memory that stores identification information of multiple bits and a sending circuit that sends the identification information. An antenna coupled to said semiconductor chip receives the identification information from said semiconductor chip and transmits the identification information outside of said non-contact semiconductor. The long side length of the semiconductor chip is not greater than 0.5 mm in plane dimension, and the identification information is stored by a pattern printed by an electron beam.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: November 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuo Usami, Kazutaka Tsuji, Takeshi Saito, Akira Sato, Kenji Sameshima, Kazuo Takaragi, Chizuko Yasunobu
  • Patent number: 7294851
    Abstract: Methods of forming dense seed layers and structures thereof. Seed layers comprising a monolayer of molecules having a density of about 0.5 or greater may be manufactured over a metal layer, resulting in a well defined interface region between the metal layer and a subsequently formed material layer. A seed layer comprising a monolayer of atoms is formed over the metal layer, the temperature of the workpiece is lowered, and a physisorbed layer is formed over the seed layer, the physisorbed layer comprising a weakly bound layer of first molecules. A portion of the first molecules in the physisorbed layer are dissociated by irradiating the physisorbed layer with energy, the dissociated atoms of the first molecules being proximate the seed layer. The workpiece is then heated, causing integration of the dissociated atoms of the first molecules of the physisorbed layer into the seed layer and removing the physisorbed layer.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: November 13, 2007
    Assignee: Infineon Technologies AG
    Inventor: Stefan Wurm
  • Patent number: 7294858
    Abstract: A semiconductor device provided with a silicon carbide semiconductor substrate, and an ohmic metal layer joined to one surface of the silicon carbide semiconductor substrate in an ohmic contact and composed of a metal material whose silicide formation free energy and carbide formation free energy respectively take negative values. The ohmic metal layer is composed of, for example, a metal material such as molybdenum, titanium, chromium, manganese, zirconium, tantalum, or tungsten.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: November 13, 2007
    Assignee: Rohm Co., Ltd.
    Inventors: Yuji Okamura, Masashi Matsushita
  • Patent number: 7294565
    Abstract: A method for sealing an exposed surface of a wire bond pad with a material that is capable of preventing a possible chemical attack during electroless deposition of Ni/Au pad metallurgy is provided. Specifically, the present invention provides a method whereby a TiN/Ti or TiN/Al cap is used as a protective coating covering exposed surfaces of a wire bond pad. The TiN/Ti or TiN/Al cap is not affected by alkaline chemistries used in forming the Ni/Au metallization, yet it provides a sufficient electrical pathway connecting the bond pads to the Ni/Au pad metallization.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: November 13, 2007
    Assignee: International Business Machines Corporation
    Inventors: Lloyd G. Burrell, Charles R. Davis, Ronald D. Goldblatt, William F. Landers, Sanjay C. Mehta
  • Patent number: RE39932
    Abstract: A plurality of metal wires are formed on an underlying interlayer insulating film. Areas among the metal wires are filled with a buried insulating film of a silicon oxide film with a small dielectric constant (i.e., a first dielectric film), and thus, a parasitic capacitance of the metal wires can be decreased. On the buried insulating film, a passivation film of a silicon nitride film with high moisture absorption resistance (i.e., a second dielectric film) is formed, and thus, a coverage defect can be avoided. A bonding pad is buried in an opening formed in a part of a surface protecting film including the buried insulating film and the passivation film, so as not to expose the buried insulating film within the opening. Thus, moisture absorption through the opening can be prevented.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: December 4, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshiki Yabu, Mizuki Segawa