Reflowing Or Applying Pressure To Fill Contact Hole, E.g., To Remove Voids (epo) Patents (Class 257/E21.588)
  • Patent number: 11581487
    Abstract: An opto-electronic device includes: (1) a substrate including a first region and a second region; and (2) a conductive coating covering the second region of the substrate. The first region of the substrate is exposed from the conductive coating, and an edge the conductive coating adjacent to the first region of the substrate has a contact angle that is greater than about 20 degrees.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: February 14, 2023
    Assignee: OTI Lumionics Inc.
    Inventors: Yi-Lu Chang, Qi Wang, Dong Gao, Scott Nicholas Genin, Michael Helander, Jacky Qiu, Zhibin Wang
  • Patent number: 11088327
    Abstract: An opto-electronic device includes: a first electrode; an organic layer disposed over the first electrode; a nucleation promoting coating disposed over the organic layer; a nucleation inhibiting coating covering a first region of the opto-electronic device; and a conductive coating covering a second region of the opto-electronic device.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 10, 2021
    Assignee: OTI Lumionics Inc.
    Inventors: Yi-Lu Chang, Qi Wang, Michael Helander, Jacky Qiu, Zhibin Wang, Thomas Lever
  • Patent number: 10276502
    Abstract: A method for manufacturing a semiconductor device includes: a process of forming a Cu wiring electrode by a plating method above a semiconductor element using a wide bandgap semiconductor as a base material; a reducing process of reducing the Cu wiring electrode under a NH3 atmosphere; a heating process of heating the Cu wiring electrode at the same time as the reducing process; a process of forming a diffusion prevention film covering the Cu wiring electrode after the heating process; and a sealing process of covering the diffusion prevention film with an organic resin film.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: April 30, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Motoru Yoshida, Hiroaki Okabe, Kazuyuki Sugahara
  • Patent number: 10270033
    Abstract: An opto-electronic device includes: (1) a substrate; (2) a nucleation inhibiting coating covering a first region of the substrate; and (3) a conductive coating including a first portion and a second portion. The first portion of the conductive coating covers a second region of the substrate, the second portion of the conductive coating partially overlaps the nucleation inhibiting coating, and the second portion of the conductive coating is spaced from the nucleation inhibiting coating by a gap.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 23, 2019
    Assignee: OTI Lumionics Inc.
    Inventors: Yi-Lu Chang, Qi Wang, Michael Helander, Jacky Qiu, Zhibin Wang, Thomas Lever
  • Patent number: 10224283
    Abstract: A semiconductor device includes a metal-containing structure such as a copper-containing wire or plug and a composite capping layer formed over the metal-containing structure. The composite capping layer includes a manganese-containing layer disposed over the metal-containing structure, a silicon-containing low-k dielectric layer disposed over the manganese-containing layer, and an intermediate layer between the manganese-containing layer and the silicon-containing low-k dielectric layer. The intermediate layer is the reaction product of the manganese-containing layer and the silicon-containing low-k dielectric layer.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: March 5, 2019
    Assignee: International Business Machines Corporation
    Inventors: Donald F. Canaperi, Son V. Nguyen, Takeshi Nogami, Deepika Priyadarshini
  • Patent number: 9524924
    Abstract: An approach to creating a semiconductor structure for a dielectric layer over a void area includes determining a location of a void area of the topographical semiconductor feature. A second dielectric layer is deposited on a first dielectric layer and a top surface of a topographical semiconductor feature. The second dielectric layer is patterned to one or more portions, wherein at least one portion of the patterned second dielectric layer is over the location of the void area of the topographical semiconductor feature. A first metal layer is deposited over the second dielectric layer, at least one portion of the first dielectric layer, and a portion of the top surface of the topographical semiconductor feature. A chemical mechanical polish of the first metal layer is performed, wherein the chemical mechanical polish reaches the top surface of at least one of the one or more portions of the second dielectric layer.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: December 20, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Daniel J. Couture, Jeffrey P. Gambino, Zhong-Xiang He, Anthony K. Stamper
  • Patent number: 9343402
    Abstract: A manufacturing method of a semiconductor device comprises releasing an oxidation source included in an interlayer dielectric film having an opening portion formed on a surface thereof and being present on the surface of the interlayer dielectric film at a first substrate temperature, forming a first layer containing Ti and N to contact with at least a part of the interlayer dielectric film at a second substrate temperature lower than the first substrate temperature, wherein a Ti content in the first layer is more than 50 at % in all components, provided that oxygen and precious metals are excluded from the all components, and forming a Cu metal layer above the first layer.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 17, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Atsuko Sakata, Jun-ichi Wada
  • Patent number: 9306122
    Abstract: An LED includes a first electrode, for connecting the LED to a negative electrode of a power supply and a substrate located on the first electrode in which a plurality of contact holes are formed extending through the substrate. The diameter of upper parts of the contact holes is less than the diameter of lower parts of the contact holes, and the contact holes are filled with electrode plugs connecting the first electrode to the LED die. The light emitting device includes the LED, and further includes a susceptor and an LED mounted on the susceptor. The manufacturing method includes forming successively an LED die and a second electrode on a substrate, patterning a back surface of the substrate to form inverted trapezoidal contact holes which expose the LED die, and filling the contact holes with conductive material until the back face of the substrate is covered by the conductive material.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: April 5, 2016
    Assignee: Enraytek Optoelectronics Co., Ltd.
    Inventors: Richard Rugin Chang, Deyuan Xiao
  • Patent number: 8927333
    Abstract: A package-on-package arrangement for maintaining die alignment during a reflow operation is provided. A first top die has a first arrangement of solder bumps. A bottom package has a first electrical arrangement to electrically connect to the first arrangement of solder bumps. A die carrier has a plurality of mounting regions defined on its bottom surface, wherein the first top die is adhered to the die carrier at a first of the plurality of mounting regions. One of a second top die and a dummy die having a second arrangement of solder bumps is also fixed to the die carrier at a second of the plurality of mounting regions of the die carrier. The first and second arrangements of solder bumps are symmetric to one another, therein balancing a surface tension during a reflow operation, and generally fixing an orientation of the die carrier with respect to the bottom package.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: January 6, 2015
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tsung-Shu Lin, Yu-Ling Tsai, Han-Ping Pu
  • Patent number: 8890262
    Abstract: Provided is a semiconductor device (e.g., transistor such as a FinFET or planar device) having a a liner layer and a metal layer (e.g., Tungsten (W)) in a trench (e.g., via CVD and/or ALD). A single chamber (e.g., an extreme fill chamber) will be utilized to separately etch back the liner layer and the metal layer. In general, the liner layer may be etched back further than the metal layer to provide for larger contact and lower resistance. After etching is complete, a bottom-up fill/growth of metal (e.g., W) will be performed (e.g., via CVD in a W chamber or the like) to increase the presence of gate metal in the trench.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: November 18, 2014
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Vimal Kamineni, Ruilong Xie
  • Patent number: 8604529
    Abstract: A CMOS image sensor includes a substrate including silicon, a silicon germanium (SiGe) epitaxial layer formed over the substrate, the SiGe epitaxial layer formed through epitaxial growth and doped with a predetermined concentration level of impurities, an undoped silicon epitaxial layer formed over the SiGe epitaxial layer by epitaxial growth, and a photodiode region formed from a top surface of the undoped silicon epitaxial layer to a predetermined depth in the SiGe epitaxial layer.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: December 10, 2013
    Assignee: Intellectual Ventures II LLC
    Inventor: Han-Seob Cha
  • Publication number: 20130214414
    Abstract: Interconnect structures and methods of manufacturing the same are disclosed herein. The method includes forming a barrier layer within a structure and forming an alloy metal on the barrier layer. The method further includes forming a pure metal on the alloy metal, and reflowing the pure metal such that the pure metal migrates to a bottom of the structure, while the alloy metal prevents exposure of the barrier layer. The method further includes completely filling in the structure with additional metal.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 22, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel C. EDELSTEIN, Takeshi NOGAMI
  • Patent number: 8513112
    Abstract: A method for forming conductive contacts and interconnects in a semiconductor structure, and the resulting conductive components are provided. In particular, the method is used to fabricate single or dual damascene copper contacts and interconnects in integrated circuits such as memory devices and microprocessor.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 20, 2013
    Assignee: Mosaid Technologies, Incorporated
    Inventors: Kie Y. Ahn, Leonard Forbes
  • Patent number: 8497157
    Abstract: In a method of manufacturing a semiconductor device, a front end of line (FEOL) process may be performed on a semiconductor substrate to form a semiconductor structure. A back end of line (BEOL) process may be performed on the semiconductor substrate to form a wiring structure electrically connected to the semiconductor structure, thereby formed a semiconductor chip. A hole may be formed through a part of the semiconductor chip. A preliminary plug may have a dimple in the hole. The preliminary plug may be expanded into the dimple by a thermal treatment process to form a plug. Thus, the plug may not have a protrusion protruding from the upper surface of the semiconductor chip, so that the plug may be formed by the single CMP process.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: July 30, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Jin Moon, Byung-Lyul Park, Do-Sun Lee, Gil-Heyun Choi, Suk-Chul Bang, Dong-Chan Lim, Deok-Young Jung
  • Patent number: 8304909
    Abstract: Embodiments of IC manufacture resulting in improved electromigration and gap-fill performance of interconnect conductors are described in this application. Reflow agent materials such as Sn, Al, Mn, Mg, Ag, Au, Zn, Zr, and In may be deposited on an IC substrate, allowing PVD depositing of a Cu layer for gap-fill of interconnect channels in the IC substrate. The Cu layer, along with reflow agent layer, may then be reflowed into the interconnect channels, forming a Cu alloy with improved gap-fill and electromigration performance. Other embodiments are also described.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: November 6, 2012
    Assignee: Intel Corporation
    Inventor: Adrien R. Lavoie
  • Patent number: 8211792
    Abstract: A method for forming conductive contacts and interconnects in a semiconductor structure, and the resulting conductive components are provided. In particular, the method is used to fabricate single or dual damascene copper contacts and interconnects in integrated circuits such as memory devices and microprocessor.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: July 3, 2012
    Assignee: Mosaid Technologies Incorporated
    Inventors: Kie Y. Ahn, Leonard Forbes
  • Publication number: 20120146212
    Abstract: Solder bump connections and methods for fabricating solder bump connections. The method includes forming a layer stack containing first and second conductive layers, forming a dielectric passivation layer on a top surface of the second conductive layer, and forming a via opening extending through the dielectric passivation layer to the top surface of the second conductive layer. The method further includes forming a conductive plug in the via opening. The solder bump connection includes first and second conductive layers comprised of different conductors, a dielectric passivation layer on a top surface of the second conductive layer, a via opening extending through the dielectric passivation layer to the top surface of the second conductive layer, and a conductive plug in the via opening.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 14, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Timothy H. Daubenspeck, Jeffrey P. Gambino, Ekta Misra, Christopher D. Muzzy, Wolfgang Sauter, George J. Scott
  • Patent number: 8119519
    Abstract: A method for making a semiconductor device including at least three interconnection layers sequentially stacked without intervention of a via layer. At least one of the interconnection layers includes an interconnection and a via which connects interconnections provided in interconnection layers underlying and overlying the one interconnection layer.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: February 21, 2012
    Assignee: Rohm Co., Ltd.
    Inventor: Satoshi Kageyama
  • Patent number: 8076197
    Abstract: A CMOS image sensor includes a substrate including silicon, a silicon germanium (SiGe) epitaxial layer formed over the substrate, the SiGe epitaxial layer formed through epitaxial growth and doped with a predetermined concentration level of impurities, an undoped silicon epitaxial layer formed over the SiGe epitaxial layer by epitaxial growth, and a photodiode region formed from a top surface of the undoped silicon epitaxial layer to a predetermined depth in the SiGe epitaxial layer.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: December 13, 2011
    Assignee: Intellectual Ventures II LLC
    Inventor: Han-Seob Cha
  • Patent number: 8026176
    Abstract: A technique for embedding metal in a microscopic recess provided in the surface of a process object, such as a semiconductor wafer, by plasma sputtering. A film forming step and a diffusion step are alternately performed a plurality of times. The film forming step deposits a small amount of metal film in the recess. The diffusion step moves the deposited metal film towards the bottom portion of the recess. In the film forming step, bias power to be applied to a stage for supporting the wafer is set to a value ensuring that, on the surface of the wafer, the rate of metal deposition due to the drawing-in of metal particles is substantially equal to the rate of the sputter etching by plasma. In the diffusion step, the wafer is maintained at a temperature which permits occurrence of surface diffusion of the metal film deposited in the recess.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: September 27, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Takashi Sakuma, Taro Ikeda, Osamu Yokoyama, Tsukasa Matsuda, Tatsuo Hatano, Yasushi Mizusawa
  • Patent number: 7994034
    Abstract: A programmable resistance, chalcogenide, switching or phase-change material device includes a substrate with a plurality of stacked layers including a conducting bottom electrode layer, an insulative layer having an opening formed therein, an active material layer deposited over both the insulative layer, within the opening, and over selected portions of the bottom electrode, and a top electrode layer deposited over the active material layer. The device uses temperature and pressure control methods to increase surface mobility in an active material layer, thus providing complete coverage or fill of the openings in the insulative layer, selected exposed portions of the bottom electrode layer, and the insulative layer.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: August 9, 2011
    Assignee: Ovonyx, Inc.
    Inventors: Jeff Fournier, Wolodymyr Czubatyj, Tyler Lowrey
  • Patent number: 7888261
    Abstract: A method for forming conductive contacts and interconnects in a semiconductor structure, and the resulting conductive components are provided. In particular, the method is used to fabricate single or dual damascene copper contacts and interconnects in integrated circuits such as memory devices and microprocessor.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: February 15, 2011
    Assignee: Mosaid Technologies, Incorporated
    Inventors: Kie Y. Ahn, Leonard Forbes
  • Patent number: 7859114
    Abstract: An IC chip and design structure having a TWV contact contacting the TWV and extending through a second dielectric layer over the TWV. An IC chip may include a substrate; a through wafer via (TWV) extending through at least one first dielectric layer and into the substrate; a TWV contact contacting the TWV and extending through a second dielectric layer over the TWV; and a first metal wiring layer over the second dielectric layer, the first metal wiring layer contacting the TWV contact.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: December 28, 2010
    Assignee: International Business Machines Corporation
    Inventors: Peter J. Lindgren, Edmund J. Sprogis, Anthony K. Stamper
  • Patent number: 7834459
    Abstract: An inventive semiconductor device includes at least three interconnection layers sequentially stacked without intervention of a via layer. At least one of the interconnection layers includes an interconnection and a via which connects interconnections provided in interconnection layers underlying and overlying the one interconnection layer.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: November 16, 2010
    Assignee: Rohm Co., Ltd.
    Inventor: Satoshi Kageyama
  • Patent number: 7790552
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of bulb-shaped recesses in a substrate, forming a gate insulation layer over the substrate including the bulb-shaped recesses, forming a patterned first conductive layer over sidewalls of a bulb pattern of the corresponding bulb-shaped recesses, and forming a patterned second conductive layer over the gate insulation layer while filling the bulb-shaped recesses.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: September 7, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Sang-Hoon Cho
  • Publication number: 20100144137
    Abstract: A method of interconnecting semiconductor devices by using capillary motion, thereby simplifying fabricating operations, reducing fabricating costs, and simultaneously filling of through-silicon-vias (TSVs) and interconnecting semiconductor devices. The method includes preparing a first semiconductor device in which first TSVs are formed, positioning solder balls respectively on the first TSVs, performing a back-lap operation on the first semiconductor device, positioning a second semiconductor device, in which second TSVs are formed, above the first semiconductor device on which the solder balls are positioned, and performing a reflow operation such that the solder balls fill the first and second TSVs due to capillary motion.
    Type: Application
    Filed: October 15, 2009
    Publication date: June 10, 2010
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Kwang-yong LEE, Jong-gi Lee, Min-ill Kim, Min-seung Yoon, Ji-seok Hong
  • Patent number: 7608535
    Abstract: An interlayer insulation layer is formed on a semiconductor substrate to cover a lower wiring layer that is also formed on the semiconductor substrate. A contact hole to expose a surface of the lower wiring layer is formed by etching the interlayer insulation film. A wetting layer is formed on an inner wall of the contact hole. An anti-deposition layer is formed around an entrance of the contact hole to prevent an aluminum layer from being deposited around the entrance of the contact hole. The contact hole is filled with the aluminum layer.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: October 27, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hyun Phill Kim
  • Publication number: 20090250819
    Abstract: The invention relates to a metal line of a semiconductor device and a method of forming the same. According to a method of forming a metal line of a semiconductor device in accordance with an aspect of the invention, a semiconductor substrate in which contact plugs are formed within contact holes of a first dielectric layer is first provided. An etch-stop layer and a hard mask pattern are formed over the first dielectric layer and the contact plugs. The etch-stop layer is patterned along the hard mask pattern. The exposed first dielectric layer and the contact plugs are etched to thereby form trenches in the first dielectric layer over the contact plugs. A metal layer is formed to gap-fill the trenches. A polishing process is performed to expose the etch-stop layer.
    Type: Application
    Filed: June 27, 2008
    Publication date: October 8, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Sang Deok Kim
  • Patent number: 7575993
    Abstract: To provide a method of forming a wiring for the purpose of providing a semiconductor device, which is superior in reliability and cost performance. Further, to provide methods of manufacturing a semiconductor device and a display device by using the method of forming the wiring according to the present invention. According to the present invention, when a wiring material and the like is directly patterned on a substrate mainly having an insulating surface by droplet discharging method, a wiring is formed at a position including at least an opening in contact with an underlying portion on an insulating film provided with the opening by dropping a liquid droplet containing a conductive composition by droplet discharging method. By heating the substrate with the wiring formed thereon, a surface of the wiring on the opening and a surface of the wiring other than the wiring on the opening are approximately leveled, and the opening is filled.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 18, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Toru Takayama, Tetsuji Yamaguchi
  • Patent number: 7560380
    Abstract: A method of forming a metal interconnect for an integrated circuit includes depositing a barrier layer on a dielectric layer having a trench formed therein, depositing an adhesion layer on the barrier layer, depositing a metal layer on the adhesion layer, removing the metal layer using a CMP process until at least a portion of the adhesion layer is exposed, and removing portions of the adhesion layer and the barrier layer sited substantially outside of the trench using a dissolution process. The dissolution process applies an electrolyte solution to those portions of the adhesion layer and the barrier layer sited substantially outside of the trench to dissolve and remove them.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: July 14, 2009
    Assignee: Intel Corporation
    Inventors: Tatyana N. Andryushchenko, Anne E. Miller
  • Patent number: 7510961
    Abstract: A method for manufacturing an interconnect structure situated on a semiconductor wafer having a substrate assembly thereon. The interconnect structure is formed in a recess such as a trench, a hole, a via, or a combination of a trench and a hole or via within a dielectric material situated on the substrate assembly of the semiconductor wafer. At least one barrier layer is deposited within the recess. A seed layer helping to promote nucleation, deposition, and growth of a material that will be used to fill up the recess is then deposited on the barrier layer. An electrically conductive layer is then formed upon the seed layer. An energy absorbing layer will then be formed upon the conductor layer, where the energy absorbing layer has a greater thermal absorption capacity than that of the electrically conductive layer. The energy absorbing layer is heated, with or without an applied heightened pressure, to cause the conductor layer to flow so as to fill voids that have formed within the dielectric structure.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: March 31, 2009
    Assignee: Micron Technology, Inc.
    Inventor: John H. Givens
  • Patent number: 7485575
    Abstract: A semiconductor substrate is inserted into a heat treatment apparatus at a low temperature ranging from room temperature to about 50° C., and organic substances included in a metal on the semiconductor substrate are released without carbonization in an annealing process before CMP. Further, organic substances capable of preventing the corrosion of the metal are decomposed, and the organic substances themselves and chlorine, sulfuric acid, and ammonia which are included in the organic substances are diffused out of the metal film by setting the heat treatment apparatus at a rate of temperature rise of 15° C./min or less until a prescribed heat treatment temperature is reached.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: February 3, 2009
    Assignee: Panasonic Corporation
    Inventors: Yoshiharu Hidaka, Etsuro Kishio
  • Patent number: 7470580
    Abstract: To form a wiring electrode having excellent contact function, in covering a contact hole formed in an insulating film, a film of a wiring material comprising aluminum or including aluminum as a major component is firstly formed and on top of the film, a film having an element belonging to 12 through 15 groups as a major component is formed and by carrying out a heating treatment at 400° C. for 0.5 through 2 hr in an atmosphere including hydrogen, the wiring material is provided with fluidity and firm contact is realized.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: December 30, 2008
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hideomi Suzawa, Kunihiko Fukuchi
  • Publication number: 20080303163
    Abstract: A method for preparing a die for packaging is disclosed. A die having first and second major surfaces is provided. Vias and a mask layer are formed on the first major surface of the die. The mask includes mask openings that expose the vias. The mask openings are filled with a conductive material. The method includes reflowing to at least partially fill the vias and contact openings to form via contacts in the vias and surface contacts in the mask openings.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Applicant: UNITED TEST AND ASSEMBLY CENTER LTD.
    Inventors: Hao LIU, Yi Sheng Anthony SUN, Ravi Kanth KOLAN, Chin Hock TOH
  • Publication number: 20080220608
    Abstract: The present invention provides an interconnect structure that can be made in the BEOL which exhibits good mechanical contact during normal chip operations and does not fail during various reliability tests as compared with the conventional interconnect structures described above. The inventive interconnect structure has a kinked interface at the bottom of a via that is located within an interlayer dielectric layer. Specifically, the inventive interconnect structure includes a first dielectric layer having at least one metallic interconnect embedded within a surface thereof; a second dielectric layer located atop the first dielectric layer, wherein said second dielectric layer has at least one aperture having an upper line region and a lower via region, wherein the lower via region includes a kinked interface; at least one pair of liners located on at least vertical walls of the at least one aperture; and a conductive material filling the at least one aperture.
    Type: Application
    Filed: May 15, 2008
    Publication date: September 11, 2008
    Applicant: International Business Machines Corporation
    Inventors: Lawrence A. Clevenger, Timothy Joseph Dalton, Louis C. Hsu, Conal Eugene Murray, Carl Radens, Kwong-Hon Wong, Chih-Chao Yang
  • Patent number: 7387903
    Abstract: Aspects of the invention provide a manufacturing method enabling a fine layer pattern to form it precisely and stably. An exemplary method for manufacturing a layer pattern can include a step (a) of forming a region defined by a first layer and a second layer on a substrate and a step (b) of ejecting a liquid like material to the region from an ejecting part of an ejecting device. Here, the first layer can be formed on the substrate and the second layer can be located on the first layer. A lyophobicity of the first layer to the liquid like material is lower than the lyophobicity of the second layer to the liquid like material.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: June 17, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Hirofumi Sakai, Kazuaki Sakurada
  • Patent number: 7344979
    Abstract: A copper film is annealed at high pressure to enhance grain growth and remove voids. Other films, such as dielectrics, may also be suitable. High pressure can be used in conjunction with temperatures lower than room temperature for annealing or higher temperatures may be used to further enhance grain growth.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: March 18, 2008
    Assignee: WaferMasters, Inc.
    Inventors: Woo Sik Yoo, Kitaek Kang
  • Publication number: 20080014743
    Abstract: A method of fabricating semiconductor interconnections is provided which can form a Ti-rich layer as a barrier layer and which can embed pure Cu material as interconnection material into every corner of grooves provided in an insulating film even when the grooves have a narrow minimum width and are deep. The method may include the steps of forming one or more grooves in an insulating film on a semiconductor substrate, the recess having a minimum width of 0.15 ?m or less and a ratio of a depth of the groove to the minimum width thereof (depth/minimum width) of 1 or more, forming a Cu alloy thin film containing 0.5 to 10 atomic % of Ti in the groove of the insulated film along a shape of the groove in a thickness of 10 to 50 nm, forming a pure Cu thin film in the groove with the Cu alloy thin film attached thereto, and annealing the substrate with the films at 350° C. or more to allow the Ti to be precipitated between the insulating film and the Cu alloy thin film.
    Type: Application
    Filed: June 19, 2007
    Publication date: January 17, 2008
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takashi Onishi, Mikako Takeda, Masao Mizuno, Susumu Tsukimoto, Tatsuya Kabe, Toshifumi Morita, Miki Moriyama, Kazuhiro Ito, Masanori Murakami
  • Publication number: 20070281473
    Abstract: Methods and systems for forming electrical interconnects through microelectronic workpieces are disclosed herein. One aspect of the invention is directed to a method of manufacturing an electrical interconnect in a microelectronic workpiece having a plurality of dies. Each die can include at least one terminal electrically coupled to an integrated circuit. The method can include forming a blind hole in a first side of the workpiece, and forming a vent in a second side of the workpiece in fluid communication with the blind hole. The method can further include moving, e.g., by sucking and/or wetting, electrically conductive material into at least a portion of the blind hole by drawing at least a partial vacuum in the vent. In one embodiment, the blind hole can extend through one of the terminals on the workpiece. In this embodiment, the electrically conductive material forms an interconnect that extends through the workpiece and is electrically coupled to the terminal.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 6, 2007
    Applicant: Micron Technology, Inc.
    Inventors: Douglas Clark, Steven D. Oliver, Kyle K. Kirby, Ross S. Dando
  • Patent number: 7208839
    Abstract: Methods relating to forming interconnects through injection of conductive materials, to fabricating semiconductor component assemblies, and to resulting assemblies. A semiconductor component substrate, such as a semiconductor die or other substrate, has dielectric material disposed on a surface thereof, surrounding but not covering interconnect elements, such as bond pads, on that surface. A second semiconductor component substrate, such as a carrier substrate with interconnect elements such as terminal pads, is adhered to the first semiconductor component substrate, forming a semiconductor package assembly having interconnect voids between the corresponding interconnect elements. A flowable conductive material is then injected into each interconnect void using an injection needle that passes through one of the substrates into the interconnect void, forming a conductive interconnect between the bond pads and terminal pads of the substrates.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: April 24, 2007
    Assignee: Micron Technology, Inc.
    Inventor: Charles E. Larson
  • Patent number: 7192859
    Abstract: To provide a method of forming a wiring for the purpose of providing a semiconductor device, which is superior in reliability and cost performance. Further, to provide methods of manufacturing a semiconductor device and a display device by using the method of forming the wiring according to the present invention. According to the present invention, when a wiring material and the like is directly patterned on a substrate mainly having an insulating surface by droplet discharging method, a wiring is formed at a position including at least an opening in contact with an underlying portion on an insulating film provided with the opening by dropping a liquid droplet containing a conductive composition by droplet discharging method. By heating the substrate with the wiring formed thereon, a surface of the wiring on the opening and a surface of the wiring other than the wiring on the opening are approximately leveled, and the opening is filled.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: March 20, 2007
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Toru Takayama, Tetsuji Yamaguchi
  • Patent number: 7188411
    Abstract: A process for forming portions of a compound material within an electronic circuit includes the formation of a cavity having at least one opening facing onto an access surface. The cavity furthermore has an internal wall with at least one region made of an initial material (for example, silicon). A metal is deposited close to the region of initial material. The circuit is then heated to form a portion of the compound material (for example, a silicide) in the region of initial material inside the cavity. The compound material is formed from elements of the initial material and from some of the metal deposited. The excess metal that has not formed some of the compound material is then removed from the cavity.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: March 13, 2007
    Assignee: STMicroelectronics S.A.
    Inventors: Philippe Coronel, Christophe Regnier, François Wacquant, Thomas Skotnicki
  • Patent number: 7186643
    Abstract: A method for forming conductive contacts and interconnects in a semiconductor structure, and the resulting conductive components are provided. In particular, the method is used to fabricate single or dual damascene copper contacts and interconnects in integrated circuits such as memory devices and microprocessor.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: March 6, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Kie Y Ahn, Leonard Forbes
  • Patent number: 7157327
    Abstract: The present invention provides methods of producing substantially void-free trench structures. After deposition of an a-Si or polysilicon layer in a trench formed in a semiconductor, the a-Si or polysilicon is exposed to hydrogen at an elevated temperature.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: January 2, 2007
    Assignee: Infineon Technologies AG
    Inventor: Moritz Haupt