Capacitor Extending Under Transfer Transistor Area (epo) Patents (Class 257/E21.65)
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Patent number: 11469230Abstract: Systems, methods and apparatus are provided for an array of vertically stacked memory cells. The vertically stacked memory cells have horizontally oriented access devices having a first source/drain region, a channel region, and a second source drain and storage nodes that are vertically separated from the access devices.Type: GrantFiled: March 1, 2021Date of Patent: October 11, 2022Assignee: Micron Technology, Inc.Inventors: Kamal M. Karda, Haitao Liu, Litao Yang
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Patent number: 11177004Abstract: A semiconductor memory device includes at least two transistors, each including a gate that traverses, in a first direction, an active region of a first substrate defined by an isolation layer, and junction regions disposed in the active region on opposite sides of the gate, and coupled to a memory cell array through a bit line; and a plurality of contacts, coupled respectively to the junction regions, that pass through a dielectric layer that covers the transistor. Among the plurality of contacts, a contact coupled to a junction region to which an erase voltage is loaded is disposed at a center portion of the active region in the first direction, and a contact coupled to a junction region to which the erase voltage is not loaded is disposed at an edge portion of the active region in the first direction.Type: GrantFiled: June 9, 2020Date of Patent: November 16, 2021Assignee: SK hynix Inc.Inventor: Sung Lae Oh
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Patent number: 10304842Abstract: The semiconductor device according to the present invention includes a ferroelectric film and an electrode stacked on the ferroelectric film. The electrode has a multilayer structure of an electrode lower layer in contact with the ferroelectric film and an electrode upper layer stacked on the electrode lower layer. The electrode upper layer is made of a conductive material having an etching selection ratio with respect to the materials for the ferroelectric film and the electrode lower layer. The upper surface of the electrode upper layer is planarized.Type: GrantFiled: May 25, 2016Date of Patent: May 28, 2019Assignee: ROHM CO., LTD.Inventor: Yuichi Nakao
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Patent number: 9853541Abstract: A switched-capacitor DC-to-DC converter includes a logic cell and a capacitor cell vertically overlapping with the logic cell. The logic cell has a plurality of active elements disposed over a first substrate. The capacitor cell has a capacitor over a second substrate. A first interlayer insulation layer disposed over the first substrate is bonded to a second interlayer insulation layer disposed over the second substrate. A first through via connected to any one of interconnection patterns of the logic cell and a second through via connected to a lower electrode pattern of the capacitor cell are connected to each other through a first external circuit pattern. A third through via connected to an upper electrode pattern of the capacitor cell and a fourth through via connected to another one of the interconnection patterns of the logic cell are connected to each other through a second external circuit pattern.Type: GrantFiled: May 2, 2017Date of Patent: December 26, 2017Assignee: SK Hynix Inc.Inventor: Jae Ho Hwang
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Patent number: 9673708Abstract: A switched-capacitor DC-to-DC converter includes a logic cell and a capacitor cell vertically overlapping with the logic cell. The logic cell has a plurality of active elements disposed over a first substrate. The capacitor cell has a capacitor over a second substrate. A first interlayer insulation layer disposed over the first substrate is bonded to a second interlayer insulation layer disposed over the second substrate. A first through via connected to any one of interconnection patterns of the logic cell and a second through via connected to a lower electrode pattern of the capacitor cell are connected to each other through a first external circuit pattern. A third through via connected to an upper electrode pattern of the capacitor cell and a fourth through via connected to another one of the interconnection patterns of the logic cell are connected to each other through a second external circuit pattern.Type: GrantFiled: November 24, 2015Date of Patent: June 6, 2017Assignee: SK Hynix Inc.Inventor: Jae Ho Hwang
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Patent number: 8637364Abstract: An amorphous carbon film and an interlayer insulation film are formed in a memory cell region and a peripheral circuit region, respectively. An insulating film is formed on the amorphous carbon film and the interlayer insulation film. A portion of the insulating film that corresponds to capacitors on the amorphous carbon film is removed so that lower electrodes of the capacitors are supported from opposite sides of the lower electrodes. An insulating film pattern continuously extends from the memory cell region to the peripheral circuit region wholly covered with the insulating film pattern. Subsequently, the amorphous carbon film is removed to leave the capacitors supported by the insulating film pattern on both sides of the lower electrodes.Type: GrantFiled: April 25, 2012Date of Patent: January 28, 2014Inventor: Yasuhiko Ueda
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Patent number: 8410534Abstract: Disclosed are integrated circuit structures each having a silicon germanium film incorporated as a local interconnect and/or an electrical contact. These integrated circuit structures provide improved local interconnects between devices and/or increased capacitance to devices without significantly increasing structure surface area or power requirements. Specifically, disclosed are integrated circuit structures that incorporate a silicon germanium film as one or more of the following features: as a local interconnect between devices; as an electrical contact to a device (e.g., a deep trench capacitor, a source/drain region of a transistor, etc.); as both an electrical contact to a deep trench capacitor and a local interconnect between the deep trench capacitor and another device; and as both an electrical contact to a deep trench capacitor and as a local interconnect between the deep trench capacitor and other devices.Type: GrantFiled: February 8, 2012Date of Patent: April 2, 2013Assignee: International Business Machines CorporationInventor: Steven H. Voldman
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Patent number: 8294189Abstract: A memory device is disclosed, comprising a substrate, and a capacitor with a specific shape along an orientation parallel to a surface of the substrate, wherein the specific shape includes a curved outer edge, a curved inner edge having a positive curvature, a first line and a second line connecting the curved outer edge with the curved inner edge. A word line is coupled to the capacitor. In an embodiment of the invention, the capacitor is a deep trench capacitor with a vertical transistor. In another embodiment of the invention, the capacitor is a stacked capacitor.Type: GrantFiled: April 24, 2009Date of Patent: October 23, 2012Assignee: Inotera Memories, Inc.Inventors: Hou-Hong Chou, Chien-Sung Chu
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Patent number: 8129772Abstract: Disclosed are integrated circuit structures each having a silicon germanium film incorporated as a local interconnect and/or an electrical contact. These integrated circuit structures provide improved local interconnects between devices and/or increased capacitance to devices without significantly increasing structure surface area or power requirements. Specifically, disclosed are integrated circuit structures that incorporate a silicon germanium film as one or more of the following features: as a local interconnect between devices; as an electrical contact to a device (e.g., a deep trench capacitor, a source/drain region of a transistor, etc.); as both an electrical contact to a deep trench capacitor and a local interconnect between the deep trench capacitor and another device; and as both an electrical contact to a deep trench capacitor and as a local interconnect between the deep trench capacitor and other devices.Type: GrantFiled: June 15, 2010Date of Patent: March 6, 2012Assignee: International Business Machines CorporationInventor: Steven H. Voldman
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Patent number: 7807517Abstract: Provided are methods for fabricating semiconductor devices incorporating a fin-FET structure that provides body-bias control, exhibits some characteristic advantages associated with SOI structures, provides increased operating current and/or reduced contact resistance. The methods for fabricating semiconductor devices include forming insulating spacers on the sidewalls of a protruding portion of a first insulation film; forming a second trench by removing exposed regions of the semiconductor substrate using the insulating spacers as an etch mask, and thus forming fins in contact with and supported by the first insulation film. After forming the fins, a third insulation film is formed to fill the second trench and support the fins. A portion of the first insulation film is then removed to open a space between the fins in which additional structures including gate dielectrics, gate electrodes and additional contact, insulating and storage node structures may be formed.Type: GrantFiled: July 28, 2008Date of Patent: October 5, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Suk-Pil Kim, Yoon-Dong Park, Won-Joo Kim, Dong-Gun Park, Eun-Suk Cho, Suk-Kang Sung, Byung-Yong Choi, Tae-Yong Kim, Choong-Ho Lee
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Patent number: 7709878Abstract: A capacitor structure including a substrate, a butting conductive layer, a second dielectric layer, a plurality of openings, a bottom electrode layer, a capacitor dielectric layer, a top electrode layer, and a second metal interconnect layer is provided. The substrate has a first dielectric layer and a first metal interconnect layer located in the first dielectric layer in a non-capacitor region. The butting conductive layer is disposed over the first dielectric layer in a capacitor region. The second dielectric layer is disposed over the first dielectric layer and covers the butting conductive layer. The openings include a first opening exposing a portion of the butting conductive layer and a second opening exposing the first metal interconnect layer. The bottom electrode layer, the capacitor dielectric layer, and the top electrode layer are conformally stacked in the first opening sequentially. The second metal interconnect layer is disposed in the openings.Type: GrantFiled: September 20, 2007Date of Patent: May 4, 2010Assignee: United Microelectronics Corp.Inventor: Chung-Chih Chen
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Patent number: 7642107Abstract: A pixel with a photosensor and a transfer transistor having a split transfer gate. A first section of the transfer gate is connectable to a first voltage source while a second section of the transfer gate is connectable to a second voltage source. Thus, during a charge integration period of a photosensor, the two sections of the transfer gate may be oppositely biased to decrease dark current while controlling blooming of electrons within and out of the pixel cell. During charge transfer the two gate sections may be commonly connected to a positive voltage sufficient to transfer charge from the photosensor to a floating diffusion region.Type: GrantFiled: December 21, 2006Date of Patent: January 5, 2010Assignee: Aptina Imaging CorporationInventor: John Ladd
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Patent number: 7563667Abstract: In a method for forming a semiconductor device, a device isolation layer is formed in a capacitor region of a silicon substrate, and a bottom electrode and a dielectric layer are formed on the device isolation layer. Insulation sidewalls are formed on both sides of the bottom electrode. A top electrode is formed on the dielectric layer, and simultaneously a gate electrode is formed in a transistor region of the silicon substrate. Source/drain impurity regions are formed in the silicon substrate at both sides of the gate electrode.Type: GrantFiled: December 13, 2007Date of Patent: July 21, 2009Assignee: Dongbu HiTek Co., Ltd.Inventors: Choul Joo Ko, Yong Jun Lee
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Patent number: 7507629Abstract: A semiconductor device includes a semiconductor substrate including silicon and an oxide layer on the substrate. The oxide layer includes silicon. An interfacial dielectric layer is disposed on the oxide layer opposite the substrate. The interfacial dielectric layer includes HfO2, ZrO2, a zirconium silicate alloy, and/or a hafnium silicate alloy having a thickness between about 0.5 nm and 1.0 nm. A primary dielectric layer is disposed on the interfacial dielectric layer opposite the substrate. The primary dielectric layer includes AlO3; TiO2; a group IIIB or VB transition metal oxide; a trivalent lanthanide series rare earth oxide; a silicate alloy; an aluminate alloy; a complex binary oxide having two transition metal oxides and/or a complex binary oxide having a transition metal oxide and a lanthanide rare earth oxide. A thickness of the primary dielectric layer is at least about five times greater than the thickness of the interfacial dielectric layer.Type: GrantFiled: September 10, 2004Date of Patent: March 24, 2009Inventors: Gerald Lucovsky, Christopher L. Hinkle
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Patent number: 7491604Abstract: A trench memory filled with a monolithic conducting material and methods for forming the same are disclosed. The trench memory includes a trench that has only a single, monolithic conducting material within the trench. The method includes forming a trench with a collar in the trench; forming a node dielectric on a sidewall of the trench; and filling the trench with a monolithic conducting material, such as polysilicon.Type: GrantFiled: March 7, 2006Date of Patent: February 17, 2009Assignee: International Business Machines CorporationInventor: Kangguo Cheng