Patents Examined by Hsin-Yi Hsieh
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Patent number: 8847266Abstract: There is provided a semiconductor light emitting device that minimizes reflection or absorption of emitted light, maximizes luminous efficiency with the maximum light emitting area, enables uniform current spreading with a small area electrode, and enables mass production with high reliability and high quality. A semiconductor light emitting device according to an aspect of the invention includes first and second conductivity type semiconductor layers, an active layer formed therebetween, first electrode layer, and a second electrode part electrically connecting the semiconductor layers. The second electrode part includes an electrode pad unit, an electrode extending unit, and an electrode connecting unit connecting the electrode pad unit and electrode extending unit.Type: GrantFiled: January 3, 2008Date of Patent: September 30, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Pun Jae Choi, Ki Yeol Park, Sang Bum Lee, Seon Young Myoung, Myong Soo Cho
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Patent number: 8835897Abstract: A nonvolatile memory device according to an embodiment of the present invention includes: a first wire embedded in a first wiring groove extending in an X direction formed in a first interlayer insulating film; a second interlayer insulating film formed above the first interlayer insulating film; a second wire embedded in a second wiring groove extending in a Y direction formed in the second interlayer insulating film; and a variable resistance memory cell including a variable resistive layer and a rectifying layer arranged to be held between the first wire and the second wire in a position where the first wire and the second wire intersect. A dimension in a plane perpendicular to a thickness direction of the variable resistance memory cell is specified by widths of the first and second wires.Type: GrantFiled: September 2, 2009Date of Patent: September 16, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Mutsumi Okajima
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Patent number: 8803210Abstract: An X-ray detector includes a substrate; a gate line that is extended in a first direction on the substrate; a gate electrode that is extended from the gate line; a semiconductor layer that is positioned on the gate electrode; a source electrode and drain electrode that are positioned on the semiconductor layer; a lower electrode that is extended from the drain electrode; a photodiode that is positioned on the lower electrode; a first insulation layer that is positioned on the source electrode and the drain electrode and that includes a first opening that exposes the source electrode; and a data line that is extended in a second direction intersecting a first direction on the first insulation layer to intersect the gate line with the first insulation layer interposed between the data line and the gate line, and the data line being electrically connected to the source electrode through the first opening.Type: GrantFiled: December 22, 2010Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Kwan-Wook Jung, Dong-Hyuk Kim, Woo-Jae Lim, Jea-Eun Ryu
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Patent number: 8796705Abstract: A light emitting device is provided. The light emitting device includes a first conductive type semiconductor layer, an active layer including a plurality of well layers and a plurality of barrier layers on the first conductive type semiconductor layer, and a second conductive type semiconductor layer on the active layer. An upper surface of at least first barrier layer among the barrier layers includes an uneven surface. The first barrier layer is disposed more closely to the second conductive type semiconductor layer than to the first conductive type semiconductor layer.Type: GrantFiled: December 23, 2010Date of Patent: August 5, 2014Assignee: LG Innotek Co., Ltd.Inventors: Oh Min Kwon, Jong Pil Jeong
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Patent number: 8778763Abstract: A method for forming a memory cell transistor is disclosed which includes providing a substrate, forming a trench structure in the substrate, depositing a conductive substance on the surface of the substrate to form a conductive member inside the trench structure, forming one or more dielectric layers on the surface of the substrate, forming one or more first conductive layers on top of the dielectric layers, and etching the first conductive layers and the dielectric layers to form a hole structure extending through the first conductive and the dielectric layers, reaching to the substrate surface. One or more second conductive layers may be formed on top of the first conductive layers, with the second conductive layer material filling the hole structure.Type: GrantFiled: December 8, 2011Date of Patent: July 15, 2014Assignee: Hermes Microvision, Inc.Inventor: Hong Xiao
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Patent number: 8772861Abstract: One embodiment of the invention relates to a field effect trench transistor with a multiplicity of transistor cells that are arranged like an array and whose gate electrodes are arranged in active trenches formed in a semiconductor body. Inactive trenches are arranged in the array of the transistor cells, there being no gate electrodes situated in said inactive trenches, and a series of polysilicon diodes are integrated in one or more of the inactive trenches which diodes, for protection against damage to the gate oxide through ESD pulses, are contact-connected to a source metallization at one of their ends and to a gate metallization at their other end, and/or alternatively or additionally one or more polysilicon zener diodes connected in series is or are integrated in the inactive trench or trenches and contact-connected to the gate metallization by one of its or their ends and to drain potential by its or their other end.Type: GrantFiled: September 20, 2005Date of Patent: July 8, 2014Assignee: Infineon Technologies AGInventors: Markus Zundel, Norbert Krischke, Thorsten Meyer
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Patent number: 8772814Abstract: LED dies are suspended in an ink and printed on a first support substrate to form a light emitting layer having a light emitting surface emitting primary light, such as blue light. A mixture of a transparent binder, phosphor powder, and transparent glass beads is formed as an ink and printed over the light emitting surface. The mixture forms a wavelength conversion layer when cured. The beads are preferably sized so that the tops of the beads protrude completely through the conversion layer. Some of the primary light passes through the beads with virtually no attenuation or backscattering, and some of the primary light is converted by the phosphor to secondary light. The combination of the secondary light and the primary light passing though the beads may form white light. The overall color is highly controllable by controlling the percentage weight of the beads.Type: GrantFiled: May 31, 2013Date of Patent: July 8, 2014Assignee: Nthdegree Technologies Worldwide Inc.Inventors: William J. Ray, Reuben Rettke, Mark D. Lowenthal, Alexander Ray
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Patent number: 8748920Abstract: A light-emitting device includes a substrate that is at least partially transparent to optical radiation and has a first index of refraction. A diode region is disposed on a first surface of the substrate and is configured to emit light responsive to a voltage applied thereto. An encapsulation layer is disposed on a second surface of the substrate and has a second index of refraction. An antireflective layer is disposed between a second surface of the substrate and the encapsulation layer. The antireflective layer has a graded index of refraction having values in a range between about the first index of refraction at a first surface of the antireflective layer and about the second index of refraction at a second surface of the antireflective layer. The encapsulation layer may also be omitted and the antireflective layer may separate the substrate, which has a first index of refraction, from air, which has a second index of refraction. Non “flip-chip” embodiments are also disclosed.Type: GrantFiled: June 30, 2006Date of Patent: June 10, 2014Assignee: Cree, Inc.Inventor: Gerald H. Negley
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Patent number: 8742540Abstract: A metal-insulator-metal (MIM) capacitor and a method for forming the same are provided. The MIM capacitor includes an insulator on a bottom metal plate, a top metal plate on the insulator, a dielectric layer on the top metal plate and on at least sidewalls of the top metal plate and the insulator, and an anti-reflective coating (ARC) layer over the top metal plate and the bottom metal plate. The dielectric layer preferably extends on an exposed portion of the bottom metal plate not covered by the top metal plate and the insulator.Type: GrantFiled: August 31, 2005Date of Patent: June 3, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Yao Hsiang Liang
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Patent number: 8742512Abstract: A semiconductor device according to the invention includes: a first region on a semiconductor substrate, in which a first transistor is formed, the first transistor including first gate insulating film 4 containing a high dielectric constant material and first metal gate electrode 5 formed on first gate insulating film 4; a second region adjacent to the first region on the semiconductor substrate, in which a second transistor is formed, the second transistor including second gate insulating film 4 and second metal gate electrode 12 formed on the second gate insulating film, a layered structure of electrode materials of the second transistor being different from a layered structure of electrode materials of the first transistor; and a first and a second line, the lines being of different potentials, wherein a border between the first and the second region overlaps with at most only the first or the second line.Type: GrantFiled: September 11, 2012Date of Patent: June 3, 2014Inventor: Takeshi Kishida
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Patent number: 8736022Abstract: A semiconductor device has a semiconductor chip, an internal circuit region arranged on an inner side of the semiconductor chip, and a bonding pad region arranged adjacently to the internal circuit region. A diode-type ESD protection circuit is formed of a junction between a first conductivity type diffusion layer for fixing a substrate potential of the semiconductor chip and a pair of second conductivity type diffusion layers arranged on an inner side of the first conductivity type diffusion layer. The first conductivity type diffusion layer is arranged on an entire peripheral region or a part of the peripheral region of the semiconductor chip with the peripheral region being outside of the internal circuit region and the bonding pad region. One of the pair of second conductivity type diffusion layers comprising a diffusion layer for breakdown adjustment at a junction portion with the first conductivity type diffusion layer.Type: GrantFiled: February 11, 2009Date of Patent: May 27, 2014Assignee: Seiko Instruments Inc.Inventor: Yuichiro Kitajima
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Patent number: 8723284Abstract: The invention describes a solid-state CMOS image sensor array and in particular describes in detail the image sensor array pixels, with global and rolling shutter capabilities, that utilize charge storage gates located on top of a pinned photodiode. The sensor array is illuminated from the back side and the location of the storage gate on top of the pinned photodiode saves valuable pixel area, which does not compromise the Dynamic Range of the image sensor.Type: GrantFiled: March 11, 2011Date of Patent: May 13, 2014Assignee: Aptina Imaging CorporationInventor: Jaroslav Hynecek
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Patent number: 8659169Abstract: One or more integrated circuit chips are flip-chip bonded to a first surface of a substrate. A contact array is fabricated on a second surface of the substrate. Corner structures attached to the integrated circuit chip cover at least two corners of the IC chip.Type: GrantFiled: September 27, 2010Date of Patent: February 25, 2014Assignee: Xilinx, Inc.Inventors: Mohsen H. Mardi, David M. Mahoney
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Patent number: 8624379Abstract: A semiconductor device is improved in reliability. A switching power MOSFET and a sense MOSFET for sensing a current flowing in the power MOSFET, which is smaller in area than the power MOSFET, are formed in one semiconductor chip. The semiconductor chip is mounted over a chip mounting portion via a conductive bonding material, and sealed in a resin. Over the main surface of the semiconductor chip, a metal plate is bonded to a source pad electrode of the power MOSFET. In the plan view, the metal plate does not overlap a sense MOSFET region where the sense MOSFET is formed. The metal plate is bonded to the source pad electrode so as to surround three of the sides of the sense MOSFET region.Type: GrantFiled: September 12, 2012Date of Patent: January 7, 2014Assignee: Renesas Electronics CorporationInventors: Hiroyuki Nakamura, Yukihiro Sato, Atsushi Fujiki, Tatsuhiro Seki
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Patent number: 8617952Abstract: A method includes providing a semiconductor wafer having a plurality of pillar structures extending orthogonally from the semiconductor wafer. Each pillar structure forms a vertical pillar transistor having a top surface and a side surface orthogonal to the top surface. Then a hardening species is implanted into the vertical pillar transistor top surface. Then the vertical pillar transistor side surface is oxidized to form a side surface oxide layer. The side surface oxide layer is removed to form vertical pillar transistor having rounded side surfaces.Type: GrantFiled: September 28, 2010Date of Patent: December 31, 2013Assignee: Seagate Technology LLCInventors: Young Pil Kim, Hyung-Kew Lee, Peter Nicholas Manos, Chulmin Jung, Maroun Georges Khoury, Dadi Setiadi
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Patent number: 8618663Abstract: The present invention provides a method of fabricating an interconnect structure in which a patternable low-k material replaces the need for utilizing a separate photoresist and a dielectric material. Specifically, this invention relates to a simplified method of fabricating single-damascene and dual-damascene low-k interconnect structures with at least one patternable low-k dielectric and at least one inorganic antireflective coating. In general terms, a method is provided that includes providing at least one patternable low-k material on a surface of an inorganic antireflective coating that is located atop a substrate, said inorganic antireflective coating is vapor deposited and comprises atoms of M, C and H wherein M is at least one of Si, Ge, B, Sn, Fe, Ta, Ti, Ni, Hf and La; forming at least one interconnect pattern within the at least one patternable low-k material; and curing the at least one patternable low-k material.Type: GrantFiled: September 20, 2007Date of Patent: December 31, 2013Assignee: International Business Machines CorporationInventors: Qinghuang Lin, Deborah A. Neumayer
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Patent number: 8614479Abstract: A vertical transistor structure includes a substrate, a source, a first gate, a first insulating layer, a second gate, a gate insulating layer, a drain, a second insulating layer, and a semiconductor channel layer. The source is configured on the substrate. The first gate is configured on the source and has at least one first through hole. The first insulating layer is between the first gate and the source. The second gate is configured on the first gate and has at least one second through hole. The gate insulating layer is between the first and second gates and has at least one third through hole. The first, second, and third through holes are communicated with one another. The drain is configured on the second gate. The second insulating layer is configured between the second gate and the drain. The semiconductor channel layer fills the first, second, and third through holes.Type: GrantFiled: March 12, 2011Date of Patent: December 24, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Shou-Cheng Weng, Huai-An Li
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Patent number: 8610157Abstract: A light emitting device including a contact layer, a blocking layer over the contact layer, a protection layer adjacent the blocking layer, a light emitter over the blocking layer, and an electrode layer coupled to the light emitter. The electrode layer overlaps the blocking layer and protection layer, and the blocking layer has an electrical conductivity that substantially blocks flow of current from the light emitter in a direction towards the contact layer. In addition, the protection layer may be conductive to allow current to flow to the light emitter or non-conductive to block current from flowing from the light emitter towards the contact layer.Type: GrantFiled: December 9, 2010Date of Patent: December 17, 2013Assignee: LG Innotek Co., Ltd.Inventors: Kwang Ki Choi, Hwan Hee Jeong, Sang Youl Lee, June O Song
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Patent number: 8604589Abstract: Provided is a method capable of forming a polycrystalline silicon resistor with preferable ratio accuracy so as to design a resistor circuit with high accuracy. In the method, a length of a low concentration impurity region constituting the polycrystalline silicon resistor in a longitudinal direction is varied in accordance with an occupying area of a metal portion overlapping the low concentration impurity region, thereby correcting a variation in resistance without varying an external shape and the occupying area of the resistor.Type: GrantFiled: July 26, 2006Date of Patent: December 10, 2013Assignee: Seiko Instruments Inc.Inventors: Akiko Tsukamoto, Hirofumi Harada
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Patent number: 8592851Abstract: A surface mount optical semiconductor device and circuit can efficiently transfer and dissipate heat even when being mounted together with electronic circuit components. The optical semiconductor device can include a lead frame having a concave portion for mounting a light-emitting element therein and a pair of electrode terminals connected to a board. A sealing resin portion can be provided for sealing a surrounding region of the concave portion. A bottom surface of the concave portion is located at a predetermined distance from a connecting surface on which the pair of electrode terminals is connected to the board. The bottom surface of the concave portion can also be exposed from a bottom surface of the sealing resin portion. Thus, the bottom surface of the concave portion and the device in general can be air-cooled efficiently.Type: GrantFiled: July 18, 2006Date of Patent: November 26, 2013Assignee: Stanley Electric Co., Ltd.Inventor: Hiroyuki Takayama