Utilizing Backside Irradiation Patents (Class 438/160)
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Patent number: 12235554Abstract: A display substrate, a display panel and a display apparatus. The display substrate includes a first base substrate; a plurality of gate lines and a plurality of data lines which are arranged on a side of the first base substrate; the plurality of gate lines and the plurality of data lines are arranged to be intersected with each other and insulated from each other; a planarization layer, arranged on a side of the gate lines and the data lines away from the first base substrate, and including a first via hole; and a supporting structure, arranged on a side of the planarization layer away from the first base substrate and filled into the first via hole; and in a direction perpendicular to the first base substrate, a height of the supporting structure is greater than a depth of the first via hole.Type: GrantFiled: June 22, 2022Date of Patent: February 25, 2025Assignee: BOE Technology Group Co., Ltd.Inventors: Lizhong Wang, Ce Ning, Dongfang Wang, Hui Guo
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Patent number: 11158724Abstract: The disclosure provides a method of manufacturing a display panel, including: sequentially forming a buffer layer, an oxide semiconductor layer, and a photoresist layer on a substrate; removing the photoresist layer corresponding to a gate defining region to obtain a photoresist section; forming a first metal layer on the photoresist layer and the oxide semiconductor layer which is not covered by the photoresist layer; and peeling off the photoresist section to remove the first metal layer on the photoresist section, wherein the first metal layer which corresponds to the gate defining region remains to obtain a gate.Type: GrantFiled: August 6, 2019Date of Patent: October 26, 2021Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Jiexin Zheng
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Patent number: 10818517Abstract: A method for manufacturing a semiconductor package structure includes providing a semiconductor chip, encapsulating the semiconductor chip via a package body, the package body having a first surface opposite to a second surface, and coating a first self-assembled monolayer (SAM) over the first surface and the second surface of the package body.Type: GrantFiled: February 25, 2019Date of Patent: October 27, 2020Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.Inventors: Huang Han Chen, Ping-Feng Yang
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Patent number: 10379413Abstract: This present disclosure provides an array substrate, a manufacturing method thereof, and a display apparatus, aiming at solving the issue of light reflection on the array substrates and improving the display effects of display apparatuses. The array substrate includes a transparent substrate; a plurality of components disposed on a first side of the transparent substrate; and a shielding pattern, disposed on a second side of the transparent substrate, and configured to shield light reflected from a surface of at least one of the plurality of components.Type: GrantFiled: November 2, 2016Date of Patent: August 13, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Shoukun Wang, Liangliang Li, Yuchun Feng, Huibin Guo
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Patent number: 10128278Abstract: A thin film transistor substrate includes a switching element comprising a gate electrode electrically connected to a gate line extending in a first direction, an active pattern overlapping with the gate electrode, a source electrode disposed on the active pattern and electrically connected to a data line extending in a second direction crossing the first direction, and a drain electrode spaced apart from the source electrode. The thin film transistor substrate further includes an organic layer disposed on the switching element, a first electrode disposed on the organic layer, and a second electrode overlapping with the first electrode, and electrically connected to the drain electrode. A thickness of the second electrode is thicker than a thickness of the first electrode.Type: GrantFiled: January 15, 2016Date of Patent: November 13, 2018Assignee: Samsung Display Co., Ltd.Inventors: Byoung-Yong Kim, Woong-Ki Jeon, Hyun-Jin Kim, Jean-Ho Song
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Patent number: 9893098Abstract: Embodiments of the present disclosure provide an array substrate and a fabrication method thereof, and a display device. The fabrication method of the array substrate includes: forming a gate metal layer, a gate insulating layer, an active layer and a source-drain metal layer on a base substrate. The forming the gate insulating layer, the active layer and the source-drain metal layer on the base substrate comprises: forming a gate insulating film, an active layer film and a source-drain metal film on the base substrate; forming the gate insulating layer, the active layer and the source-drain metal layer by a single patterning process. The number of the exposing process is reduced, the production cycle is shortened and the fabrication cost is reduced.Type: GrantFiled: September 12, 2016Date of Patent: February 13, 2018Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jian Guo
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Patent number: 9754978Abstract: A semiconductor device (1001) includes: a first transistor (10A) having a first channel length L1 and a first channel width W1; and a second transistor (10B) having a second channel length L2 and a second channel width W2, wherein the first transistor (10A) and the second transistor (10B) include an active layer formed from a common oxide semiconductor film, the first transistor (10A) is a memory transistor which is capable of being irreversibly changed from a semiconductor state where a drain current Isd depends on a gate voltage Vg to a resistor state where the drain current Isd does not depend on the gate voltage Vg, and the first channel length L1 is smaller than the second channel length L2.Type: GrantFiled: September 2, 2014Date of Patent: September 5, 2017Assignee: Sharp Kabushiki KaishaInventors: Naoki Ueda, Sumio Katoh
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Patent number: 9645457Abstract: An array substrate has regions in which an intermediate resist film thickness is formed and processed by an intermediate exposure amount which does not completely expose a resist, respectively on a drain electrode, source terminal, and a common connection wiring which are made of a second conductive film. Thin film patterns or a common wiring made of a first conductive film is formed in substantially entire regions on the bottom layers of the regions so that the heights from a substrate are substantially the same.Type: GrantFiled: November 21, 2007Date of Patent: May 9, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuichi Masutani, Shigeaki Noumi, Takeshi Shimamura, Masaru Aoki
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Patent number: 9576989Abstract: An array substrate and the method for making the same, and a display device are provided. The method includes step 1, forming a pattern comprising a gate electrode and a gate line on a substrate, and providing photoresist at a position reserved for a first via hole above the gate line in a non-display area; step 2, forming a pattern of functional layers of a thin film transistor (TFT) and a data line on the substrate after the above step; step 3, forming a pattern comprising a first pixel electrode on the substrate after the above steps, and then forming a passivation layer; step 4, removing the photoresist provided above the position reserved for the first via hole and film layer thereabove from the substrate after the above steps, so as to form the first via hole.Type: GrantFiled: April 27, 2013Date of Patent: February 21, 2017Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Qin, Wenqi Li
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Patent number: 9466624Abstract: Embodiments of the present disclosure provide an array substrate and a fabrication method thereof, and a display device. The fabrication method of the array substrate includes: forming a gate metal layer, a gate insulating layer, an active layer and a source-drain metal layer on a base substrate. The forming the gate insulating layer, the active layer and the source-drain metal layer on the base substrate comprises: forming a gate insulating film, an active layer film and a source-drain metal film on the base substrate; forming the gate insulating layer, the active layer and the source-drain metal layer by a single patterning process. The number of the exposing process is reduced, the production cycle is shortened and the fabrication cost is reduced.Type: GrantFiled: July 21, 2014Date of Patent: October 11, 2016Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Jian Guo
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Patent number: 9419066Abstract: To provide a bright and highly reliable light-emitting device. An anode (102), an EL layer (103), a cathode (104), and an auxiliary electrode (105) are formed sequentially in lamination on a reflecting electrode (101). Further, the anode (102), the cathode (104), and the auxiliary electrode (105) are either transparent or semi-transparent with respect to visible radiation. In such a structure, lights generated in the EL layer (103) are almost all irradiated to the side of the cathode (104), whereby an effect light emitting area of a pixel is drastically enhanced.Type: GrantFiled: August 15, 2014Date of Patent: August 16, 2016Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takeshi Fukunaga, Junya Maruyama
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Patent number: 9202929Abstract: An object is to increase the on-state current of a thin film transistor. A solution is to provide a projection in a back-channel portion of the thin film transistor. The projection is provided so as to be off a tangent in the back-channel portion between a source or a drain and a channel formation region. With the projection, a portion where electric charge is trapped and a path of the on-state current can be apart from each other, so that the on-state current can be increased. The shape of a side surface of the back-channel portion may be curved, or may be represented as straight lines in a cross section. Further, a method for forming such a shape by performing one etching step is provided.Type: GrantFiled: December 20, 2010Date of Patent: December 1, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yasuhiro Jinbo, Hideomi Suzawa, Hiromichi Godo, Shinya Sasagawa
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Patent number: 9116430Abstract: In the proposed plasmonic nanolithography technique a transparent mask is brought into physical contact with a metal on a substrate that is coated with a photoresist. The mask is not made of metal or other material that supports surface plasmons. The metal layer is exposed to radiation of a characteristic vacuum wavelength through the mask and the photoresist or through the substrate. The mask features and the vacuum wavelength of the radiation are chosen so that the radiation excites surface plasmons at the interface between the metal and the photoresist. The excitation of surface plasmons allows for the exposure and generation of features which are well-below the free space diffraction limit and small compared to the size of the features in the mask.Type: GrantFiled: March 28, 2014Date of Patent: August 25, 2015Assignee: Rolith, Inc.Inventors: Boris Kobrin, Edward Barnard
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Patent number: 9117915Abstract: A thin film transistor (TFT) that includes a gate, an oxide semiconductor layer, a gate insulator, a source, and a drain is provided. The gate insulator is located between the oxide semiconductor layer and the gate. The source and the drain are in contact with different portions of the oxide semiconductor layer. Each of the source and the drain has a ladder-shaped sidewall that is partially covered by the oxide semiconductor layer. A method for fabricating the above-mentioned TFT is also provided.Type: GrantFiled: November 23, 2011Date of Patent: August 25, 2015Assignee: Au Optronics CorporationInventors: Chang-Ming Lu, Lun Tsai, Chia-Yu Chen
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Patent number: 8987743Abstract: The present disclosure discloses a method for manufacturing a TFT array substrate, comprising: depositing a gate metal layer, a gate insulating layer, a semiconductor layer and a source-drain electrode layer in this order on a base substrate, performing a first photolithograph process to form a common electrode line, a gate line, a gate electrode, a source electrode, a drain electrode and a channel defined between the source electrode and the drain electrode; depositing a passivation layer, performing a second photolithograph process to form a first via hole and a second via hole in the passivation layer; and depositing a pixel electrode layer and a data line layer in this order, perform a third photolithograph process to form a data line connected to the source electrode through the first via hole and a pixel electrode connected to the drain electrode through the second via hole.Type: GrantFiled: July 3, 2014Date of Patent: March 24, 2015Assignees: Boe Technology Group Co., Ltd., Hefei Boe Optoelectroncis Technology Co., Ltd.Inventor: Yunqi Zhang
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Patent number: 8981516Abstract: A back-side illuminated image sensor formed from a thinned semiconductor substrate, wherein: a transparent conductive electrode, insulated from the substrate by an insulating layer, extends over the entire rear surface of the substrate; and conductive regions, insulated from the substrate by an insulating coating, extend perpendicularly from the front surface of the substrate to the electrode.Type: GrantFiled: April 12, 2012Date of Patent: March 17, 2015Assignees: STMicroeletronics S.A., STMicroelectronics (Crolles 2) SASInventors: Jens Prima, François Roy, Michel Marty
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Patent number: 8980704Abstract: A manufacturing method of a thin film transistor includes hard-baking and etching processes for a stop layer. Two through holes are exposed and developed in a photoresistor layer, in which a distance between the two through holes is substantially equal to the channel length of the thin film transistor. Further, the etching stop layer is dry-etched to obtain the thin film transistor having an expected channel length.Type: GrantFiled: August 25, 2014Date of Patent: March 17, 2015Assignee: Ye Xin Technology Consulting Co., Ltd.Inventors: I-Wei Wu, I-Min Lu, Wei-Chih Chang, Hui-Chu Lin, Yi-Chun Kao, Kuo-Lung Fang
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Patent number: 8975124Abstract: One or more embodiments of the disclosed technology provide a thin film transistor, an array substrate and a method for preparing the same. The thin film transistor comprises a base substrate, and a gate electrode, a gate insulating layer, an active layer, an ohmic contact layer, a source electrode, a drain electrode and a passivation layer prepared on the base substrate in this order. The active layer is formed of microcrystalline silicon, and the active layer comprises an active layer lower portion and an active layer upper portion, and the active layer lower portion is microcrystalline silicon obtained by using hydrogen plasma to treat at least two layers of amorphous silicon thin film prepared in a layer-by-layer manner.Type: GrantFiled: May 15, 2012Date of Patent: March 10, 2015Assignees: Boe Technology Group Co., Ltd., Beijing Asahi Glass Electronics Co., Ltd.Inventors: Xueyan Tian, Chunping Long, Jiangfeng Yao
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Patent number: 8962405Abstract: In some aspects of the invention, a circuit pattern of a front surface structure is formed in a front surface of a semiconductor wafer and an alignment mark is formed on the front surface of a semiconductor wafer. A transparent supporting substrate is attached to the front surface of the semiconductor wafer by a transparent adhesive. Then, a resist is applied onto a rear surface of the semiconductor wafer. Then, the semiconductor wafer is mounted on a stage of an exposure apparatus, with the supporting substrate down. Then, the alignment mark formed on the front surface of the semiconductor wafer is recognized by a camera, and the positions of the semiconductor wafer and a photomask are aligned with each other. Then, the resist is patterned. Then, a circuit pattern is formed in the rear surface of the semiconductor wafer.Type: GrantFiled: March 13, 2013Date of Patent: February 24, 2015Assignee: Fuji Electric Co., Ltd.Inventors: Tsunehiro Nakajima, Haruo Nakazawa
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Patent number: 8878175Abstract: An object is to reduce a capacitance value of parasitic capacitance without decreasing driving capability of a transistor in a semiconductor device such as an active matrix display device. Further, another object is to provide a semiconductor device in which the capacitance value of the parasitic capacitance was reduced, at low cost. An insulating layer other than a gate insulating layer is provided between a wiring which is formed of the same material layer as a gate electrode of the transistor and a wiring which is formed of the same material layer as a source electrode or a drain electrode.Type: GrantFiled: July 3, 2012Date of Patent: November 4, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 8823001Abstract: The present disclosure discloses a method for manufacturing a TFT array substrate, comprising: depositing a gate metal layer, a gate insulating layer, a semiconductor layer and a source-drain electrode layer in this order on a base substrate, performing a first photolithograph process to form a common electrode line, a gate line, a gate electrode, a source electrode, a drain electrode and a channel defined between the source electrode and the drain electrode; depositing a passivation layer, performing a second photolithograph process to form a first via hole and a second via hole in the passivation layer; and depositing a pixel electrode layer and a data line layer in this order, perform a third photolithograph process to form a data line connected to the source electrode through the first via hole and a pixel electrode connected to the drain electrode through the second via hole.Type: GrantFiled: June 8, 2012Date of Patent: September 2, 2014Assignees: Boe Technology Group Co., Ltd., Hefei Boe Optoelectronics Technology Co., Ltd.Inventor: Yunqi Zhang
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Patent number: 8802514Abstract: Transistor devices having a self-aligned gate structure on transparent substrates and techniques for fabrication thereof are provided. In one aspect, a method of fabricating a transistor device includes the following steps. A channel material is formed on a transparent substrate. Source and drain electrodes are formed in contact with the channel material. A dielectric layer is deposited on the channel material. A photoresist is deposited on the dielectric layer and developed using UV light exposure through the transparent substrate. A gate metal(s) is deposited on the exposed portions of the dielectric layer and the undeveloped portions of the photoresist. The undeveloped portions of the photoresist are removed along with portions of the gate metal over the source and drain regions to form a gate of the device on the dielectric layer over the channel material which is self-aligned to the source and drain electrodes.Type: GrantFiled: October 21, 2013Date of Patent: August 12, 2014Assignee: International Business Machines CorporationInventors: Wilfried Ernst-August Haensch, Zihong Liu
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Patent number: 8796692Abstract: A thin-film semiconductor device includes: a gate electrode; a channel layer; a first amorphous semiconductor layer; a channel protective layer; a pair of second amorphous semiconductor layers formed on side surfaces of the channel layer; and a pair of contact layers which contacts the side surfaces of the channel layer via the second amorphous semiconductor layers. The gate electrode, the channel layer, the first amorphous semiconductor layer, and the channel protective layer are stacked so as to have outlines that coincide with one another in a top view. The first amorphous semiconductor layer has a density of localized states higher than those of the second amorphous semiconductor layers. The second amorphous semiconductor layers have band gaps larger than that of the first amorphous semiconductor layer.Type: GrantFiled: October 23, 2012Date of Patent: August 5, 2014Assignee: Panasonic CorporationInventors: Arinobu Kanegae, Takahiro Kawashima
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Patent number: 8748222Abstract: A method for manufacturing oxide thin film transistors includes steps of: forming a gate, a drain electrode, a source electrode, and an oxide semiconductor layer respectively. The oxide semiconductor layer is formed on the gate electrode; the drain electrode and the source electrode are formed at two opposite sides of the oxide semiconductor layer. The method further includes a step of depositing a dielectric layer of silicon oxide, and a reacting gas for depositing the silicon oxide includes silane and nitrous oxide. A flow rate of nitrous oxide is in a range from 10 to 200 standard cubic centimeters per minute (SCCM). Oxide thin film transistors manufactured by above method has advantages of low leakage, high mobility, and other integrated circuit member can be directly formed on the thin film transistor array substrate of a display device.Type: GrantFiled: May 5, 2010Date of Patent: June 10, 2014Assignee: E Ink Holdings Inc.Inventors: Ted-Hong Shinn, Henry Wang, Fang-An Shu, Yao-Chou Tsai
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Patent number: 8703560Abstract: The present invention provides a method for manufacturing a highly reliable semiconductor device with a small amount of leakage current. In a method for manufacturing a thin film transistor, etching is conducted using a resist mask to form a back channel portion in the thin film transistor, the resist mask is removed, a part of the back channel is etched to remove etching residue and the like left over the back channel portion, whereby leakage current caused by the residue and the like can be reduced. The etching step of the back channel portion can be conducted by dry etching using non-bias.Type: GrantFiled: June 24, 2013Date of Patent: April 22, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hidekazu Miyairi, Shinya Sasagawa, Akihiro Ishizuka
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Patent number: 8691639Abstract: Embodiments of the disclosed technology disclose manufacture methods of a thin film transistor and an array substrate and a mask therefor are provided. The manufacture method of the thin film transistor comprises: patterning a wire layer by using a exposure machine and a mask with a first exposure amount larger than a normal exposure amount during formation of source and drain electrodes; forming a semiconductor layer on the patterned wire layer; patterning the semiconductor layer by using the exposure machine and the mask with a second exposure amount smaller than the first exposure amount. The mask comprises a source region for forming the source electrode, a drain region for forming the drain electrode and a slit provided between the source region and the drain region, and the width of the slit is smaller than the resolution of the exposure machine.Type: GrantFiled: May 31, 2012Date of Patent: April 8, 2014Assignee: Boe Technology Group Co., Ltd.Inventors: Weifeng Zhou, Jianshe Xue
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Patent number: 8647934Abstract: A thin film transistor (TFT) including a gate, a gate insulator, an oxide semiconductor channel layer, a source, and a drain is provided. The gate insulator covers the gate, while the oxide semiconductor channel layer is configured on the gate insulator and located above the gate. The oxide semiconductor channel layer includes a first sub-layer and a second sub-layer located on the first sub-layer. An oxygen content of the first sub-layer is lower than an oxygen content of the second sub-layer. The source and the drain are configured on a portion of the second sub-layer. In addition, a fabricating method of the above-mentioned TFT is also provided.Type: GrantFiled: April 29, 2011Date of Patent: February 11, 2014Assignee: Au Optronics CorporationInventors: Liu-Chung Lee, Hung-Che Ting, Chia-Yu Chen
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Patent number: 8575714Abstract: Provided is a backside illuminated semiconductor light-receiving device enhancing a frequency characteristic without deteriorating assembling operability. The light-receiving device includes a rectangular substrate; a light receiving mesa portion formed on a center portion of one side on a front surface of the substrate and includes a PN junction portion; a P-type electrode formed on the light receiving mesa portion and conductive with one side of the PN junction portion; an N-type electrode mesa portion formed on one corner portion of the one side; an N-type electrode pulled out to the N-type electrode mesa portion and conductive with the other side of the PN junction portion; a P-type electrode mesa portion and a dummy electrode mesa portion formed in a region including three other corner portions; and a dummy electrode formed on the dummy electrode mesa portion.Type: GrantFiled: April 13, 2011Date of Patent: November 5, 2013Assignee: Oclaro Japan, Inc.Inventors: Takashi Toyonaka, Hiroshi Hamada, Masataka Yokosawa
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Patent number: 8569121Abstract: Transistor devices having a self-aligned gate structure on transparent substrates and techniques for fabrication thereof are provided. In one aspect, a method of fabricating a transistor device includes the following steps. A channel material is formed on a transparent substrate. Source and drain electrodes are formed in contact with the channel material. A dielectric layer is deposited on the channel material. A photoresist is deposited on the dielectric layer and developed using UV light exposure through the transparent substrate. A gate metal(s) is deposited on the exposed portions of the dielectric layer and the undeveloped portions of the photoresist. The undeveloped portions of the photoresist are removed along with portions of the gate metal over the source and drain regions to form a gate of the device on the dielectric layer over the channel material which is self-aligned to the source and drain electrodes.Type: GrantFiled: November 1, 2011Date of Patent: October 29, 2013Assignee: International Business Machines CorporationInventors: Wilfried Ernst-August Haensch, Zihong Liu
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Patent number: 8546179Abstract: A method of fabricating a self-aligned top-gate organic transistor comprises depositing a photoresist material over the dielectric material, and exposing the photoresist material to irradiation through the substrate using the source and drain electrodes as a mask. The exposure defines a region for deposition of the gate electrode.Type: GrantFiled: December 22, 2009Date of Patent: October 1, 2013Assignee: Cambridge Display Technology Ltd.Inventor: Euan Smith
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Patent number: 8501553Abstract: A TFT array substrate includes a substrate, at least one gate line and gate electrode, a gate insulating layer, and at least one channel component, source electrode, drain electrode and data line. The gate line and gate electrode are disposed on the substrate, wherein both of the gate line and gate electrode have first and second conductive layers, the first conductive layer is formed on the substrate, the first conductive layer contains molybdenum nitride , the second conductive layer is formed on the first conductive layer, and the second conductive layer contains copper. The gate insulating layer is disposed on the gate line, gate electrode and the substrate. The channel component is disposed on the gate insulating layer. The source electrode and drain electrode are disposed on the channel component, and data line is disposed on the gate insulating layer.Type: GrantFiled: June 20, 2012Date of Patent: August 6, 2013Assignee: Hannstar Display Corp.Inventors: Hsien Tang Hu, Chien Chih Hsiao, Chih Hung Tsai
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Patent number: 8502221Abstract: An object is to stabilize electric characteristics of a semiconductor device including an oxide semiconductor to increase reliability. The semiconductor device includes an insulating film; a first metal oxide film on and in contact with the insulating film; an oxide semiconductor film partly in contact with the first metal oxide film; source and drain electrodes electrically connected to the oxide semiconductor film; a second metal oxide film partly in contact with the oxide semiconductor film; a gate insulating film on and in contact with the second metal oxide film; and a gate electrode over the gate insulating film.Type: GrantFiled: March 29, 2011Date of Patent: August 6, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 8501554Abstract: The present invention provides a method for manufacturing a highly reliable semiconductor device with a small amount of leakage current. In a method for manufacturing a thin film transistor, etching is conducted using a resist mask to form a back channel portion in the thin film transistor, the resist mask is removed, a part of the back channel is etched to remove etching residue and the like left over the back channel portion, whereby leakage current caused by the residue and the like can be reduced. The etching step of the back channel portion can be conducted by dry etching using non-bias.Type: GrantFiled: December 3, 2012Date of Patent: August 6, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hidekazu Miyairi, Shinya Sasagawa, Akihiro Ishizuka
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Patent number: 8492190Abstract: A method for manufacturing a display panel includes; formation of a lower gate line, disposal of a semiconductor on the lower gate line, disposal of a lower data line substantially perpendicular to the lower gate line, disposal of an insulating layer having a plurality of trenches exposing the lower gate line and the lower data line on the lower data line, disposal of an upper gate line directly on the lower gate line and within the plurality of trenches, and disposal of an upper data line directly on the lower data line and within the plurality of trenches.Type: GrantFiled: May 16, 2012Date of Patent: July 23, 2013Assignee: Samsung Display Co., Ltd.Inventors: Joo-Ae Youn, Yang-Ho Bae, Chang-Oh Jeong, Chong-Chul Chai, Pil-Sang Yun, Honglong Ning, Byeong-Beom Kim
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Patent number: 8492212Abstract: Provided is a thin film transistor manufacture method by which a thin film transistor provided with LDD regions can be produced without increasing the number of photo masks used. An etching stopper layer (35) formed on a polycrystalline silicon film (26) of a TFT (10) is used not only as a mask to protect a channel region (27) when a source electrode and a drain electrode are formed by etching, but also as a mask when ions are implanted to form a source/drain regions (39). Thus, phosphorus, which is ion-implanted in the polycrystalline silicon film (26) to form the source/drain regions (39), is not implanted in the LDD region (38) and, accordingly, it is not necessary to additionally form a resist pattern to be used as a mask when ions are implanted.Type: GrantFiled: February 17, 2010Date of Patent: July 23, 2013Assignee: Sharp Kabushiki KaishaInventors: Tokuaki Kuniyoshi, Hidehito Kitakado, Tadayoshi Miyamoto, Kazuhide Tomiyasu, Sumio Katoh
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Patent number: 8450160Abstract: A method of flattening a substrate includes forming a metal layer on an upper surface of a substrate, forming a photoresist layer covering the substrate and the metal layer, radiating light to the photoresist layer, through a lower surface of the substrate opposite to the upper surface, exposing the metal layer by developing the photoresist layer, exposing the upper surface of the substrate by etching the metal layer, etching the exposed upper surface of the substrate, and removing the photoresist layer.Type: GrantFiled: March 29, 2011Date of Patent: May 28, 2013Assignee: Samsung Display Co., Ltd.Inventors: Pil Soon Hong, Gwui-Hyun Park, Sang Gab Kim
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Patent number: 8445339Abstract: A method for forming a conductor structure is provided. The method comprises: (1) providing a substrate; (2) forming a patterned dielectric layer with a first opening which exposes a portion of the substrate; forming a patterned organic material layer on the dielectric layer with a second opening which corresponds to the first opening and expose the exposed portion of the substrate; (3) forming a first barrier layer on the organic material layer and the exposed portion of the substrate; (4) forming a metal layer on the first barrier layer; and (5) removing the organic material layer, the first barrier layer thereon and the metal layer thereon.Type: GrantFiled: December 2, 2011Date of Patent: May 21, 2013Assignee: AU Optronics Corp.Inventors: Hantu Lin, Chienhung Chen
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Patent number: 8435823Abstract: According to one embodiment, a method of manufacturing a back-illuminated solid-state imaging device including forming a mask with apertures corresponding to a pixel pattern on the surface of a semiconductor layer, implanting second-conductivity-type impurity ions into the semiconductor layer from the front side of the layer to form second-conductivity-type photoelectric conversion parts and forming a part where no ion has been implanted into a pixel separation region, forming at the surface of the semiconductor layer a signal scanning circuit for reading light signals obtained at the photoelectric conversion parts after removing the mask, and removing the semiconductor substrate and a buried insulating layer from the semiconductor layer after causing a support substrate to adhere to the front side of the semiconductor layer.Type: GrantFiled: August 2, 2010Date of Patent: May 7, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Hirofumi Yamashita
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Patent number: 8436358Abstract: Provided is an image display device including thin film transistors on a substrate, including: gate lines and drain lines intersecting the gate lines, each thin film transistor having, in a channel region, a laminate structure in which a gate electrode, a gate insulating film, and a semiconductor layer are laminated in the stated order from the substrate side; and a pair of removal regions in which parts of the gate insulating film are removed, which are formed on both sides of the gate electrode and formed in a channel width direction of the channel region, in which when W represents a width of the gate electrode in the channel width direction of the channel region, and R represents a width of the gate insulating film in the channel width direction, which is sandwiched between the pair of removal regions, R?W is satisfied.Type: GrantFiled: April 18, 2011Date of Patent: May 7, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventor: Yoshiaki Toyota
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Patent number: 8435832Abstract: A method of fabricating MOTFTs on transparent substrates includes positioning opaque gate metal on the front surface of a transparent substrate and depositing transparent gate dielectric, transparent metal oxide semiconductor material, and passivation material on the gate metal and the surrounding area. Portions of the passivation material are exposed from the rear surface of the substrate. Exposed portions are removed to define a channel area overlying the gate area. A relatively thick conductive metal material is selectively deposited on the exposed areas of the semiconductor material to form thick metal source/drain contacts. The selective deposition includes either plating or printing and processing a metal paste.Type: GrantFiled: February 28, 2012Date of Patent: May 7, 2013Assignee: CBRITE Inc.Inventors: Chan-Long Shieh, Gang Yu
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Patent number: 8405086Abstract: The present invention provides a pixel structure of a display panel and a method for manufacturing the same. The method comprises the following steps: forming a first transistor and a second transistor on a substrate, wherein the first transistor is connected between the second transistor and a data line, wherein the second transistor is connected to a first gate line and a second gate line; and forming a pixel electrode, wherein the pixel electrode is connected to the first transistor. The present invention can improve a deformation problem of signal waveforms due to delay.Type: GrantFiled: November 4, 2011Date of Patent: March 26, 2013Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Hung-lung Hou
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Patent number: 8378352Abstract: An organic light-emitting display device and a method of manufacturing the organic light-emitting display device are disclosed. The organic light-emitting display device includes a bottom capacitor electrode that is formed over the same plane as an active layer of a thin film transistor and includes a semiconductor doped with ion impurities, a pixel electrode, and a top capacitor electrode formed over the same plane as a gate electrode, wherein a contact hole entirely exposing the pixel electrode and the top capacitor electrode is formed.Type: GrantFiled: May 6, 2011Date of Patent: February 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Yul-Kyu Lee, Chuy-Gi You, Sun Park, Jong-Hyun Park, Dae-Woo Kim
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Patent number: 8349671Abstract: The present invention provides a method for manufacturing a highly reliable semiconductor device with a small amount of leakage current. In a method for manufacturing a thin film transistor, etching is conducted using a resist mask to form a back channel portion in the thin film transistor, the resist mask is removed, a part of the back channel is etched to remove etching residue and the like left over the back channel portion, whereby leakage current caused by the residue and the like can be reduced. The etching step of the back channel portion can be conducted by dry etching using non-bias.Type: GrantFiled: August 22, 2008Date of Patent: January 8, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hidekazu Miyairi, Shinya Sasagawa, Akihiro Ishizuka
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Patent number: 8309407Abstract: Methods in accordance with aspects of this invention form microelectronic structures in accordance with other aspects of this invention, such as non-volatile memories, that include (1) a layerstack having a pattern including sidewalls, the layerstack comprising a resistivity-switchable layer disposed above and in contact with a bottom electrode, and a top electrode disposed above and in contact with the resistivity-switchable layer; and (2) a dielectric sidewall liner in contact with the sidewalls of the layerstack; wherein the resistivity-switchable layer includes a carbon-based material, and the dielectric sidewall liner includes an oxygen-poor dielectric material. Numerous additional aspects are provided.Type: GrantFiled: March 31, 2009Date of Patent: November 13, 2012Assignee: SanDisk 3D LLCInventor: April D. Schricker
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Patent number: 8273600Abstract: A method of fabricating MOTFTs on transparent substrates by positioning opaque gate metal on the substrate front surface and depositing gate dielectric material overlying the gate metal and a surrounding area and metal oxide semiconductor material on the dielectric material. Depositing selectively removable etch stop material on the semiconductor material and photoresist on the etch stop material to define an isolation area in the semiconductor material. Removing uncovered portions of the etch stop. Exposing the photoresist from the substrate rear surface using the gate metal as a mask and removing exposed portions leaving the etch stop material overlying the gate metal covered. Etching the semiconductor material to isolate the TFT. Selectively etching the etch stop layer to leave a portion overlying the gate metal defining a channel area. Depositing and patterning conductive material to form source and drain areas on opposed sides of the channel area.Type: GrantFiled: August 2, 2011Date of Patent: September 25, 2012Inventors: Chan-Long Shieh, Gang Yu, Fatt Foong
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Patent number: 8207535Abstract: The present invention relates to a thin film transistor substrate. The thin film transistor according to one embodiment of the present invention comprises: a gate wire and a data wire formed to cross each other on an insulating substrate and define a pixel area; a thin film transistor formed on the intersection of the gate wire and the data wire; an inorganic insulating layer covering the thin film transistor and having a surface that a prominence and depression pattern formed on; and a reflective layer provided on the prominence and depression pattern. Thus, the present invention provides a thin film transistor substrate which reduces the time required in the process and enhance the productivity.Type: GrantFiled: September 10, 2010Date of Patent: June 26, 2012Assignee: LG Display Co., Ltd.Inventor: Hyun-Ho Kim
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Publication number: 20120149158Abstract: A method of flattening a substrate includes forming a metal layer on an upper surface of a substrate, forming a photoresist layer covering the substrate and the metal layer, radiating light to the photoresist layer, through a lower surface of the substrate opposite to the upper surface, exposing the metal layer by developing the photoresist layer, exposing the upper surface of the substrate by etching the metal layer, etching the exposed upper surface of the substrate, and removing the photoresist layer.Type: ApplicationFiled: March 29, 2011Publication date: June 14, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Pil Soon HONG, Gwui-Hyun PARK, Sang Gab KIM
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Patent number: 8138087Abstract: An integrated circuit is provided that comprises a substrate of silicon and an interconnect in a through-hole extending from the first to the second side of the substrate. The interconnect is coupled to a metallization layer on the first side of the substrate and is provided on an amorphous silicon layer that is present at a side wall of the through-hole, and particularly at an edge thereof adjacent to the first side of the substrate. The interconnect comprises a metal stack of nickel and silver. A preferred way of forming the amorphous silicon layer is a sputter etching technique.Type: GrantFiled: September 17, 2007Date of Patent: March 20, 2012Assignee: NXP B.V.Inventors: Stephane Morel, Arnoldus Den Dekker, Elisabeth C. Rodenburg, Eric C. E. Van Grunsven
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Publication number: 20110212581Abstract: An array substrate for a liquid crystal display device comprises a substrate having a pixel region, a gate line on the substrate, and a data line crossing the gate line to define the pixel region. A thin film transistor (TFT) includes a gate electrode connected to the gate line, an insulating layer on the gate electrode, an active layer on the insulating layer, an ohmic contact layer on the active layer, a source electrode connected to the data line and a drain electrode spaced apart from the source electrode. A pixel electrode connects to the drain electrode and is disposed in the pixel region. An opaque metal pattern is provided on end portions of the pixel electrode.Type: ApplicationFiled: May 11, 2011Publication date: September 1, 2011Inventors: Ji-Hyun Jung, Dong-Young Kim
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Patent number: 8003451Abstract: The embodiment of the invention discloses an exemplary method, in which a gate line, a gate electrode, and a pixel electrode are formed in a first step; a multilayer structure is formed on the gate line and the gate electrode in a second step; and a data line and source/drain electrodes are formed in a third step.Type: GrantFiled: May 28, 2008Date of Patent: August 23, 2011Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventor: Youngjin Song