Patents by Inventor Chih-Feng Lin
Chih-Feng Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12092854Abstract: A foldable display device includes a reflective display panel, a light guiding layer and at least one light source. The light guiding layer is located on the reflective display panel and includes a non-foldable area, a foldable area and a transition area. The light guiding layer satisfies the following formulas: D2<D1, W2?Rx ? and J1?(L?W2)/2?W1, in which D1 is a thickness of the non-foldable area, D2 is a thickness of the foldable area, W1 is a width of the non-foldable area, W2 is a width of the foldable area, R is a folding radius of the reflective display panel, J1 is a width of the transition area, L is a length of the light guiding layer. The light source is located on the reflective display panel and faces the sidewall of the light guiding layer.Type: GrantFiled: August 9, 2023Date of Patent: September 17, 2024Assignee: E Ink Holdings Inc.Inventors: Kenji Nakazawa, Keisuke Hashimoto, Deng-Kuen Shiau, Chih-Chia Chen, Yue-Feng Lin
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Publication number: 20240293962Abstract: A molded semiconductor device includes a semiconductor device and a molding material encapsulating the semiconductor device, wherein an upper surface of the molding material is substantially coplanar with an upper surface of the semiconductor device and comprises a groove at least partially surrounding the upper surface of the semiconductor device.Type: ApplicationFiled: May 14, 2024Publication date: September 5, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Sheng-Feng Weng, Ching-Hua Hsieh, Chung-Shi Liu, Chih-Wei Lin, Sheng-Hsiang Chiu, Yao-Tong Lai, Chia-Min Lin
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Patent number: 12074206Abstract: A device includes a semiconductor substrate, a fin structure on the semiconductor substrate, a gate structure on the fin structure, and a pair of source/drain features on both sides of the gate structure. The gate structure includes an interfacial layer on the fin structure, a gate dielectric layer on the interfacial layer, and a gate electrode layer of a conductive material on and directly contacting the gate dielectric layer. The gate dielectric layer includes nitrogen element.Type: GrantFiled: August 30, 2021Date of Patent: August 27, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chia-Wei Chen, Chih-Yu Hsu, Hui-Chi Chen, Shan-Mei Liao, Jian-Hao Chen, Cheng-Hao Hou, Huang-Chin Chen, Cheng Hong Yang, Shih-Hao Lin, Tsung-Da Lin, Da-Yuan Lee, Kuo-Feng Yu, Feng-Cheng Yang, Chi On Chui, Yen-Ming Chen
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Publication number: 20240258174Abstract: In a method of manufacturing a semiconductor device, a fin structure is formed by patterning a semiconductor layer, and an annealing operation is performed on the fin structure. In the patterning of the semiconductor layer, a damaged area is formed on a sidewall of the fin structure, and the annealing operation eliminates the damaged area.Type: ApplicationFiled: March 13, 2024Publication date: August 1, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun Hsiung TSAI, Yu-Ming LIN, Kuo-Feng YU, Ming-Hsi YEH, Shahaji B. MORE, Chandrashekhar Prakash SAVANT, Chih-Hsin KO, Clement Hsingjen WANN
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Patent number: 12051750Abstract: A memory cell includes a thin film transistor over a semiconductor substrate. The thin film transistor comprising: a ferroelectric (FE) material contacting a word line, the FE material being a hafnium-comprising compound, and the hafnium-comprising compound comprising a rare earth metal; and an oxide semiconductor (OS) layer contacting a source line and a bit line, wherein the FE material is disposed between the OS layer and the word line.Type: GrantFiled: August 9, 2022Date of Patent: July 30, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chun-Chieh Lu, Sai-Hooi Yeong, Bo-Feng Young, Yu-Ming Lin, Chih-Yu Chang
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Patent number: 12041760Abstract: A transistor includes a gate structure that has a first gate dielectric layer and a second gate dielectric layer. The first gate dielectric layer is disposed over the substrate. The first gate dielectric layer contains a first type of dielectric material that has a first dielectric constant. The second gate dielectric layer is disposed over the first gate dielectric layer. The second gate dielectric layer contains a second type of dielectric material that has a second dielectric constant. The second dielectric constant is greater than the first dielectric constant. The first dielectric constant and the second dielectric constant are each greater than a dielectric constant of silicon oxide.Type: GrantFiled: August 9, 2022Date of Patent: July 16, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chih-Yu Hsu, Jian-Hao Chen, Chia-Wei Chen, Shan-Mei Liao, Hui-Chi Chen, Yu-Chia Liang, Shih-Hao Lin, Kuei-Lun Lin, Kuo-Feng Yu, Feng-Cheng Yang, Yen-Ming Chen
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Patent number: 11955041Abstract: The control circuit for controlling a display panel is provided. The control circuit includes a first driving circuit and a second driving circuit for driving the display panel. The first driving circuit includes first output terminals and first input terminals. The first driving circuit outputs a plurality of test signals to the first output terminals sequentially during different periods in a diagnosis stage. The second driving circuit includes second input terminals and second output terminals. The second driving circuit receives the test signals through the second input terminals in the diagnosis stage, and outputs a plurality of response signals to the second output terminals sequentially during different periods in response to the test signals. The first driving circuit receives the response signals through the first input terminals, and judges a connecting status of the first driving circuit and the second driving circuit according to the response signals.Type: GrantFiled: May 25, 2023Date of Patent: April 9, 2024Assignee: HIMAX TECHNOLOGIES LIMITEDInventor: Chih-Feng Lin
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Patent number: 11948625Abstract: System on chips, memory circuits, and method for data access, the memory circuits including a memory cell array and an input/output (I/O) connection interface coupled to the memory cell array, wherein the I/O connection interface is configured for coupling to an external signal line to directly receive a transistor-level operation signal from an external memory controller for accessing data in the memory cell array.Type: GrantFiled: September 9, 2021Date of Patent: April 2, 2024Assignee: Winbond Electronics CorporationInventors: Chih-Tung Tang, Chih-Feng Lin
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Publication number: 20240028300Abstract: A random-number-generating circuit is provided, which includes a noise-voltage generator, a voltage-controlled oscillator, a ring oscillator, and a D flip-flop (DFF). The noise-voltage generator converts an external voltage into a noise voltage. The voltage-controlled oscillator receives the noise voltage, and generates a first clock signal according to the noise voltage. The ring oscillator generates a sampling clock signal. The DFF receives the first clock signal, and samples the first clock signal using the sampling clock signal to obtain an output digital signal, wherein the output digital signal represents a random number.Type: ApplicationFiled: July 25, 2022Publication date: January 25, 2024Applicant: Winbond Electronics Corp.Inventor: Chih-Feng LIN
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Patent number: 11853090Abstract: A low-dropout regulator including a first comparator, an edge trigger, a second comparator, a third comparator, and an output stage circuit is provided. The first comparator generates a first comparison signal according to a first reference signal and an output signal. The edge trigger outputs a trigger signal according to the first comparison signal, a second comparison signal, and a third comparison signal. The second comparator generates the second comparison signal according to the output signal and a second reference signal. The third comparator generates the third comparison signal according to the output signal and a third reference signal. The output stage circuit outputs the output signal according to the first comparison signal, the second comparison signal, and the third comparison signal. The output stage circuit includes a plurality of hysteresis controllers and a plurality of power transistors. Each hysteresis controller controls a conduction state of a corresponding power transistor.Type: GrantFiled: July 28, 2021Date of Patent: December 26, 2023Assignee: Winbond Electronics Corp.Inventor: Chih-Feng Lin
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Publication number: 20230411382Abstract: An electrostatic discharge (ESD) protection device including the following components is provided. A first transistor includes a first gate, a first N-type source region, and an N-type drain region. A second transistor includes a second gate, a second N-type source region, and the N-type drain region. The N-type drain region is located between the first gate and the second gate. An N-type drift region is located in a P-type substrate between the first gate and the second gate and is located directly below a portion of the first gate and directly below a portion of the second gate. The N-type drain region is located in the N-type drift region. A P-type barrier region is located in the P-type substrate below the N-type drift region. The P-type barrier region has an overlapping portion overlapping the N-type drift region. There is at least one first opening in the overlapping portion.Type: ApplicationFiled: August 9, 2022Publication date: December 21, 2023Applicant: Powerchip Semiconductor Manufacturing CorporationInventors: Ming-Hui Chen, Chih-Feng Lin, Chiu-Tsung Huang, Hsiang-Hung Chang
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Publication number: 20230402928Abstract: Disclosed is a power control system with zero voltage switching including a power controller, a rectification unit, a power unit, a transformer unit, a primary side switch unit, a current sensing unit, an auxiliary switch unit, an output unit, and a current sensing unit for implementing a function of flyback power conversion. The power controller has a power pin, a ground pin, a primary side driving pin, a voltage sensing pin, an auxiliary driving pin, and an auxiliary winding sensing pin, In particular, the auxiliary switch unit is controlled to influence an primary side winding through an auxiliary winding so as to reduce the drain voltage of the primary side switch unit. Further, the primary side switch unit is turned on when the drain voltage is decreased to the lowest value, thereby greatly reducing switching loss and increasing efficiency of power conversion.Type: ApplicationFiled: June 9, 2022Publication date: December 14, 2023Inventors: Shu-Chia Lin, Tsu-Huai Chan, Chih-Feng Lin
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Publication number: 20230216904Abstract: A media streaming device includes a power manager, a stream processor, and a voltage detector. The power manager receives a power signal from the media playback device to supply power to the stream processor. The stream processor provides media stream to the media playback device for playback. The voltage detector is electrically coupled to the stream processor and captures at least a part of the power supply current to the stream processor. The stream processor is configured to determine whether the power supply voltage remains stable. When the supply voltage remains stable, the stream processor operates in a first mode to provide media stream. When the power supply voltage is unstable, the stream processor operates in a second mode to provide media stream, and the power consumption of the stream processor in the second mode is lower than the power consumption in the first mode.Type: ApplicationFiled: August 23, 2022Publication date: July 6, 2023Inventors: Chao-Min LAI, Chia-Chi YEH, Chieh-Lung HSIEH, Chih-Feng LIN
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Publication number: 20230215509Abstract: A multi-channel memory device includes N first memory blocks, a first redundancy memory block, and N first interface circuits. Each of the first interface circuits is coupled to two of the first memory blocks and the first redundancy memory block. The first interface circuits respectively select N first selected memory blocks in the first memory block and the first redundancy memory block according to a plurality of first selection signals, where N is a positive integer greater than 1.Type: ApplicationFiled: September 6, 2022Publication date: July 6, 2023Applicant: Winbond Electronics Corp.Inventor: Chih-Feng Lin
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Patent number: 11614082Abstract: A slim-type gas transportation device includes a slim-type gas pump and a slim-type valve structure. The slim-type valve structure includes a first thin plate, a valve frame, a valve plate and a second thin plate. The first thin plate has a hollow portion. The valve plate is disposed within an accommodation space of the valve frame. The valve plate includes a valve opening. The valve opening is not aligned with the hollow portion. The second thin plate includes a gas outlet surface, a pressure relief surface, a gas outlet groove, an outlet aperture, a pressure relief hole and a pressure relief trench. The outlet aperture is hollowed out from the gas outlet groove to the pressure relief surface and corresponding in position to the valve opening. The pressure relief hole is spaced apart from the gas outlet groove. The pressure relief trench is concavely formed from the pressure relief surface.Type: GrantFiled: November 5, 2020Date of Patent: March 28, 2023Assignee: Microjet Technology Co., Ltd.Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Jia-Yu Liao, Chih-Feng Lin, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo
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Publication number: 20230075351Abstract: System on chips, memory circuits, and method for data access, the memory circuits including a memory cell array and an input/output (I/O) connection interface coupled to the memory cell array, wherein the I/O connection interface is configured for coupling to an external signal line to directly receive a transistor-level operation signal from an external memory controller for accessing data in the memory cell array.Type: ApplicationFiled: September 9, 2021Publication date: March 9, 2023Applicant: WINBOND ELECTRONICS CORPORATIONInventors: Chih-Tung TANG, Chih-Feng LIN
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Patent number: 11566775Abstract: At least two lighting modules are disposed on a printed circuit board (PCB). Each of the lighting modules includes a plurality of light emitting diode (LED) chips disposed in a non-rectangular array. Lenses are provided over the lighting modules. Each lens has a convex outer surface, and a chamber with a planar or concave inner surface facing a corresponding lighting module and disposed to cover the LED set within the chamber. A light projecting device includes a plurality of LED sets and a plurality of lenses. An orientation part couples each lighting module to the PCB at a non-zero angle.Type: GrantFiled: December 16, 2021Date of Patent: January 31, 2023Assignee: TOP VICTORY INVESTMENTS LIMITEDInventors: Lieve Lea Andrea Lanoye, Nicolas Philippe Henry Babled, Chih-Feng Lin, Wen-Sheng Lu, Chia-Chih Lin, Dieter Marcel Freddy Verlinde
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Publication number: 20230010170Abstract: The present invention discloses a method of standby power supply including steps of: detecting a loading level; determining the loading level; entering a select mode; selecting a standby mode; entering a no-load mode, or a sleep mode, or a power-down mode; during the no-load mode, generating a no-load sustaining power, and returning back to detect the loading level when a preset condition is met; during the sleep mode, generating a sleep sustaining power, and returning back to detect the loading level when the preset condition is met; during the power-down mode, ceasing the power and entering a power-down recovery mode; and during the power-down recovery mode, returning back to detect the loading level when the preset condition is met. Therefore, the present invention implements power conversion for normal power supply, and particularly effectively controls the amount of power in the standby state, thereby greatly reducing power consumption and improving power saving.Type: ApplicationFiled: June 13, 2022Publication date: January 12, 2023Inventors: Shu-Chia Lin, Tsu-Huai Chan, Chih-Feng Lin
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Patent number: 11543840Abstract: A voltage regulator includes a main driving stage circuit, a first pre-driving circuit, a plurality of auxiliary driving stage circuits, a second pre-driving circuit, and a comparison and decoding circuit. The main driving stage circuit provides a main driving current of an output voltage according to a first control signal. Each of the auxiliary driving stage circuits determines whether to provide an auxiliary driving current of the output voltage according to a second control signal. The second pre-driving circuit generates the second control signal according to an enable signal. The comparison and decoding circuit generates a simulated driving current and generates a load current according to a reference current and a counting code, compares the simulated driving current with the load current to generate a comparison result, and generates the enable signal by decoding the comparison result. The counting code is generated according to the comparison result.Type: GrantFiled: May 18, 2021Date of Patent: January 3, 2023Assignee: Winbond Electronics Corp.Inventor: Chih-Feng Lin
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Patent number: 11404334Abstract: A testing circuit includes a command pad, a first circuit, a second circuit, a first latch, and a second latch. The command pad receives an operation command. The first integrated circuit performs a corresponding test operation according to the operation command and an internal selection signal. The second integrated circuit performs the corresponding test operation according to the operation command and an internal selection signal. The first latch provides the operation command to the first integrated circuit according to the internal selection signal. The second latch provides the operation command to the second integrated circuit according to the internal selection signal.Type: GrantFiled: June 8, 2021Date of Patent: August 2, 2022Assignee: WINDBOND ELECTRONICS CORP.Inventor: Chih-Feng Lin