Patents by Inventor Ming-Fu Tsai
Ming-Fu Tsai 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: 10074745Abstract: According to an embodiment, a semiconductor device is provided. The device includes a second region having a greater curvature than a first region. The device includes an epitaxy layer of a first conductivity type, a well of a second conductivity type in the epitaxy layer, a drain in the epitaxy layer, a source in the well, and a bulk in the well and in contact with the source, the bulk having a greater area in the second region than in the first region.Type: GrantFiled: May 22, 2017Date of Patent: September 11, 2018Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Ming-Fu Tsai, Yu-Ti Su, Jen-Chou Tseng
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Patent number: 10026640Abstract: A method and structure of improving the robustness of an electrostatic discharge (ESD) protection device is disclosed. One aspect of the instant disclosure provides a semiconductor structure that comprises: a first well structure; a second well structure arranged adjacent to the isolation structure in the substrate, a diffusion region respectively disposed in the first and the second well structures; an isolation structure arranged between the well structures and laterally separating the diffusion regions; and a partition structure arranged in the isolation structure. The partition structure affects a steeper slope on a lateral surface of the isolation structure bordering at least one of the diffusion regions, thereby modifying a ballasting characteristic of the isolation structure.Type: GrantFiled: January 14, 2015Date of Patent: July 17, 2018Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Alexander Kalnitsky, Jen-Chou Tseng, Chia-Wei Hsu, Ming-Fu Tsai
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Publication number: 20180174584Abstract: A voice control device includes a microphone module, a voice encoding module, a display and a processing unit. The voice encoding module is electrically connected to the microphone module. The processing unit is electrically connected to the voice encoding module and the display. The microphone module receives a voice signal and transmits the received voice signal to the voice encoding module. One of the voice encoding module and the processing unit analyzes and processes the voice signal to determine a sound source direction of the voice signal and obtains response information according to the voice signal. The processing unit controls the display to rotate to the sound source direction and transmits the response information to the display for displaying the response information.Type: ApplicationFiled: December 15, 2017Publication date: June 21, 2018Inventors: YU-YANG CHIH, MING-CHUN HO, MING-FU TSAI, CHENG-PING LIU, FU-BIN WANG, SHIH-LUN LIN
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Publication number: 20170346479Abstract: A voltage detector includes a first node configured to have a first supply voltage, a second node configured to have a second supply voltage, and an output node. The voltage detector is configured to drive the output node to the first supply voltage in response to a difference between the first supply voltage and the second supply voltage exceeding a predetermined threshold voltage value.Type: ApplicationFiled: March 6, 2017Publication date: November 30, 2017Inventors: Ming-Fu TSAI, Jen-Chou TSENG, Kuo-Ji CHEN, Tzu-Heng CHANG
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Publication number: 20170256643Abstract: According to an embodiment, a semiconductor device is provided. The device includes a second region having a greater curvature than a first region. The device includes an epitaxy layer of a first conductivity type, a well of a second conductivity type in the epitaxy layer, a drain in the epitaxy layer, a source in the well, and a bulk in the well and in contact with the source, the bulk having a greater area in the second region than in the first region.Type: ApplicationFiled: May 22, 2017Publication date: September 7, 2017Inventors: MING-FU TSAI, YU-TI SU, JEN-CHOU TSENG
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Patent number: 9666713Abstract: According to an embodiment, a semiconductor device is provided. The device includes: The second region has a greater curvature than the first region. The device includes: an N-type epitaxy layer; a P-well in the N-type epitaxy layer; a drain in the N-type epitaxy layer; a source in the P-well; and a bulk in the P-well and in contact with the source, wherein the bulk has a greater area in the second region than in the first region.Type: GrantFiled: September 14, 2016Date of Patent: May 30, 2017Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Ming-Fu Tsai, Yu-Ti Su, Jen-Chou Tseng
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Publication number: 20170141100Abstract: Some embodiments relate to a semiconductor device on a substrate. An interconnect structure is disposed over the substrate, and a first conductive pad is disposed over the interconnect structure. A second conductive pad is disposed over the interconnect structure and is spaced apart from the first conductive pad. A third conductive pad is disposed over the interconnect structure and is spaced apart from the first and second conductive pads. A fourth conductive pad is disposed over the interconnect structure and is spaced apart from the first, second, and third conductive pads. A first ESD protection element is electrically coupled between the first and second pads; and a second ESD protection element is electrically coupled between the third and fourth pads. A first device under test is electrically coupled between the first and third conductive pads; and a second device under test is electrically coupled between the second and fourth pads.Type: ApplicationFiled: September 21, 2016Publication date: May 18, 2017Inventors: Jen-Chou Tseng, Ming-Fu Tsai, Tzu-Heng Chang
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Patent number: 9608616Abstract: A circuit includes a first node having a first supply voltage, a second node having a second supply voltage, and a voltage detector coupled between the first node and the second node, the voltage detector including a first output node. A clamp circuit is coupled between the first node and the second node. The voltage detector is configured to drive the first output node to the first supply voltage in response to a difference between the first supply voltage and the second supply voltage exceeding a predetermined threshold voltage value. The clamp circuit is configured to establish a conduction path between the first node and the second node in response to the first or second output node being driven to the first supply voltage.Type: GrantFiled: May 27, 2016Date of Patent: March 28, 2017Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Ming-Fu Tsai, Jen-Chou Tseng, Kuo-Ji Chen, Tzu-Heng Chang
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Publication number: 20170005194Abstract: According to an embodiment, a semiconductor device is provided. The device includes: The second region has a greater curvature than the first region. The device includes: an N-type epitaxy layer; a P-well in the N-type epitaxy layer; a drain in the N-type epitaxy layer; a source in the P-well; and a bulk in the P-well and in contact with the source, wherein the bulk has a greater area in the second region than in the first region.Type: ApplicationFiled: September 14, 2016Publication date: January 5, 2017Inventors: MING-FU TSAI, YU-TI SU, JEN-CHOU TSENG
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Patent number: 9472666Abstract: According to an embodiment, a semiconductor device is provided. The device includes: The second region has a greater curvature than the first region. The device includes: an N-type epitaxy layer; a P-well in the N-type epitaxy layer; a drain in the N-type epitaxy layer; a source in the P-well; and a bulk in the P-well and in contact with the source, wherein the bulk has a greater area in the second region than in the first region.Type: GrantFiled: February 12, 2015Date of Patent: October 18, 2016Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Ming-Fu Tsai, Yu-Ti Su, Jen-Chou Tseng
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Publication number: 20160240668Abstract: According to an embodiment, a semiconductor device is provided. The device includes: The second region has a greater curvature than the first region. The device includes: an N-type epitaxy layer; a P-well in the N-type epitaxy layer; a drain in the N-type epitaxy layer; a source in the P-well; and a bulk in the P-well and in contact with the source, wherein the bulk has a greater area in the second region than in the first region.Type: ApplicationFiled: February 12, 2015Publication date: August 18, 2016Inventors: MING-FU TSAI, YU-TI SU, JEN-CHOU TSENG
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Patent number: 9369556Abstract: A portable electronic device including a housing, a button assembly, a locking unit, a processing unit and a sensing unit is provided. The button assembly is disposed at an opening of the housing and includes a button, an elastomer and a switch. The button is movably disposed at the opening and configured to trigger the switch when an external force is applied. The elastomer is disposed between the button and the housing and forms a waterproof seal between the button and the housing. The locking unit is enabled to keep the button on a fixed position against the elastomer when the processing unit determines that a detection signal generated by the sensing unit is over a threshold. The locking unit is disabled when the processing unit determines that the detection signal is not over the threshold. A protection method for a portable electronic device is also provided.Type: GrantFiled: May 26, 2015Date of Patent: June 14, 2016Assignee: HTC CorporationInventors: Kuei-Cheng Wang, Chia-Hung Lin, Ming-Fu Tsai
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Patent number: 9368487Abstract: An electrostatic discharge (ESD) protection device is disclosed, which includes a substrate of a positive dopant type; a p-well defined in the substrate; a depletion inducing structure of a negative dopant type having a gap defined in a bottom portion thereof disposed in the p-well, and a n-channel device disposed in a planar encircled region defined by the depletion inducing structure. The well region is in connection with the substrate through the depletion inducing structure. Upon an ESD stress, the depletion inducing structure induces an expanded depletion region in the substrate under the well region, thus providing a substrate trigger mechanism that reduces the triggering voltage of the ESD protection device.Type: GrantFiled: January 28, 2015Date of Patent: June 14, 2016Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Yu-Ti Su, Li-Wei Chu, Ming-Fu Tsai, Jen-Chou Tseng
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Publication number: 20160111411Abstract: A method and structure of improving the robustness of an electrostatic discharge (ESD) protection device is disclosed. One aspect of the instant disclosure provides a semiconductor structure that comprises: a first well structure; a second well structure arranged adjacent to the isolation structure in the substrate, a diffusion region respectively disposed in the first and the second well structures; an isolation structure arranged between the well structures and laterally separating the diffusion regions; and a partition structure arranged in the isolation structure. The partition structure affects a steeper slope on a lateral surface of the isolation structure bordering at least one of the diffusion regions, thereby modifying a ballasting characteristic of the isolation structure.Type: ApplicationFiled: January 14, 2015Publication date: April 21, 2016Inventors: ALEXANDER KALNITSKY, JEN-CHOU TSENG, CHIA-WEI HSU, MING-FU TSAI
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Patent number: 8427091Abstract: A drive with heat dissipation and energy-saving function for supplying power to drive a motor. The drive includes a driving circuit having a rectification section. The rectification section serves to receive AC current generated when the motor abruptly accelerates/decelerates and convert the AC current into DC current and output the DC current. The drive further includes a cooling module electrically connected to an output end of the rectification section. The cooling module is drivable by the DC current output from the rectification section to conduct out and dissipate heat.Type: GrantFiled: March 9, 2011Date of Patent: April 23, 2013Assignee: Hiwin Mikrosystem Corp.Inventors: Chi-Yuan Cheng, Ming Fu Tsai
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Publication number: 20120229059Abstract: A drive with heat dissipation and energy-saving function for supplying power to drive a motor. The drive includes a driving circuit having a rectification section. The rectification section serves to receive AC current generated when the motor abruptly accelerates/decelerates and convert the AC current into DC current and output the DC current. The drive further includes a cooling module electrically connected to an output end of the rectification section. The cooling module is drivable by the DC current output from the rectification section to conduct out and dissipate heat.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Inventors: Chi-Yuan Cheng, Ming Fu Tsai
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Publication number: 20120229103Abstract: Signal compensation method for magnetically sensitive position feedback device in which the compensation for voltage offset is performed in accordance with the following formula (1), while the compensation for voltage amplitude is performed in accordance with the following formula (2): Voffset=(PreMaxV)/4+(NextMaxV)/4+(MaxV)/2,??formula (1) wherein: Voffset is the voltage offset of the half-wave of the current position, PreMaxV is the maximum positive (negative) voltage of the preceding half-wave to the half-wave of the current position, NextMaxV is the maximum positive (negative) voltage of the next half-wave from the half-wave of the current position, and MaxV is the maximum negative (positive) voltage of the half-wave of the current position.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Inventors: Ming-Fu TSAI, Cheng-Min LAI
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Publication number: 20120229123Abstract: A magnetic ring encoding device for composite signals, which is disposed at an end of a rotary shaft of a rotary motor. The magnetic ring encoding device includes: a magnetic ring having a ring-shaped body section synchronously rotatable with the rotary shaft of the rotary motor, multiple magnetic poles being arranged on the body section at equal intervals; multiple Hall elements located and arranged around the body section at intervals, the Hall elements serving to sense magnetic field change that takes place when the magnetic poles pass through the Hall elements and output sensed signals according to the magnetic field change; and an adder for performing addition operation for the sensed signals output from the Hall elements.Type: ApplicationFiled: March 9, 2011Publication date: September 13, 2012Inventors: Chi-Yuan CHENG, Chih-Mao SHIAO, Ming Fu TSAI
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Patent number: 6358455Abstract: Induced surface reconstruction of silicone rubber by blending silicone gel reactants with a modified and curing with a mold having high critical surface tension was used to improve the adhesion of chemically inert silicone rubber to polyurethane. The modifier has the following formula wherein m=25˜50; R1, R2, R3, R4, R11 and R12 independently are alkyl; R′ is R or OR, wherein R is a polymer backbone having a molecular weight of 1000˜20000. The mold is formed with a material having a critical surface tension greater than that of a polymer having a repeating unit of said R.Type: GrantFiled: November 29, 1999Date of Patent: March 19, 2002Assignee: Chung-Shan Institute of Science & TechnologyInventors: Ming-Fu Tsai, Yu-Der Lee, Yong-Chien Ling, Wen-Hsiung Ku, Chang-Hao Tai
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Patent number: 6290892Abstract: Induced surface reconstruction of silicone rubber by blending silicone gel reactants of addition type with a modifier and curing with a mold having a high critical surface tension was used to improve the adhesion of chemically inert silicone rubber to polyurethane. The modifier has the following formula wherein m=25˜50; R1, R2, R3, and R4 independently are alkyl; R′ is R or OR, wherein R is a polymer backbone having a molecular weight of 1000˜20000. The mold is formed with a material having a critical surface tension greater than that of a polymer having a repeating unit of said R.Type: GrantFiled: November 29, 1999Date of Patent: September 18, 2001Assignee: Chung-Shan Institute of Science & TechnologyInventors: Ming-Fu Tsai, Yu-Der Lee, Yong Chien Ling, Wen-Hsiung Ku, Yuan-Chyi Lin