Patents by Inventor Chih-Hui Chang
Chih-Hui Chang 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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Publication number: 20250053161Abstract: A manufacturing control method is applied to a computer system comprising a processor, a storage device, and a display device. The manufacturing control method includes: dividing a plurality of outlier-filtered data into a plurality of data subgroups based on a group division reference value; calculating a plurality of standard deviations for each of these data subgroups; calculating a warning line upper limit and a warning line lower limit based on the group division reference value, a predetermined multiple, and the standard deviations; adjusting either the warning line upper limit or the warning line lower limit based on the predetermined multiple and the standard deviations; and when a sensing data exceeds the warning line upper limit or the warning line lower limit, the computing system triggers a warning signal.Type: ApplicationFiled: August 24, 2023Publication date: February 13, 2025Inventors: Yung-Yu YANG, Chih-Kuan CHANG, Chung-Chih HUNG, Yu-Hsien TSAI, Chen-Hui HUANG
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Patent number: 12222643Abstract: A method of manufacturing a semiconductor device includes forming a photoresist layer over a substrate. A first precursor and a second precursor are combined. The first precursor is an organometallic having a formula: MaRbXc, where M is one or more of Sn, Bi, Sb, In, and Te, R is one or more of a C7-C11 aralkyl group, a C3-C10 cycloalkyl group, a C2-C10 alkoxy group, and a C2-C10 alkylamino group, X is one or more of a halogen, a sulfonate group, and an alkylamino group, and 1?a?2, b?1, c?1, and b+c?4, and the second precursor is one or more of water, an amine, a borane, and a phosphine. The photoresist layer is selectively exposed to actinic radiation to form a latent pattern. The latent pattern is developed by applying a developer to the selectively exposed photoresist layer.Type: GrantFiled: October 22, 2022Date of Patent: February 11, 2025Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chih-Cheng Liu, Ming-Hui Weng, Jr-Hung Li, Yahru Cheng, Chi-Ming Yang, Tze-Liang Lee, Ching-Yu Chang
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Publication number: 20250038072Abstract: A semiconductor die includes a substrate, a semiconductor device, a back-end-of-line (BEOL) structure, and a heat dissipation structure. The substrate includes a device region and a non-device region. The BEOL structure includes a plurality of metallization layers. Each of the metallization layers includes a dielectric layer, interconnect features, and metal patterns. The interconnect features is in the dielectric layer and over the device region of the substrate, in which the interconnect features are electrically connected with the semiconductor device. The metal patterns are in the dielectric layer and over the non-device region of the substrate, in which the metal patterns are electrically isolated from the semiconductor device. The heat dissipation structure is over the non-device region of the substrate and extending through at least two of the metallization layers, in which the heat dissipation structure is in contact with the metal patterns of one of the metallization layers.Type: ApplicationFiled: July 27, 2023Publication date: January 30, 2025Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hsin-Yuan LEE, Chih-Kai YANG, Ken-Hsien HSIEH, Ya Hui CHANG
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Publication number: 20230409133Abstract: A projection device including a casing, an operation module, a main board, and a conducting element is provided. The operation module includes an operation element and an operation circuit board. The operation element is disposed on the casing to execute a first operation. The operation circuit board is coupled to the operation element. The operation circuit board includes a wireless signal emitter and a first conducting portion. The operation circuit board generates a first operation signal in response to the first operation, and the wireless signal emitter emits the first operation signal. The main board includes a wireless signal receiver and a second conducting portion. The wireless signal receiver is configured to receive the first operation signal, and the main board is configured to execute a first action corresponding to the first operation signal. The conducting element is electrically connected to the first conducting portion and the second conducting portion.Type: ApplicationFiled: June 17, 2023Publication date: December 21, 2023Applicant: Coretronic CorporationInventors: Chih-Hui Chang, Jeng-An Liao
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Patent number: 11662652Abstract: A projector, including a body, a light source, a light valve, a projection lens, and a lens adjustment module, is provided. The light source and the light valve are disposed in the body, and the projection lens is movably disposed on the body. The lens adjustment module includes a driven structure connected to the projection lens, a guiding member and a rotating member connected to the guiding member. The guiding member is disposed on the body to be rotatable along an axis of rotation and has a closed ring guiding rail. The driven structure is slidably disposed at the closed ring guiding rail and is configured to move relative to the guiding member along a closed ring path defined by the closed ring guiding rail. A normal direction of a surface where the closed ring path is located is not parallel to the axis of rotation.Type: GrantFiled: April 19, 2021Date of Patent: May 30, 2023Assignee: Coretronic CorporationInventors: Chun-Hsien Wu, Chih-Hui Chang, Fu-Shun Kao
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Publication number: 20230152676Abstract: A focusing module includes a focusing ring and a projection lens mounting ring. The focusing ring has a first ring body and a first annular wall with a limiting hole. The projection lens mounting ring has a second annular wall which can rotate relative to the first annular wall along a circumferential direction of the first annular wall. The second annular wall has a through hole and a rotation buffer structure having a limiting portion and a cantilever portion. The limiting portion has a center surrounded by the hole edge and protruding toward the first annular wall. The center has first side and second side. A thickness of the limiting portion decreases from the center toward the first and second side. The center is in the limiting hole and the first annular wall is pressed against the first and second side when the limiting portion contacts against the limiting hole.Type: ApplicationFiled: November 15, 2022Publication date: May 18, 2023Inventor: CHIH-HUI CHANG
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Publication number: 20210397073Abstract: A projector, including a body, a light source, a light valve, a projection lens, and a lens adjustment module, is provided. The light source and the light valve are disposed in the body, and the projection lens is movably disposed on the body. The lens adjustment module includes a driven structure connected to the projection lens, a guiding member and a rotating member connected to the guiding member. The guiding member is disposed on the body to be rotatable along an axis of rotation and has a closed ring guiding rail. The driven structure is slidably disposed at the closed ring guiding rail and is configured to move relative to the guiding member along a closed ring path defined by the closed ring guiding rail. A normal direction of a surface where the closed ring path is located is not parallel to the axis of rotation.Type: ApplicationFiled: April 19, 2021Publication date: December 23, 2021Applicant: Coretronic CorporationInventors: Chun-Hsien Wu, Chih-Hui Chang, Fu-Shun Kao
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Patent number: 11054729Abstract: A projector includes an optical engine module, a projection lens module, a heat dissipation module, and a laser module. The laser module includes a positioning member and a laser unit fixed to the positioning member, wherein a positioning member includes a main plate portion and two shoulder portions, the main plate portion includes a first upper surface and a first lower surface opposite to each other, a first front surface and a first rear surface opposite to each other, and a first left side surface and a first right side surface opposite to each other, and the two shoulder portions extend on a plane of the first upper surface from the first left side surface and the first right side surface of the main plate portion, respectively. A laser module is also provided.Type: GrantFiled: September 24, 2019Date of Patent: July 6, 2021Assignee: Coretronic CorporationInventors: Chun-Hsien Wu, Kuei-Ju Weng, Chih-Hui Chang, Yu-Chang Chang, Fu-Shun Kao
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Publication number: 20200096852Abstract: A projector includes an optical engine module, a projection lens module, a heat dissipation module, and a laser module. The laser module includes a positioning member and a laser unit fixed to the positioning member, wherein a positioning member includes a main plate portion and two shoulder portions, the main plate portion includes a first upper surface and a first lower surface opposite to each other, a first front surface and a first rear surface opposite to each other, and a first left side surface and a first right side surface opposite to each other, and the two shoulder portions extend on a plane of the first upper surface from the first left side surface and the first right side surface of the main board portion, respectively. A laser module is also provided.Type: ApplicationFiled: September 24, 2019Publication date: March 26, 2020Inventors: CHUN-HSIEN WU, KUEI-JU WENG, CHIH-HUI CHANG, YU-CHANG CHANG, FU-SHUN KAO
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Patent number: 9305276Abstract: Various embodiments include computer-implemented methods of modeling production for a semiconductor foundry. One method includes: obtaining a multi-part order including: a first order for a fixed number of preliminary products; and a second order for a fixed number of completed products formed from the fixed number of preliminary products; and determining an amount of inventory required to fulfill the first order and the second order, wherein the determining includes: creating a first model including a first inventory amount required to meet the first order; and creating a second model including a second inventory amount required to meet the second order, wherein the second model accounts for results from the first model, including the first inventory amount; and running a single linear programming (LP) process using the first model and the second model to determine the amount of inventory required to fulfill the first order.Type: GrantFiled: January 4, 2013Date of Patent: April 5, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Chih-Hui Chang, Rahul Nahar
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Patent number: 9151955Abstract: The invention provides a projection system and a light-homogenizing device adjustment element for adjusting the position of a light-homogenizing device. The light-homogenizing device adjustment element has an actuator, and the actuator leans against one side of the light-homogenizing device and has a plurality of curved surfaces with different radii of curvature. When the actuator rotates, different curved surfaces push the light-homogenizing device to cause the light-homogenizing device to move in at least one direction from an initial position.Type: GrantFiled: December 26, 2013Date of Patent: October 6, 2015Assignee: CORETRONIC CORPORATIONInventors: Sheng-Yu Chiu, Chih-Hui Chang
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Publication number: 20150185594Abstract: A dustproof cover used in a projector has a casing and a projection lens, the projection lens is disposed at a front side of the casing, the projection lens has a first adjusting device disposed at a top side of the casing connected to front side. The dustproof cover includes a body, a lid, a transparent plate and at least one airtight trim, in which the body is assembled to the casing to cover the projection lens and the first adjusting device and has a first adjusting hole to expose the first adjusting device. The lid is detachably connected to the body to conceal the first adjusting hole. The transparent plate is disposed on the body to allow an image beam emitted from the projection lens passing through. The at least one airtight trim is connected to a portion of the casing contacted the body.Type: ApplicationFiled: September 2, 2014Publication date: July 2, 2015Applicant: CORETRONIC CORPORATIONInventors: Jung-Chi Chen, Sheng-Yu Chiu, Chih-Hui Chang, Hsiu-Min Hsiao
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Patent number: 8833973Abstract: A lamp position adjustment device includes a base plate, a supporting frame, a lamp holder, a first positioning mechanism, and a second positioning mechanism. The first positioning mechanism is disposed between the lamp holder and the supporting frame and between the lamp holder and the base plate to enable the lamp holder to move in a first direction relative to the supporting frame. The first direction is substantially parallel with one side of a light incident surface of an integration rod. The second positioning mechanism is disposed between the lamp holder and the base plate to enable the lamp holder to rotate about an axis parallel to the first direction.Type: GrantFiled: October 15, 2009Date of Patent: September 16, 2014Assignee: Coretronic CorporationInventors: Jung-Chi Chen, Jih-Ching Chang, Chih-Hui Chang
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Publication number: 20140195029Abstract: Various embodiments include computer-implemented methods of modeling production for a semiconductor foundry. One method includes: obtaining a multi-part order including: a first order for a fixed number of preliminary products; and a second order for a fixed number of completed products formed from the fixed number of preliminary products; and determining an amount of inventory required to fulfill the first order and the second order, wherein the determining includes: creating a first model including a first inventory amount required to meet the first order; and creating a second model including a second inventory amount required to meet the second order, wherein the second model accounts for results from the first model, including the first inventory amount; and running a single linear programming (LP) process using the first model and the second model to determine the amount of inventory required to fulfill the first order.Type: ApplicationFiled: January 4, 2013Publication date: July 10, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Chih-Hui Chang, Rahul Nahar
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Publication number: 20140185022Abstract: The invention provides a projection system and a light-homogenizing device adjustment element for adjusting the position of a light-homogenizing device. The light-homogenizing device adjustment element has an actuator, and the actuator leans against one side of the light-homogenizing device and has a plurality of curved surfaces with different radii of curvature. When the actuator rotates, different curved surfaces push the light-homogenizing device to cause the light-homogenizing device to move in at least one direction from an initial position.Type: ApplicationFiled: December 26, 2013Publication date: July 3, 2014Inventors: SHENG-YU CHIU, CHIH-HUI CHANG
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Patent number: 8140372Abstract: Method, system and program product for planning production for complementary demands are disclosed. In one embodiment, a method includes obtaining complementary demand values including at least one daily going rate (DGR) demand and a service demand; running a first planning production model in which the at least one DGR demand is included and the service demand is excluded; and running a second planning production model in which DGR related variables are fixed to values determined in the first planning production model and the service demand is included. Demands that are only considered by one of the planning production models are considered complementary demands.Type: GrantFiled: August 3, 2006Date of Patent: March 20, 2012Assignee: International Business Machines CorporationInventors: Chih-Hui Chang, Brian T. Denton, Sanjay R. Hegde, Robert J. Milne, Stuart H. Smith, Chi-Tai Wang, Jacqueline N. Ward
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Publication number: 20100097816Abstract: A lamp position adjustment device includes a base plate, a supporting frame, a lamp holder, a first positioning mechanism, and a second positioning mechanism. The first positioning mechanism is disposed between the lamp holder and the supporting frame and between the lamp holder and the base plate to enable the lamp holder to move in a first direction relative to the supporting frame. The first direction is substantially parallel with one side of a light incident surface of an integration rod. The second positioning mechanism is disposed between the lamp holder and the base plate to enable the lamp holder to rotate about an axis parallel to the first direction.Type: ApplicationFiled: October 15, 2009Publication date: April 22, 2010Inventors: Jung-Chi CHEN, Jih-Ching CHANG, Chih-Hui CHANG
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Publication number: 20090262310Abstract: A picture correction systems and a method are provided. The system includes a circular variable resistance unit and a control unit. The circular variable resistance unit includes at least two circular resistance coils and a control stick. One of the circular resistance coils receives a voltage. The control stick is disposed on the inner rims of the circular resistance coils to be electrically connected with the circular resistance coils. The control stick rolls along the inner rims of the circular resistance coils. The circular variable resistance unit generates a loop voltage according to a position of the control stick being located at the inner rims of the circular resistance coils. The control unit receives the loop voltage, and performs a picture correction for a projector according to the loop voltage.Type: ApplicationFiled: March 9, 2009Publication date: October 22, 2009Applicant: CORETRONIC CORPORATIONInventors: Chang-Jung Wen, Jung-Chi Chen, Chih-Hui Chang
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Publication number: 20080130248Abstract: A casing adapted for packing an electronic device is provided. The casing includes a shell, a cover, and a thermal switch. The shell has an assembly opening, and the cover is adapted for being installed to the assembly opening. The shell and the cover surround the electronic device. The thermal switch is disposed in one of the shell and the cover. When the thermal switch is heated by the electronic device and the temperature thereof rises, the deformation of the thermal switch forms the interference between the cover and the shell so as to prevent the cover being departed from the shell. Therefore, the present invention is capable of avoiding the user from being scalded by the electronic device.Type: ApplicationFiled: August 9, 2007Publication date: June 5, 2008Applicant: CORETRONIC CORPORATIONInventors: Jung-Chi Chen, Chih-Hui Chang
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Publication number: 20080033586Abstract: Method, system and program product for planning production for complementary demands are disclosed. In one embodiment, a method includes obtaining complementary demand values including at least one daily going rate (DGR) demand and a service demand; running a first planning production model in which the at least one DGR demand is included and the service demand is excluded; and running a second planning production model in which DGR related variables are fixed to values determined in the first planning production model and the service demand is included. Demands that are only considered by one of the planning production models are considered complementary demands.Type: ApplicationFiled: August 3, 2006Publication date: February 7, 2008Inventors: Chih-Hui Chang, Brian T. Denton, Sanjay R. Hegde, Robert J. Milne, Stuart H. Smith, Chi-Tai Wang, Jacqueline N. Ward