Patents by Inventor Chien Hua Chen
Chien Hua Chen 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: 20240032886Abstract: An equipment for monitoring physiological status of a user includes a sound detection unit, a chest detection unit, an abdomen detection unit, and a control unit. The sound detection unit is configured to detect sound of breath and to generate a sound detection signal based on the sound of breath. The chest detection unit is configured to detect a parameter related to movement of a chest and to generate a chest detection signal based on the detection. The abdomen detection unit is configured to detect a parameter related to movement of an abdomen and to generate an abdomen detection signal based on the detection. The control unit is electrically connected to the sound detection unit, the chest detection unit, and the abdomen detection unit and is configured to determine a breathing status of a user based on the sound detection signal, the chest detection signal, and the abdomen detection signal.Type: ApplicationFiled: July 27, 2023Publication date: February 1, 2024Applicant: Taipei Medical UniversityInventors: Pai-Chien Chou, Chien-Hua Chen, Ya-Ting Juang
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Publication number: 20230391086Abstract: An example device may comprise a molded structure and a dependent device coupled to the molded structure. The molded structure comprises thermo-electric traces and channels. The channels are between ten ?m and two hundred ?m, or less in one dimension. The dependent device comprises apertures corresponding to the channels and through which fluids, electromagnetic radiation, or a combination thereof is to travel. The dependent device also comprises contacts corresponding to the thermo-electric traces of the molded structure.Type: ApplicationFiled: August 23, 2023Publication date: December 7, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Michael W. Cumbie, Michael G. Groh
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Patent number: 11827021Abstract: A method includes applying a mold chase to a fluid ejection die to at least partially define at least one cavity. The mold chase includes a feature to contact a fluid ejection portion of the fluid ejection die, and at least one structure separate from the feature to contact a first end portion adjacent a first end of the fluid ejection die. The method includes filling the at least one cavity with a mold compound to produce a molded carrier for the fluid ejection die.Type: GrantFiled: February 6, 2019Date of Patent: November 28, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Christopher A. Leonard, Anthony M. Fuller
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Publication number: 20230356527Abstract: In various examples, a fluid ejection device may include a fluid ejection die formed with a first material and that includes a bondpad and a plurality of fluid ejectors, and a cover layer adjacent the fluid ejection die. The cover may be formed with a second material that is different than the first material and may include a first region that overlays the bondpad and a second region that overlays the plurality of fluid ejectors. In various examples, the first and second regions are separated by a break in the cover layer. The break may be filled with a third material that is different than one or both of the first and second material.Type: ApplicationFiled: July 14, 2023Publication date: November 9, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Michael W. Cumbie, Anthony M. Fuller, Chien-Hua Chen
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Patent number: 11807523Abstract: Examples include a device comprising integrated circuit dies molded into a molded panel. The molded panel has three-dimensional features formed therein, where the three-dimensional features are associated with the integrated circuit dies. To form the three-dimensional features, a feature formation material is deposited, the molded panel is formed, and the feature formation material is removed.Type: GrantFiled: September 22, 2021Date of Patent: November 7, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Devin A. Mourey, Michael G. Groh
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Patent number: 11780227Abstract: At times, devices, such as semiconductor devices, may be attached to molded structures. The molded structure may have through holes or channels through which fluids and gasses (among other things) may travel, A number of processes exist for creating molded structures with through holes or channels. For instance, build up processes, such as lithography on dry film, may be used to create molded structures with through holes or channels. Substrate bonding and/or welding may also be used to yield molded structures with through holes or channels.Type: GrantFiled: June 25, 2019Date of Patent: October 10, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Michael W Cumbie, Michael G Groh
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Patent number: 11780226Abstract: A fluid ejection device can include a nozzle plate incorporating a non-coplanar surface. The non-coplanar surface can include a hydrophilic region of a hydrophilic material having a water contact angle from about 50° to about 90° and a hydrophobic coating including a hydrophobic material having a water contact angle from about 91° to about 160°.Type: GrantFiled: April 14, 2021Date of Patent: October 10, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Michael G. Groh, Bo Song, Veronica Frances Burnett Krim
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Patent number: 11745507Abstract: In various examples, a fluid ejection device may include a fluid ejection die formed with a first material and that includes a bondpad and a plurality of fluid ejectors, and a cover layer adjacent the fluid ejection die. The cover may be formed with a second material that is different than the first material and may include a first region that overlays the bondpad and a second region that overlays the plurality of fluid ejectors. In various examples, the first and second regions are separated by a break in the cover layer. The break may be filled with a third material that is different than one or both of the first and second material.Type: GrantFiled: April 29, 2019Date of Patent: September 5, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Michael W. Cumbie, Anthony M. Fuller, Chien-Hua Chen
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Publication number: 20230264197Abstract: A microfluidic package may include a fluid passage, a substrate having a substrate surface adjacent an interior of the fluid passage and components inset in the substrate, the components having component surfaces adjacent the fluid passage and substantially flush with the substrate surface.Type: ApplicationFiled: April 28, 2023Publication date: August 24, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Michael W. Cumbie
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Publication number: 20230261036Abstract: A semiconductor device package includes a substrate, a first patterned conductive layer, a second patterned conductive layer, a dielectric layer, a third patterned conductive layer and a connector. The substrate has a top surface. The first patterned conductive layer is on the top surface of the substrate. The second patterned conductive layer contacts the first patterned conductive layer. The second patterned conductive layer includes a first portion, a second portion and a third portion. The second portion is connected between the first portion and the third portion. The dielectric layer is on the top surface of the substrate. The dielectric layer covers the first patterned conductive layer and surrounds the second portion and the third portion of the second patterned conductive layer. The first portion of the second patterned conductive layer is disposed on the dielectric layer.Type: ApplicationFiled: April 25, 2023Publication date: August 17, 2023Applicant: Advanced Semiconductor Engineering, Inc.Inventors: Chien-Hua CHEN, Teck-Chong LEE
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Patent number: 11721636Abstract: A circuit die may include an outermost circuit layer having electrical transmission routing and an alignment target overlying the outermost circuit layer.Type: GrantFiled: April 15, 2018Date of Patent: August 8, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Anthony M. Fuller, Michael W. Cumbie, Chien-Hua Chen
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Patent number: 11691431Abstract: A fluid circulation and ejection system may include a microfluidic die, a single orifice fluid ejector having a drive chamber in the microfluidic die and a pressurized fluid source remote from the microfluidic die to create a pressure gradient across the drive chamber to circulate fluid across the drive chamber.Type: GrantFiled: March 18, 2022Date of Patent: July 4, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Si-lam Choy, Michael W. Cumbie, Chien-Hua Chen
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Patent number: 11691423Abstract: Aspects of the present disclosure are directed to forming a layer of material on a print head. As may be implemented in a manner consistent with examples herein, a layer of material from a transfer film is pressed against a surface of a print head, in which the surface defines fluid nozzle openings that extend from the surface into the print head. Portions of the material pressed onto the surface are therein adhered to the surface and caused to wrap over edges of the surface extending around the openings. The transfer film is removed along with a thickness of the material pressed into contact with the surface that remains adhered to the transfer film, as well as some or all of other regions of the material over the openings. The remaining layer of the material on the surface is thus formed with a uniform thickness.Type: GrantFiled: July 30, 2019Date of Patent: July 4, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Michael G. Groh, Bo Song
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Patent number: 11673107Abstract: An example system includes a primary channel having a first end and a second end, at least two reagent reservoirs coupled to the first end, and a controller. Each reservoir contains a reagent in a fluid solution and is associated with an integrated pump to drive a reagent droplet from the corresponding reagent reservoir into the primary channel towards the second end. The controller is coupled to the integrated pumps and operates according to a sequence to actuate the integrated pumps, the sequence being indicative of reagents in the reagent reservoirs. The actuation of the pumps is to drive the reagent droplets from the reagent reservoirs into the primary channel in accordance with the sequence. The example system also includes a shell material reservoir with a shell material and an associated shell material pump to drive the shell material into the primary channel to encapsulate the reagent droplets.Type: GrantFiled: May 1, 2018Date of Patent: June 13, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Viktor Shkolnikov, Chien-Hua Chen
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Publication number: 20230173495Abstract: In an example implementation, a reagent storage system for a microfluidic device includes a microfluidic chamber formed in a microfluidic device. A blister pack to store a reagent includes an electrically conductive membrane barrier adjacent to the chamber. A thinned region is formed in the membrane barrier, and a conductive trace is to supply electric current to heat and melt the thinned region. Melting the thinned region is to cause the membrane barrier to open and release the reagent into the chamber.Type: ApplicationFiled: January 27, 2023Publication date: June 8, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Viktor Shkolnikov, Michael W. Cumbie, Chien-Hua Chen
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Patent number: 11666908Abstract: A microfluidic package may include a fluid passage, a substrate having a substrate surface adjacent an interior of the fluid passage and components inset in the substrate, the components having component surfaces adjacent the fluid passage and substantially flush with the substrate surface.Type: GrantFiled: September 14, 2017Date of Patent: June 6, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua Chen, Michael W. Cumbie
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Publication number: 20230166264Abstract: An example system includes an array of retaining features in a microfluidic cavity, an array of thermally controlled releasing features, and a controller coupled to each releasing feature in the array of releasing feature. Each retaining feature in the array of retaining features is to position capsules at a predetermined location, the capsules having a thermally degradable shell enclosing a biological reagent therein. Each releasing feature in the array of releasing features corresponds to a retaining feature and is to selectively cause degradation of the shell of a capsule. Each releasing feature is to generate thermal energy to facilitate degradation of the shell. The controller is to selectively activate at least one releasing feature in the array of thermally controlled releasing features to release the biological reagent in the capsules positioned at the retaining feature corresponding to the activated releasing feature.Type: ApplicationFiled: January 25, 2023Publication date: June 1, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Viktor Shkolnikov, Chien-Hua Chen
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Patent number: 11654680Abstract: In one example in accordance with the present disclosure, a fluidic ejection die is described. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an array of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an array of enclosed cross-channels. Each enclosed cross-channel of the array of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages.Type: GrantFiled: June 7, 2021Date of Patent: May 23, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Si-Iam Choy, Michael W. Cumbie, Chien-Hua Chen, Jeffrey R. Pollard
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Publication number: 20230150199Abstract: A fluid ejection device may include a fluid ejection die including nozzles and fluid feed holes. Each nozzle may have a nozzle orifice formed in a top surface of the fluid ejection die. The fluid feed holes may be formed in a bottom surface of the fluid ejection die and fluidly connected to the nozzles. The fluid ejection device may include a molded panel into which the fluid ejection die is at least partially embedded, the molded panel having a fluid slot formed therethrough such that the fluid slot is fluidly connected to the fluid feed holes of the fluid ejection die, the molded panel formed with a mold chase and a release liner coupled to and at least partially covering an interior surface of the mold chase, the mold chase having a fluid slot feature corresponding to the fluid slot.Type: ApplicationFiled: January 17, 2023Publication date: May 18, 2023Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Chien-Hua Chen, Michael W. Cumbie
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Publication number: 20230150198Abstract: A fluid ejection device may include a fluid ejection die including nozzles and fluid feed holes. Each nozzle may have a nozzle orifice formed in a top surface of the fluid ejection die. The fluid feed holes may be formed in a bottom surface of the fluid ejection die and fluidly connected to the nozzles. The fluid ejection device may include a molded panel into which the fluid ejection die is at least partially embedded, the molded panel having a fluid slot formed therethrough such that the fluid slot is fluidly connected to the fluid feed holes of the fluid ejection die, the molded panel formed with a mold chase and a release liner coupled to and at least partially covering an interior surface of the mold chase, the mold chase having a fluid slot feature corresponding to the fluid slot.Type: ApplicationFiled: January 17, 2023Publication date: May 18, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Chien-Hua CHEN, Michael W. Cumbie