Patents by Inventor Che-Fu Liang
Che-Fu Liang 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: 20210373168Abstract: A photo-detecting apparatus is provided. The photo-detecting apparatus includes: a substrate made by a first material or a first material-composite; an absorption layer made by a second material or a second material-composite, the absorption layer being supported by the substrate and the absorption layer including: a first surface; a second surface arranged between the first surface and the substrate; and a channel region having a dopant profile with a peak dopant concentration equal to or more than 1×1015 cm?3, wherein a distance between the first surface and a location of the channel region having the peak dopant concentration is less than a distance between the second surface and the location of the channel region having the peak dopant concentration, and wherein the distance between the first surface and the location of the channel region having the peak dopant concentration is not less than 30 nm.Type: ApplicationFiled: August 17, 2021Publication date: December 2, 2021Inventors: Szu-Lin Cheng, Chien-Yu Chen, Shu-Lu Chen, Yun-Chung Na, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang, Jung-Chin Chiang, Yen-Cheng Lu, Yen-Ju Lin
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Publication number: 20210314656Abstract: A HDMI apparatus is provided. The HDMI apparatus includes a first audio/video transceiver (A/V transceiver) configured to transmit an optical A/V signal to a second A/V transceiver; and a first sideband transceiver configured to drive a first laser diode to transmit a first optical sideband signal including a first control information or a first power information; wherein the first control information or the first power information is converted by a first Serializer/Deserializer (SERDES).Type: ApplicationFiled: June 14, 2021Publication date: October 7, 2021Inventors: Shao-Hung Lin, Chang-Lin Hsieh, Che-Fu Liang
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Publication number: 20210302549Abstract: An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.Type: ApplicationFiled: June 10, 2021Publication date: September 30, 2021Inventors: Yun-Chung Na, Che-Fu Liang
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Patent number: 11131757Abstract: An apparatus including a semiconductor substrate; an absorption layer coupled to the semiconductor substrate, the absorption layer including a photodiode region configured to absorb photons and to generate photo-carriers from the absorbed photons; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, where the second control signal is different from the first control signal.Type: GrantFiled: April 22, 2020Date of Patent: September 28, 2021Assignee: Artilux, Inc.Inventors: Yun-Chung Na, Che-Fu Liang
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Patent number: 11105928Abstract: A photo-detecting apparatus is provided. The photo-detecting apparatus includes: a substrate made by a first material or a first material-composite; an absorption layer made by a second material or a second material-composite, the absorption layer being supported by the substrate and the absorption layer including: a first surface; a second surface arranged between the first surface and the substrate; and a channel region having a dopant profile with a peak dopant concentration equal to or more than 1×1015 cm?3, wherein a distance between the first surface and a location of the channel region having the peak dopant concentration is less than a distance between the second surface and the location of the channel region having the peak dopant concentration, and wherein the distance between the first surface and the location of the channel region having the peak dopant concentration is not less than 30 nm.Type: GrantFiled: June 18, 2020Date of Patent: August 31, 2021Assignee: Artilux, Inc.Inventors: Szu-Lin Cheng, Chien-Yu Chen, Shu-Lu Chen, Yun-Chung Na, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang, Jung-Chin Chiang, Yen-Cheng Lu, Yen-Ju Lin
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Publication number: 20210225922Abstract: A circuit that includes: a photodiode configured to absorb photons and to generate photo-carriers from the absorbed photons; a first MOSFET transistor that includes: a first channel terminal coupled to a first terminal of the photodiode and configured to collect a portion of the photo-carriers generated by the photodiode; a second channel terminal; and a gate terminal coupled to a first control voltage source; a first readout circuit configured to output a first readout voltage; a second readout circuit configured to output a second readout voltage; and a current-steering circuit configured to steer the photo-carriers generated by the photodiode to one or both of the first readout circuit and the second readout circuit.Type: ApplicationFiled: March 22, 2021Publication date: July 22, 2021Inventors: Yun-Chung Na, Szu-Lin Cheng, Shu-Lu Chen, Han-Din Liu, Hui-Wen Chen, Che-Fu Liang, Yuan-Fu Lyu, Chien-Lung Chen, Chung-Chih Lin, Kuan-Chen Chu
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Patent number: 11039202Abstract: A HDMI apparatus is provided. The HDMI apparatus includes a first audio/video transceiver (A/V transceiver) configured to transmit an optical A/V signal to a second A/V transceiver; and a first sideband transceiver configured to drive a first laser diode to transmit a first optical sideband signal including a first control information or a first power information; wherein the first control information or the first power information is converted by a first Serializer/Deserializer (SERDES).Type: GrantFiled: April 30, 2020Date of Patent: June 15, 2021Assignee: Artilux, Inc.Inventors: Shao-Hung Lin, Chang-Lin Hsieh, Che-Fu Liang
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Publication number: 20210126027Abstract: An optical apparatus including a semiconductor substrate; a first light absorption region supported by the semiconductor substrate, the first light absorption region including germanium and configured to absorb photons and to generate photo-carriers from the absorbed photons; a first layer supported by at least a portion of the semiconductor substrate and the first light absorption region, the first layer being different from the first light absorption region; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, wherein the second control signal is different from the first control signal.Type: ApplicationFiled: December 22, 2020Publication date: April 29, 2021Inventors: Yun-Chung Na, Che-Fu Liang, Szu-Lin Cheng, Shu-Lu Chen, Kuan-Chen Chu, Chung-Chih Lin, Han-Din Liu
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Patent number: 10964742Abstract: A circuit that includes: a photodiode configured to absorb photons and to generate photo-carriers from the absorbed photons; a first MOSFET transistor that includes: a first channel terminal coupled to a first terminal of the photodiode and configured to collect a portion of the photo-carriers generated by the photodiode; a second channel terminal; and a gate terminal coupled to a first control voltage source; a first readout circuit configured to output a first readout voltage; a second readout circuit configured to output a second readout voltage; and a current-steering circuit configured to steer the photo-carriers generated by the photodiode to one or both of the first readout circuit and the second readout circuit.Type: GrantFiled: January 24, 2020Date of Patent: March 30, 2021Assignee: Artilux, Inc.Inventors: Yun-Chung Na, Szu-Lin Cheng, Shu-Lu Chen, Han-Din Liu, Hui-Wen Chen, Che-Fu Liang, Yuan-Fu Lyu, Chien-Lung Chen, Chung-Chih Lin, Kuan-Chen Chu
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Publication number: 20210020672Abstract: A photo-detecting apparatus includes an absorption layer configured to absorb photons and to generate photo-carriers from the absorbed photons, wherein the absorption layer includes germanium. A carrier guiding unit is electrically coupled to the absorption layer, wherein the carrier guiding unit includes a first switch including a first gate terminal.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Inventors: Chien-Yu Chen, Yun-Chung Na, Szu-Lin Cheng, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang
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Patent number: 10886311Abstract: A photo-detecting apparatus includes an absorption layer configured to absorb photons and to generate photo-carriers from the absorbed photons, wherein the absorption layer includes germanium. A carrier guiding unit is electrically coupled to the absorption layer, wherein the carrier guiding unit includes a first switch including a first gate terminal.Type: GrantFiled: April 8, 2019Date of Patent: January 5, 2021Assignee: Artilux, Inc.Inventors: Chien-Yu Chen, Yun-Chung Na, Szu-Lin Cheng, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang
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Patent number: 10886309Abstract: An optical apparatus including a semiconductor substrate; a first light absorption region supported by the semiconductor substrate, the first light absorption region including germanium and configured to absorb photons and to generate photo-carriers from the absorbed photons; a first layer supported by at least a portion of the semiconductor substrate and the first light absorption region, the first layer being different from the first light absorption region; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, wherein the second control signal is different from the first control signal.Type: GrantFiled: February 28, 2018Date of Patent: January 5, 2021Assignee: Artilux, Inc.Inventors: Yun-Chung Na, Che-Fu Liang, Szu-Lin Cheng, Shu-Lu Chen, Kuan-Chen Chu, Chung-Chih Lin, Han-Din Liu
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Patent number: 10886312Abstract: An optical apparatus including a semiconductor substrate; a first light absorption region supported by the semiconductor substrate, the first light absorption region including germanium and configured to absorb photons and to generate photo-carriers from the absorbed photons; a first layer supported by at least a portion of the semiconductor substrate and the first light absorption region, the first layer being different from the first light absorption region; one or more first switches controlled by a first control signal, the one or more first switches configured to collect at least a portion of the photo-carriers based on the first control signal; and one or more second switches controlled by a second control signal, the one or more second switches configured to collect at least a portion of the photo-carriers based on the second control signal, wherein the second control signal is different from the first control signal.Type: GrantFiled: October 18, 2019Date of Patent: January 5, 2021Assignee: Artilux, Inc.Inventors: Yun-Chung Na, Che-Fu Liang, Szu-Lin Cheng, Shu-Lu Chen, Kuan-Chen Chu, Chung-Chih Lin, Han-Din Liu
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Publication number: 20200400797Abstract: A photo-detecting apparatus includes a first photodetector, a second photodetector, a first modulation signal generating circuit and a second modulation signal generating circuit. The first is configured to generate at least a first detecting signal according a first modulation signal. The second photodetector is configured to generate a second detecting signal according a second modulation signal. The first modulation signal generating circuit is coupled to the first photodetector and operated between a first voltage and a second voltage, and is configured to generate the first modulation signal. The second modulation signal generating circuit is coupled to the second photodetector and operated between the second voltage and a third voltage. The second modulation signal generating circuit is configured to generate a second modulation signal. The value of the second voltage is between the first voltage and the third voltage.Type: ApplicationFiled: June 18, 2020Publication date: December 24, 2020Inventor: Che-Fu Liang
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Publication number: 20200395393Abstract: A photo-detecting apparatus is provided. The photo-detecting apparatus includes at least one pixel, and each pixel includes N subpixels, wherein each of the subpixels comprises a detection region, two first conductive contacts, wherein the detection region is between the two first conductive contacts, wherein N is a positive integer and is ?2.Type: ApplicationFiled: August 27, 2020Publication date: December 17, 2020Inventors: Szu-Lin Cheng, Chien-Yu Chen, Shu-Lu Chen, Yun-Chung Na, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang
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Patent number: 10861888Abstract: An optical apparatus that includes: a semiconductor substrate formed from a first material, the semiconductor substrate including a first n-doped region; and a photodiode supported by the semiconductor substrate, the photodiode including an absorption region configured to absorb photons and to generate photo-carriers from the absorbed photons, the absorption region being formed from a second material different than the first material and including: a first p-doped region; and a second n-doped region coupled to the first n-doped region, wherein a second doping concentration of the second n-doped region is less than or substantially equal to a first doping concentration of the first n-doped region.Type: GrantFiled: April 12, 2018Date of Patent: December 8, 2020Assignee: Artilux, Inc.Inventors: Yun-Chung Na, Szu-Lin Cheng, Shu-Lu Chen, Han-Din Liu, Hui-Wen Chen, Che-Fu Liang, Yuan-Fu Lyu, Chien-Lung Chen, Chung-Chih Lin, Kuan-Chen Chu
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Publication number: 20200381891Abstract: A laser driving apparatus includes a driver, a tracking circuit, a comparator and a control circuit. The driver includes a laser driving circuit, and the tracking circuit includes a reference current source and a replica circuit. The laser driving circuit generates a driving current to drive a laser. The reference current source generates a reference current as a reference for the laser driving apparatus. The replica circuit corresponds to at least a portion of the laser driving circuit, generates a sensing current according to the reference current and track the driving current. The comparator compares voltages respectively on the laser driving circuit and the replica circuit to generate a comparison signal. The control circuit adjusts the sensing current or the driving current according to the comparison signal. The laser driving apparatus can include multiple channels with multiple drivers.Type: ApplicationFiled: May 28, 2020Publication date: December 3, 2020Inventors: Ding-Shiuan Shen, Che-Fu Liang
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Publication number: 20200359084Abstract: A HDMI apparatus is provided. The HDMI apparatus includes a first audio/video transceiver (A/V transceiver) configured to transmit an optical A/V signal to a second A/V transceiver; and a first sideband transceiver configured to drive a first laser diode to transmit a first optical sideband signal including a first control information or a first power information; wherein the first control information or the first power information is converted by a first Serializer/Deserializer (SERDES).Type: ApplicationFiled: April 30, 2020Publication date: November 12, 2020Inventors: Shao-Hung Lin, Chang-Lin Hsieh, Che-Fu Liang
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Publication number: 20200350347Abstract: A method for fabricating an image sensor array having a first group of photodiodes for detecting light at visible wavelengths a second group of photodiodes for detecting light at infrared or near-infrared wavelengths, the method including growing a germanium-silicon layer on a semiconductor donor wafer; defining pixels of the image sensor array on the germanium-silicon layer; defining a first interconnect layer on the germanium-silicon layer, wherein the interconnect layer includes a plurality of interconnects coupled to the first group of photodiodes and the second group of photodiodes; defining integrated circuitry for controlling the pixels of the image sensor array on a semiconductor carrier wafer; defining a second interconnect layer on the semiconductor carrier wafer, wherein the second interconnect layer includes a plurality of interconnects coupled to the integrated circuitry; and bonding the first interconnect layer with the second interconnect layer.Type: ApplicationFiled: July 15, 2020Publication date: November 5, 2020Inventors: Yun-Chung Na, Szu-Lin Cheng, Shu-Lu Chen, Han-Din Liu, Hui-Wen Chen, Che-Fu Liang
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Publication number: 20200319345Abstract: A photo-detecting apparatus is provided. The photo-detecting apparatus includes: a substrate made by a first material or a first material-composite; an absorption layer made by a second material or a second material-composite, the absorption layer being supported by the substrate and the absorption layer including: a first surface; a second surface arranged between the first surface and the substrate; and a channel region having a dopant profile with a peak dopant concentration equal to or more than 1×1015 cm?3, wherein a distance between the first surface and a location of the channel region having the peak dopant concentration is less than a distance between the second surface and the location of the channel region having the peak dopant concentration, and wherein the distance between the first surface and the location of the channel region having the peak dopant concentration is not less than 30 nm.Type: ApplicationFiled: June 18, 2020Publication date: October 8, 2020Inventors: Szu-Lin Cheng, Chien-Yu Chen, Shu-Lu Chen, Yun-Chung Na, Ming-Jay Yang, Han-Din Liu, Che-Fu Liang, Jung-Chin Chiang, Yen-Cheng Lu, Yen-Ju Lin