Patents by Inventor Sen Mao
Sen Mao 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: 20230317453Abstract: A method of removing a hard mask layer includes providing a gate. A hard mask layer covers and contacts a top surface of the gate. Two spacer structures respectively contacts two sides of the gate. Two first spacers are respectively disposed on the two spacer structures. Later, a wet etching process is performed to remove the hard mask layer and the first spacers and keep the spacer structures. An etchant is utilized in the wet etching process. A selective etching ratio of the silicon nitride to silicon oxide of the etchant is more than 90. The etchant includes Si(OH)4. A concentration of Si(OH)4.is greater than or equal to 3.95 ppm and smaller than or equal to 10 ppm.Type: ApplicationFiled: April 6, 2022Publication date: October 5, 2023Applicant: United Semiconductor (Xiamen) Co., Ltd.Inventors: Sen Mao Feng, Ming Xuan Ren, Shih-Hsien Huang, Wen Yi TAN
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Publication number: 20210082792Abstract: An electric device with terminal notches includes a main body, a plurality of SMT leads and a plurality of plating layers. Each of the SMT leads is extended from the main body and ended up with a lead end surface furnished with a terminal notch, where the terminal notch has a notch peripheral surface. Each of the plating layers covers at least the notch peripheral surface of the corresponding SMT lead. In addition, a method for manufacturing the same electric device with terminal notches is also provided.Type: ApplicationFiled: October 23, 2019Publication date: March 18, 2021Inventors: Chien-Chung CHEN, Sen MAO, Peng YEH
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Patent number: 10546840Abstract: In one embodiment, a method can include coupling a gate and a source of a first die to a lead frame. The first die can include the gate and the source that are located on a first surface of the first die and a drain that is located on a second surface of the first die that is opposite the first surface. In addition, the method can include coupling a source of a second die to the drain of the first die. The second die can include a gate and the source that are located on a first surface of the second die and a drain that is located on a second surface of the second die that is opposite the first surface.Type: GrantFiled: February 22, 2017Date of Patent: January 28, 2020Assignee: Vishay Siliconix, LLCInventors: Kyle Terrill, Frank Kuo, Sen Mao
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Patent number: 10090298Abstract: An integrated packaging structure is provided. In the package structure, an integrated component body has a first source region, a second source region, a first setting region, and a second setting region, which are separated from each other. A first MOSFET die and a second MOSFET die are located on the first setting region and the second setting region respectively, and have a top surface, a source electrode pad and a gate electrode pad. The source electrode pad and the gate electrode pad are exposed from the top surface and spaced apart from each other. A first source connection element is connected to the source electrode pad of the first MOSFET die and the first source region. A second source connection element is connected to the source electrode pad of the second MOSFET die and the second source region. A gate connection element is connected to the gate electrode pad and a gate region of the integrated component body.Type: GrantFiled: March 2, 2017Date of Patent: October 2, 2018Assignee: TAIWAN SEMICONDUCTOR CO., LTD.Inventors: Chien-Chung Chen, Sen Mao, Hsin-Liang Lin
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Patent number: 10056355Abstract: A common-source type package structure is provided in the present invention. In the package structure, an integrated component body is configured a common-source pin region, a first arrangement region and a second arrangement region. The second and first arrangement regions are spaced apart from each other. A first MOSFET die and a second MOSFET are respectively located at the first and second arrangement region respectively, and have a top surface, a source electrode pad and a gate electrode pad. The source electrode pad and the gate electrode pad are exposed to the top surface and spaced apart from each other. A common-source connection element is connected to the source electrode pad and the common-source pin region. A gate connection element is connected to the gate electrode pad and a gate pin region of the integrated component body.Type: GrantFiled: November 3, 2017Date of Patent: August 21, 2018Assignee: Taiwan Semiconductor Co., Ltd.Inventors: Chien-Chung Chen, Sen Mao, Hsin-Liang Lin
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Publication number: 20180211953Abstract: An integrated packaging structure is provided. In the package structure, an integrated component body has a first source region, a second source region, a first setting region, and a second setting region, which are separated from each other. A first MOSFET die and a second MOSFET die are located on the first setting region and the second setting region respectively, and have a top surface, a source electrode pad and a gate electrode pad. The source electrode pad and the gate electrode pad are exposed from the top surface and spaced apart from each other. A first source connection element is connected to the source electrode pad of the first MOSFET die and the first source region. A second source connection element is connected to the source electrode pad of the second MOSFET die and the second source region. A gate connection element is connected to the gate electrode pad and a gate region of the integrated component body.Type: ApplicationFiled: March 2, 2017Publication date: July 26, 2018Inventors: Chien-Chung CHEN, Sen MAO, Hsin-Liang LIN
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Publication number: 20180166423Abstract: A common-source type package structure is provided in the present invention. In the package structure, an integrated component body is configured a common-source pin region, a first arrangement region and a second arrangement region. The second and first arrangement regions are spaced apart from each other. A first MOSFET die and a second MOSFET are respectively located at the first and second arrangement region respectively, and have a top surface, a source electrode pad and a gate electrode pad. The source electrode pad and the gate electrode pad are exposed to the top surface and spaced apart from each other. A common-source connection element is connected to the source electrode pad and the common-source pin region. A gate connection element is connected to the gate electrode pad and a gate pin region of the integrated component body.Type: ApplicationFiled: November 3, 2017Publication date: June 14, 2018Inventors: Chien-Chung CHEN, Sen MAO, Hsin-Liang LIN
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Publication number: 20180166422Abstract: A common-source type package structure is provided in the present invention. In the package structure, an integrated component body is configured a common-source pin region, a first arrangement region and a second arrangement region. The second and first arrangement regions are spaced apart from each other. A first MOSFET die and a second MOSFET are respectively located at the first and second arrangement region respectively, and have a top surface, a source electrode pad and a gate electrode pad. The source electrode pad and the gate electrode pad are exposed to the top surface and spaced apart from each other. A common-source connection element is connected to the source electrode pad and the common-source pin region. A gate connection element is connected to the gate electrode pad and a gate pin region of the integrated component body.Type: ApplicationFiled: February 22, 2017Publication date: June 14, 2018Inventors: Chien-Chung CHEN, Sen MAO, Hsin-Liang LIN
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Patent number: 9997500Abstract: A common-source type package structure is provided in the present invention. In the package structure, an integrated component body is configured a common-source pin region, a first arrangement region and a second arrangement region. The second and first arrangement regions are spaced apart from each other. A first MOSFET die and a second MOSFET are respectively located at the first and second arrangement region respectively, and have a top surface, a source electrode pad and a gate electrode pad. The source electrode pad and the gate electrode pad are exposed to the top surface and spaced apart from each other. A common-source connection element is connected to the source electrode pad and the common-source pin region. A gate connection element is connected to the gate electrode pad and a gate pin region of the integrated component body.Type: GrantFiled: February 22, 2017Date of Patent: June 12, 2018Assignee: TAIWAN SEMICONDUCTOR CO., LTD.Inventors: Chien-Chung Chen, Sen Mao, Hsin-Liang Lin
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Patent number: 9966330Abstract: In one embodiment, a stack die package can include a lead frame and a first die including a gate and a source that are located on a first surface of the first die and a drain that is located on a second surface of the first die that is opposite the first surface. The gate and source are flip chip coupled to the lead frame. The stack die package can include a second die including a gate and a drain that are located on a first surface of the second die and a source that is located on a second surface of the second die that is opposite the first surface. The source of the second die is facing the drain of the first die.Type: GrantFiled: March 14, 2013Date of Patent: May 8, 2018Assignee: Vishay-SiliconixInventors: Kyle Terrill, Frank Kuo, Sen Mao
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Publication number: 20170162403Abstract: In one embodiment, a method can include coupling a gate and a source of a first die to a lead frame. The first die can include the gate and the source that are located on a first surface of the first die and a drain that is located on a second surface of the first die that is opposite the first surface. In addition, the method can include coupling a source of a second die to the drain of the first die. The second die can include a gate and the source that are located on a first surface of the second die and a drain that is located on a second surface of the second die that is opposite the first surface.Type: ApplicationFiled: February 22, 2017Publication date: June 8, 2017Inventors: Kyle TERRILL, Frank KUO, Sen MAO
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Patent number: 9589929Abstract: In one embodiment, a method can include coupling a gate and a source of a first die to a lead frame. The first die can include the gate and the source that are located on a first surface of the first die and a drain that is located on a second surface of the first die that is opposite the first surface. In addition, the method can include coupling a source of a second die to the drain of the first die. The second die can include a gate and a drain that are located on a first surface of the second die and the source that is located on a second surface of the second die that is opposite the first surface.Type: GrantFiled: March 14, 2013Date of Patent: March 7, 2017Assignee: Vishay-SiliconixInventors: Kyle Terrill, Frank Kuo, Sen Mao
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Publication number: 20150331438Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.Type: ApplicationFiled: July 28, 2015Publication date: November 19, 2015Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
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Patent number: 9093359Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.Type: GrantFiled: June 30, 2006Date of Patent: July 28, 2015Assignee: Vishay-SiliconixInventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
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Patent number: 8928138Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.Type: GrantFiled: May 13, 2010Date of Patent: January 6, 2015Assignee: Vishay-SiliconixInventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
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Publication number: 20140264804Abstract: In one embodiment, a stack die package can include a lead frame and a first die including a gate and a source that are located on a first surface of the first die and a drain that is located on a second surface of the first die that is opposite the first surface. The gate and source are flip chip coupled to the lead frame. The stack die package can include a second die including a gate and a drain that are located on a first surface of the second die and a source that is located on a second surface of the second die that is opposite the first surface. The source of the second die is facing the drain of the first die.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: VISHAY-SILICONIXInventors: Kyle TERRILL, Frank KUO, Sen MAO
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Publication number: 20140273344Abstract: In one embodiment, a method can include coupling a gate and a source of a first die to a lead frame. The first die can include the gate and the source that are located on a first surface of the first die and a drain that is located on a second surface of the first die that is opposite the first surface. In addition, the method can include coupling a source of a second die to the drain of the first die. The second die can include a gate and a drain that are located on a first surface of the second die and the source that is located on a second surface of the second die that is opposite the first surface.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: VISHAY-SILICONIXInventors: Kyle TERRILL, Frank KUO, Sen MAO
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Publication number: 20140042239Abstract: Disclosed is a fragrance container including a container body and a cover. The container body includes a plurality of chambers, each for containing fragrance. The cover is movably installed to the container body and provided for opening and closing each chamber of the container body, and the cover has a guide passage communicated to the outside and movable to a position corresponding to each chamber separately. Since the container body can contain fragrances of different smells in each chamber and the guide passage of the cover can be moved to a position corresponding to each chamber of the container body, the fragrances in different chambers can be dispersed to the outside to achieve the effects of providing users a choice of fragrances and a diversified application at appropriate time conveniently.Type: ApplicationFiled: March 8, 2013Publication date: February 13, 2014Inventor: SEN-MAO YEH
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Patent number: 8586419Abstract: The present technology is directed toward semiconductors packaged by electrically coupling a plurality of die to an upper and lower lead frame. The opposite edges of each corresponding set of leads in the upper lead frame are bent. The leads in the upper lead frame are electrically coupled between respective contacts on respective die and respective lower portion of the leads in the lower lead frame. The bent opposite edges of each corresponding set of leads of the upper lead frame support the upper lead frame before encapsulation, for achieving a desired position of the plurality of die between the leads of the upper and lower lead frames in the packaged semiconductor. After the encapsulated die are separated, the upper leads have an L-shape and electrically couple die contacts on upper side of the die to leads on the lower side of the die so that the package contacts are on the same side of the semiconductor package.Type: GrantFiled: March 24, 2010Date of Patent: November 19, 2013Assignee: Vishay-SiliconixInventors: Serge Jaunay, Suresh Belani, Frank Kuo, Sen Mao, Peter Wang
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Patent number: 8471381Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.Type: GrantFiled: June 30, 2006Date of Patent: June 25, 2013Assignee: Vishay-SiliconixInventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo