Patents by Inventor Jia Xin Mei
Jia Xin Mei 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: 9334159Abstract: The invention relates to an integrated chip with an MEMS and an integrated circuit mounted therein and a method for manufacturing the same. The method includes the steps of: S1: providing a first chip, wherein the first chip comprises a first substrate, an MEMS component layer formed on the first substrate and comprising a first electrical bonding point disposed on MEMS the component layer; S2: providing a second chip with an IC integrated circuit, wherein the second chip comprises a second lead layer and a second electrical bonding point; S3: bonding the first electrical bonding point and the second electrical bonding point; S4: processing a thinning operation for the bottom surface of the first substrate; and S5: forming an electrical connection layer electrically connected to an external circuit on the bottom surface of the first substrate.Type: GrantFiled: October 11, 2013Date of Patent: May 10, 2016Assignee: MEMSENSING MICROSYSTEMS (SUZHOU, CHINA) CO., LTD.Inventors: Gang Li, Wei Hu, Jia-Xin Mei, Rui-Fen Zhuang
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Patent number: 9221675Abstract: A method for integrating an IC and a MEMS component includes the following steps: S1) providing a SOI base (20) having a first area (21) and a second area (22); S2) fabricating an IC on the first area through a standard semiconductor process, and simultaneously forming a metal conductive layer (26) and a medium insulation layer (25c) extending to the second area; S3) partly removing the medium insulation layer and then further partly removing the silicon component layer so as to form a backplate diagram; S4) depositing a sacrificial layer (32) above the SOI base; S5) forming a Poly Sil-xGex film (33) on the sacrificial layer; S6) forming a back cavity (34); and S7) eroding the sacrificial layer to form a chamber (36) in communication with the back cavity. Besides, a chip (10) fabricated by the above method is also disclosed.Type: GrantFiled: July 30, 2012Date of Patent: December 29, 2015Assignee: MEMSENSING MICROSYSTEMS TECHNOLOGY CO., LTDInventors: Wei Hu, Gang Li, Jia-Xin Mei
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Publication number: 20140332909Abstract: The invention relates to an integrated chip with an MEMS and an integrated circuit mounted therein and a method for manufacturing the same. The method includes the steps of: S1: providing a first chip, wherein the first chip comprises a first substrate, an MEMS component layer formed on the first substrate and comprising a first electrical bonding point disposed on MEMS the component layer; S2: providing a second chip with an IC integrated circuit, wherein the second chip comprises a second lead layer and a second electrical bonding point; S3: bonding the first electrical bonding point and the second electrical bonding point; S4: processing a thinning operation for the bottom surface of the first substrate; and S5: forming an electrical connection layer electrically connected to an external circuit on the bottom surface of the first substrate.Type: ApplicationFiled: October 11, 2013Publication date: November 13, 2014Applicant: MEMSensing Microsystems (Suzhou, China) Co., Ltd.Inventors: Gang Li, Wei Hu, Jia-Xin Mei, Rui-Fen Zhuang
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Patent number: 8621941Abstract: A feedback system for identifying an external force, includes an operation plate and a pressure-sensing unit. The pressure-sensing unit includes an elastic member supporting the operation plate and a pressure sensor inside the elastic member. The pressure sensor includes a pressure sensitive film. An inner side of the elastic member is filled with fluid material which acts on the pressure sensitive film. The operation plate is driven by the external force to be slant which extrudes the elastic member to deform so as to change fluid pressure of the fluid material limited in the elastic member, and such change of the fluid pressure can be sensed by the pressure sensitive film of the pressure sensor so as to identify the movement and the intensity of the external force.Type: GrantFiled: October 23, 2010Date of Patent: January 7, 2014Assignee: Memsensing Microsystems Technology Co., Ltd.Inventors: Jia-Xin Mei, Gang Li, Hong-Yuan Yang
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Publication number: 20130202136Abstract: A method for integrating an IC and a MEMS component includes the following steps: S1) providing a SOI base (20) having a first area (21) and a second area (22); S2) fabricating an IC on the first area through a standard semiconductor process, and simultaneously forming a metal conductive layer (26) and a medium insulation layer (25c) extending to the second area; S3) partly removing the medium insulation layer and then further partly removing the silicon component layer so as to form a backplate diagram; S4) depositing a sacrificial layer (32) above the SOI base; S5) forming a Poly Sil-xGex film (33) on the sacrificial layer; S6) forming a back cavity (34); and S7) eroding the sacrificial layer to form a chamber (36) in communication with the back cavity. Besides, a chip (10) fabricated by the above method is also disclosed.Type: ApplicationFiled: July 30, 2012Publication date: August 8, 2013Applicant: MEMSensing Microsystems Technology Co., Ltd.Inventors: Wei Hu, Gang Li, Jia-Xin Mei
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Patent number: 8482357Abstract: A transverse acoustic wave resonator includes a base, a resonator component, a number of driving electrodes fixed to the base and a number of fixing portions connecting the base and the resonator component. The resonator component is suspended above a top surface of the base and is perpendicular to the base. The driving electrodes are coupling to side surfaces of the resonator component. The resonator component is formed in a shape of an essential regular polygon. The driving electrodes and the resonator component jointly form an electromechanical coupling system for converting capacitance into electrostatic force. Besides, a capacitive-type transverse extension acoustic wave silicon oscillator includes the transverse acoustic wave resonator and a method of fabricating the transverse acoustic wave resonator are also disclosed.Type: GrantFiled: December 2, 2011Date of Patent: July 9, 2013Assignee: Memsensing Microsystems Technology Co., LtdInventors: Bin Xiao, Ping Lv, Wei Hu, Jia-Xin Mei, Gang Li
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Patent number: 8472647Abstract: A surface mountable package includes a base and a cover with a cavity defined thereby, and an acoustic transducer unit received in the cavity. The cover includes a first metal ring to enclose the acoustic transducer unit. The base includes a second metal ring to press against the first metal ring in order to form a metal shielding area. First and second metal connecting paths are formed electrically connected to the metal shielding area and the acoustic transducer unit, respectively. Besides, two pairs of first and second surface mountable metal electrodes are electrically connected to the first and the second metal connecting paths, respectively. As a result, the package can be selectively double surface mountable to a user's circuit board via the metal electrodes of the base or the metal electrodes of the cover.Type: GrantFiled: April 1, 2009Date of Patent: June 25, 2013Assignee: Memsensing Microsystems Co., Ltd.Inventors: Jia-Xin Mei, Gang Li
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Publication number: 20130093527Abstract: A transverse acoustic wave resonator includes a base, a resonator component, a number of driving electrodes fixed to the base and a number of fixing portions connecting the base and the resonator component. The resonator component is suspended above a top surface of the base and is perpendicular to the base. The driving electrodes are coupling to side surfaces of the resonator component. The resonator component is formed in a shape of an essential regular polygon. The driving electrodes and the resonator component jointly form an electromechanical coupling system for converting capacitance into electrostatic force. Besides, a capacitive-type transverse extension acoustic wave silicon oscillator includes the transverse acoustic wave resonator and a method of fabricating the transverse acoustic wave resonator are also disclosed.Type: ApplicationFiled: December 2, 2011Publication date: April 18, 2013Applicant: MEMSensing Microsystems Technology Co., LTD.Inventors: BIN XIAO, Ping Lv, Wei Hu, Jia-Xin Mei, Gang Li
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Publication number: 20120042735Abstract: A feedback system for identifying an external force, includes an operation plate and a pressure-sensing unit. The pressure-sensing unit includes an elastic member supporting the operation plate and a pressure sensor inside the elastic member. The pressure sensor includes a pressure sensitive film. An inner side of the elastic member is filled with fluid material which acts on the pressure sensitive film. The operation plate is driven by the external force to be slant which extrudes the elastic member to deform so as to change fluid pressure of the fluid material limited in the elastic member, and such change of the fluid pressure can be sensed by the pressure sensitive film of the pressure sensor so as to identify the movement and the intensity of the external force.Type: ApplicationFiled: October 23, 2010Publication date: February 23, 2012Applicant: MEMSENSING MICROSYSTEMS TECHNOLOGY CO., LTD.Inventors: Jia-Xin Mei, Gang Li, Hong-Yuan Yang
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Patent number: 8103028Abstract: An electrostatic loudspeaker includes a backplate having a metal film acting as one electrode of a capacitor and defining a number of sound apertures therein; a diaphragm insulatively spaced a distance from the backplate to form the capacitor; the diaphragm comprising a metal film acting as the other electrode of the capacitor; a back chamber having a substrate and an insulative spacer for joining edge portions of the diaphragm and the substrate; a driving circuit element for converting electrical signals from exterior input pads into driving signals to drive the diaphragm to vibrate and sound; the driving circuit element being mounted on an inner surface of the substrate and being accommodated in the back chamber; and a first, second and third connection paths for respectively electrically connecting the driving circuit element with the two electrodes of the capacitor, and the exterior input pads. An electrostatic loudspeaker with two backplates is also disclosed.Type: GrantFiled: September 30, 2009Date of Patent: January 24, 2012Inventors: Gang Li, Wei Hu, Jia Xin Mei
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Publication number: 20110007914Abstract: An electrostatic loudspeaker includes a backplate having a metal film acting as one electrode of a capacitor and defining a number of sound apertures therein; a diaphragm insulatively spaced a distance from the backplate to form the capacitor; the diaphragm comprising a metal film acting as the other electrode of the capacitor; a back chamber having a substrate and an insulative spacer for joining edge portions of the diaphragm and the substrate; a driving circuit element for converting electrical signals from exterior input pads into driving signals to drive the diaphragm to vibrate and sound; the driving circuit element being mounted on an inner surface of the substrate and being accommodated in the back chamber; and a first, second and third connection paths for respectively electrically connecting the driving circuit element with the two electrodes of the capacitor, and the exterior input pads. An electrostatic loudspeaker with two backplates is also disclosed.Type: ApplicationFiled: September 30, 2009Publication date: January 13, 2011Inventors: Gang Li, Wei Hu, Jia Xin Mei
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Publication number: 20100258950Abstract: A multichip package includes a first chip and a second chip coupled with the first chip. The first chip includes a first base with a semiconductor device mounted on one side of the first base, a first electrical connection unit, a first bonding ring surrounding the semiconductor device, a first insulating layer formed on the other side of the first base and a first external bonding portion formed on the first insulating layer. The first external bonding portion is electrically connected to the first electrical connection unit. The second chip includes an integrated circuit corresponding to the semiconductor device, a second electrical connection unit fusing with the first electrical connection unit, and a second bonding ring fusing with the first bonding ring in order to form a hermetic cavity surrounding the semiconductor device, the integrated circuit, the first electrical connection unit and the second electrical connection unit.Type: ApplicationFiled: August 20, 2009Publication date: October 14, 2010Inventors: GANG LI, Wei Hu, Jia-Xin Mei
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Publication number: 20090257614Abstract: A surface mountable package includes a base and a cover with a cavity defined thereby, and an acoustic transducer unit received in the cavity. The cover includes a first metal ring to enclose the acoustic transducer unit. The base includes a second metal ring to press against the first metal ring in order to form a metal shielding area. First and second metal connecting paths are formed electrically connected to the metal shielding area and the acoustic transducer unit, respectively. Besides, two pairs of first and second surface mountable metal electrodes are electrically connected to the first and the second metal connecting paths, respectively. As a result, the package can be selectively double surface mountable to a user's circuit board via the metal electrodes of the base or the metal electrodes of the cover.Type: ApplicationFiled: April 1, 2009Publication date: October 15, 2009Inventors: Jia-Xin Mei, Gang Li