公开(公告)号：US09924254B2

公开(公告)日：2018-03-20

申请号：US15416744

申请日：2017-01-26

申请人： Kai Wang ,  Hu Chen ,  Guojun Liu

发明人： Kai Wang ,  Hu Chen ,  Guojun Liu

IPC分类号： H04R1/04 ,  H04R29/00 ,  B81B7/00 ,  H04R19/04

CPC分类号： H04R1/04 ,  B81B7/0087 ,  B81B2201/0257 ,  B81B2207/012 ,  H04R19/005 ,  H04R19/04 ,  H04R29/004 ,  H04R2201/003

摘要： A MEMS microphone is disclosed. The MEMS microphone includes an encapsulation structure provided with an accommodation space; a MEMS chip for detecting sound signal accommodated in the accommodation space; an ASIC chip received in the accommodation space. The ASIC chip includes a signal processing module connected to MEMS chip for processing the sound signal detected by the MEMS chip and outputting the processed sound signal. The MEMS microphone further includes a temperature detection module for detecting temperature signal and outputting the temperature signal.

公开(公告)号：US20170336275A1

公开(公告)日：2017-11-23

申请号：US15416721

申请日：2017-01-26

申请人： Kai Wang ,  Hu Chen ,  Guojun Liu

发明人： Kai Wang ,  Hu Chen ,  Guojun Liu

IPC分类号： G01L1/26 ,  G01K13/00

CPC分类号： G01L1/26 ,  G01K13/00 ,  G01L19/0092

摘要： A pressure transducer is disclosed. The pressure transducer includes an encapsulation structure provided with an accommodation space; a MEMS chip for detecting pressure signal accommodated in the accommodation space; an ASIC chip received in the accommodation space. The ASIC chip includes a signal processing module connected to MEMS chip for processing the pressure signal detected by the MEMS chip and outputting the processed pressure signal. The pressure transducer further includes a temperature detection module for detecting temperature signal and outputting the temperature signal.

公开(公告)号：US09614364B2

公开(公告)日：2017-04-04

申请号：US13885686

申请日：2011-10-31

申请人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

发明人： Biyao Huang ,  Jianqi Li ,  Guojun Liu ,  Zhihui Wang ,  Nan Quan ,  Xiaofeng Qu ,  Tao Zhao ,  Licheng Wang

IPC分类号： H02J3/08 ,  H02H3/38 ,  H02H1/00 ,  H02H7/28 ,  H02J3/38 ,  H02J13/00

CPC分类号： H02H3/38 ,  H02H1/0061 ,  H02H7/28 ,  H02J3/38 ,  H02J13/0051 ,  H02J2003/388 ,  Y02B90/263 ,  Y02E40/72 ,  Y02E60/723 ,  Y02E60/725 ,  Y02E60/783 ,  Y02P80/14 ,  Y04S10/12 ,  Y04S10/16 ,  Y04S10/20 ,  Y04S40/123

摘要： A detection system of distributed generation islanding based on power frequency carrier, the detection system comprising: a power frequency carrier signal generating device; a power frequency carrier signal detection device; a signal coupling transformer; a substation bus; a distribution power generator (DG); and a safety isolation breaker, wherein the power frequency carrier signal generating device comprises a voltage and current monitor circuit, the power frequency carrier signal generating device is connected with the signal coupling transformer through four three phase four line power cables, and the signal coupling transformer is connected with substation bus through 3 power cables.

公开(公告)号：US08983107B2

公开(公告)日：2015-03-17

申请号：US13771138

申请日：2013-02-20

申请人： Guojun Liu

发明人： Guojun Liu

IPC分类号： H04R9/08 ,  H04R11/04 ,  H04R25/00 ,  G01L9/00 ,  H04R19/00 ,  H04R1/02 ,  H04R1/04 ,  B81B7/00 ,  H04R19/04 ,  H04R1/08 ,  B81B3/00

CPC分类号： H04R19/005 ,  B81B3/0027 ,  B81B7/0032 ,  B81B2201/0257 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/15151 ,  H01L2924/16152 ,  H04R1/02 ,  H04R1/04 ,  H04R1/083 ,  H04R19/04 ,  H01L2924/00014

摘要： A silicon based capacitive microphone includes a printed circuit board, a shell mounted on the printed circuit board and forming a receiving space together with the printed board, a chamber support located on top of the printed circuit board and received in the receiving space, a transducer unit and a controlling chip respectively mounted on the chamber support, wherein the chamber support forms a first chamber together with the printed board, the chamber support includes an opening, the transducer unit is provided with a second chamber and covers the opening, the second chamber communicates with the first chamber via the opening.

摘要翻译： 基于硅的电容式麦克风包括印刷电路板，安装在印刷电路板上的壳体以及与印刷电路板一起形成容纳空间，位于印刷电路板顶部并容纳在接收空间中的腔室支架，换能器 单元和分别安装在所述室支撑件上的控制芯片，其中所述室支撑件与所述印刷板一起形成第一室，所述室支撑件包括开口，所述换能器单元设置有第二室并且覆盖所述开口，所述第二室 通过开口与第一室连通。

公开(公告)号：US08895962B2

公开(公告)日：2014-11-25

申请号：US13070286

申请日：2011-03-23

申请人： Shivkumar Chiruvolu ,  Igor Altman ,  Bernard M. Frey ,  Weidong Li ,  Guojun Liu ,  Robert B. Lynch ,  Gina Elizabeth Pengra-Leung ,  Uma Srinivasan

发明人： Shivkumar Chiruvolu ,  Igor Altman ,  Bernard M. Frey ,  Weidong Li ,  Guojun Liu ,  Robert B. Lynch ,  Gina Elizabeth Pengra-Leung ,  Uma Srinivasan

IPC分类号： H01L51/40 ,  C09D7/12 ,  C09D5/24 ,  H01L21/02 ,  C09D7/14 ,  B82Y30/00 ,  C09D11/52 ,  C09D11/101 ,  B01J19/12 ,  H01L31/00 ,  C08K3/08 ,  C08K3/36 ,  C08K9/02

CPC分类号： C09D11/38 ,  B01D21/262 ,  B01J19/121 ,  B01J2219/0869 ,  B01J2219/0871 ,  B01J2219/0875 ,  B82Y30/00 ,  C01B33/02 ,  C08K3/08 ,  C08K3/36 ,  C08K9/02 ,  C09D5/24 ,  C09D7/67 ,  C09D7/68 ,  C09D7/80 ,  C09D11/037 ,  C09D11/101 ,  C09D11/322 ,  C09D11/36 ,  C09D11/52 ,  H01L21/02532 ,  H01L21/02573 ,  H01L21/02579 ,  H01L21/02581 ,  H01L21/02601 ,  H01L21/02628 ,  H01L23/4828 ,  H01L23/53276 ,  H01L31/00 ,  H01L31/02363 ,  H01L31/03682 ,  H01L31/03762 ,  H01L31/0747 ,  H01L31/182 ,  H01L31/1864 ,  H01L2924/0002 ,  Y02E10/52 ,  Y02E10/546 ,  Y02E10/548 ,  Y02P70/521 ,  H01L2924/00

摘要： Laser pyrolysis reactor designs and corresponding reactant inlet nozzles are described to provide desirable particle quenching that is particularly suitable for the synthesis of elemental silicon particles. In particular, the nozzles can have a design to encourage nucleation and quenching with inert gas based on a significant flow of inert gas surrounding the reactant precursor flow and with a large inert entrainment flow effectively surrounding the reactant precursor and quench gas flows. Improved silicon nanoparticle inks are described that has silicon nanoparticles without any surface modification with organic compounds. The silicon ink properties can be engineered for particular printing applications, such as inkjet printing, gravure printing or screen printing. Appropriate processing methods are described to provide flexibility for ink designs without surface modifying the silicon nanoparticles.

摘要翻译： 描述了激光热解反应器设计和相应的反应物入口喷嘴，以提供特别适合于合成元素硅颗粒的理想的颗粒淬火。 特别地，喷嘴可以具有鼓励成形和淬火的设计，其基于围绕反应物前体流的大量惰性气体，并且具有有效围绕反应物前体和骤冷气体流的大的惰性夹带流动的惰性气体。 描述了改进的硅纳米颗粒油墨，其具有不含有机化合物的任何表面改性的硅纳米颗粒。 硅油墨性能可以针对特定的印刷应用进行设计，例如喷墨印刷，凹版印刷或丝网印刷。 描述适当的处理方法以提供油墨设计的灵活性，而无需对硅纳米颗粒进行表面改性。

公开(公告)号：US20130330920A1

公开(公告)日：2013-12-12

申请号：US13490059

申请日：2012-06-06

申请人： Guojun Liu ,  Xianmin Tang ,  Anantha Subramani ,  Wei W. Wang

发明人： Guojun Liu ,  Xianmin Tang ,  Anantha Subramani ,  Wei W. Wang

IPC分类号： H01L21/283

CPC分类号： H01L21/76814 ,  H01L21/02063

摘要： A high-frequency, hydrogen-based radio-frequency (RF) plasma is used to reduce a metal oxide and other contaminant disposed in an aperture that is formed in an ultra-low k dielectric material. Because the frequency of the plasma is at least about 40 MHz and the primary gas in the plasma is hydrogen, metal oxide can be advantageously removed without damaging the dielectric material.

摘要翻译： 使用高频，氢基射频（RF）等离子体来减少设置在形成于超低k电介质材料的孔中的金属氧化物和其它污染物。 由于等离子体的频率为至少约40MHz，等离子体中的初级气体为氢，所以可以有利地除去金属氧化物而不损坏电介质材料。

公开(公告)号：US20120296029A1

公开(公告)日：2012-11-22

申请号：US13461404

申请日：2012-05-01

申请人： Guojun Liu ,  Dean Xiong

发明人： Guojun Liu ,  Dean Xiong

IPC分类号： C09D133/12 ,  C09D133/16 ,  B82Y30/00

CPC分类号： C08F293/005 ,  C01B33/18 ,  C08F8/20 ,  C08F265/06 ,  C08F297/02 ,  C08J3/12 ,  C09D5/1687 ,  C09D7/65 ,  C08F220/28 ,  C08F220/18 ,  C08F222/1006

摘要： Fluorine-containing multifunctional microspheres and applications thereof are provided. There are provided multifunctional microspheres comprising polymer chains having a first portion and a second portion, wherein the first portion is anchored to the surface of the multifunctional microsphere via grafting, crosslinking or a combination thereof, and the second portion comprises at least one fluorinated group and at least one reactive functional group capable of forming a covalent bond with an adhesive, and uses thereof to prepare amphiphobic coatings on material surfaces. Also provided are multifunctional microspheres comprising two or more different types of such polymer chains, wherein the relative proportions of the different polymer chains may be tuned during preparation of the multifunctional microspheres.

摘要翻译： 提供含氟多功能微球及其应用。 提供了包含具有第一部分和第二部分的聚合物链的多功能微球，其中第一部分通过接枝，交联或其组合锚定到多官能微球的表面，第二部分包含至少一个氟化基团和 至少一个能够与粘合剂形成共价键的反应性官能团，以及其用于在材料表面上制备两性涂层的用途。 还提供了包含两种或更多种不同类型的这种聚合物链的多功能微球，其中可以在制备多功能微球期间调节不同聚合物链的相对比例。

公开(公告)号：US06237397B1

公开(公告)日：2001-05-29

申请号：US09413628

申请日：1999-10-06

申请人： Ruth Shinar ,  Guojun Liu ,  Marc D. Porter

发明人： Ruth Shinar ,  Guojun Liu ,  Marc D. Porter

IPC分类号： G01N2902

CPC分类号： G01N29/022 ,  G01N2291/014 ,  G01N2291/0256 ,  G01N2291/02863 ,  G01N2291/0423 ,  G01N2291/0426 ,  G01N2291/0427

摘要： An acoustic wave based-chemical sensor containing a crystal substrate and a coating of small particulate matter is disclosed. The small particulate matter can be graphite particles. Transducers are connected to the crystal substrate to generate an alternating potential across the crystal substrate, which in turn causes the crystal to resonate due to the converse piezoelectric effect. The coating absorbs the analyte, thus changing the mass of the sensor, and accordingly changing its resonant frequency. The transducers detect this change in resonant frequency to indicate that the analyte is present. The use of small particulate matter results in a coating having a large surface area which facilitates mass uptake of large amounts of VOCs, improved acoustic properties even with relatively thick coatings, and a high operational temperature range.

摘要翻译： 公开了一种包含晶体衬底和小颗粒物质涂层的基于声波的化学传感器。 小颗粒物可以是石墨颗粒。 传感器连接到晶体衬底以在晶体衬底之间产生交替电位，这又导致晶体由于相反的压电效应而谐振。 涂层吸收分析物，从而改变传感器的质量，从而改变其共振频率。 传感器检测谐振频率的这种变化，以表明分析物存在。 使用小的颗粒物质可形成具有大表面积的涂层，其有利于大量挥发性有机物的吸收，甚至在相对较厚的涂层和较高的操作温度范围内也改善了声学性能。

公开(公告)号：US09699538B2

公开(公告)日：2017-07-04

申请号：US14832735

申请日：2015-08-21

申请人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

发明人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

IPC分类号： H04R1/08 ,  H04R1/04

CPC分类号： H04R1/04 ,  H01L2924/15151 ,  H01L2924/16152 ,  H04R2201/003

摘要： A micro-electro-mechanical system (MEMS) microphone device is provided in the present disclosure. The MEMS microphone device includes a circuit board, an electromagnetic shielding cover mounted on the circuit board to define an accommodating space, electronic components received in the accommodating space and electrically connected to the circuit board, and a metal shielding member disposed between the electronic components and the electromagnetic shielding cover. The electromagnetic shielding cover has an inner surface and an outer surface; and at least one of the inner surface and the outer surface is provided with a first metal shielding layer. At least one of the electromagnetic shielding cover and the metal shielding member is electrically connected to the circuit board.

公开(公告)号：US09510109B2

公开(公告)日：2016-11-29

申请号：US14832590

申请日：2015-08-21

申请人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

发明人： Guojun Liu ,  Peng Zeng ,  Zhijiang Wu

IPC分类号： H04R25/00 ,  H04R19/04

CPC分类号： H04R19/04 ,  H04R2201/003 ,  H04R2225/49

摘要： A micro-electro-mechanical system (MEMS) microphone device is provided in the present disclosure. The MEMS microphone device includes a first electromagnetic shielding cover defining a first accommodating space; a second electromagnetic shielding cover received in the first accommodating space and defining a second accommodating space; a MEMS chip and an application specific integrated circuit (ASIC) chip received in the second accommodating space. The first electromagnetic shielding cover and the second electromagnetic shielding cover cooperatively provide dual electromagnetic shielding protection for the MEMS chip and the ASIC chip.

摘要翻译： 在本公开中提供了微机电系统（MEMS）麦克风装置。 MEMS麦克风装置包括限定第一容纳空间的第一电磁屏蔽罩; 第二电磁屏蔽盖，容纳在所述第一容纳空间中并限定第二容纳空间; MEMS芯片和专用集成电路（ASIC）芯片接收在第二容纳空间中。 第一电磁屏蔽罩和第二电磁屏蔽罩协同提供MEMS芯片和ASIC芯片的双电磁屏蔽保护。