公开(公告)号：US06998357B2

公开(公告)日：2006-02-14

申请号：US10646034

申请日：2003-08-22

Applicant: Gang Bai ,  David B. Fraser ,  Brian S. Doyle ,  Peng Cheng ,  Chunlin Liang

Inventor： Gang Bai ,  David B. Fraser ,  Brian S. Doyle ,  Peng Cheng ,  Chunlin Liang

IPC: H01L21/469

CPC classification number: H01L29/513 ,  H01L21/28185 ,  H01L21/28194 ,  H01L21/28211 ,  H01L21/28229 ,  H01L29/517

Abstract: A method of forming a dielectric layer suitable for use as the gate dielectric layer of a metal-oxide-semiconductor field effect transistor (MOSFET) includes oxidizing the surface of a silicon substrate, forming a metal layer over the oxidized surface, and reacting the metal with the oxidized surface to form a substantially intrinsic layer of silicon superjacent the substrate, wherein at least a portion of the silicon layer may be an epitaxial silicon layer, and a metal oxide layer superjacent the silicon layer. In a further aspect of the present invention, an integrated circuit includes a plurality of MOSFETs, wherein various ones of the plurality of transistors have metal oxide gate dielectric layers and substantially intrinsic silicon layers subjacent the metal oxide dielectric layers.

公开(公告)号：US06650204B2

公开(公告)日：2003-11-18

申请号：US10307053

申请日：2002-11-27

Applicant: Qing Ma ,  Peng Cheng ,  Valluri Rao

Inventor： Qing Ma ,  Peng Cheng ,  Valluri Rao

IPC: H03H924

CPC classification number: H03H3/0077 ,  H03H9/2463 ,  Y10S977/70 ,  Y10S977/721 ,  Y10S977/733 ,  Y10S977/888 ,  Y10S977/889

Abstract: A method including to a resonator coupled to at least one support structure on a substrate, the resonator having a resonating frequency in response to a frequency stimulus, modifying the resonating frequency by modifying the at least one support structure. A method including forming a resonator coupled to at least one support structure on a chip-level substrate, the resonator having a resonating frequency; and modifying the resonating frequency of the resonator by modifying the at least one support structure. A method including applying a frequency stimulus to a resonator coupled to at least one support structure on a chip-level substrate determining a resonating frequency; and modifying the resonating frequency of the resonator by modifying the at least one support structure. An apparatus including a resonator coupled to at least one support structure on a chip-level substrate, the resonator having a resonating frequency tuned by the modification of the at least one support structure to a selected frequency stimulus.

公开(公告)号：US06573822B2

公开(公告)日：2003-06-03

申请号：US09884738

申请日：2001-06-18

Applicant: Qing Ma ,  Peng Cheng ,  Valluri Rao

Inventor： Qing Ma ,  Peng Cheng ,  Valluri Rao

IPC: H01F500

CPC classification number: H01F5/003 ,  H01F17/0006 ,  H01F21/12 ,  H01H59/0009 ,  H01L24/19 ,  H01L2924/12042 ,  H01L2924/14 ,  H01L2924/00

Abstract: A tunable inductor is disclosed. The tunable inductor comprises a helical or spiral inductor formed on a semiconductor substrate having an input and an output. The helical inductor has a full length that provides a full inductance. Also, a full inductance switch is disposed between the output and the full length of the helical inductor. Finally, at least one microelectromechanical (MEMS) switch is disposed between the output and an intermediate location of the helical inductor.

Abstract translation: 公开了一种可调电感器。 可调电感器包括形成在具有输入和输出的半导体衬底上的螺旋或螺旋形电感器。 螺旋电感器具有提供全电感的全长。 此外，全电感开关设置在螺旋电感器的输出端和全长之间。 最后，至少一个微机电（MEMS）开关设置在螺旋电感器的输出端和中间位置之间。

公开(公告)号：US06479921B2

公开(公告)日：2002-11-12

申请号：US10046128

申请日：2002-01-09

Applicant: Qing Ma ,  Peng Cheng

Inventor： Qing Ma ,  Peng Cheng

IPC: H02N100

CPC classification number: H03H3/0077 ,  B81B3/007 ,  G11B5/484 ,  G11B21/16 ,  H03H9/24 ,  H03H9/2463 ,  H03H2009/0233

Abstract: The invention relates to a hollow microbeam that is fabricated upon a base or pedestal. Processing of the hollow microbeam includes forming at least one hollow channel in the microbeam by removing temporary fillers after formation of the microbeam. The inventive microbeam may provide at least an order of magnitude increase in oscillational frequency over a solid microbeam.

Abstract translation: 本发明涉及一种制造在基座或基座上的中空微波束。 中空微束的加工包括通过在形成微束之后去除临时填料而在微束中形成至少一个中空通道。 本发明的微束可以在固体微束上提供振荡频率至少一个数量级的增加。

公开(公告)号：US06445106B1

公开(公告)日：2002-09-03

申请号：US09507228

申请日：2000-02-18

Applicant: Qing Ma ,  Peng Cheng

Inventor： Qing Ma ,  Peng Cheng

IPC: G11B900

CPC classification number: H03H3/0077 ,  B81B3/007 ,  G11B5/484 ,  G11B21/16 ,  H03H9/24 ,  H03H9/2463 ,  H03H2009/0233

Abstract: The invention relates to a hollow microbeam that is fabricated upon a base or pedestal. Processing of the hollow microbeam includes forming at least one hollow channel in the microbeam by removing temporary fillers after formation of the microbeam. The inventive microbeam may provide at least an order of magnitude increase in oscillational frequency over a solid microbeam.

公开(公告)号：US06355534B1

公开(公告)日：2002-03-12

申请号：US09491560

申请日：2000-01-26

Applicant: Peng Cheng ,  Qing Ma

Inventor： Peng Cheng ,  Qing Ma

IPC: H01L2120

CPC classification number: H01G5/16 ,  Y10T29/435

Abstract: The invention relates to a variable capacitor and method of making it. The variable capacitor comprises a fixed charge plate disposed in a substrate, a movable charge plate disposed above the fixed charge plate, and a stiffener affixed to the movable charge plate. The movable charge plate may be patterned to form a movable actuator plate where the fixed charge plate is elevated above a fixed actuator plate.

Abstract translation: 本发明涉及一种可变电容器及其制造方法。 可变电容器包括设置在基板中的固定充电板，设置在固定充电板上方的可移动充电板和固定到可移动充电板的加强件。 可移动充电板可以被图案化以形成可动致动器板，其中固定的充电板在固定的致动器板上方升高。

公开(公告)号：US5891805A

公开(公告)日：1999-04-06

申请号：US766330

申请日：1996-12-13

Applicant: Peng Cheng ,  Brian S. Doyle

Inventor： Peng Cheng ,  Brian S. Doyle

IPC: H01L21/033 ,  H01L21/768 ,  H01L21/302

CPC classification number: H01L21/76885 ,  H01L21/0337

Abstract: A method of forming a contact is disclosed. A substrate having a desired electrical contact location is provided. The substrate has a conductive layer. A first mask with an edge over the desired electrical contact location is formed on the substrate. A contact material is deposited over the first mask and the substrate. A first portion of the contact material is then removed such that a second portion of the contact material remains to form a contact adjacent to the edge of the mask, over the desired electrical contact location.

Abstract translation: 公开了形成接触的方法。 提供具有所需电接触位置的基板。 基板具有导电层。 在衬底上形成具有在所需电接触位置上的边缘的第一掩模。 接触材料沉积在第一掩模和基底上。 然后去除接触材料的第一部分，使得接触材料的第二部分保留以在所需的电接触位置上形成邻近掩模边缘的接触。

公开(公告)号：US20200015136A1

公开(公告)日：2020-01-09

申请号：US16490699

申请日：2017-04-05

Applicant: Aleksandar DAMNJANOVIC ,  Keiichi KUBOTA ,  Linhai HE ,  Gavin Bernard HORN ,  Peng CHENG ,  Qualcomm Incorporated

Inventor： Aleksandar Damnjanovic ,  Keiichi Kubota ,  Linhai He ,  Gavin Bernard Horn ,  Peng Cheng

IPC: H04W36/10 ,  H04W36/00 ,  H04W36/30 ,  H04W36/36

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may autonomously initiate a handover procedure and select a target base station for the handover procedure. The UE may measure a signal from the source base station or the target base station, or both, and the UE may determine whether specific criteria at both base stations are within a pre-configured range. If the criteria at both base stations are within the pre-configured range, the UE may identify the target base station as a potential candidate for a handover. Accordingly, when the UE determines that radio conditions with the source base station are deteriorating (or fall below a threshold), the UE may initiate a handover to the target base station autonomously and without specific direction from the source base station.

公开(公告)号：US10052730B2

公开(公告)日：2018-08-21

申请号：US15563328

申请日：2016-03-31

Applicant: Peng Cheng ,  Bengt Oelmann ,  Stefan Haller

Inventor： Peng Cheng ,  Bengt Oelmann ,  Stefan Haller

IPC: H02K23/04 ,  B23Q5/16 ,  H02K29/06 ,  H02K29/14 ,  H02P7/28 ,  H02K21/28 ,  H02K29/03

CPC classification number: B23Q5/16 ,  H02K21/28 ,  H02K29/00 ,  H02K29/03 ,  H02K29/06 ,  H02K29/14 ,  H02P7/28

Abstract: A variable-speed direct current motor comprising a stator (22), a rotor (23) arranged within the stator, and a motor drive device (40) arranged partly at the stator and partly at the rotor, wherein the stator comprises a yoke (25) defining a cylindrical cavity (31), and a plurality of permanent magnets (24) arranged at the yoke, wherein the rotor comprises a cylindrical core (26) and a conductor structure (47) arranged at the core, wherein the motor drive device comprises an alternating current transformer (41) having a primary winding (42) arranged at the stator and a secondary winding (43) arranged at the rotor, a rectifier device (44) arranged at the rotor and connected with the secondary winding, a direct current supply device (45) arranged at the rotor (23) and connected with the rectifier device (44), and with the conductor structure (47), and an operation control device (48) comprising a first unit (49) arranged at the rotor (23) and a second unit (50) arranged externally of the rotor and wirelessly communicating with the first unit.

公开(公告)号：US20160173180A1

公开(公告)日：2016-06-16

申请号：US14889108

申请日：2014-06-12

Applicant: Peng CHENG ,  Chao WEI ,  Neng WANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

Inventor： Peng Cheng ,  Chao Wei ,  Neng Wang ,  Jilei Hou

IPC: H04B7/04 ,  H04L27/26

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04L27/2628

Abstract: The present disclosure relates to systems and methods for a two-dimensional discrete Fourier transform based codebook for elevation beamforming. A two-dimensional discrete Fourier transform based codebook is determined for elevation beamforming. The codebook supports single stream codewords and multistream codewords. The two-dimensional discrete Fourier transform based codebook is generated by stacking the columns of the matrix product of two discrete Fourier transform codebook matrices. The codebook size may be flexibly designed based on required beam resolution in azimuth and elevation. A best codebook index is selected from the generated two-dimensional discrete Fourier transform based codebook. The selected codebook index is provided in a channel state information report. The channel state information report is transmitted to a base station.

Abstract translation: 本公开涉及用于仰角波束成形的基于二维离散傅里叶变换的码本的系统和方法。 基于二维离散傅里叶变换的码本被确定为仰角波束成形。 码本支持单流码字和多码流码字。 基于二维离散傅里叶变换的码本通过堆叠两个离散付里叶变换码本矩阵的矩阵乘积的列来生成。 可以基于方位角和高程中所需的光束分辨率灵活地设计码本大小。 从生成的基于二维离散傅立叶变换的码本中选择最佳码本索引。 所选码本索引在信道状态信息报告中提供。 信道状态信息报告被发送到基站。