公开(公告)号：US20210179866A1

公开(公告)日：2021-06-17

申请号：US17182814

申请日：2021-02-23

Applicant: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Guoyun ZHOU ,  Yan HONG ,  Jiujuan Li ,  Wei HE ,  Yuanming CHEN ,  Shouxu WANG ,  Dainan ZHANG ,  Chong WANG

IPC: C09D5/24 ,  C09D165/00 ,  C25D3/38 ,  C25D21/10 ,  C25D5/56

Abstract: A composite conductive polymer, a preparation method thereof and application thereof are disclosed, wherein a mixed solution A is used in the preparation process of the composite conductive polymer, which comprises the following two components: (i) a strong oxidant selected from at least one of permanganate, persulfate, dichromate and perchlorate; (ii) an oxidizing agent containing a metal ion capable of being reduced to elementary substance. The preparation process is simple and easy to operate, with low cost and favorable environmental protection and the obtained composite conductive polymer containing metal in elementary form, has good film-forming property and the film thereof can completely cover the surface of the insulating substrate, with excellent electrical conductivity, which therefore can be widely used in electroplating materials and semiconductor materials and other fields.

公开(公告)号：US20210134558A1

公开(公告)日：2021-05-06

申请号：US17086494

申请日：2020-11-02

Applicant: University of Electronic Science and Technology of China

Inventor： Hailong LI ,  Tongkun ZOU ,  Maoyan WANG ,  Yong YIN ,  Bin WANG ,  Lin MENG ,  Ping ZHANG ,  Xuesong YUAN ,  Huanhuan LU

IPC: H01J37/244

Abstract: A device for measuring the emission angle of a particle beam. The device includes a shell, a data acquisition board, a data collector, a data processor and a data synchronization display. The shell is hollow tubular. The data acquisition board is fixed to the front end of the shell. The data collector and the data processor are fixed together and fixed to the back end of the shell. The data collected by the data acquisition board is transmitted to the data collector through the data line collector, and the data processor transmits the processed data to the data synchronization display. The ion accelerator to be measured is located in front of the data acquisition board, and the particles emitted by the ion accelerator bombard the front of the data acquisition board. The data acquisition board comprises an insulating ring, an array insulating board and a pressure sensor.

公开(公告)号：US20210099315A1

公开(公告)日：2021-04-01

申请号：US17032041

申请日：2020-09-25

Applicant: University of Electronic Science and Technology of China

Inventor： Chunxiang XU ,  Chuang LI ,  Yuan ZHANG

IPC: H04L9/32

Abstract: A method for blockchain-based time stamping for digital signature is disclosed. The method includes two participants: a signer who signs a message, a verifier who verifies the message. In the method, the signer obtains hash values of a certain number of latest confirmed blocks in blockchain, binds these hash values and the message together to be a new message. The signer then generates a signature of the new message and inserts identification data of this signature and the new message into a transaction of blockchain. This method ensures that the generation time of the signature is prior to the generation time of the block which contains the signature and, at the same time, is after the generation time of the blocks whose hash values are included in the signature, which produces an accurate time interval for the digital signature.

公开(公告)号：US20210089718A1

公开(公告)日：2021-03-25

申请号：US17024726

申请日：2020-09-18

Applicant: University of Electronic Science and Technology of China

Inventor： Jianping LI ,  Xiaofeng GU ,  Jian HU ,  Ruinan SUN ,  Wenting FENG ,  Shunli LI ,  Sheng JIANG

IPC: G06F40/289 ,  G06F17/16 ,  G06F40/30 ,  G06K9/62 ,  G06F40/216

Abstract: A method for machine reading comprehension includes: S1, obtaining a character-level indication vector of a question and a character-level indication vector of an article; S2, obtaining an encoded question vector and an encoded article vector; S3, obtaining an output P1 of a bidirectional attention model and an output P2 of a shared attention model; S4, obtaining an aggregated vector P3; S5, obtaining a text encoding vector P4; S6, obtaining global interaction information between words within the article; S7, obtaining a text vector P5 after using the self-attention model; S8, obtaining aggregated data P6 according to the text encoding vector P4 and the text vector P5; S9, obtaining a context vector of the article according to the aggregated data P6 and an unencoded article vector P; and S10, predicting an answer position according to the context vector of the article and the encoded question vector to complete the machine reading comprehension.

公开(公告)号：US20210074699A1

公开(公告)日：2021-03-11

申请号：US16839089

申请日：2020-04-03

Applicant: University of Electronic Science and Technology of China

Inventor： Ming QIAO ,  Linrong HE ,  Yi LI ,  Chunlan LAI ,  Bo Zhang

IPC: H01L27/06 ,  H01L21/762 ,  H01L21/8238 ,  H01L29/06 ,  H01L29/78 ,  H01L29/739

Abstract: An integrated power semiconductor device, includes devices integrated on a single chip. The devices include a vertical high voltage device, a first high voltage pLDMOS device, a high voltage nLDMOS device, a second high voltage pLDMOS device, a low voltage NMOS device, a low voltage PMOS device, a low voltage NPN device, and a low voltage diode device. A dielectric isolation is applied to the first high voltage pLDMOS device, the high voltage nLDMOS device, the second high voltage pLDMOS device, the low voltage NMOS device, the low voltage PMOS device, the low voltage NPN device, and the low voltage diode device. A multi-channel design is applied to the first high voltage pLDMOS device, and the high voltage nLDMOS device. A single channel design is applied to the second high voltage pLDMOS device.

公开(公告)号：US10923583B2

公开(公告)日：2021-02-16

申请号：US16601609

申请日：2019-10-15

Applicant: University of Electronic Science and Technology of China

Inventor： Zehong Li ,  Xin Peng ,  Yishang Zhao ,  Min Ren ,  Bo Zhang

IPC: H01L29/78 ,  H01L29/739 ,  H01L29/10 ,  H01L29/423

Abstract: The present invention relates to the technical field of power semiconductor devices, particularly to an insulated gate bipolar transistor with a MOS controllable hole path. According to the present invention, a MOS controllable gate structure formed by a gate dielectric layer, a MOS control gate electrode and a P-type MOS channel region are embedded in a P+ floating p-body region of the conventional IGBT structure. The MOS region is equivalent to a switch controlled by a gate voltage. When the device is turned on under a forward voltage, the potential of the p-body region is floated to store holes, reducing the saturation conduction voltage drop of the device. Under the condition of turn-off and short-circuit, the hole extracting path is provided and the Miller capacitance is lowered, thereby lowering the turn-off losses and enhancing the short-circuit withstand capability.

公开(公告)号：US20210041762A1

公开(公告)日：2021-02-11

申请号：US16988648

申请日：2020-08-08

Applicant: University of Electronic Science and Technology of China

Inventor： Mao Ye ,  Xiaoxi Chen ,  Guangyong Li ,  Yalei Zhang

IPC: G02F1/29

Abstract: An optical device includes a first electrode layer, a first alignment layer, a liquid crystal layer, a second alignment layer, and a second electrode layer being arranged in turn along a light transmission direction; wherein the first electrode layer comprises a first electrode, a second electrode, and a first impedance membrane arranged between the first electrode and the second electrode, and the first electrode and the second electrode are respectively arranged on opposite ends of the first impedance membrane; the second electrode layer has a structure similar to that of the first electrode layer. The four electrodes form a light transmission hole being shaped as a parallelogram. The present invention solves the problem that the focal length of the liquid crystal lens cannot be accurately adjusted due to the instability of the impedance of the impedance membrane of the present liquid crystal lens.

公开(公告)号：US10885604B2

公开(公告)日：2021-01-05

申请号：US16435465

申请日：2019-06-08

Applicant: University of Electronic Science and Technology of China

Inventor： Wuhuang Huang ,  Pan Wang ,  Jun Jiang ,  Peng Ye ,  Kuojun Yang ,  Lianping Guo ,  Hao Zeng ,  Shuo Wang ,  Jian Gao

IPC: G01R13/02 ,  G01R13/40 ,  G06T11/20 ,  G06T1/60 ,  G06F16/22 ,  G06F3/06

Abstract: The present invention provides a method for 3D waveform mapping of full-parallel structure, first, a 3D waveform mapping database is created according to the size of a 3D waveform image, the number of bits of probability value and the ADC's resolution of data acquisition module, then the 3D waveform mapping database is divided into Mt×Ma independent mapping storage areas along the time axis and the amplitude axis, and each independent mapping storage area is assigned a RAM, then RAMs are selected and addresses are calculated based on the sampling values and the structure of created 3D waveform mapping database, finally, parallel mappings are performed simultaneously on the time axis and the amplitude axis according to the selected RAMs and calculated addresses. Thus, the mapping time are shorten, especially in vector mapping mode, several RAMs are used for mapping, so the WCR of DSO is improved.

公开(公告)号：US20200381705A1

公开(公告)日：2020-12-03

申请号：US16955064

申请日：2019-09-20

Applicant: University of Electronic Science and Technology of China

Inventor： Jingze LI ,  Weishang JIA ,  Zeyu YAO ,  Yuchi LIU ,  Siji QU ,  Chao LI

IPC: H01M4/04 ,  H01M4/38 ,  H01M10/0525 ,  C22C1/02

Abstract: A method for preparing a lithium alloy as an anode material includes the following steps: heating lithium metal into a molten state in an environment with a dew point not higher than −50° C. and an oxygen content not higher than 10 ppm; adding a transition metal to the molten lithium metal, maintaining the temperature for 5-15 minutes, and uniformly mixing to form a molten alloy; cooling the molten alloy to room temperature to obtain the lithium alloy as the anode material. The preparation method of the present invention is simple and feasible with less cost. The prepared lithium alloy as the anode material can effectively improve the coulombic efficiency and cycle lifespan of the lithium battery.

公开(公告)号：US20200235254A1

公开(公告)日：2020-07-23

申请号：US16486109

申请日：2018-02-16

Applicant: INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Yufeng ZHOU ,  Daniele BENETTI ,  Xin TONG ,  Lei JIN ,  Zhiming M. WANG ,  Dongling MA ,  Haiguang ZHAO ,  Federico ROSEI

IPC: H01L31/055 ,  C09K11/65 ,  C09K11/02 ,  C08L29/04 ,  C08L33/10 ,  C08L39/06

Abstract: A luminescent solar concentrator (LSC) comprising a metal-free emitter. The emitter may for example be carbon-based. In particular, the emitter may comprise colloidal carbon quantum dots, also called C-dots or C-QDs or C-dots. In embodiments of the invention, the surface of the C-dots is modified.