公开(公告)号：US20140175516A1

公开(公告)日：2014-06-26

申请号：US14133373

申请日：2013-12-18

Applicant: Stichting IMEC Nederland

Inventor： Roman Vitushinsky ,  Peter Offermans ,  Mercedes Crego Calama ,  Sywert Brongersma

IPC: G01N27/414 ,  H01L29/66 ,  H01L29/778

CPC classification number: G01N27/4141 ,  H01L29/66431 ,  H01L29/778

Abstract: The disclosed technology generally relates to a sensor and methods for making and using the same, and more particularly relates to a sensor configured to sense the presence of at least one fluidum. In one aspect, a sensor for sensing a fluidum in a space adjoining the sensor comprises a two-dimensional electron gas (2DEG) layer stack. The sensor additionally comprises a gate lying adjacent to at least part of the 2DEG layer stack and configured to electrostatically control the electron density of a two-dimensional electron gas (2DEG) in the 2DEG layer stack. The sensor further comprises a source electrode contacting the 2DEG layer stack for electrically contacting the 2DEG. The 2DEG layer stack of the sensor comprises a contact surface contacting the space and provided to contact molecules of the fluidum which is desired to be detected, and the gate of the sensor comprises a doped semiconductor bottom layer of the 2DEG layer stack in electrical contact with at least one gate electrode, where the doped semiconductor bottom layer being located at a side of the 2DEG layer stack opposing the contact surface.

Abstract translation: 所公开的技术通常涉及传感器及其制造和使用方法，更具体地涉及被配置为感测至少一个流体的存在的传感器。 在一个方面，用于感测与传感器邻接的空间中的流体的传感器包括二维电子气（2DEG）层堆叠。 该传感器还包括位于与2DEG层堆叠的至少一部分相邻并且被配置为静电地控制2DEG层堆叠中的二维电子气（2DEG）的电子密度的栅极。 传感器还包括与2DEG层堆叠接触的源电极，用于电接触2DEG。 该传感器的2DEG层叠层包括与该空间相接触的接触表面，并提供给与期望被检测的流体的分子接触，并且该传感器的栅极包括与2DEG层堆叠电子接触的掺杂半导体底层 至少一个栅电极，其中掺杂半导体底层位于与接触表面相对的2DEG层堆叠的一侧。

公开(公告)号：US20140071737A1

公开(公告)日：2014-03-13

申请号：US14015822

申请日：2013-08-30

Applicant: Katholieke Universiteit Leuven ,  Stichting IMEC Nederland

Inventor： Vibhu Sharma ,  Stefan Cosemans ,  Wim Dehaene ,  Francky Catthoor ,  Maryam Ashouei ,  Jos Huisken

IPC: G11C11/419

CPC classification number: G11C11/419 ,  G11C7/18 ,  G11C11/412

Abstract: A memory device having complementary global and local bit-lines, the complementary local bit-lines being connectable to the complementary global bit-lines by means of a local write receiver which is configured for creating a full voltage swing on the complementary local bit lines from a reduced voltage swing on the complementary global bit lines. The local write receiver comprises a connection mechanism for connecting the local to the global bit-lines and a pair of cross-coupled inverters directly connected to the complementary local bit lines for converting the reduced voltage swing to the full voltage swing on the complementary local bit lines.

Abstract translation: 具有互补的全局和局部位线的存储器件，所述互补局部位线可通过本地写入接收器连接到所述互补的全局位线，所述本地写入接收器经配置以在互补的局部位线上产生全电压摆幅， 在互补的全局位线上降低电压摆幅。 本地写接收器包括用于将本地连接到全局位线的连接机构和直接连接到互补局部位线的一对交叉耦合的反相器，用于将互补局部位上的降低的电压摆幅转换为全电压摆幅 线条。

公开(公告)号：US20140070972A1

公开(公告)日：2014-03-13

申请号：US14022351

申请日：2013-09-10

Applicant: IMEC ,  Katholieke Universiteit Leuven, K.U. LEUVEN R&D ,  Stichting IMEC Nederland

Inventor： Alonso Morgado ,  Serena Porrazzo ,  Francesco Cannillo

IPC: H03M3/00

CPC classification number: H03M3/32 ,  H03M3/426 ,  H03M3/452

Abstract: A circuit for digitizing a sum of a first input signal and a plurality of second input signals has a passive adder that sums the second input signals and outputs a summation signal and a multi-bit quantizer circuit. The quanitzer circuit compares the summation signal at a first comparator input with a signal at a second comparator input, which is derived from the first input signal and has an appropriate polarity so that the difference between the summation signal and the signal at the second comparator input is indicative of the sum of the first input signal and the plurality of second input signals. The comparator also produces a comparator output signal based on the sum of the first input signal and the plurality of second input signals. The quantizer circuit also has a control logic block for determining a multi-bit representation of the sum from the comparator output signal.

Abstract translation: 用于对第一输入信号和多个第二输入信号的和进行数字化的电路具有对第二输入信号求和并输出求和信号和多位量化器电路的无源加法器。 量化器电路将第一比较器输入端的求和信号与第二比较器输入端的信号进行比较，该第二比较器输入端从第一输入信号导出并具有适当的极性，使得求和信号与第二比较器输入端的信号之间的差值 表示第一输入信号和多个第二输入信号的和。 比较器还基于第一输入信号和多个第二输入信号的和产生比较器输出信号。 量化器电路还具有用于确定来自比较器输出信号的和的多位表示的控制逻辑块。

公开(公告)号：US20130111977A1

公开(公告)日：2013-05-09

申请号：US13666356

申请日：2012-11-01

Applicant: Stichting IMEC Nederland

Inventor： Peter Offermans ,  Roman Vitushinsky ,  Mercedes Crego Calama ,  Sywert Brongersma

IPC: H01L29/66 ,  G01N7/00 ,  H01L29/205

CPC classification number: G01N27/128 ,  G01N27/129 ,  G01N33/0009 ,  G01N33/0027

Abstract: The application describes methods and apparatus for chemical sensing, e.g. gas sensing, which have high sensitivity but low power operation. A sensor is described having a flexible membrane comprising a III/N heterojunction structure configured so as to form a two dimensional electron gas within said structure. A sensing material is disposed on at least part of the flexible membrane, the sensing material being sensitive to one or more target chemicals so as to undergo a change in physical properties in the presence of said one or more target chemicals. The sensing material is coupled to said heterojunction structure such that said change in physical properties of the sensing material imparts a change in stress within the heterojunction structure which modulates the resistivity of the two dimensional electron gas.

Abstract translation: 本申请描述了用于化学感测的方法和装置，例如。 气敏，灵敏度高，功率低。 描述了具有柔性膜的传感器，该柔性膜包括III / N异质结结构，其被配置为在所述结构内形成二维电子气。 感测材料设置在柔性膜的至少一部分上，感测材料对一种或多种目标化学物质敏感，以便在所述一种或多种目标化学品的存在下经历物理性能的变化。 感测材料耦合到所述异质结结构，使得感测材料的物理性质的变化赋予了调制二维电子气体的电阻率的异质结结构内的应力变化。

公开(公告)号：US20250097203A1

公开(公告)日：2025-03-20

申请号：US18970204

申请日：2024-12-05

Applicant: Stichting IMEC Nederland ,  Katholieke Universiteit Leuven, KU LEUVEN R&D

Inventor： Mohieddine El Soussi ,  Abuding Aishajiang

IPC: H04L9/40

Abstract: A system is provided for performing secure key exchange between a plurality of nodes of a communication network. The system comprises a master node and at least two slave nodes. In this context, the master node is configured to authenticate the at least two slave nodes with a pair-wise authentication key corresponding to each pair of master node and slave nodes. The master node is further configured to generate a group authentication key common to the plurality of nodes. Furthermore, the master node is configured to encrypt the group authentication key with the pair-wise authentication key for each respective pair of master node and slave nodes, thereby generating a respective encrypted group authentication key. Moreover, the master node is configured to communicate the encrypted group authentication key to the respective slave nodes.

公开(公告)号：US20250023233A1

公开(公告)日：2025-01-16

申请号：US18897863

申请日：2024-09-26

Applicant: Stichting IMEC Nederland

Inventor： Huib Visser ,  Rainer Oliver Hornung ,  Johannes Frederik Dijkhuis

IPC: H01Q3/26

Abstract: A beam-steering antenna system for improving the angular coverage comprises a transmission line comprising a first end and a second end. The antenna system further comprises a plurality of antenna elements selectively coupled to the transmission line for selectively coupling energy within the transmission line to the plurality of antenna elements. Furthermore, the antenna system comprises a power amplifier coupled to the first end of the transmission line configured to couple-in an input signal into the transmission line during a first operating period. Moreover, the antenna system comprises a delay line coupled to the second end of the transmission line configured to reflect a portion of the input signal into the transmission line, thereby providing a reflection signal during a second operating period.

公开(公告)号：US12191575B2

公开(公告)日：2025-01-07

申请号：US17369692

申请日：2021-07-07

Applicant: Stichting IMEC Nederland

Inventor： Huib Visser ,  Rainer Oliver Hornung ,  Johannes Frederik Dijkhuis

IPC: H01Q3/26 ,  H01Q1/50 ,  H03F3/24

Abstract: A beam-steering antenna system for improving the angular coverage comprises a transmission line comprising a first end and a second end. The antenna system further comprises a plurality of antenna elements selectively coupled to the transmission line for selectively coupling energy within the transmission line to the plurality of antenna elements. Furthermore, the antenna system comprises a power amplifier coupled to the first end of the transmission line configured to couple-in an input signal into the transmission line during a first operating period. Moreover, the antenna system comprises a delay line coupled to the second end of the transmission line configured to reflect a portion of the input signal into the transmission line, thereby providing a reflection signal during a second operating period.

公开(公告)号：US12081170B2

公开(公告)日：2024-09-03

申请号：US17431251

申请日：2019-05-31

Applicant: Stichting IMEC Nederland

Inventor： Eric Antonius Maria Klumperink ,  Vijaya Kumar Purushothaman

IPC: H03D7/14 ,  H04B1/16

CPC classification number: H03D7/1441 ,  H04B1/16

Abstract: A radio frequency receiver comprising mixer circuitry to down-convert a received signal, which is transported on a signal line to baseband signal components, is provided. The mixer circuitry comprises a plurality of switched capacitors, each connected to the signal line through a signal side node and to a corresponding switch through a switch side node. In this context, a voltage is sensed at each switch side node of the plurality of switched capacitors and is read out through a respective grounded capacitor.

公开(公告)号：US20240280680A1

公开(公告)日：2024-08-22

申请号：US18442307

申请日：2024-02-15

Applicant: Stichting IMEC Nederland

Inventor： Alireza SHEIKH ,  Mohieddine EL SOUSSI

IPC: G01S13/12 ,  G01S13/76

CPC classification number: G01S13/12 ,  G01S13/76

Abstract: A method for determining a time duration for signal propagation between a first and a second radio signal transceiver comprises: receiving a set of measurement samples defining a time sequence representing a time duration related to propagation of a signal between the second and the first radio signal transceiver; determining a rough estimate of a time instance of a pulse peak value in the measurement samples; identifying a subset of the measurement samples around the rough estimate; inputting the subset to a fine peak estimation algorithm, wherein the subset is processed to reduce unknown phase offset; and performing fine peak estimation, wherein the fine peak estimation algorithm uses an estimation of a shape of a pulse peak for determining a fine estimate of the time instance based on a statistical relation between samples of the subset.

公开(公告)号：US12021557B2

公开(公告)日：2024-06-25

申请号：US18160474

申请日：2023-01-27

Applicant: Stichting IMEC Nederland

Inventor： Yao-Hong Liu ,  Minyoung Song

IPC: H04B1/7163 ,  H04B1/7176

CPC classification number: H04B1/7176

Abstract: A method of generating an impulse for impulse radio transmission signals and an impulse-radio ultra-wideband transmitter are provided. In one aspect, the method includes distributing input digital data according to time information data and amplitude information data along a first modulation path and a second modulation path, respectively. Pulse position modulation is performed based on the time information data along the first modulation path to define a timing position of the impulse. Pulse amplitude modulation is performed based on the amplitude information data along the second modulation path to define an envelope of the impulse. The input digital data can be distributed according to phase information data along a third modulation path, and phase shift keying modulation can be performed based on the phase information data along the third modulation path to define a phase of a carrier signal of the impulse.