公开(公告)号：US11114944B2

公开(公告)日：2021-09-07

申请号：US16707186

申请日：2019-12-09

Applicant: International Business Machines Corporation

Inventor： Xin Zhang ,  Todd E. Takken ,  Naigang Wang ,  Leland Chang

IPC: H02M3/158

Abstract: A multi-phase buck switching converter having grouped pairs of phases, each phase using two magnetically coupled air-core inductors. For each group, a first driver circuit controlling switching of a first power transistor switching circuit coupled to a first air-core inductor output for driving an output load at the first phase. A second driver circuit controlling switching of a second power transistor switching circuit coupled to a second air-core inductor output for driving said output load at the second phase. The first and second phases are spaced 180° apart. The coupled air-core inductors per group of such orientation, separation distance and mutual inductance polarity relative to each other such that magnetic coupling between the two or more inductors at each phase results in a net increase in effective inductance per unit volume. Each air-core inductor is a metal slab of defined length, height and thickness formed using back-end-of-line semiconductor manufacturing process.

公开(公告)号：US20210117453A1

公开(公告)日：2021-04-22

申请号：US17133935

申请日：2020-12-24

Applicant: International Business Machines Corporation

Inventor： Ning Duan ,  Yu Huang ,  Zhi Hu Wang ,  Yan Shiping ,  Xin Zhang ,  Jun Zhu

IPC: G06F16/29 ,  G06F16/901

Abstract: Techniques facilitating resolution-based spatial computing are provided. In one example, a computer-implemented method comprises traversing, by a device operatively coupled to a processor, a data structure corresponding to a land area for a location having an index; and determining, by the device, whether the location is at least partially within the land area based on a result of the traversing. In some embodiments, the traversing comprises: obtaining a threshold number of levels based at least in part on a resolution parameter; scanning a first level of the data structure for a node having an index corresponding to the index of the location; and iterating the scanning for respective subsequent levels of the data structure based on the scanning returning a node having subordinate nodes and a number of levels for which the scanning and iterating have been performed being less than the threshold number of levels.

公开(公告)号：US20210111192A1

公开(公告)日：2021-04-15

申请号：US16600604

申请日：2019-10-14

Applicant: International Business Machines Corporation

Inventor： Ko-Tao Lee ,  Xin Zhang ,  Todd Edward Takken

IPC: H01L27/12 ,  H01L21/84 ,  H01L21/762

Abstract: The semiconductor structure includes a semiconductor-on-insulator (SOI) substrate. A group III nitride transistor is formed in a trench in the SOI substrate. The activation of the group III nitride transistor is controlled by a silicon-based transistor. The silicon-based transistor that includes a portion of a silicon layer of the SOI substrate. A group III nitride transistor device is adjacent to the silicon-based transistor.

公开(公告)号：US20200373217A1

公开(公告)日：2020-11-26

申请号：US16417845

申请日：2019-05-21

Applicant: International Business Machines Corporation

Inventor： Xin Zhang ,  Todd Takken ,  Shurong Tian ,  Yuan Yao

IPC: H01L23/367 ,  H01L23/64 ,  H01L49/02

Abstract: An inductor includes a conductor having a first end and a second end, wherein the first end, the second end, or both ends are configured to be mounted on a substrate and configured to receive a heat flow; and one or more magnetic cores surrounding a first portion of the conductor, the first portion of the conductor being intermediate the first end and the second end of the conductor. A second portion of the conductor not surrounded by the one or more magnetic cores is configured to transfer the heat flow from the conductor.

公开(公告)号：US20200304112A1

公开(公告)日：2020-09-24

申请号：US16359664

申请日：2019-03-20

Applicant: International Business Machines Corporation

Inventor： Xin Zhang ,  Todd Takken ,  Tianyu Jia

IPC: H03K5/02 ,  H02H1/00

Abstract: Circuits and methods are provided for utilizing decoupling capacitors to mitigate voltage droop on power supply lines of a power distribution network. A power supply line is capacitively decoupled using a first decoupling capacitor connected to the power supply line and charged to a first voltage level of the power supply line. A second decoupling capacitor is pre-charged to a second voltage level greater than the first voltage level and held in standby. A control circuit determines or predicts an occurrence of a droop event in which the first voltage decreases to a level which is at or below a droop threshold voltage level, and selectively connects the pre-charged second decoupling capacitor to the power supply line to source additional boosting current through discharging of the second decoupling capacitor and thereby capacitively decouple the power supply line using the higher second voltage and additional boosting current.

公开(公告)号：US10776405B2

公开(公告)日：2020-09-15

申请号：US15221723

申请日：2016-07-28

Applicant: International Business Machines Corporation

Inventor： Ning Duan ,  Yu Huang ,  Zhi Hu Wang ,  Xin Zhang ,  Jun Zhu

IPC: G06F16/29 ,  G06F16/22

Abstract: A hierarchical spatial encode structure stored on a computing device is disclosed. The hierarchical spatial encode structure includes a plurality of scale levels having a plurality of encode expressions for a multi-scale context. The encode expressions on a first of the scale levels may include a first length. The encode expressions on a second of the scale levels may include a second length greater than the first length. Each encode expression of the second of the scale levels may include one or more of the encode expressions of the first of the scale levels. A context of the first of the scale levels may have a contain/nest (contained) spatial relation to a context of the second of the scale levels.

公开(公告)号：US20200146576A1

公开(公告)日：2020-05-14

申请号：US16738040

申请日：2020-01-09

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Qianwen Chen ,  Huan Hu ,  Zheng Xu ,  Xin Zhang

IPC: A61B5/0408 ,  A61B5/00 ,  A61B5/0492 ,  A61B5/0496 ,  A61B5/0478 ,  B82Y40/00

Abstract: A method is presented for forming a nanowire electrode. The method includes forming a plurality of nanowires over a first substrate, depositing a conducting layer over the plurality of nanowires, forming solder bumps and electrical interconnections over a second flexible substrate, and integrating nanowire electrode arrays to the second flexible substrate. The plurality of nanowires are silicon (Si) nanowires, the Si nanowires used as probes to penetrate skin of a subject to achieve electrical biopotential signals. The plurality of nanowires are formed over the first substrate by metal-assisted chemical etching.

公开(公告)号：US10587060B2

公开(公告)日：2020-03-10

申请号：US15828126

申请日：2017-11-30

Applicant: International Business Machines Corporation

Inventor： Todd E. Takken ,  Xin Zhang ,  Yuan Yao ,  Andrew Ferencz ,  Paul W. Coteus

IPC: H01R12/52 ,  H01R12/57 ,  H01R43/16 ,  H05K1/11 ,  H05K3/40 ,  H05K1/14 ,  H01R12/51

Abstract: Printed circuit board (PCB), electrical structures including PCBs, and methods for making the same. One PCB structures includes: a substrate having a plurality of surfaces, including a first aerial main face (AMF), a second AMF, and a first peripheral end face (PEF), wherein the first PEF separates the first AMF from the second AMF, and a first plurality of contacts embedded in the first PEF, where each of the first plurality of contacts forms a contiguous contact with the first PEF and at least one of i) the second AMF, ii) the first AMF, and iii) another one of the plurality of surfaces.

公开(公告)号：US20200058639A1

公开(公告)日：2020-02-20

申请号：US16663779

申请日：2019-10-25

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Xin Zhang ,  Ko-Tao Lee ,  Todd E. Takken ,  Paul W. Coteus ,  Andrew Ferencz

IPC: H01L27/06 ,  H01L23/528 ,  H01L21/02 ,  H01L29/66 ,  H01L27/12 ,  H01L21/84 ,  H01L21/8258 ,  H01L21/768 ,  H01L29/20 ,  H01L27/085

Abstract: A method for fabricating a semiconductor device includes, for a substrate having a first region protected by a cap layer, forming a first device on a second region of the substrate. The substrate includes an insulator layer disposed between a first semiconductor layer and a second semiconductor layer each including a first semiconductor material. The method further includes forming a second device on the first region, including forming one or more transistors each having a channel formed from a second semiconductor material different from the first semiconductor material.

公开(公告)号：US20190202420A1

公开(公告)日：2019-07-04

申请号：US16294122

申请日：2019-03-06

Applicant: International Business Machines Corporation

Inventor： Qi Cheng Li ,  Jie Ma ,  Li Jun Mei ,  Xin Zhang ,  Xin Zhou

IPC: B60T8/172 ,  B60T7/04

CPC classification number: B60T8/172 ,  B60T7/04 ,  B60T7/042 ,  B60T2270/86

Abstract: Systems and methods for facilitating an automatic adjustment of a braking system is provided. In one example, a computer-implemented method can comprise generating, by a system operatively coupled to a processor, a braking curve model based on braking usage pattern data corresponding to one or more vehicles. The computer-implemented method can also comprise adjusting, by the system, a supplemental braking component of the first vehicle based on a simulation of one or more braking components corresponding to the one or more vehicles, wherein the one or more braking components is represented by the braking curve model.