Patents by Inventor Hsien Heng Chen
Hsien Heng Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240105644Abstract: A semiconductor die package includes a high dielectric constant (high-k) dielectric layer over a device region of a first semiconductor die that is bonded with a second semiconductor die in a wafer on wafer (WoW) configuration. A through silicon via (TSV) structure may be formed through the device region. The high-k dielectric layer has an intrinsic negative charge polarity that provides a coupling voltage to modify the electric potential in the device region. In particular, the electron carriers in high-k dielectric layer attracts hole charge carriers in device region, which suppresses trap-assist tunnels that result from surface defects formed during etching of the recess for the TSV structure. Accordingly, the high-k dielectric layer described herein reduces the likelihood of (and/or the magnitude of) current leakage in semiconductor devices that are included in the device region of the first semiconductor die.Type: ApplicationFiled: January 6, 2023Publication date: March 28, 2024Inventors: Tsung-Hao YEH, Chien Hung LIU, Hsien Jung CHEN, Hsin Heng WANG, Kuo-Ching HUANG
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Publication number: 20090076683Abstract: An anti-rollover system including a processor, a side impact sensor in communication with the processor, and a controllable suspension-based system and/or a controllable brake-based system in communication with the processor, wherein the controllable suspension-based system and/or the controllable brake-based system is actuated when the side impact sensor detects a side impact.Type: ApplicationFiled: September 13, 2007Publication date: March 19, 2009Inventors: Chee Siong Lim, James F. Patterson, Hsien Heng Chen
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Patent number: 6681167Abstract: A vehicle chassis control stores first and second calibrated values of a predetermined braking parameter and a steering correction parameter. The control includes apparatus for detecting a split coefficient condition with respect to the road surface; and, when it does and a braking signal is present, the control actuates braking apparatus for a wheel on the side of the vehicle having the higher coefficient of friction with the first calibrated value of the predetermined braking parameter and simultaneously actuates the steering apparatus with a steering correction to compensate for yaw induced by braking on the split coefficient road surface. If the steering correction is not available, however, the braking apparatus is actuated for the wheel having the higher coefficient of friction with the second calibrated value of the predetermined braking parameter without simultaneously actuating the steering apparatus with the steering correction.Type: GrantFiled: June 4, 2002Date of Patent: January 20, 2004Assignee: Delphi Technologies, Inc.Inventors: Edward John Bedner, Aleksander Boguslaw Hac, Hsien Heng Chen, Ashok Chandy, Michael John Check
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Patent number: 6640171Abstract: A rear steer control for a motor vehicle considers vehicle velocity in three ranges and provides an out of phase rear steer angle in open loop control within a low velocity range for oversteer assistance of parking and similar vehicle maneuvers, an in phase rear steer angle in closed loop control responsive to vehicle yaw rate within a high velocity range for understeer vehicle stability assistance, and a steer angle in closed loop control responsive to vehicle yaw rate within an intermediate velocity range. In a preferred embodiment, the closed loop control in the high velocity range may be combined with an open loop control. The control further provides supplemental throttle adjustments in coordination with the rear steer control for increased traction and stability in a turn.Type: GrantFiled: August 3, 2001Date of Patent: October 28, 2003Assignee: Delphi Technologies, Inc.Inventors: Hsien Heng Chen, Karen Ann Boswell, Edward John Bedner
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Publication number: 20020198646Abstract: A vehicle chassis control stores first and second calibrated values of a predetermined braking parameter and a steering correction parameter. The control includes apparatus for detecting a split coefficient condition with respect to the road surface; and, when it does and a braking signal is present, the control actuates braking apparatus for a wheel on the side of the vehicle having the higher coefficient of friction with the first calibrated value of the predetermined braking parameter and simultaneously actuates the steering apparatus with a steering correction to compensate for yaw induced by braking on the split coefficient road surface. If the steering correction is not available, however, the braking apparatus is actuated for the wheel having the higher coefficient of friction with the second calibrated value of the predetermined braking parameter without simultaneously actuating the steering apparatus with the steering correction.Type: ApplicationFiled: June 4, 2002Publication date: December 26, 2002Inventors: Edward John Bedner, Aleksander Boguslaw Hac, Hsien Heng Chen, Ashok Chandy, Michael John Check
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Publication number: 20020042671Abstract: A rear steer control for a motor vehicle considers vehicle velocity in three ranges and provides an out of phase rear steer angle in open loop control within a low velocity range for oversteer assistance of parking and similar vehicle maneuvers, an in phase rear steer angle in closed loop control responsive to vehicle yaw rate within a high velocity range for understeer vehicle stability assistance, and a steer angle in closed loop control responsive to vehicle yaw rate within an intermediate velocity range. In a preferred embodiment, the closed loop control in the high velocity range may be combined with an open loop control. The control further provides supplemental throttle adjustments in coordination with the rear steer control for increased traction and stability in a turn.Type: ApplicationFiled: August 3, 2001Publication date: April 11, 2002Inventors: Hsien Heng Chen, Karen Ann Boswell, Edward John Bedner
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Publication number: 20020022915Abstract: A rear steer control for a motor vehicle considers vehicle velocity in three ranges and provides an out of phase rear steer angle in open loop control within a low velocity range for oversteer assistance of parking and similar vehicle maneuvers, an in phase rear steer angle in closed loop control responsive to vehicle yaw rate within a high velocity range for understeer vehicle stability assistance, and a steer angle in closed loop control responsive to vehicle yaw rate within an intermediate velocity range. In a preferred embodiment, the closed loop control in the high velocity range may be combined with an open loop control. The control further provides supplemental throttle adjustments in coordination with the rear steer control for increased traction and stability in a turn.Type: ApplicationFiled: December 15, 2000Publication date: February 21, 2002Inventors: Hsien Heng Chen, Karen Ann Boswell, Edward John Bedner
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Patent number: 6175790Abstract: An improved closed-loop vehicle yaw control in which a yaw rate limit based on measured lateral acceleration is used during transient steering maneuvers to dynamically limit a desired yaw rate derived from driver steering input. A preliminary yaw rate limit is computed based on the measured lateral acceleration, and a dynamic yaw rate limit having a proper phase relationship with the desired yaw rate is developed based on the relative magnitudes of the desired yaw rate and the preliminary yaw rate limit. A two-stage process is used to develop the dynamic yaw rate limit. A first stage yaw rate limit is determined according the lower in magnitude of the desired yaw rate and the preliminary yaw rate limit, and a second stage yaw rate limit (i.e., the dynamic yaw rate limit) is determined according to the relative magnitudes of (1) the desired yaw rate and the second stage yaw rate limit, and (2) the first stage yaw rate limit and the second stage yaw rate limit.Type: GrantFiled: August 24, 1998Date of Patent: January 16, 2001Assignees: General Motors Corporation, Delphi Technologies IncInventors: William Chin-Woei Lin, Youssef Ahmed Ghoneim, David Michael Sidlosky, Hsien Heng Chen, Yuen-Kwok Chin
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Patent number: 6125319Abstract: A brake system control method, comprising the steps of: determining a maximum acceleration of a vehicle on a high coefficient of adhesion road surface; measuring an acceleration of the vehicle; determining a ratio between the measured acceleration of the vehicle and the maximum acceleration of the vehicle on the high coefficient of adhesion road surface; responsive to the ratio, determining a signal indicative of present coefficient of adhesion; determining a brake actuator command responsive to the signal; and providing the brake actuator command to a brake actuator, wherein an accurate estimation of coefficient of friction between the vehicle wheels and the road surface is used in the brake system control.Type: GrantFiled: August 17, 1998Date of Patent: September 26, 2000Assignee: General Motors CorporationInventors: Aleksander Boguslaw Hac, John Francis Hoying, Kamal Naif Majeed, Hsien Heng Chen, Joachim Busshardt
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Patent number: 6122584Abstract: A brake system control method, comprising the steps of: measuring a longitudinal speed and steering angle of the vehicle; specifying an un-damped natural frequency and a damping ratio for a linear reference model of said vehicle; determining a first gain parameter relating a desired value of steady state lateral velocity to the vehicle steering angle; computing a desired lateral velocity as a function of said first gain parameter, the measured longitudinal speed, the measured steering angle, and the specified un-damped natural frequency and damping ratio; determining a second gain parameter relating a desired value of steady state yaw rate to the vehicle steering angle; computing a desired yaw rate as a function of said second gain parameter, the measured longitudinal speed and steering angle, and the specified un-damped natural frequency and damping ratio; measuring a lateral acceleration and yaw rate of said vehicle, and forming a yaw rate command for said vehicle based at least part in a first deviation beType: GrantFiled: February 22, 1999Date of Patent: September 19, 2000Assignee: General Motors CorporationInventors: William Chin-Woei Lin, Youssef Ahmed Ghoneim, Hsien Heng Chen, Yuen-Kwok Chin, David Michael Sidlosky
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Patent number: 6035251Abstract: A brake system control for use in a vehicle with wheels, wheel brakes and a body, comprising the steps of: measuring a plurality of vehicle parameters; responsive to the measured parameters, determining at least a vehicle yaw rate, a vehicle slip angle, a desired yaw rate and a desired slip angle; responsive to the measured parameters, estimating a coefficient of adhesion between the vehicle wheels and a road surface; implementing a control responsive to the vehicle yaw rate and the desired yaw rate with a first authority and responsive to the vehicle slip angle and the desired slip angle with a second authority, wherein the first authority increases as the estimated coefficient of adhesion increases and decreases as the estimated coefficient of adhesion decreases; and controlling the wheel brakes responsive to the control to reduce a first difference between the vehicle yaw rate and the desired yaw rate and to reduce a second difference between the vehicle slip angle and the desired slip angle.Type: GrantFiled: November 10, 1997Date of Patent: March 7, 2000Assignee: General Motors CorporationInventors: Aleksander Boguslaw Hac, John Francis Hoying, Rowland Curl Augustus, Joachim Busshardt, Sean Padraig O'Connell, William Chin-Woei Lin, Youssef Ahmed Ghoneim, Hsien Heng Chen, David Michael Sidlosky, Yuen-Kwok Chin, David John Barta
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Patent number: 5941919Abstract: In a vehicle with a first operating mode in which all vehicle wheels have substantially no lateral movement on a road surface and a second operating mode in which at least some of the vehicle wheels have lateral movement on the road surface, and with an actuator capable of affecting vehicle yaw rate, a vehicle yaw rate control method comprising the steps of: measuring an actual vehicle yaw rate; measuring vehicle steering wheel position; in the second mode of operation, determining a desired yaw rate command linearly responsive to the measured steering wheel position; wherein the actuator is controlled to minimize a difference between the measured vehicle yaw rate and the desired vehicle yaw rate.Type: GrantFiled: October 16, 1996Date of Patent: August 24, 1999Assignee: General Motors CorporationInventors: Stephen Robert Pastor, Ronald Paul, Michael Douglas Rizzo, Edward John Bedner, Vivek Jaikamal, Kevin Austin O'Dea, Edmund Stanley Browalski, Howard Hans Ludwig, Scott Douglas Morrison, Hsien Heng Chen, Yuen-Kwok Chin, Youssef Ahmed Ghoneim, William Chin-Woei Lin, Mutasim Abdurrahman Salman, David Michael Sidlosky, Michael Paul Turski
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Patent number: 5895433Abstract: A vehicle chassis system control method, comprising the steps of: measuring vehicle yaw rate, vehicle speed, and vehicle lateral acceleration; determining, responsive to the yaw rate, vehicle speed and lateral acceleration, an index ratio; comparing the index ratio to a predetermined threshold indicating a limit above which active chassis control is not desired; and responsive to the comparison, setting a signal indicating termination of active chassis control if the index ratio is above the predetermined threshold.Type: GrantFiled: May 23, 1996Date of Patent: April 20, 1999Assignee: General Motors CorporationInventors: Hsien Heng Chen, Eldon Gerrald Leaphart, Edward John Bedner, Yuen-Kwok Chin
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Patent number: 5746486Abstract: A brake control system method according to the steps of: determining driver commanded yaw rate; measuring actual yaw rate; determining a yaw rate error; determining, in response to vehicle conditions, a yaw rate dead band wherein the yaw rate dead band varies with vehicle conditions; comparing the yaw rate error to the dead band; and if the yaw rate error exceeds the dead band, controlling the vehicle responsive to the yaw rate error, wherein yaw rate control only occurs when the yaw rate error exceeds the dead band.Type: GrantFiled: August 29, 1997Date of Patent: May 5, 1998Assignee: General Motors CorporationInventors: Ronald Paul, Stephen Robert Pastor, Michael Douglas Rizzo, Duane Edward Bassett, Edward John Bedner, Douglass L. Carson, Hsien Heng Chen, Yuen-Kwok Chin, Youssef Ahmed Ghoneim, Alan James Lee, William Chin-Woei Lin, Howard Hans Ludwig
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Patent number: 5720533Abstract: In a vehicle with first and second front vehicle wheels and third and fourth rear vehicle wheels and at least one member of a first group comprising anti-lock brake control and positive acceleration traction control, a brake control method comprising the steps of: determining a desired vehicle yaw rate; determining an actual vehicle yaw rate; responsive to the desired and actual vehicle yaw rates, determining an axle command; responsive to the desired and actual vehicle yaw rates, determining a torque command; applying the axle command during activation of one of the anti-lock brake control and the positive acceleration traction control to one member of a second group comprising (i) the two front wheels and (ii) the two rear wheels, wherein wheel-to-road traction is increased and a difference between desired vehicle yaw rate and actual vehicle yaw rate is minimized; and applying the torque command to at least one of the vehicle wheels independently of the axle command to create a yaw torque moment on the vehiType: GrantFiled: October 15, 1996Date of Patent: February 24, 1998Assignee: General Motors CorporationInventors: Stephen Robert Pastor, William Chin-Woei Lin, Michael Douglas Rizzo, Duane Edward Bassett, Edward John Bedner, Edmund Stanley Browalski, Douglass L. Carson, Hsien Heng Chen, Yuen-Kwok Chin, Youssef Ahmed Ghoneim, Hong Xing Hu, Vivek Jaikamal, Ronald Paul, Steven Lee Tracht, Michael Paul Turski