Chi Ho Cheung

US Patent:

7696062, Apr 13, 2010

Filed:

Jul 25, 2007

Appl. No.:

11/828147

Inventors:

Patty Pei-Ling Chang-Chien - Redondo Beach CA, US
Chi Kong Cheung - Pasadena CA, US
Melanie Sachiko Yajima - Los Angeles CA, US
Xianglin Zeng - Monterey Park CA, US

Assignee:

Northrop Grumman Systems Corporation - Los Angeles CA

International Classification:

H01L 21/30

US Classification:

438455, 438456, 438464

Abstract:

A method for mounting a dielectric substrate to a semiconductor substrate, such as mounting a dielectric antenna substrate to an MMIC semiconductor substrate. The method includes providing a thin dielectric antenna substrate having metallized layers on opposing sides. In one embodiment, carrier wafers are used to handle and maintain the dielectric substrate in a flat configuration as the metallized layers are patterned. The dielectric substrate is sealed to the semiconductor substrate using a low temperature bonding process. In an alternate embodiment, the metallized layers on the dielectric substrate are patterned simultaneously so as to prevent the substrate from curling.

US Patent:

20210362758, Nov 25, 2021

Filed:

Nov 13, 2018

Appl. No.:

16/763908

Inventors:

- Blackburn, GB
Nima Bahrami - Palos Verdes Estates CA, US
Ryan Matthew Kraft - Hermosa Beach CA, US
Quentin M. D'Avout - Long Beach CA, US
David Alexander Browne - Los Angeles CA, US
Tyler Atkinson Jacobs - Redondo Beach CA, US
Chi Cheung - New York NY, US
Chad Albert Baker - Brea CA, US

International Classification:

B61L 27/00
B60L 13/06

Abstract:

Techniques for injecting a vehicle into a high speed transportation system are described. A travel request is received from a user. The user is determined to be authorized to travel using the high speed transportation system, based on a profile associated with the user. An injection portal for the user to enter the transportation system is identified. One or more instructions for the user are provided, relating to the injection portal. A vehicle associated with the user is identified at the injection portal. Characteristics of the vehicle are sensed at the injection portal, including a center of gravity of the vehicle. The characteristics are determined to satisfy threshold values, and the vehicle is authorized for travel in the transportation system. A vehicle profile is generated. The vehicle profile is transmitted to a second controller associated with the transportation system. The vehicle is injected into the transportation system.