1
Alvin M Kong, James C Lau, Steven S Chan: Mass simultaneous sealing and electrical connection of electronic devices. TRW, September 5, 1995: US05448014 (122 worldwide citation)

The present invention provides a new and effective method for the sealing and electrical testing of electronic devices; and particularly for surface acoustic wave devices. In accordance with the present invention, the cost and size of making hermetically sealed packages for electronic devices and of ...


2
Alvin M Kong, Robert B Stokes, Joseph P Trieu, Rahil U Bhorania, Michael D Lammert: Planar airbridge RF terminal MEMS switch. TRW, Michael S Yatsko, April 17, 2001: US06218911 (35 worldwide citation)

An RF switch and a process for fabricating an RF switch which includes multiple throws and can be fabricated utilizing only a single layer of metallization. The switch in accordance with the present invention includes an airbridge suspended beam disposed adjacent to one or more metal traces. One or ...


3
Kei Fung Lau, Robert B Stokes, Kuo Hsiung Yen, Alvin M Kong, Steven E Housholder, Ronald D Kasparek: Adjustable saw device. TRW, Connie M Thousand, September 18, 2001: US06291924 (19 worldwide citation)

An adjustable surface acoustic wave (SAW) transducer is fabricated on a piezoelectric substrate. The adjustable SAW transducer includes a plurality of SAW interdigital transducer (IDT) fingers disposed on the substrate. Miniature switches are used to provide a plurality of interconnection patterns b ...


4
Patty P Chang Chien, Kelly J Tomquist, Craig B Geiger, Alvin M Kong: Method of fabricating high yield wafer level packages integrating MMIC and MEMS components. Northrop Gruman, Carmen B Patti & Assoc, June 27, 2006: US07067397 (15 worldwide citation)

Monolithic microwave integrated circuit (MMIC) components and micro electromechanical systems (MEMS) components are integrated onto a single substrate at a wafer scale, by first performing MMIC and MEMS fabrication on a front face of a thick substrate wafer, bonding the substrate wafer to a cover wa ...


5
Kuo Hsiung Yen, Robert B Stokes, Kei Fung Lau, Alvin M Kong, Reynold S Kagiwada: Low-loss acoustic wave filter device. TRW, Noel F Heal, Robert M Wallace, April 23, 1985: US04513261 (11 worldwide citation)

An acoustic wave filter device with low loss and low passband ripple characteristics. The filter comprises three bidirectional electroacoustical transducers disposed along a common axis on the surface of a substrate of piezoelectric material. The two outer transducers of the three function as input ...


6
David S Yip, Alvin M Kong, Rahil U Bhorania: Recessed reflector single phase unidirectional transducer. TRW, November 12, 2002: US06480076 (4 worldwide citation)

The invention relates to a new family of surface acoustic wave single-phase unidirectional transducers (SPUDTs) by using M uniform width, uniformly spaced, single-level interdigitated electrodes lying on a uniform grid of a piezoelectric substrate where unidirectionality is achieved by selectively e ...


7
Robert B Stokes, Alvin M Kong: MEMS millimeter wave switches. Northrop Grumman Corporation, Katten Muchin Zavis Rosenman, John S Paniaguas, March 29, 2005: US06873223 (2 worldwide citation)

An RF switch useable up to millimeter wave frequencies and higher frequencies of 30 GHz and above. Four embodiments of the invention are configured as ground switches. Two of the ground switch embodiments are configured with a planar air bridge. Both of these embodiments are configured so that the b ...


8
Davis S Yip, Edward M Garber, Alvin M Kong: Weighted SAW reflector using distributed acoustic reflective dots. Northrop Grumman Corporation, John A Miller, Warn Hoffmann Miller & LaLone P C, January 25, 2005: US06847272

A reflective grating (18) having spaced grid lines (36) patterned on a piezoelectric substrate (12) for controlling the magnitude and phase of surface acoustic waves (28) in a reflective filter (10) or resonator. The magnitude and phase of the surface acoustic wave (28) are controlled by a sampling ...


9
Robert B Stokes, Alvin M Kong: MEMS millimeter wave switches. Northrop Grumman Systems Corporation, Patti & Malvone Law Group, October 6, 2015: USRE045733

An RF switch useable up to millimeter wave frequencies and higher frequencies of 30 GHz and above. Four embodiments of the invention are configured as ground switches. Two of the ground switch embodiments are configured with a planar air bridge. Both of these embodiments are configured so that the b ...


10
Robert B Stokes, Alvin M Kong: MEMS millimeter wave switches. Northrop Grumman Systems Corporation, Patti & Malvone Law Group, September 29, 2015: USRE045704

An RF switch useable up to millimeter wave frequencies and higher frequencies of 30 GHz and above. Four embodiments of the invention are configured as ground switches. Two of the ground switch embodiments are configured with a planar air bridge. Both of these embodiments are configured so that the b ...



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