John L. Leicht - Hawthorn Woods IL Hugh R. Malone - Phoenix AZ Douglas J. Mathews - Mesa AZ James E. Mitzlaff - Arlington Heights IL Scott D. Munier - Arlington Heights IL Michele G. Oehlerking - Riverside IL Vernon R. Scott - Scottsdale AZ
Assignee:
Motorola, Inc. - Schaumburg IL
International Classification:
H01P 5107
US Classification:
333 26
Abstract:
A non-hermetic, three-dimensional, microwave semiconductor device carrier with integral waveguide couplers is disclosed. A molded plastic substrate having a suitable dielectric constant and varying thicknesses comprises plated conductors and locations for receiving GaAs MMIC's. MMIC's are mounted to a metal backplate and die bonded to the plated conductors. The waveguide couplers are integrally molded as part of the carrier substrate, and comprise plated through cylindrical members. Signals from a waveguide cavity are coupled to the MMIC's by inserting the waveguide couplers into a waveguide port. The carrier and integral waveguide coupler together with a plated molded cover forms a non-hermetic package providing pseudo-shielding cavities about the resident multiple semiconductor GaAs die. Transmission line impedance control is enhanced varying the substrate thickness on a per conductor basis. Frequency of operation exceeds 12 gigahertz.
Name / Title
Company / Classification
Phones & Addresses
Douglas Mathews Executive Vice Presi
Capitol Construction Svc Lp Contractors - General
220 N Smith St STE 210, Palatine, IL 60067 (847)6544700, (847)3587331
Douglas Mathews Vice President
Capitol Construction Svc Lp General Contractors-Single-Family Houses
220 N Smith St, Palatine, IL 60067 Website: capitolconstruction.com
Douglas Mathews Executive Vice Presi, Vice President
Capitol Construction Svc Lp Home Builders · New Single-Family General Contrs
220 N Smith St STE 210, Palatine, IL 60067 (847)6544700, (847)3587331
Nashville Neurosurgery Group 330 22 Ave N, Nashville, TN 37203 (615)3200007 (phone), (615)3200009 (fax)
Education:
Medical School Vanderbilt University School of Medicine Graduated: 1991
Procedures:
Spinal Fusion Spinal Surgery Carpal Tunnel Decompression Craniotomy Spinal Cord Surgery
Conditions:
Intervertebral Disc Degeneration
Languages:
English
Description:
Dr. Mathews graduated from the Vanderbilt University School of Medicine in 1991. He works in Nashville, TN and specializes in Surgery , Neurological. Dr. Mathews is affiliated with Saint Thomas Midtown Hospital and Tristar Centennial Medical Center.
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