University of Maine System

Mauricio Pereira Da Cunha

Thomas Moonlight

George M Harris

Bennet Meulendyk

Scott Moulzolf

Robert J Lad

Alberto Canabal

David Joseph Frankel

George Paul Bernhardt, Iv

George Harris

Methods and systems for attaching a device to a substrate for operation of the device under variable conditions includes attaching a device to a substrate, disposing a removable material over a first portion of the device, positioning a second portion of the device adjacent to the substrate, operably attaching a retainer to the substrate adjacent to the device with a part of the retainer disposed over the removable material, and removing the removable material to form a gap between the device and the retainer so that the device is retained on the substrate, and wherein the gap allows the device to move freely relative to the retainer and the substrate in response to changes in temperature.

Method for retaining a device to a substrate

Surface acoustic wave resonators for use in high temperature applications including a piezoelectric substrate, at least one interdigital transducer supported by the piezoelectric substrate, and a grating reflector supported by the piezoelectric substrate, the grating reflector being fabricated of a heavy metal and comprising a plurality of electrodes, at least one electrode of the plurality of electrodes being electrically isolated from at least one other electrode. Methods of making surface acoustic wave resonators are also included.

Surface acoustic wave resonator with an open circuit grating for high temperature environments

An ultra-thin film electrode including at least one electrically conductive layer disposed upon an adhesive layer that is carried by a substrate.

Ultra-thin film electrodes and protective layer for high temperature device applications

A Surface Acoustic Wave device including a resonator or a delay line formed from an electrically conductive material having a high melting temperature disposed upon the surface of a substrate formed from one of the LGX family of crystals or gallium phosphate. The Surface Acoustic Wave Device is operative as a sensor at high temperatures.

Surface acoustic wave devices for high temperature applications

A Surface Acoustic Wave (SAW) Device that includes a substrate formed from a material selected from the LGX family of crystals and having a SAW propagation surface defined by Euler angles relative to the corresponding crystal axes having a range of &#x2212;5&#xb0;&#x3c;&#x3c6;&#x3c;+5&#xb0;, &#x2212;5&#xb0;&#x3c;&#x3b8;&#x3c;50&#xb0; and 80&#xb0;&#x3c;&#x3c8;&#x3c;100&#xb0;. The device being utilized for liquid sensor applications including the detection of chemical or biological agents present in a liquid environment. The device may or may not include the deposition of one or more chemical and/or biological films upon the propagation surface to enhance the sensitivity thereof. At least one interdigital transducer is formed upon the substrate propagation surface and that is operative to launch surface acoustic waves having a shear horizontal mode.

Growing community of inventors

Orono, ME, United States of America

Mauricio Pereira Da Cunha