Resonators and devices with a pixel electrode operating across a gap
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United States of America Patent
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May 11, 2021
Grant Date -
Nov 12, 2020
app pub date -
Dec 30, 2019
filing date -
May 7, 2019
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Abstract
A family of resonators and other devices which employ virtual electrodes using pixel based projection across a gap onto a material. In many embodiments, the pixel is projected onto a piezoelectric material, such as quartz crystal, by an integrated circuit die placed opposite a face of the crystal. The die projects a single pixel of electromagnetic energy onto the crystal, which vibrates and produces its own electromagnetic energy which is received by the pixel. Pixel projection onto other materials, including non-resonant materials, is also disclosed. The pixel based projected electrodes may be used in combination with, or in lieu of, conventional metal electrodes. The single pixel may be controlled in gain and phase in order to achieve specific desired resonator response characteristics. Many types of devices using pixel based electrode projection are disclosed—including resonators having one or more single-pixel virtual electrodes, and other types of devices.
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