High thermal resistivity crystal resonator support structure and oscillator package
AssigneeCTS Corporation
InventorJohn Biernacki
Life of this patent
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Abstract
A crystal support structure and oscillator package for ovenized oscillators that has improved thermal isolation of the crystal. The support has a glass tubular wall with helical coils. Airgaps are formed circumferentially around the wall. A conductive metal layer is located over the surface of the wall. One end of the wall is supporting and electrically connected to a crystal resonator. Another end of the wall is attached to and electrically connected to a substrate. The crystal support forms an electrical path between the crystal resonator and the substrate and thermally isolates the crystal resonator from the substrate.
Claims17
A high thermal resistivity crystal support for an oscillator, comprising:
- a) a glass tubular wall having at least one airgap circumferentially disposed around the wall forming at least one coil;
- b) a conductive metal layer disposed over the wall;
- c) a first end of the wall adjacently supporting and electrically connected to a crystal resonator;
- and
- d) a second end of the wall attached to and electrically connected to a substrate such that the crystal support forms an electrical path between the crystal resonator and the substrate, the crystal support thermally isolating the crystal resonator from the substrate.
A high thermal resistivity crystal support for an oscillator, comprising:
- a) a glass wire circumferentially disposed around a bore forming a plurality of coils;
- b) a conductive metal layer disposed over the wire;
- c) a first end of the support adjacently supporting and electrically connected to a crystal resonator;
- and
- d) a second end of the support attached to and electrically connected to a substrate such that the crystal support forms an electrical path between the crystal resonator and the substrate, the crystal support thermally isolating the crystal resonator from the substrate.
A high thermal resistivity crystal support for an oscillator, comprising:
- a) an insulative tubular wall having at least one airgap disposed around the wall forming at least one helical coil;
- b) a conductive metal layer disposed over the wall;
- c) a first end of the wall adjacently supporting and electrically connected to a crystal resonator;
- and
- d) a second end of the wall attached to and electrically connected to a substrate such that the crystal support forms an electrical path between the crystal resonator and the substrate, the crystal support thermally isolating the crystal resonator from the substrate.
Dependencies are inferred from the claim text.