High thermal resistivity crystal resonator support structure and oscillator package

摘要

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.