ENVIRONMENTAL SENSOR STRUCTURE

摘要

A device in which an electronic circuit positioned within a cavity of a package housing is encased by a bubble restrictor material, with a media resistant material overlaying the bubble restrictor material. The bubble restrictor material functions to inhibit the formation and growth of moisture-related bubbles within the material, including at the interfaces of the material and surfaces within the package housing. The media resistant material is resistant to physical and chemical alterations by media within an external environment to which the device is exposed. The media resistant material and bubble resistant material function to transfer a sensed characteristic of the media to the electronic circuit.

主权项

1. A device comprising:
a package housing with a cavity; one or more electronic circuits disposed within the cavity; a bubble restrictor material within the cavity encasing the one or more electronic circuits; and a media resistant material disposed within the cavity over the bubble restrictor material, wherein the media resistant material and the bubble restrictor material are configured to transfer to the one or more electronic circuits a sensed characteristic of a media of an environment external to the package housing of the device.