Isolated pressure transducer
AssigneeHoneywell International Inc.
InventorThomas James
Life of this patent
Estimating the term…
Abstract
A pressure transducer includes a carrier having a central aperture for receiving fluid from a vessel. A sense die mounts on the carrier having a first side configured to interact with a fluid from the vessel. A gel attaches the sense die to the carrier. Pressure-sensing circuitry is formed on a second side of the sense die not exposed to the fluid. Further, a ceramic board mounts on the carrier, the ceramic board has conductive paths electrically connecting the pressure-sensing circuitry. Circuitry other than the pressure-sensing circuitry also mounts on the ceramic board and is electrically connected to the conduction paths. A hermetically-sealed cover configured to prevent the fluid or other external elements from contacting the second side of the sense die wherein the cover creates a defined volume surrounding the second side.
Claims9
A pressure transducer, comprising:
- a carrier having a central aperture for receiving fluid from a vessel;
- a sense die mounted on the carrier, the sense die having a first side positioned to interact with the fluid received from the vessel;
- pressure-sensing circuitry formed on a second side of the sense die note exposed to the fluid;
- a ceramic board mounted on the carrier, the ceramic board bearing conductive paths electrically connecting the pressure-sensing circuitry to external circuitry;
- and
- at least a first and a second layer, wherein the first layer includes at least a first conductive path electrically connected to at least the pressure-sensing circuitry, and the second layer includes at least a second conductive path in contact with the first conductive path.
Dependencies are inferred from the claim text.