Waferscale physiological characteristic sensor package with integrated wireless transmitter
An embodiment of a sensor device includes a base substrate, a circuit pattern formed overlying the interior surface of the substrate, a physiological characteristic sensor element on the exterior surface of the substrate, conductive plug elements located in vias formed through the substrate, each conductive plug element having one end coupled to a sensor electrode, and having another end coupled to the circuit pattern, a multilayer component stack carried on the substrate and connected to the circuit pattern, the stack including features and components to provide processing and wireless communication functionality for sensor data obtained in association with operation of the sensor device, and an enclosure structure coupled to the substrate to enclose the interior surface of the substrate, the circuit pattern, and the stack.
1. A physiological characteristic sensor device comprising:
an enclosure structure that defines a component cavity;
a substrate having an exterior surface and an interior surface opposing the exterior surface, the substrate serving as a lid that encloses the component cavity, wherein the interior surface of the substrate faces the component cavity;
a physiological characteristic sensor element located on the exterior surface of the substrate, the physiological characteristic sensor element comprising sensor electrodes;
a multilayer component stack mounted in the enclosure structure, the multilayer component stack comprising features and components to provide processing and wireless communication functionality for sensor data obtained in association with operation of the physiological characteristic sensor element, and the multilayer component stack comprising an active layer, a passive component layer, and a power source component layer; and
conductive plug elements located in respective vias formed through the substrate, each conductive plug element having a first end electrically coupled to one of the sensor electrodes, and having a second end electrically coupled to the multilayer component stack,
wherein the vias and the conductive plug elements are configured to employ a counterbore methodology to provide mechanical support for an insertion needle for deploying the physiological characteristic sensor element in a user, and
wherein the substrate encloses the multilayer component stack inside the component cavity of the enclosure structure.
2. The physiological characteristic sensor device of claim 1 , wherein:
the enclosure structure is formed from a second substrate.
3. The physiological characteristic sensor device of claim 1 , wherein the active layer comprises a system on a chip (SoC) device.
4. The physiological characteristic sensor device of claim 1 , wherein the power source component layer comprises a plurality of solid state battery elements in a stacked arrangement.
5. The physiological characteristic sensor device of claim 1 , further comprising a conductive circuit pattern formed overlying the interior surface of the substrate, wherein the second end of each conductive plug element is electrically coupled to the conductive circuit pattern.
6. The physiological characteristic sensor device of claim 1 , wherein the physiological characteristic sensor element comprises a glucose sensor element.
7. The physiological characteristic sensor device of claim 1 , wherein the multilayer component stack comprises:
an interconnect arrangement to electrically and physically couple together the active layer, the passive component layer, and the power source component layer.