Abstract: An example device includes a silicon substrate having a first substrate surface and a second substrate surface; a plurality of layers associated with one or more electronic components of an integrated circuit (IC), where the plurality of layers are deposited on the second substrate surface; a lithium-based battery having a plurality of battery layers deposited on the first substrate surface of the silicon substrate, where the lithium-based battery includes an anode current collector and a cathode current collector; a first through-silicon via (TSV) passing through the silicon substrate and providing an electrical connection between the anode current collector and the plurality of layers associated with the one or more electronic components of the IC; and a second TSV passing through the silicon substrate and providing an electrical connection between the cathode current collector and the plurality of layers associated with the one or more electronic components of the IC.

Abstract: A body-mountable device includes a flexible substrate configured for mounting to a skin surface. The flexible substrate is configured to be adhered or otherwise mounted to the skin in a manner that minimally impacts activities of the body. The device includes a flexible display configured to provide indications to a user, e.g., indications of sensor readings, medical alerts, or operational states of the device. The display could be operated on a very low power budget, e.g., the display could be operated intermittently. In some examples, the display could include an e-paper display or similar low power display elements. In some examples, elements of the display, e.g., electrodes of a multi-segment display, could be formed on the flexible substrate such that additional elements of the display, e.g., a layer of display medium and a layer of transparent conductor, could be adhered or otherwise attached to the formed elements.

Abstract: An example system includes a flexible substrate configured to be mounted to a skin surface. The system includes a sensor probe that has a first end attached to the flexible substrate and a second end configured to extend beneath the skin surface to contact interstitial fluid. A sensor is configured to measure a physiological property and is disposed at the second end of the sensor probe. A transmitter is attached to the flexible substrate and is configured to provide information related to sensor measurements to a controller. The controller is configured to a drug delivery rate based on the information.

Abstract: Methods and systems described herein relate to broadcasting an advertisement event on a wireless channel. An example method includes generating, based on data, a data signal including one or more data packets, where each of the one or more data packets is a non-connectable and non-scannable data packet; generating an RF signal using an oscillator circuit; directly modulating the RF signal, based on the data signal, to generate a modulated RF signal; amplifying the modulated RF signal; broadcasting the amplified modulated RF signal on the wireless channel, where the amplified modulated RF signal is associated with the advertisement event.

Abstract: An example device includes a silicon substrate having a first substrate surface and a second substrate surface; a plurality of layers associated with one or more electronic components of an integrated circuit (IC), where the plurality of layers are deposited on the second substrate surface; a lithium-based battery having a plurality of battery layers deposited on the first substrate surface of the silicon substrate, where the lithium-based battery includes an anode current collector and a cathode current collector; a first through-silicon via (TSV) passing through the silicon substrate and providing an electrical connection between the anode current collector and the plurality of layers associated with the one or more electronic components of the IC; and a second TSV passing through the silicon substrate and providing an electrical connection between the cathode current collector and the plurality of layers associated with the one or more electronic components of the IC.

Abstract: An electrochemical battery can include electrodes (a cathode and an electrode) arranged on respective surfaces of an electrolyte. The electrodes and electrolyte can each be solid state films that can be layered on top of one another to create a stacked structure disposed on a substrate. A polymeric sealant material can be applied over and around the battery stack and a moisture barrier can be formed over the sealant material to thereby prevent moisture from reaching the battery. Conductive terminals electrically coupled to the cathode and anode, respectively, can be formed on a second side of the substrate. As such, the battery can be flip-chip mounted to corresponding mounting pads and thereby connected to other electronics that can receive power from the battery.

Abstract: An example device includes a silicon substrate having a first substrate surface and a second substrate surface; a plurality of layers associated with one or more electronic components of an integrated circuit (IC), where the plurality of layers are deposited on the second substrate surface; a lithium-based battery having a plurality of battery layers deposited on the first substrate surface of the silicon substrate, where the lithium-based battery includes an anode current collector and a cathode current collector; a first through-silicon via (TSV) passing through the silicon substrate and providing an electrical connection between the anode current collector and the plurality of layers associated with the one or more electronic components of the IC; and a second TSV passing through the silicon substrate and providing an electrical connection between the cathode current collector and the plurality of layers associated with the one or more electronic components of the IC.

Abstract: A wearable device includes a sensor, auxiliary electronics, a primary power supply configured to harvest radio frequency (RF) radiation received from an external reader and use the harvested RF radiation to power the sensor, and an auxiliary power supply configured to harvest energy other than that received from the external reader and use the harvested energy to supply power to the sensor and/or the auxiliary electronics. The external reader may supply less power in response to operation of the auxiliary power supply. Additionally or alternatively, in response to a determination that the auxiliary power supply is unable to supply power, the wearable device may disable all auxiliary electronics but for the sensor. In response to a determination that the primary power supply is unable to supply power but the auxiliary power supply is able to supply power, the wearable device may retain operating parameters in the memory storage unit using the auxiliary power supply.

Abstract: Methods and systems described herein relate to broadcasting an advertisement event on a wireless channel. An example method includes generating, based on data, a data signal including one or more data packets, where each of the one or more data packets is a non-connectable and non-scannable data packet; generating an RF signal using an oscillator circuit; directly modulating the RF signal, based on the data signal, to generate a modulated RF signal; amplifying the modulated RF signal; broadcasting the amplified modulated RF signal on the wireless channel, where the amplified modulated RF signal is associated with the advertisement event.

Abstract: An eye-mountable device can include a transparent material and a substrate at least partially embedded in the transparent material. The transparent material can have a concave surface and a convex surface, with the concave surface configured to removably mount the eye-mountable device on a corneal surface overlaying a pupil. A light source can be disposed on the substrate and configured to emit light through the concave surface and towards the corneal surface such that the emitted light is viewable through the pupil. The light source can be controlled by circuitry disposed on the substrate. The circuitry can be configured to modulate the light emitted by the light source to provide modulated light.

Abstract: An example device includes a silicon substrate having a first substrate surface and a second substrate surface; a plurality of layers associated with one or more electronic components of an integrated circuit (IC), where the plurality of layers are deposited on the second substrate surface; a lithium-based battery having a plurality of battery layers deposited on the first substrate surface of the silicon substrate, where the lithium-based battery includes an anode current collector and a cathode current collector; a first through-silicon via (TSV) passing through the silicon substrate and providing an electrical connection between the anode current collector and the plurality of layers associated with the one or more electronic components of the IC; and a second TSV passing through the silicon substrate and providing an electrical connection between the cathode current collector and the plurality of layers associated with the one or more electronic components of the IC.

Abstract: A body-mountable device includes a flexible substrate configured for mounting to a skin surface. The flexible substrate is configured to be adhered or otherwise mounted to the skin in a manner that minimally impacts activities of the body. The device includes a flexible display configured to provide indications to a user, e.g., indications of sensor readings, medical alerts, or operational states of the device. The display could be operated on a very low power budget, e.g., the display could be operated intermittently. In some examples, the display could include an e-paper display or similar low power display elements. In some examples, elements of the display, e.g., electrodes of a multi-segment display, could be formed on the flexible substrate such that additional elements of the display, e.g., a layer of display medium and a layer of transparent conductor, could be adhered or otherwise attached to the formed elements.

Abstract: Systems and methods are described that relate to a plurality of sensors configured to measure a physiological parameter. Each sensor of the plurality of sensors may be removably attached to an exterior surface of a living body. A controller may be configured to receive sensor data from the plurality of sensors. The sensor data may be indicative of the physiological parameter. The controller may correlate the sensor data to provide correlated data that is indicative of the physiological parameter. Based at least on the correlated data, the controller may determine a health state. The controller may further provide an indication based on the determined health state.

Abstract: A flexible, body-mountable analyte sensing device includes a flexible substrate configured for mounting to skin of a living body. The sensing device additionally includes a sensor probe attached to the flexible substrate and configured to penetrate the skin such that a sensor disposed on the end of the sensor probe can be exposed to an analyte in interstitial fluid. The sensor could be an electrochemical sensor that includes two or more electrodes disposed at the end of the sensor probe and configured to electrochemically detect the analyte. The sensing device is configured to display detected concentrations or other information about the analyte in the interstitial fluid. The flexible substrate of the sensing device is configured to be adhered or otherwise mounted to the skin in a manner that minimally impacts activities of the living body.

Abstract: A flexible, body-mountable analyte sensing device includes a flexible substrate configured for mounting to skin of a living body. The sensing device additionally includes optical fiber attached to the flexible substrate and configured to penetrate the skin such that an analyte-sensitive substance disposed on the end of the optical fiber can detect an analyte in interstitial fluid. A color, fluorescence intensity, or other optical property of the analyte-sensitive substance is related to the concentration or other property of the analyte. Light reflected, scattered, fluorescently emitted, or otherwise emitted from the analyte-sensitive substance is transmitted via the optical fiber and detected by a light sensor on the flexible substrate. Such emitted light can be emitted in response to illumination of the analyte-sensitive substance via the optical fiber. The sensing device is configured to wirelessly indicate detected concentrations or other information about the analyte in the interstitial fluid.

Abstract: A body-mountable device includes a flexible substrate configured for mounting to a skin surface. The device includes an input component configured to receive inputs from a user, e.g., finger presses, swipes, motions of the sensing platform, or gestures. Received inputs could include calibration data, for example, known values of a sensed property to compare with corresponding values obtained by a sensor of the device. The device can additionally include an output component configured to provide outputs to a user. Outputs could include indications of sensor readings, medical alerts, or operational states of the device. The flexible substrate of the device is configured to be adhered or otherwise mounted to the skin in a manner that minimally impacts activities of the body.

Abstract: A flexible, body-mountable analyte sensing device includes a flexible substrate configured for mounting to skin of a living body. The sensing device additionally includes a sensor probe attached to the flexible substrate and configured to penetrate the skin such that a sensor disposed on the sensor probe can detect an analyte in interstitial fluid. The sensor probe can include an elongate extension of the flexible substrate. The sensor can be, for example, an electrochemical sensor or an optical sensor. The sensing device is configured to wirelessly indicate detected concentrations or other information about the analyte in the interstitial fluid. The flexible substrate of the sensing device is configured to be adhered or otherwise mounted to the skin in a manner that minimally impacts activities of the living body.

Abstract: An electrochemical sensor of a flexible, body-mountable analyte sensing device is provided. The electrochemical sensor is disposed on a flexible sensor probe that is configured to penetrate the skin such that the electrochemical sensor disposed on the sensor probe can detect an analyte in interstitial fluid. The electrochemical sensor is made sensitive to the analyte by disposing a substance that selectively binds to reacts with, catalyzes a reaction of, or otherwise selectively interacts with the analyte. The substance is localized by crosslinking on the surface of an electrode and/or by being disposed in a polymer layer disposed on the electrode. The polymer layer can be a hydrogel. Further, a hydrogel layer can be formed on the sensor probe to protect elements of the sensor probe and to increase the biocompatibility of the sensor probe.

Abstract: Disclosed herein are example methods, systems, and devices involving electrically-conductive wires, such as standard IC bonding wires, that are configured so as to operate as inertial sensors. One embodiment of the disclosed methods, systems, and devices may take the form of a system that includes a first electrically-conductive wire and a second electrically-conductive wire, where the first wire and the second wire are electromagnetically coupled; and a sensor oscillator, where the sensor oscillator is coupled to the first wire and the second wire, and where the sensor oscillator is configured to output a sensor-oscillator signal that is frequency modulated based on a change in complex impedance between the first wire and the second wire, where the change in complex impedance is due to a displacement of the first wire relative to the second wire.

Abstract: An electrochemical battery can include electrodes (a cathode and an electrode) arranged on respective surfaces of an electrolyte. The electrodes and electrolyte can each be solid state films that can be layered on top of one another to create a stacked structure disposed on a substrate. A polymeric sealant material can be applied over and around the battery stack and a moisture barrier can be formed over the sealant material to thereby prevent moisture from reaching the battery. Conductive terminals electrically coupled to the cathode and anode, respectively, can be formed on a second side of the substrate. As such, the battery can be flip-chip mounted to corresponding mounting pads and thereby connected to other electronics that can receive power from the battery.