Abstract: An example continuous glucose monitor includes a printed circuit board (“PCB”) having first and second outer layers and an inner layer; a semiconductor package having a plurality of pins coupled to the first outer layer of the PCB; an electrical contact formed on the second outer layer of the PCB; a trace having a first portion disposed on the first outer layer, a second portion disposed on the inner layer, and a third portion disposed on the second outer layer, the trace having a first end coupled to a first pin of the plurality of pins and a second end coupled to the electrical contact; and an encapsulant disposed around a perimeter of the semiconductor package, the encapsulant covering the plurality of pins, the first portion of the sensor trace, the third portion of the sensor trace, wherein an upper surface of the semiconductor package remains exposed.

Abstract: An example continuous glucose monitor includes a printed circuit board (“PCB”) having first and second outer layers and an inner layer, the inner layer disposed between the first and second outer layers; a semiconductor package having four corner portions and a plurality of pins, the semiconductor package coupled to the first outer layer of the PCB via the plurality of pins; an electrical ground plane formed on the PCB and coupled to at least one pin at each of a first, second, and third of the four corner portions, and not coupled to any pins at a fourth corner portion; an electrical contact for a sensor wire formed on the second outer layer of the PCB; a sensor trace having a first portion disposed on the first outer layer, a second portion disposed on the inner layer, and a third portion disposed on the second outer layer, the sensor trace having a first end coupled to a first pin of the plurality of pins and a second end coupled to the electrical contact for the sensor wire, the first pin at the fourth co

Abstract: An eye-mountable device includes a transparent polymer and a structure embedded in the transparent polymer. The transparent polymer defines a posterior side and an anterior side of the eye-mountable device, and the transparent polymer has a concave surface and a convex surface. The structure includes a substrate, an antenna comprising a conductive loop, and a sensor that is configured to detect an analyte. The substrate includes a loop portion and a tab portion, where the loop portion has an outer circumference defined by an outer diameter and an inner circumference defined by an inner diameter, and where the tab portion extends from the inner circumference of the loop portion towards a center of the loop portion. The conductive loop is disposed on the loop portion of the substrate between the inner circumference and outer circumference, and the sensor is disposed on the tab portion of the substrate.

Abstract: An eye-mountable device includes a transparent polymer and a structure embedded in the transparent polymer. The transparent polymer defines a posterior side and an anterior side of the eye-mountable device, and the transparent polymer has a concave surface and a convex surface. The structure includes a substrate, an antenna comprising a conductive loop, and a sensor that is configured to detect an analyte. The substrate includes a loop portion and a tab portion, where the loop portion has an outer circumference defined by an outer diameter and an inner circumference defined by an inner diameter, and where the tab portion extends from the inner circumference of the loop portion towards a center of the loop portion. The conductive loop is disposed on the loop portion of the substrate between the inner circumference and outer circumference, and the sensor is disposed on the tab portion of the substrate.

Abstract: An eye-mountable device includes a transparent polymer and a structure embedded in the transparent polymer. The transparent polymer defines a posterior side and an anterior side of the eye-mountable device, and the transparent polymer has a concave surface and a convex surface. The structure includes a substrate, an antenna comprising a conductive loop, and a sensor that is configured to detect an analyte. The substrate includes a loop portion and a tab portion, where the loop portion has an outer circumference defined by an outer diameter and an inner circumference defined by an inner diameter, and where the tab portion extends from the inner circumference of the loop portion towards a center of the loop portion. The conductive loop is disposed on the loop portion of the substrate between the inner circumference and outer circumference, and the sensor is disposed on the tab portion of the substrate.

Abstract: An eye-mountable device includes a transparent polymer and a structure embedded in the transparent polymer. The transparent polymer defines a posterior side and an anterior side of the eye-mountable device, and the transparent polymer has a concave surface and a convex surface. The structure includes a substrate, an antenna comprising a conductive loop, and a sensor that is configured to detect an analyte. The substrate includes a loop portion and a tab portion, where the loop portion has an outer circumference defined by an outer diameter and an inner circumference defined by an inner diameter, and where the tab portion extends from the inner circumference of the loop portion towards a center of the loop portion. The conductive loop is disposed on the loop portion of the substrate between the inner circumference and outer circumference, and the sensor is disposed on the tab portion of the substrate.