Methods, apparatuses and systems for sensing exposure of electronic devices to moisture

1. An electronic device, comprising:

a housing and a display defining an exterior of an electronic device and an interior of the electronic device;

an integrated circuit (IC) within the electronic device and comprising a control element;

a moisture sensor comprising at least one of an inductive sensor and a capacitance sensor, the moisture sensor being coupled to or part of the IC and associated with the control element, the moisture sensor and the control element together being configured to sense moisture within the electronic device; and

a heating element coupled to the IC and configured to generate heat in response to moisture being sensed within the electronic device.

2. The electronic device of claim 1 , the heating element comprising one or more heating traces.

3. The electronic device of claim 1 , further comprising an oscillator configured to convey a clock signal to the moisture sensor and the control element.

4. The electronic device of claim 1 , wherein the control element is programmable via a communications module of the IC.

5. The electronic device of claim 1 , the moisture sensor comprising a capacitance sensor including a shield at least partially surrounding a sense element and separated from the sense element by an air gap.

6. The electronic device of claim 1 , wherein the control element includes one or more logic circuits.

7. The electronic device of claim 1 , the moisture sensor comprising an inductive sensor including an inductive coil at least partially surrounding the IC and configured to receive a voltage pulse from the IC.

8. The electronic device of claim 7 , the IC configured to measure an electrical current response after conveying the voltage pulse to determine if moisture is present proximate to the IC.

9. The electronic device of claim 7 , further comprising a ball grid array (BGA) package including the inductive sensor.

10. The electronic device of claim 1 , further comprising at least one moisture resistant element coating at least a portion of the moisture sensor.

11. A system, comprising:

an integrated circuit (IC) comprising logic calibrated for determining an occurrence of a moisture event based on a received sensor signal;

at least one capacitance sensor coupled to the IC and configured to convey the received sensor signal to the logic, the received sensor signal indicative of a measured dielectric constant proximate to the at least one capacitance sensor; and

a heating element associated with the IC.

12. The system of claim 11 , the at least one capacitance sensor being internal to the IC and configured to detect moisture proximate to the IC.

13. The system of claim 11 , the at least one capacitance sensor including a shield and a sense element external from and coupled to the IC.

14. The system of claim 13 , the shield at least partially surrounding the sense element, wherein the at least one capacitance sensor is configured to detect moisture within an air gap separating the shield and the sense element.

15. The system of claim 13 , wherein the shield is coupled to a ground voltage.

16. The system of claim 11 , the at least one capacitance sensor being configured to receive a clock signal from an oscillator.

17. A moisture sense system for use with an electronic device, comprising:

an integrated circuit (IC);

a moisture sensor having at least a portion thereof coupled to or part of the IC and comprising at least one of an inductive sensor and a capacitance sensor;

a control element in communication with the moisture sensor and configured to receive a sensor signal from the moisture sensor and convey a control signal in response to a detected moisture event; and

a heating element switchably coupled to a supply voltage and the control element and configured to generate heat in response to the detected moisture event.

18. The moisture sense system of claim 17 , the moisture sensor comprising a capacitance sensor including a shield at least partially surrounding a sensor element and separated from the sensor element by an air gap.

19. The moisture sense system of claim 18 , wherein the moisture sensor is configured to measure a dielectric constant within the air gap.

20. A method for responding to exposure of an electronic device to moisture, comprising:

measuring at least one of a change in a dielectric constant and a change in magnetic permeability within the electronic device;

determining if moisture is within the electronic device based on at least one of a measured change in dielectric constant and a measured change in magnetic permeability;

entering a moisture sense mode of the electronic device if it is determined that moisture is within the electronic device; and

activating a heating element within the electronic device if it is determined that moisture is within the electronic device.

21. The method of claim 20 , wherein measuring comprises measuring the change in dielectric constant within the electronic device with at least one capacitance sensor.

22. The method of claim 20 , wherein measuring comprises measuring the change in magnetic permeability within the electronic device with at least one inductive sensor.

23. The method of claim 20 , further comprising calibrating one or more moisture event thresholds of the electronic device based on one or more conditions.