Pressure sensitive keys

A method of normalizing pressure inputs to multiple areas of a key of a keyboard, the method comprising:

• receiving a first pressure input applied to a first location of a flexible contact layer of the key resulting in force sensitive ink disposed on the underside of the flexible contact layer in a first area contacting a sensor substrate having one or more conductors;
• and
• receiving a second pressure input applied to a second location of the flexible contact layer of the key resulting in the force sensitive ink disposed on the underside of the flexible contact layer in a second area contacting the sensor substrate, the second pressure input being less pressure than the first pressure input, the force sensitive ink in the second area having a higher conductivity than the force sensitive ink in the first area the first area and the second area being configured to normalize signals generated at the first area and the second area.

A keyboard comprising multiple pressure sensitive keys configured to initiate inputs of a computing device, each of the multiple pressure sensitive keys comprising a flexible contact layer spaced apart from a sensor substrate by a spacer layer and having a force sensitive ink disposed on the underside of the flexible contact layer, the flexible contact layer configured to flex in response to an application of pressure such that the force sensitive ink contacts the sensor substrate to initiate an input, for a computing device, associated with the pressure sensitive key, the sensor substrate having one or more conductors that are configured to be contacted by the force sensitive ink, a first key of multiple keys being configured to contact the sensor substrate using the force sensitive ink and a second key of the multiple keys being configured to contact the sensor substrate using the force sensitive ink, the force sensitive ink at the second key having a higher conductivity than the force sensitive ink at the first key, the force sensitive ink at the first key and the force sensitive ink at the second key being configured to normalize signals generated at the first key and the second key.