Liquid proof switch array

A system comprising:

• a processor coupled to an input device, the input device including an array of sensor elements that generate signals in response to a force, and an array of spring elements corresponding to the sensor elements,
• the input device further including a bottom layer defining holes for aligning with spring elements and a top layer engaged with the bottom layer and biased away from the bottom layer upon protrusion of the spring elements through the holes in the bottom layer.

An apparatus comprising:

• a bottom layer,
• a top layer, and
• means for engaging the top and bottom layer such that upon engagement, an amount of travel is defined between the top and bottom layers.

An apparatus comprising:

• a first layer including a first set of hook-like elements,
• a second layer including a second set of hook-like elements, wherein the first and second sets of hook-like elements are engaged, thereby attaching the first layer to the second layer.