Patent ID: 8846430
Filing Date: 2014-09-30
Classification: B81B,G02B,Y10T

Abstract:
1. A method of making a reservoir for use with a micro electromechanical system (MEMS) device attached to a first portion of a MEMS device package and having a first surface area to be lubricated, the method comprising: forming a reservoir composition by combining a material for forming a solid component of the reservoir and at least one ingredient chosen from a lubricant, a binder forming material, a desiccant and a solvent to form a mixture; applying the reservoir composition to a second portion of the MEMS device package; curing the applied reservoir composition to form the reservoir with the solid component, the reservoir comprising a porous solid structure having a second surface area, wherein the second surface area is greater than the first surface area; applying the lubricant to the MEMS device, the solid component reversibly reacts with the lubricant; and sealing the package after applying the lubricant causing portions of the lubricant in the reservoir, on the first surface of the MEMS device, and in a vapor phase to reach a chemical equilibrium whereby the lubricant displaced from the first surface is replenished and a passivation layer is maintained on the MEMS device.