Patent ID: 8736082

Claim:
A microstructure assembly comprising: a) a capture receptacle associated with a substrate, the capture receptacle comprising a material having an expansion coefficient, the capture receptacle comprising a cavity and comprising alignment structures in the cavity having alignment projections recessed within the cavity and extending inward from a periphery of the capture receptacle, the projections comprising: i) a large width alignment projection; and ii) a plurality of small width alignment projections; b) a key associated with a microstructure device, the key being sized to fit within the capture receptacle and being comprised of a material having an expansion coefficient greater than the expansion coefficient of the capture receptacle, the key comprising alignment receptacles spaced about a periphery and flush with an outer edge of the key to receive corresponding alignment projections, the alignment receptacles comprising: i) a large width alignment projection receptacle; and ii) a plurality of small width alignment projection receptacles; c) wherein the key is comprised of a material having a thermal expansion coefficient greater than a thermal expansion coefficient of the capture receptacle; and d) wherein the capture receptacle further comprises a plurality of medium width alignment projections, and wherein the key further comprises a plurality of medium width alignment projection receptacles.