Patent ID: 7763489
Filing Date: 2010-07-27
Classification: B81B,G02B

Abstract:
1. A process for forming a plurality of sealed micromechanical device packages, each having a fluid channel, the process comprising: forming a lid having a first bonding surface; forming an interposer having a second bonding surface and a plurality of through holes formed therein, wherein an interior surface is formed in the interposer by each of the through holes; forming a plurality of micromechanical device assemblies on a surface of a substrate, wherein the micromechanical device assemblies each include a moveable component having a first contact surface that interacts with a second contact surface during device operation; bonding the first bonding surface to the second bonding surface using a first bonding process to form a lid assembly, wherein a plurality of recessed regions are formed between the interior surfaces of the interposer and a surface of the lid assembly; positioning and aligning the plurality of formed recessed regions relative to the plurality of micromechanical device assemblies formed on the substrate so that each of the micromechanical device assemblies can be placed within a recessed region; bonding the lid assembly to the substrate using a second bonding process to form a plurality of processing regions formed between the recessed regions and a surface of the substrate, wherein one or more of the micromechanical assemblies are positioned within the processing regions; forming a plurality of fluid channels in the interposer, lid, or substrate so that a portion of at least one fluid channel is in communication with each of the processing regions; dicing the substrate and the lid assembly to form a plurality of sealed micromechanical device packages, wherein each of the sealed micromechanical device packages comprise a portion of the substrate, a portion of the lid assembly and one or more of the micromechanical device assemblies positioned within the processing region, and wherein said at least one fluid channel formed in each of the sealed micromechanical device packages that is in communication with the processing region is not exposed to an exterior of said each of the sealed micromechanical device packages; removing material from a surface of at least one of the sealed micromechanical device packages to expose a portion of a fluid channel formed in the interposer, lid or substrate; disposing a lubricant in the fluid channel through the exposed portion of the fluid channel; and sealing the exposed portion of the fluid channel.