An array of electrostatically tiltable mirrors are formed in a MEMS
structure. A first SOI wafer is etched to form an array of tiltable
plates in the silicon device layer joined to the remainder of the wafer
through pairs of torsion beams. A second SOI wafer is etched to form
cavities corresponding to the tiltable plates. A ceramic multi-chip
module (MCM) carrier is formed with multiple layers of wiring and
electrodes corresponding to the tiltable plates. The two SOI wafers
including their handle layers are bonded together. The handle layer of
the second SOI is removed, and the bonded wafers are diced into chips.
Each chip is bonded to a respective MCM carrier. Thereafter, the handle
layer of the first SOI wafer is removed to release the tiltable mirror
plates and the torsion beams. Electronic control chips may be bonded to
the MCM carrier.