Patent ID: 6903860

Claim:
A vacuum packaged array of electromechanical micromirror devices comprising: a device substrate having a 1st surface and a 2nd surface; control circuitry disposed on said 1st surface of said device substrate; an array of micromirror sections disposed on said 2nd surface of said device substrate, wherein each said micromirror section comprises: a micromirror; at least 1 support structure for supporting said micromirror; and at least 1 addressing electrode for actuating said micromirror; a plurality of electrically conductive routing lines integral with said device substrate that connects said control circuitry to said at least 1 addressing electrode; a 1st plurality of metallic terminals disposed on said 1st surface of said device substrate that are electrically connected with said control circuitry; a 1st packaging substrate having a 1st surface and a 2nd surface; a 2nd plurality of metallic terminals disposed on said 1st surface of said 1st packaging substrate; a plurality of solder balls electrically connecting said 1st plurality of metallic terminals to said 2nd plurality of metallic terminals and thereby mounting said device substrate on said 1st packaging substrate; a 2nd packaging substrate being adhered to said 1st surface of said 1st packaging substrate by a glass frit bonding line that surrounds said device substrate; and an evacuated region bounded by said packaging substrates and said glass frit bonding line.