Patent ID: 7449773
Filing Date: 2008-11-11
Classification: B81C,G02B,H01L,Y10T

Abstract:
1. A device package comprising: a first ceramic substrate that comprises a concaved surface forming a cavity in the first ceramic substrate; a second ceramic substrate layer comprising an opening, the second ceramic substrate layer being laminated to the first ceramic substrate with a heater and a bonding material therebetween; wherein the opening in the second ceramic substrate layer is aligned to the cavity in the first ceramic substrate; and the heater is disposed around a periphery of the cavity between the first ceramic substrate and the second ceramic substrate layer; a microelectromechanical device disposed in the cavity; a light transmissive substrate disposed on a surface of the second ceramic substrate layer and enclosing the microelectromechanical device within the cavity; and a sealing medium disposed between the second ceramic substrate layer and the light transmissive substrate, wherein the heater is in thermal connection with the sealing medium through the bonding material and the second ceramic substrate layer, such that the heater is capable of melting the sealing medium.