Vacuum package fabrication of integrated circuit components
AssigneeRaytheon Company, a Delware Corporation
InventorsRoland W. Gooch, Thomas R. Schimert
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AssigneeRaytheon Company, a Delware Corporation
InventorsRoland W. Gooch, Thomas R. Schimert
Estimating the term…
A method for vacuum packaging MEMS or similar devices during device fabrication comprises forming a plurality of MEMS devices (12), or similar devices, on a device wafer (10). A device sealing ring (16) is formed between the MEMS devices (12) and bonding pads (14) connected to a MEMS device. A solder adhesion layer (24) forms part of the device sealing ring (16) surrounding each MEMS or similar device (12). A lid wafer (30) is formed having a plurality of lid sealing rings (32) corresponding in number and location to the device sealing rings (16). Each lid sealing ring (32) surrounds a cavity (34). The device wafer (30) is aligned with the lid wafer (10) to align each device sealing ring (16) with the corresponding lid sealing ring (32), leaving a gap between the lid wafer (30) and the device wafer (10). The resulting assembly (50) is placed in a vacuum furnace. The vacuum furnace is evacuated and heated to a temperature sufficient to allow outgassing of all surface areas of the lid wafer (30) and the device (10). The device wafer (30) is brought into contact with the lid wafer (10) thereby creating a vacuum package over each MEMS device (12). The assembly (50) is cooled at a rate sufficient to minimize subsequent outgassing of the surfaces while minimizing thermal stresses upon the vacuum package. After the assembly (50) is cooled, each vacuum packaged MEMS device (12) is tested, and the assembly (50) is then diced into individual vacuum packaged MEMS devices (12).
A method for vacuum packaging integrated circuit devices, comprising:
A method for vacuum packaging integrated circuit devices, comprising:
A method for vacuum packaging integrated circuit devices, comprising:
A vacuum package containing one or more integrated circuit devices, comprising:
A vacuum package for integrated circuit devices, comprising:
Dependencies are inferred from the claim text.