IC package lid for dose enhancement protection
AssigneeHoneywell Inc.
InventorsThomas J. Dunaway, Richard K. Spielberger
Life of this patent
Estimating the term…
Abstract
An integrated circuit package for use in radiation environments includes a base for receiving an integrated circuit die and has a peripheral surface for receiving a lid. The lid has an inner surface facing the die that has a cladding of a low atomic number material to limit electron emission due to absorbed radiation.
Claims12
An integrated circuit package for use in radiation environments, comprising:
- a base having a die receiving location and a peripheral surface;
- a lid for receipt on said peripheral surface, said lid having an outer surface and an inner surface, said inner surface having a peripheral seal area and a die facing area, said outer surface and said peripheral seal area plated with a first metal, said die facing area having a cladding of a second metal, said second metal selected to have a low atomic number relative to an atomic number of said first metal in order to limit electron emission due to absorbed radiation;
- and
- sealing means located between said peripheral surface and said peripheral seal area.
A package for use in radiation environments for electrically connecting an integrated circuit die to an external circuit, said package comprising:
- a base having a first area for receiving said die and a second area;
- a lid having a first side, said first side having a central area facing said first area and a peripheral area for complimentary receipt on said second area of said base, said peripheral area having a coating of a first metal, said central area having a coating of a second metal, said second metal having a low atomic number relative to said first metal.
In an integrated circuit package for use in radiation environments, said package having a first surface area for receiving a die and a second surface area for receiving a lid, the improvement comprising:
- said lid having an inner surface portion facing said die, said inner surface portion having an aluminum cladding to limit electron emission due to absorbed radiation.
Dependencies are inferred from the claim text.