Integrated circuit package design
View Patent ↗A packaged integrated circuit including a package substrate having electrical contacts for receiving an integrated circuit. The integrated circuit is electrically connected to the electrical contacts of the package substrate. A stiffener is mounted to the package substrate, where the stiffener has a non-orthogonal cut out in which the integrated circuit is disposed. The edges of the cut out are disposed at no greater a distance from the corners of the integrated circuit than they are from the sides of the integrated circuit.
1. A packaged integrated circuit, comprising:
a package substrate having electrical contacts for receiving an integrated circuit,
the integrated circuit electrically connected to the electrical contacts of the package substrate, the integrated circuit having corners and sides,
a stiffener mounted to the package substrate, the stiffener having a non-orthogonal cut out in which the integrated circuit is disposed, the cut out having edges, the edges of the cut out disposed at no greater a distance from the corners of the integrated circuit than they are from the sides of the integrated circuit, and
a heat spreader thermally connected to the integrated circuit.
2. The packaged integrated circuit of claim 1 , wherein the edges of the cut out are disposed at a lesser distance from the corners of the integrated circuit than they are from the sides of the integrated circuit.
3. The packaged integrated circuit of claim 1 , wherein the stiffener extends to a peripheral edge of the package substrate and the heat spreader is mounted within a recessed portion at a peripheral edge of the stiffener.
4. The packaged integrated circuit of claim 1 , wherein the stiffener does not extend to a peripheral edge of the package substrate and the heat spreader is mounted within a recessed portion at the peripheral edge of the package substrate.
5. The packaged integrated circuit of claim 1 , wherein the stiffener does not extend to a peripheral edge of the package substrate and the heat spreader is mounted within an effectual recessed portion between the stiffener and the peripheral edge of the package substrate.
6. The packaged integrated circuit of claim 1 , wherein the stiffener does not extend to a peripheral edge of the package substrate and the heat spreader is mounted at the peripheral edge of the package substrate and is electrically connected to a ground contact of the package substrate.
7. The packaged integrated circuit of claim 1 , wherein the stiffener extends to a peripheral edge of the package substrate and is electrically connected to a ground contact of the package substrate, and the heat spreader is mounted within a recessed portion at a peripheral edge of the stiffener and is electrically connected to the stiffener and is thus in electrical contact with the ground contact of the package substrate.
8. The packaged integrated circuit of claim 1 , wherein the stiffener is formed of copper.
9. The packaged integrated circuit of claim 1 , wherein the heat spreader is formed of copper.
10. The packaged integrated circuit of claim 1 , wherein the cut out of the stiffener is formed in a circular shape.
11. The packaged integrated circuit of claim 1 , wherein the cut out of the stiffener is formed in an octagonal shape.
12. A packaged integrated circuit, comprising:
a package substrate having electrical contacts for receiving an integrated circuit, and a recessed portion at a periphreal edge of the package substrate for receiving a heat spreader,
the integrated circuit electrically connected to the electrical contacts of the package substrate, the integrated circuit having corners and sides, and
the heat spreader thermally connected to the integrated circuit, the heat spreader mounted within the recessed portion at the peripheral edge of the package substrate.
13. The packaged integrated circuit of claim 12 , wherein the heat spreader is electrically connected to a ground contact of the package substrate.
14. The packaged integrated circuit of claim 12 , wherein the heat spreader is formed of copper.
15. A packaged integrated circuit, comprising:
a package substrate having electrical contacts for receiving an integrated circuit,
the integrated circuit electrically connected to the electrical contacts of the package substrate, the integrated circuit having corners and sides, and
a stiffener mounted to the package substrate, the stiffener having a non-orthogonal cut out in which the integrated circuit is disposed, the cut out having edges, the edges of the cut out disposed at no greater a distance from the corners of the integrated circuit than they are from the sides of the integrated circuit.
16. The packaged integrated circuit of claim 15 , wherein the edges of the cut out are disposed at a lesser distance from the corners of the integrated circuit than they are from the sides of the integrated circuit.
17. The packaged integrated circuit of claim 15 , wherein the cut out of the stiffener is formed in a circular shape.
18. The packaged integrated circuit of claim 15 , wherein the cut out of the stiffener is formed in an octagonal shape.
19. The packaged integrated circuit of claim 15 , wherein the stiffener is formed of copper.
20. The packaged integrated circuit of claim 15 , wherein the stiffener is electrically connected to a ground contact of the package substrate.