Integrated chip scale packages
View Patent ↗Chip scale package such as a chip scale package having a chip integrated therein to provide an integrated chip scale package.
1. A chip scale package carrier, comprising:
a plurality of layers stacked together as a continuous stack disposed between, and parallel to, opposing upper and lower surfaces of the carrier to provide a monolithic carrier body having a cavity disposed within the plurality of layers, the upper and lower surfaces each including a respective one of the layers of the continuous stack;
a longitudinally extending passageway disposed between the between a selected exterior surface of the carrier body and the cavity, the passageway having a width measured in a plane perpendicular to a longitudinal axis of the passageway;
a chip disposed in the cavity;
a conductive stub extending through the passageway, the stub having a width less than that of the passageway, the stub electrically connected to the chip; and
a dielectric support layer disposed in the passageway, the dielectric support layer hermetically sealed to both the conductive stub and a selected layer disposed between the cavity and the selected exterior surface to create a hermetic seal within the passageway at a location between the exterior and cavity at the interior of the carrier.
2. The chip scale package carrier according to claim 1 , wherein the cavity includes opposing sidewalls, the sidewalls including one or more layers of the continuous stack.
3. The chip scale package carrier according to claim 1 , wherein the dielectric support is contained in the plane of the selected layer.
4. The chip scale package carrier according to claim 3 , wherein the dielectric support comprises an annular disk.
5. The chip scale package carrier according to claim 3 , wherein the dielectric support comprises a first portion embedded in the conductive stub.
6. The chip scale package carrier according to claim 3 , wherein the dielectric support comprises a second portion embedded in the carrier at the passageway.
7. The chip scale package carrier according to claim 1 , wherein the plurality of layers comprises metal.
8. The chip scale package carrier according to claim 1 , wherein the passageway comprises a plurality of conductive stubs disposed therein, each stub hermetically sealed in the passageway.
9. The chip scale package carrier according to claim 1 , wherein the upper surface includes an opening for receiving a lid.
10. A method of forming a chip scale package carrier, comprising
sequentially building up a plurality of layers, wherein the layers comprise one or more of a conductive material and a dielectric material, thereby forming a structure comprising:
a plurality of layers of the conductive material stacked together as a continuous stack disposed between, and parallel to, opposing upper and lower surfaces of the carrier to provide a monolithic carrier body having a cavity disposed within the plurality of layers, the upper and lower surfaces each including a respective one of the layers of the continuous stack;
a longitudinally extending passageway disposed between the between a selected exterior surface of the carrier body and the cavity, the passageway having a width measured in a plane perpendicular to a longitudinal axis of the passageway;
a conductive stub extending through the passageway, the stub having a width less than that of the passageway; and
a support layer disposed in the passageway, the support layer formed of the dielectric material and hermetically sealed to both the conductive stub and a selected conductive layer disposed between the cavity and the selected exterior surface to create a hermetic seal within the passageway at a location between the exterior and cavity at the interior of the carrier.
11. The method according to claim 10 , comprising providing an electronic chip within the cavity and electrically connecting an electronic chip to the stub.
12. The method according to claim 10 , wherein the cavity includes opposing sidewalls, the sidewalls including one or more layers of the conductive material.
13. The method according to claim 10 , wherein the dielectric support is contained in the plane of the selected conductive layer.
14. The method according to claim 13 , wherein the dielectric support comprises an annular disk.
15. The method according to claim 13 , wherein the dielectric support comprises a first portion embedded in the conductive stub.
16. The method according to claim 13 , wherein the dielectric support comprises a second portion embedded in the carrier at the passageway.
17. The method according to claim 10 , wherein the plurality of layers comprises metal.
18. The method according to claim 10 , wherein the passageway comprises a plurality of conductive stubs disposed therein, each stub hermetically sealed in the passageway.
19. The method according to claim 10 , wherein the upper surface includes an opening for receiving a lid.