Packaged semiconductor chips with array
AssigneeTessera, Inc.
InventorsAndrey Grinman, David Ovrutsky, Charles Rosenstein, Vage Oganesian
Life of this patent
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Abstract
A chip-sized, wafer level packaged device including a portion of a semiconductor wafer including a device, at least one packaging layer containing silicon and formed over the device, a first ball grid array formed over a surface of the at least one packaging layer and being electrically connected to the device and a second ball grid array formed over a surface of the portion of the semiconductor wafer and being electrically connected to the device.
Claims19
A method of manufacture of a chip-sized, wafer level packaged device comprising:
- attaching a first semiconductor layer to a second semiconductor layer, the first semiconductor layer including at least one device and electrical circuitry including first and second bond pads adjacent to a surface of the first semiconductor layer facing the second semiconductor layer;
- forming a first opening through the second semiconductor layer extending to at least a portion of the first bond pad;
- forming a first monolithic plated conductor through said first opening and extending to the at least a portion of the first bond pad at the first opening;
- forming a second opening through the first semiconductor layer to at least a portion of the second bond pad;
- and
- forming a second monolithic plated conductor through second said opening and on the at least a portion of the second bond pad.
A method of manufacture of a chip-sized wafer level packaged device comprising:
- attaching a first semiconductor layer to a second semiconductor layer, the first semiconductor layer including at least one device and electrical circuitry including first and second bond pads adjacent to a surface of the first semiconductor layer facing the second semiconductor layer;
- forming a first opening through the second semiconductor layer to at least a portion of the first bond pad;
- forming a first monolithic plated conductor through said first opening and on the at least a portion of the first bond pad;
- and
- forming a second opening through the first semiconductor layer to at least a portion of the second bond pad;
- forming a second monolithic plated conductor through second said opening and on the at least a portion of the second bond pad;
- forming a first compliant layer over said first semiconductor layer and underlying said first monolithic plated conductor;
- forming a second compliant layer over said first semiconductor layer and underlying said second monolithic plated conductor;
- and
- forming a third conductor over said second compliant layer and underlying said second monolithic plated conductor.
A method of manufacture of a chip-sized wafer level packaged device comprising;
- attaching a first semiconductor layer to a second semiconductor layer, the first semiconductor layer including at least one device and electrical circuitry including first and second bond pads adjacent to a surface of the first semiconductor layer facing the second semiconductor layer, wherein said first semiconductor layer includes a material having thermal expansion characteristics similar to those of said device;
- forming a first opening through the second semiconductor layer to at least a portion of the first bond pad;
- forming a first monolithic plated conductor through said first opening and on the at least a portion of the first bond pad;
- forming a second opening through the first semiconductor layer to at least a portion of the second bond pad;
- forming a second monolithic plated conductor through second said opening and on the at least a portion of the second bond pad;
- forming a first compliant layer on said first semiconductor layer and underlying said first monolithic plated conductor;
- and
- forming a second compliant layer on said second semiconductor layer and underlying said second monolithic plated conductor.
A method of manufacture of stacked chip-sized, wafer level packaged devices comprising:
- providing at least first and second chip-sized wafer level packaged devices, wherein each of the first and second packaged devices is manufactured by:
- attaching a first semiconductor layer to a second semiconductor layer, the first semiconductor layer including at least one device and electrical circuitry including first and second bond pads adjacent to a surface of the first semiconductor layer facing the second semiconductor layer;
- forming a first opening through the second semiconductor layer extending to at least a portion of the first bond pad;
- forming a first monolithic plated conductor through said first opening and extending to the at least a portion of the first bond pad at the first opening;
- forming a second opening through the first semiconductor layer to at least a portion of the second bond pad;
- and
- forming a second monolithic plated conductor through second said opening and on the at least a portion of the second bond;
- and
- electrically coupling said first monolithic plated conductor of said first device to said second monolithic plated conductor of said second device.
Dependencies are inferred from the claim text.