STACKED SEMICONDUCTOR DIES INCLUDING INDUCTORS AND ASSOCIATED METHODS
First Claim
1. A semiconductor device comprising:
- a package substrate having an upper surface and a lower surface;
a stack of dies attached to the upper surface of the substrate, wherein the stack includes—
a first die including a front side and one or more first inductors at the front side; and
a second die disposed over and offset from the first die, the second die including a front side facing the first die and one or more second inductors at the front side of the second die, wherein one or more of the second inductors are inductively coupled to one or more first inductors;
a first plurality of wirebonds electrically coupling a first plurality of substrate bond pads on the upper surface of the substrate to a first plurality of die bond pads on the front side of the first die; and
a second plurality of wirebonds electrically coupling a second plurality of substrate bond pads on the lower surface of the substrate to a second plurality of die bond pads on the front side of the second die.
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Accused Products
Abstract
Semiconductor devices, systems including semiconductor devices, and methods of making and operating semiconductor devices. Such semiconductor devices can comprise a substrate, a first die mounted to the substrate, and a second die mounted to the first die in an offset position. The first die having first inductors at a first active side of the first die, the second inductors at a second active side of the second die, and a least one first inductor is proximate and inductively coupled to a second inductor. First interconnects electrically couple the substrate to the first die, and second interconnects electrically couple the second die to the substrate. The first interconnects extend from an upper surface of the substrate to the first active side, and the second interconnects extend from the second active side to the lower surface of the substrate.
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Citations
18 Claims
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1. A semiconductor device comprising:
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a package substrate having an upper surface and a lower surface; a stack of dies attached to the upper surface of the substrate, wherein the stack includes— a first die including a front side and one or more first inductors at the front side; and a second die disposed over and offset from the first die, the second die including a front side facing the first die and one or more second inductors at the front side of the second die, wherein one or more of the second inductors are inductively coupled to one or more first inductors; a first plurality of wirebonds electrically coupling a first plurality of substrate bond pads on the upper surface of the substrate to a first plurality of die bond pads on the front side of the first die; and a second plurality of wirebonds electrically coupling a second plurality of substrate bond pads on the lower surface of the substrate to a second plurality of die bond pads on the front side of the second die. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A semiconductor device, comprising:
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a substrate having an upper surface and a lower surface; a first die mounted to the substrate and including a first active side and first inductors at the first active side; a second die mounted to the first die in an offset position such that a portion of the second die extends beyond the first die, wherein the second die includes a second active side facing the first die and second inductors at the second active side of the second die, and wherein one or more of the first inductors is inductively coupled to one or more corresponding second inductors; first interconnects electrically coupling the substrate to the first die; and second interconnects electrically coupling and extending from the second active side of the second die to the lower surface of substrate; and a mold material encapsulating only a portion of the second interconnects. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification