Microelectronic device packages, stacked microelectronic device packages, and methods for manufacturing microelectronic devices
First Claim
1. A microelectronic package, comprising:
- a first substrate having a first external contact at a first surface and a first wire bond contact at a second surface opposite the first surface;
a first microelectronic die electrically connecting with the first substrate;
a second substrate having a second external contact and a second wire bond contact at a third surface facing away from the first substrate;
a second microelectronic die between the first and second substrates, the second microelectronic die being attached to the first microelectronic die;
a first wire connecting the first wire bond contact and a second wire bond contact;
a second wire connecting the second surface of the first substrate to the first microelectronic die;
a third wire connecting the third surface of the second substrate to a central area of the second microelectronic die; and
a molding compound at least partially encapsulating the first and second substrates, the first and second microelectronic dies and the wire without covering the first external contact or the second external contact.
7 Assignments
0 Petitions
Accused Products
Abstract
A stackable microelectronic package includes a first microelectronic die attached to and electrically connecting with a first substrate. A second microelectronic die is attached to the first die on one side, and to a second substrate on the other side. Electrical connections are made between the first die and the first substrate, between the second die and the second substrate, and between the first and second substrates, e.g., via wire bonding. The electrical connecting elements are advantageously encased in a molding compound. Exposed contacts on the first and/or second substrates, not covered by the molding compound, provide for electrical connections between the package, and another package stacked onto the package. The package may avoid coplanarity factors, can be manufactured using existing equipment, allows for intermediate testing, and can also offer a thinner package height.
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Citations
24 Claims
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1. A microelectronic package, comprising:
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a first substrate having a first external contact at a first surface and a first wire bond contact at a second surface opposite the first surface; a first microelectronic die electrically connecting with the first substrate; a second substrate having a second external contact and a second wire bond contact at a third surface facing away from the first substrate; a second microelectronic die between the first and second substrates, the second microelectronic die being attached to the first microelectronic die; a first wire connecting the first wire bond contact and a second wire bond contact; a second wire connecting the second surface of the first substrate to the first microelectronic die; a third wire connecting the third surface of the second substrate to a central area of the second microelectronic die; and a molding compound at least partially encapsulating the first and second substrates, the first and second microelectronic dies and the wire without covering the first external contact or the second external contact. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A microelectronic package, comprising:
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a first substrate having a first external contact at a first surface and a first wire bond contact at a second surface opposite the first surface; a first microelectronic die electrically connecting with the first substrate; a second substrate having a second external contact and a second wire bond contact at a third surface facing away from the first substrate and a fourth surface opposite the third surface, the third surface having a second external contact and a second wire bond contact, wherein the second substrate has a through opening; a second microelectronic die between the first and second substrates, the second microelectronic die being attached to the first microelectronic die and adjoining the fourth surface; a wire connecting the first wire bond contact and the second wire bond contact; a plurality of contacts on the second die to the third surface of the second substrate via the through opening; and a molding compound at least partially encapsulating the first and second substrates, the first and second microelectronic dies and the wire without covering the first external contact or the second external contact.
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9. A stackable multi-electronic die package, comprising:
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a first substrate having a first external contact facing a first direction; a second substrate spaced apart from the first substrate, the second substrate having a second external contact facing a second direction opposite the first direction; a first microelectronic die and a second microelectronic die between the first and second substrates; a spacer between the first and second dies; a first set of wires connecting the second substrate to the first substrate; a second set of wires connecting the second die to the second substrate via an opening in the second substrate; and a molding compound at least partially encapsulating the first and second substrates, the first and second dies and the first set of wires without covering the first external contact or the second external contact. - View Dependent Claims (10, 11, 12)
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13. A method for manufacturing a microelectronic package, comprising:
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attaching a first die to a first substrate having a first external contact facing a first direction and a first wire bond contact facing a second direction opposite the first direction; attaching a second die to the first die; attaching a second substrate to the second die, the second substrate having a second external contact and a second wire bond contact facing the second direction; disposing a first wire bond between the first wire bond contact at the first substrate and the second wire bond contact at the second substrate; and encapsulating the first and second wire bond contacts and the first wire bond with a molding compound without covering the first external contact or the second external contact. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification