Dual laminate package structure with embedded elements
View Patent ↗An interconnect structure (i.e., an interposer) which is mounted and electrically connected to a bottom semiconductor package substrate either prior or subsequent to such bottom substrate being populate with one or more electronic components. Subsequently, a top semiconductor package substrate which may also be populated with one or more electronic components is mounted to the interposer, such that all of the electronic components are disposed between the top and bottom interposers. Thereafter, a suitable mold compound is injected between the top and bottom substrates, the mold compound flowing about the electronic components, between the BGA joints, and at least partially about the interposer, thus helping to lock the interposer in place in the completed semiconductor package.
1. A semiconductor package comprising:
a bottom substrate including a plurality of contacts disposed thereon:
at least one electronic component attached to the bottom substrate and electrically connected to at least one the contacts thereof;
at least first and second interposer segments electrically connected to at least some of the contacts of the bottom substrate;
a top substrate including a plurality of contacts disposed thereon, at least some of the contacts of the top substrate being electrically connected to each of the first and second interposer segments; and
a unitary package body at least partially encapsulating the top and bottom substrates, the first and second interposer segments and the electronic component such that at least portions of the bottom substrate and the top substrate are not covered by the package body.
2. The semiconductor package of claim 1 wherein the package body defines a peripheral side surface, and at least a portion of each of the first and second interposer segments is exposed in the side surface of the package body.
3. The semiconductor package of claim 1 wherein a plurality of electronic components are attached to the bottom substrate in a stacked arrangement, each of the electronic components being electrically connected to at least one of the contacts of the bottom substrate.
4. The semiconductor package of claim 1 wherein the first and second interposer segments each comprise:
an interposer body;
a plurality of pads disposed on the interposer body, at least some of the pads being electrically connected to respective ones of at least some of the contacts of the top substrate, and at least some of the pads being electrically connected to respective ones of at least some of the contacts of the bottom substrate; and
a plurality of conductive vias extending through the interposer body and electrically connecting corresponding pairs of the pads to each other.
5. The semiconductor package of claim 4 wherein at least some of the pads of each of the first and second interposer segments are electrically connected to respective ones of the contacts of the bottom substrate by solder balls, and at least some of the pads of each of the first and second interposer segments are electrically connected to respective ones of the contacts of the top substrate by solder balls.
6. The semiconductor package of claim 4 wherein:
the bottom and top substrates each define multiple peripheral edge segments;
the interposer body of each of the first and second interposer segments further defines at least one side surface segment; and
the side surface segment of each of the first and second interposer segments extends in generally co-planar relation respective ones of the peripheral edge segments of the bottom and top substrates.
7. The semiconductor package of claim 1 further comprising at least one electronic component attached to the top substrate and electrically connected to at least some or the contacts of the top substrate.
8. The semiconductor package of claim 1 wherein:
the bottom and top substrates each define multiple peripheral edge segments;
the contacts of the bottom substrate are segregated into at least two sets which extend along respective ones of at least two of the peripheral edge segments of the bottom substrate:
the contacts of the top substrate are segregated into at least two sets which extend along respective ones of at least two of the peripheral edge segments of the top substrate; and
the first and second interposer segments are each electrically connected to respective ones of the sets of the contacts of the bottom substrate and the sets of the contacts of the top substrate.
9. The semiconductor package of claim 1 wherein the electronic component comprises at least one semiconductor die which is electrically connected to at least some of the contacts of the bottom substrate by conductive wires.
10. The semiconductor package of claim 1 wherein at least some of the contacts of the bottom substrate include a solder bump formed thereon.
11. A semiconductor package comprising:
a bottom substrate defining multiple peripheral edge segments;
a top substrate defining multiple peripheral edge segments:
at least one electronic component electrically connected to the bottom substrate;
at least first and second interposer segments electrically connecting the bottom substrate to the top substrate, each of the first and second interposer segments defining at least one side surface segment which extends in generally co-planar relation to respective ones of the peripheral edge segments of the bottom and top substrates; and
a unitary package body at least partially encapsulating the top and bottom substrates, the first and second interposer segments and the electronic component such that at least portions of the bottom substrate and the top substrate are not covered by the package body.
12. The semiconductor package of claim 11 wherein at least one electronic component is electrically connected to the top substrate.
13. The semiconductor package of claim 11 further comprising a third interposer segment electrically connecting the bottom substrate to the top substrate.
14. The semiconductor package of claim 13 wherein:
the bottom substrate includes a plurality of contacts which are segregated into at least three sets, with two of the sets extending along respective ones of at least two of the peripheral edge segments of the bottom substrate and one of the sets extending between the two remaining sets;
the top substrate includes a plurality of contacts which are segregated into at least three sets with two of the sets extending along respective ones of at least two of the peripheral edge segments of the top substrate and one of the sets extending between the two remaining sets; and
the separate first, second and third interposer segments are electrically connected to respective ones of the sets of the contacts of the bottom substrate and the sets of the contacts of the top substrate, the third segment of the interposer extending between the first and second segments thereof.
15. The semiconductor package of claim 11 wherein the first and second interposer segments each comprise:
an interposer body which defines the at least one side surface segment:
a plurality of pacts disposed on the interposer body, at least some of the pads being electrically connected to the top substrate, and at least some of the pads being electrically connected to the bottom substrate; and
a plurality of conductive vias extending through the interposer body and electrically connecting corresponding pairs of the pads to each other.
16. The semiconductor package of claim 15 wherein at least some of the pacts are electrically connected to the bottom substrate by solder balls, and at least some of the pads are electrically connected to the top substrate by solder balls.
17. The semiconductor package of claim 11 wherein the electronic component comprises at least one semiconductor die which is electrically connected to the bottom substrate by conductive wires.
18. The semiconductor package of claim 11 wherein:
the bottom substrate includes a plurality of contacts which are segregated into at least two sets which extend along, respective ones of at least two of the peripheral edge segments of the bottom substrate;
the top substrate includes a plurality of contacts which are segregated into at least two sets which extend along respective ones of at least two of the peripheral edge segments of the top substrate; and
the separate first and second interposer segments are each electrically connected to respective ones of the sets of the contacts of the bottom substrate and the sets of the contacts of the top substrate.
19. A semiconductor package comprising:
a bottom substrate;
at least one electronic component electrically connected to the bottom substrate;
at least first and second interposer segments electrically connected to the bottom substrate;
a top substrate electrically connected to the first and second interposer segments; and
a unitary package body defining a peripheral side surface, the package body at least partially encapsulating the top and bottom substrates, the first and second interposer segments and the electronic component such that at least a portion of each of the first and second interposer segments is exposed in the side surface of the package body.
20. The semiconductor package of claim 19 wherein the first and second interposer segments each comprise:
an interposer body;
a plurality of pads disposed on the interposer body, at least some of the pads being electrically connected to the top substrate, and at least some of the pads being electrically connected to the bottom substrate; and
a plurality of conductive vias extending through the interposer body and electrically connecting corresponding pairs of the pads to each other.
21. A semiconductor package comprising:
a bottom substrate including a plurality of contacts disposed thereon;
at least one electronic component attached to the bottom substrate and electrically connected to at least one the contacts thereof;
an interposer electrically connected to at least some of the contacts of the bottom substrate through the use of solder balls;
a top substrate including a plurality of contacts disposed thereon, at least some of the contacts of the top substrate being electrically connected to the interposer through the use of solder balls; and
a unitary package body at least partially encapsulating the top and bottom substrates, the interposer, the electronic component and the solder balls such that at least portions of the bottom substrate and the top substrate are not covered by the package body.
22. The semiconductor package of claim 21 wherein the package body defines a peripheral side surface, and at least a portion of the interposer is exposed in the side surface of the package body.
23. The semiconductor package of claim 21 wherein a plurality of electronic components are attached to the bottom substrate in a stacked arrangement, each of the electronic components being electrically connected to at least one of the contacts of the bottom substrate.