Semiconductor package having interposer with openings containing conductive layer

1. A semiconductor package comprising:

a first structural body having a first surface and a second surface which faces away from the first surface, and formed with first connection members on the first surface;

a second structural body placed over the first structural body, and formed with second connection members on a surface which faces the first surface of the first structural body;

an interposer interposed between the first structural body and the second structural body, and having a body which is formed with a plurality of openings into which one of the first connection members is inserted into a single opening and one of the second connection members is inserted into the single opening among the plurality of openings and a conductive layer which is formed to fill the plurality of openings;

an encapsulation member formed to seal the first surface of the first structural body; and

external connection terminals formed on the second surface of the first structural body.

2. The semiconductor package according to claim 1 , wherein each of the first structural body and the second structural body comprises a semiconductor device or a printed circuit board.

3. The semiconductor device according to claim 2 , wherein the semiconductor device comprises any one of an image sensor, a memory semiconductor, a system semiconductor, a passive device, an active device and a sensor semiconductor.

4. The semiconductor package according to claim 2 , wherein the printed circuit board comprises any one of a module substrate, a package substrate, a flexible substrate and a main board.

5. The semiconductor package according to claim 1 ,

wherein the first structural body has first electrode pads on the first surface, and

wherein the first connection members are formed on the first electrode pads.

6. The semiconductor package according to claim 1 ,

wherein the second structural body has second electrode pads on the surface which faces the first surface of the first structural body, and

wherein the second connection members are formed on the second electrode pads.

7. The semiconductor package according to claim 1 , wherein the first and second connection members comprise any ones of bumps and conductive posts.

8. The semiconductor package according to claim 1 , wherein the first and second connection members have the sectional shape of any ones of a triangle, an inverted triangle and a quadrangle.

9. The semiconductor package according to claim 1 , further comprising:

adhesives respectively formed between the first structural body and the interposer and between the second structural body and the interposer.

10. The semiconductor package according to claim 1 , wherein the body of the interposer is formed of any one of a dielectric substance, a thermoplastic substance, an epoxy substance, a resin substance and a photoresist substance.

11. The semiconductor package according to claim 1 , wherein the conductive layer of the interposer is formed of a substance which has a relatively smaller strength than the first and second connection members.

12. The semiconductor package according to claim 11 , wherein the conductive layer of the interposer is formed of any one of Sn, an Sn—Ag alloy, an Sn—Bi alloy and an Sn—In alloy.

13. The semiconductor package according to claim 11 , wherein the first and second connection members are formed of any one of Cu, Ni and Au.

14. The semiconductor package according to claim 1 , wherein the first and second connection members have a width smaller than a width of each of the openings formed in the body of the interposer.