Package-on-package semiconductor assembly having bottom device confined by dielectric recess
First Claim
1. A package-on-package semiconductor assembly, comprising:
- a core base that includes a dielectric layer, a resin sealant layer and an array of metal posts, wherein (i) the dielectric layer has a recess extending from a top surface of the dielectric layer, (ii) the resin sealant layer is disposed over the top surface of the dielectric layer, and (iii) the metal posts are disposed in the resin sealant layer;
a first semiconductor device that includes a semiconductor chip, a re-distribution layer and a mold compound, the re-distribution layer having active pads at a bottom surface thereof and the semiconductor chip being disposed over a top surface of the re-distribution layer and electrically coupled to the active pads of the re-distribution layer and surrounded by the mold compound, wherein the first semiconductor device is laterally confined within the recess of the dielectric layer and with the active pads of the re-distribution layer attached to a floor of the recess of the dielectric layer by an adhesive;
a bottom buildup circuitry under a bottom surface of the core base, wherein the bottom buildup circuitry is electrically coupled to the active pads of the re-distribution layer of the first semiconductor device through metallized vias that extend through the adhesive and the dielectric layer and is further electrically coupled to the metal posts through additional metallized vias that extend through the dielectric layer; and
a second semiconductor device over a top surface of the core base, wherein the second semiconductor device is electrically coupled to the first semiconductor device through the metal posts and the bottom buildup circuitry.
1 Assignment
0 Petitions
Accused Products
Abstract
A package-on-package semiconductor assembly is characterized by a semiconductor device positioned in a dielectric recess of a core base and surrounded by an array of metal posts. The recess in the core provides lateral displacement control between the device and the metal posts, and the minimal height of the metal posts needed for the vertical connection between two both opposite sides of the core base can be reduced by the amount equal to the depth of the recess. Further, another semiconductor device is disposed over a top surface of the core base and is electrically coupled to the semiconductor device in the dielectric recess through a buildup circuitry under a bottom surface of the core base.
-
Citations
7 Claims
-
1. A package-on-package semiconductor assembly, comprising:
-
a core base that includes a dielectric layer, a resin sealant layer and an array of metal posts, wherein (i) the dielectric layer has a recess extending from a top surface of the dielectric layer, (ii) the resin sealant layer is disposed over the top surface of the dielectric layer, and (iii) the metal posts are disposed in the resin sealant layer; a first semiconductor device that includes a semiconductor chip, a re-distribution layer and a mold compound, the re-distribution layer having active pads at a bottom surface thereof and the semiconductor chip being disposed over a top surface of the re-distribution layer and electrically coupled to the active pads of the re-distribution layer and surrounded by the mold compound, wherein the first semiconductor device is laterally confined within the recess of the dielectric layer and with the active pads of the re-distribution layer attached to a floor of the recess of the dielectric layer by an adhesive; a bottom buildup circuitry under a bottom surface of the core base, wherein the bottom buildup circuitry is electrically coupled to the active pads of the re-distribution layer of the first semiconductor device through metallized vias that extend through the adhesive and the dielectric layer and is further electrically coupled to the metal posts through additional metallized vias that extend through the dielectric layer; and a second semiconductor device over a top surface of the core base, wherein the second semiconductor device is electrically coupled to the first semiconductor device through the metal posts and the bottom buildup circuitry. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A package-on-package semiconductor assembly, comprising:
-
a core base that includes a dielectric layer, a resin sealant layer, and an array of metal posts, wherein (i) the dielectric layer has a recess extending from a top surface of the dielectric layer and an array of through-holes extending through the dielectric layer at a floor of the recess, (ii) the resin sealant layer is disposed over the top surface of the dielectric layer, and (iii) the metal posts are disposed in the resin sealant layer; a first semiconductor device that includes a semiconductor chip, a re-distribution layer and a mold compound, the re-distribution layer having active pads at a bottom surface thereof and the semiconductor chip being disposed over a top surface of the re-distribution layer and electrically coupled to the active pads of the re-distribution layer and surrounded by the mold compound, wherein the first semiconductor device is laterally confined within the recess of the dielectric layer and with the active pads of the re-distribution layer attached to the floor of the recess of the dielectric layer by an adhesive, wherein the first semiconductor device has protruded bumps that extend from selected ones of the active pads of the re-distribution layer through the through-holes at the floor; a bottom buildup circuitry under a bottom surface of the core base, wherein the bottom buildup circuitry is electrically coupled to the protruded bumps of the first semiconductor device and is further electrically coupled to the metal posts through metallized vias that extend through the dielectric layer; and a second semiconductor device over a top surface of the core base, wherein the second semiconductor device is electrically coupled to the first semiconductor device through the metal posts and the bottom buildup circuitry. - View Dependent Claims (7)
-
Specification