Abstract: A package on package (PoP) structure is provided, which includes: a packaging substrate having a plurality of conductive bumps, wherein each of the conductive bumps has a metal ball and a solder material covering the metal ball; and an electronic element having a plurality of conductive posts, wherein the electronic element is stacked on the packaging substrate by correspondingly bonding the conductive posts to the conductive bumps, and each of the conductive posts and the corresponding conductive bump form a conductive element. The present invention facilitates the stacking process through butt joint of the conductive posts and the metal balls of the conductive bumps.

Abstract: A method for fabricating a semiconductor package is provided, which includes the steps of: providing a first substrate having a plurality of first conductive posts on a surface thereof and providing a second substrate having a third surface having a chip disposed thereon and a fourth surface opposite to the third surface; disposing the first substrate on the third surface of the second substrate through the first conductive posts; forming an encapsulant between the first substrate and the second substrate, wherein the encapsulant has a first surface adjacent to the first substrate and a second surface opposite to the first surface; and removing the first substrate, thereby effectively preventing solder bridging from occurring.

Abstract: A semiconductor package is provided, which includes: a packaging substrate having opposite first and second surfaces and a plurality of first and second conductive pads formed on the first surface; a chip having opposite active and inactive surfaces and disposed on the first conductive pads via the active surface thereof; a plurality of conductive posts formed on the second conductive pads, respectively; and a first encapsulant formed on the first surface of the packaging substrate for encapsulating the chip and the conductive posts and having a plurality of openings for exposing upper surfaces of the conductive posts, thereby increasing the package density and protecting the chip and the interconnection structure from being adversely affected by intrusion of moisture.

Abstract: A method for fabricating a package on package (PoP) structure is provided, which includes: providing a first packaging substrate having at least a first electronic element and a plurality of first support portions, wherein the first electronic element is electrically connected to the first packaging substrate; forming an encapsulant on the first packaging substrate for encapsulating the first electronic element and the first support portions; forming a plurality of openings in the encapsulant for exposing portions of surfaces of the first support portions; and providing a second packaging substrate having a plurality of second support portions and stacking the second packaging substrate on the first packaging substrate with the second support portions positioned in the openings of the encapsulant and bonded with the first support portions. As such, the encapsulant effectively separates the first support portions or the second support portions from one another to prevent bridging from occurring therebetween.

Abstract: A method for fabricating a semiconductor package is disclosed, which includes the steps of: providing a first substrate; disposing a second substrate on the first substrate through a plurality of supporting elements, wherein the second substrate has at least a cleaning hole penetrating therethrough; and performing a cleaning process to clean space between the second substrate and the first substrate through the cleaning hole, thereby preventing a popcorn effect from occurring when the first substrate is heated and hence preventing delamination of the semiconductor package. Further, the cleaning hole facilitates to disperse thermal stresses so as to prevent warping of the first and second substrates during a chip-bonding or encapsulating process, thereby overcoming the conventional drawbacks of cracking of the supporting elements and a short circuit therebetween.

Abstract: A package structure is disclosed, which includes: a first substrate; a build-up layer formed on and electrically connected to the first substrate and having a cavity; at least an electronic element disposed in the cavity and electrically connected to the first substrate; a stack member disposed on the build-up layer so as to be stacked on the first substrate; and an encapsulant formed between the build-up layer and the stack member. The build-up layer facilitates to achieve a stand-off effect and prevent solder bridging.

Abstract: A method for fabricating a semiconductor package is disclosed, which includes: providing first and second packaging substrates, wherein a surface of the first packaging substrate has first conductive pads and first conductive posts formed on the first conductive pads, a surface of the second packaging substrate has second conductive pads and second conductive posts formed on the second conductive pads, and the surface of the second packaging substrate further has a semiconductor chip disposed thereon; disposing the first packaging substrate on the second packaging substrate in a manner that the first conductive posts correspond in position to and are electrically connected to the second conductive posts; and forming an encapsulant between the first and second packaging substrates for encapsulating the first and second conductive posts and the semiconductor chip, thereby effectively preventing solder bridging and increasing the product yield and reliability.

Abstract: A semiconductor package is disclosed, which includes: a first substrate; a first semiconductor component disposed on the first substrate; a second substrate disposed on the first semiconductor component and electrically connected to the first substrate through a plurality of conductive elements; and a first encapsulant formed between the first substrate and the second substrate and encapsulating the first semiconductor component and the conductive elements. The present invention can control the height and volume of the conductive elements since the distance between the first substrate and the second substrate is fixed by bonding the second substrate to the first semiconductor component.

Abstract: A stacked package and a method of fabricating the same are provided. The stacked package includes: a first package, having a first encapsulant, a first electrical connection structure formed on one surface of the first encapsulant, a plurality of first conductive pillars formed in the first encapsulant, and a first semiconductor chip disposed in the first encapsulant are electrically connected to the first electrical connection structure; and a second package stacked on the first package, wherein the second package has a second encapsulant, a second electrical connection structure formed on the second encapsulant, a second semiconductor, a chip disposed in the second encapsulant and electrically connected to the second electrical connection structure, and a plurality of second conductive pillars formed in the second encapsulant and electrically connected to the first electrical conduction pillars. The stacked package can provide a great number of inputs/outputs for electronic applications.