摘要:
A chip carrier for a semiconductor chip is provided. A plurality of solder pads for bump soldering are formed on a chip mounting surface of the chip carrier, to allow a flip chip to be mounted and electrically connected to the chip carrier. A solder mask layer is formed on the chip carrier, wherein a plurality of openings are provided in the solder mask layer to expose the solder pads, and an outwardly opening extended portion is formed respectively from the openings corresponding to the solder pads having a relatively narrower pitch therebetween, so as to prevent formation of voids during an underfill process for filing a gap between the flip chip and the chip carrier.
摘要:
A semiconductor package with a heat sink is provided. At least one chip and a heat sink attached to the chip are mounted on a substrate. At least one slot is formed through at least one corner of the heat sink at a position attached to the substrate. An adhesive material is applied between the heat sink and substrate and over filled in the slot with an overflow of the adhesive material out of the slot. The adhesive material over filled in the slot provides an anchoring effect and increases its contact area with the heat sink to thereby firmly secure the heat sink on the substrate. Further, the slot formed at the corner of the heat sink can alleviate thermal stresses accumulated at the corner of the heat sink and thereby prevent delamination between the heat sink and the substrate.
摘要:
A semiconductor package with a heat dissipating structure includes a substrate, a chip and a heat dissipating structure. The chip is mounted on and electrically connected to the substrate. The heat dissipating structure includes a first heat sink having at least one positioning portion, and at least one second heat sink having at least one second positioning portion and at least one hollow portion. The second heat sink is mounted on the substrate, and the first positioning portion of the first heat sink is attached to the second positioning portion of the second heat sink, allowing the chip to be accommodated in a space defined by the first heat sink, the hollow portion of the second heat sink and the substrate. This semiconductor package has good heat dissipating efficiency and is cost-effective to fabricate.
摘要:
A semiconductor package with a heat dissipating structure includes a substrate, a chip and a heat dissipating structure. The chip is mounted on and electrically connected to the substrate. The heat dissipating structure includes a first heat sink having at least one positioning portion, and at least one second heat sink having at least one second positioning portion and at least one hollow portion. The second heat sink is mounted on the substrate, and the first positioning portion of the first heat sink is attached to the second positioning portion of the second heat sink, allowing the chip to be accommodated in a space defined by the first heat sink, the hollow portion of the second heat sink and the substrate. This semiconductor package has good heat dissipating efficiency and is cost-effective to fabricate.
摘要:
A chip carrier for a semiconductor chip is provided. A plurality of solder pads for bump soldering are formed on a chip mounting surface of the chip carrier, to allow a flip chip to be mounted and electrically connected to the chip carrier. A solder mask layer is formed on the chip carrier, wherein a plurality of openings are provided in the solder mask layer to expose the solder pads, and an outwardly opening extended portion is formed respectively from the openings corresponding to the solder pads having a relatively narrower pitch therebetween, so as to prevent formation of voids during an underfill process for filing a gap between the flip chip and the chip carrier.
摘要:
A chip scale package structure and a method for fabricating the same are disclosed. The method includes forming metal pads on a predetermined part of a carrier; mounting chips on the carrier, each of the chips having a plurality of conductive bumps soldered to the metal pads; forming an encapsulant on the carrier to encapsulate the chips and the conductive bumps; removing the carrier to expose the metal pads and even the metal pads with a surface of the encapsulant; forming on the encapsulant a plurality of first conductive traces electrically connected to the metal pads; applying a solder mask on the first conductive traces, and forming a plurality of openings on the solder mask to expose a predetermined part of the first conductive traces; forming a plurality of conductive elements on the predetermined part; and cutting the encapsulant to form a plurality of chip scale package structures.
摘要:
A semiconductor package and a fabrication method are disclosed. The fabrication method includes applying a sacrificial layer on one surface of a metal carrier, applying an insulation layer on the sacrificial layer, and forming through holes in the sacrificial layer and the insulation layer to expose the metal carrier; forming a conductive metallic layer in each through hole; forming a patterned circuit layer on the insulation layer to be electrically connected to the conductive metallic layer; mounting at least a chip on the insulation layer and electrically connecting the chip to the patterned circuit layer; forming an encapsulant to encapsulate the chip and the patterned circuit layer; and removing the metal carrier and the sacrificial layer to expose the insulation layer and conductive metallic layer to allow the conductive metallic layer to protrude from the insulation layer. In the present invention, the distance between the semiconductor package and the external device is increased, and thermal stress caused by difference between the thermal expansion coefficients is reduced, so as to enhance the reliability of the product.
摘要:
A semiconductor package with a heat dissipating device and a fabrication method of the semiconductor package are provided. A chip is mounted on a substrate. The heat dissipating device is mounted on the chip, and includes an accommodating room, and a first opening and a second opening that communicate with the accommodating room. An encapsulant is formed between the heat dissipating device and the substrate to encapsulate the chip. A cutting process is performed to remove a non-electrical part of structure and expose the first and second openings from the encapsulant. A cooling fluid is received in the accommodating room to absorb and dissipate heat produced by the chip. The heat dissipating device covers the encapsulant and the chip to provide a maximum heat transfer area for the semiconductor package.
摘要:
A semiconductor package with a heat dissipating device and a fabrication method of the semiconductor package are provided. A chip is mounted on a substrate. The heat dissipating device is mounted on the chip, and includes an accommodating room, and a first opening and a second opening that communicate with the accommodating room. An encapsulant is formed between the heat dissipating device and the substrate to encapsulate the chip. A cutting process is performed to remove a non-electrical part of structure and expose the first and second openings from the encapsulant. A cooling fluid is received in the accommodating room to absorb and dissipate heat produced by the chip. The heat dissipating device covers the encapsulant and the chip to provide a maximum heat transfer area for the semiconductor package.
摘要:
A heat sink package structure and a method for fabricating the same are disclosed. The method includes mounting and electrically connecting a semiconductor chip to a chip carrier, forming an interface layer or a second heat dissipating element having the interface layer on the semiconductor chip and installing a first heat dissipating element having a heat dissipating portion and a supporting portion onto the chip carrier. The method further includes forming openings corresponding to the semiconductor chip in the heat dissipating portion, and forming an encapsulant for covering the semiconductor chip, the interface layer or the second heat dissipating element, and the first heat dissipating element. A height is reserved on top of the interface layer for the formation of the encapsulant for covering the interface layer. The method further includes cutting the encapsulant along edges of the interface layer, and removing the redundant encapsulant on the interface layer. Therefore, the drawbacks of the prior art of the burrs caused by a cutting tool for cutting the heat dissipating element and wearing of the cutting tool are overcome.