摘要:
A heat-dissipating semiconductor package and a fabrication method thereof are provided. A semiconductor chip is mounted and electrically connected to a substrate. A heat-dissipating structure includes a heat sink and at least one supporting portion, wherein the supporting portion is attached to the substrate at a position outside a predetermined package area for the semiconductor package, and the semiconductor chip is disposed under the heat sink. An encapsulant is formed on the substrate to encapsulate the semiconductor chip and the heat-dissipating structure, wherein a projection area of the encapsulant on the substrate is larger in size than the predetermined package area. A cutting process is performed along edges of the predetermined package area to remove parts of the encapsulant, the supporting portion and the substrate, which are located outside the predetermined package area, so as to form the semiconductor package integrated with the heat-dissipating structure.
摘要:
A heat-dissipating semiconductor package structure and a method for manufacturing the same is disclosed. The method includes: disposing on and electrically connecting to a chip carrier at least a semiconductor chip and a package unit; disposing on the top surface of the package unit a heat-dissipating element having a flat portion and a supporting portion via the flat portion; receiving the package unit and semiconductor chip in a receiving space formed by the flat portion and supporting portion of the heat-dissipating element; and forming on the chip carrier encapsulant for encapsulating the package unit, semiconductor chip, and heat-dissipating element. The heat-dissipating element dissipates heat generated by the package unit, provides EMI shielding, prevents delamination between the package unit and the encapsulant, decreases thermal resistance, and prevents cracking.
摘要:
A semiconductor package and a method for fabricating the same are disclosed. The present invention discloses mounting and electrically connecting a semiconductor chip to a chip carrier, forming an interfacial layer or a heat-dissipating member having the interfacial layer on the semiconductor chip, and forming an encapsulant for covering the semiconductor chip, the interfacial layer or the heat dissipating member. The method further includes cutting the encapsulant along edges of the interfacial layer, and removing the redundant encapsulant on the interfacial layer so as to expose the semiconductor chip or the heat-dissipating member without forming burr or heavily wearing cutting tools.
摘要:
This invention provides a method for fabricating a semiconductor device and a carrier applied therein. The method includes the steps of: disposing a chip-mounted substrate in an opening of a carrier; forming at least a storage aperture and at least an inspection aperture in the carrier; infusing an adhesive into the storage aperture to fill a gap between the substrate and carrier with the adhesive by capillarity; determining whether the inspection aperture is filled with the adhesive to ascertain whether the gap is completely filled with the adhesive; in response to a positive result, performing a molding process to form a molding compound for encapsulating the chip; and performing implantation of solder ball and a singulation process to form a semiconductor device with desirable dimensions. The inspection aperture is inspected with a naked eye to determine whether the gap is completely filled with the adhesive, thereby reducing inspection costs and increasing yields of products with no additional packaging costs.
摘要:
A heat dissipating semiconductor package and a heat dissipating structure thereof are provided. The heat dissipating structure includes an outer surface, consecutive recessed step portions, and a pressure-releasing groove. The outer surface is exposed from an encapsulant made of a molding compound. The step portions are formed at an edge of the outer surface and have decreasing depths wherein the closer a step portion to a central position of the outer surface, the smaller the depth of this step portion is. The pressure-releasing groove is disposed next to and deeper than the innermost one of the step portions. A molding compound flows to the step portions and absorbs heat from an encapsulation mold quickly, such that a flowing speed of the molding compound is reduced. Pressure suffered by air remaining at the step portions is released through the pressure-releasing groove, thereby preventing flashes of the molding compound and resin bleeding.
摘要:
A stack structure of semiconductor packages and a method for fabricating the stack structure are provided. A plurality of electrical connection pads and dummy pads are formed on a surface of a substrate of an upper semiconductor package and at positions corresponding to those around an encapsulant of a lower semiconductor package. Solder balls are implanted to the electrical connection pads and the dummy pads. The upper semiconductor package is mounted on the lower semiconductor package. The upper semiconductor package is electrically connected to the lower semiconductor package by the solder balls implanted to the electrical connection pads, and the encapsulant of the lower semiconductor package is surrounded and confined by the solder balls implanted to the dummy pads. Thereby, the upper semiconductor package is properly and securely positioned on the lower semiconductor package, without the occurrence of misalignment between the upper and lower semiconductor packages.
摘要:
A stack structure of semiconductor packages and a method for fabricating the stack structure are provided. A plurality of electrical connection pads and dummy pads are formed on a surface of a substrate of an upper semiconductor package and at positions corresponding to those around an encapsulant of a lower semiconductor package. Solder balls are implanted to the electrical connection pads and the dummy pads. The upper semiconductor package is mounted on the lower semiconductor package. The upper semiconductor package is electrically connected to the lower semiconductor package by the solder balls implanted to the electrical connection pads, and the encapsulant of the lower semiconductor package is surrounded and confined by the solder balls implanted to the dummy pads. Thereby, the upper semiconductor package is properly and securely positioned on the lower semiconductor package, without the occurrence of misalignment between the upper and lower semiconductor packages.
摘要:
A stack structure of semiconductor packages and a method for fabricating the stack structure are provided. A plurality of electrical connection pads and dummy pads are formed on a surface of a substrate of an upper semiconductor package and at positions corresponding to those around an encapsulant of a lower semiconductor package. Solder balls are implanted to the electrical connection pads and the dummy pads. The upper semiconductor package is mounted on the lower semiconductor package. The upper semiconductor package is electrically connected to the lower semiconductor package by the solder balls implanted to the electrical connection pads, and the encapsulant of the lower semiconductor package is surrounded and confined by the solder balls implanted to the dummy pads. Thereby, the upper semiconductor package is properly and securely positioned on the lower semiconductor package, without the occurrence of misalignment between the upper and lower semiconductor packages.
摘要:
A stack structure of semiconductor packages and a method for fabricating the stack structure are provided. A plurality of electrical connection pads and dummy pads are formed on a surface of a substrate of an upper semiconductor package and at positions corresponding to those around an encapsulant of a lower semiconductor package. Solder balls are implanted to the electrical connection pads and the dummy pads. The upper semiconductor package is mounted on the lower semiconductor package. The upper semiconductor package is electrically connected to the lower semiconductor package by the solder balls implanted to the electrical connection pads, and the encapsulant of the lower semiconductor package is surrounded and confined by the solder balls implanted to the dummy pads. Thereby, the upper semiconductor package is properly and securely positioned on the lower semiconductor package, without the occurrence of misalignment between the upper and lower semiconductor packages.
摘要:
A heat dissipation package structure and method for fabricating the same are disclosed, which includes mounting and electrically connecting a semiconductor chip to a chip carrier through its active surface; mounting a heat dissipation member having a heat dissipation section and a supporting section on the chip carrier such that the semiconductor chip can be received in the space formed by the heat dissipation section and the supporting section, wherein the heat dissipation section has an opening formed corresponding to the semiconductor chip; forming an encapsulant to encapsulate the semiconductor chip, and the heat dissipation member; and thinning the encapsulant to remove the encapsulant formed on the semiconductor chip to expose inactive surface of the semiconductor chip and the top surface of the heat dissipation section from the encapsulant. Therefore, the heat dissipation package structure is fabricated through simplified fabrication steps at low cost, and also the problem that the chip is easily damaged in a package molding process of the prior art is overcome.