摘要:
A process applied to grinding, dicing, and/or stacking semiconductors is disclosed. One of its features is that after transparent material is stuck on its active surface, a semiconductor is ground from another surface thereof to become thinner, then take advantage of transparency of the transparent material to cut the transparent material and the semiconductor, to obtain at least one smaller semiconductor unit such as die or chip. Another feature is that the transparent material remains sticking to the active surface of the die by an adhesion layer until the die is attached to a carrier or another die, and then the transparent material and the adhesion layer are removed by taking advantage of a function of the adhesion layer: receiving a ray to lose adhesion between it and the active surface. Preferably the ray reaches the adhesion layer via the transparent material stuck on the active surface of the die.
摘要:
A heat dissipating semiconductor package and a fabrication method therefor are provided. The fabrication method for the heat dissipating semiconductor package mainly includes steps of: containing a substrate having a chip mounted thereon in an aperture of a carrier; mounting a heat dissipating sheet having supporting portions on the carrier with the heat dissipating sheet being attached on the chip; forming an encapsulant to encapsulate the semiconductor chip and the heat dissipating structure; removing a part of the encapsulant above the heat dissipating sheet with a part of the heat dissipating sheet exposed from the encapsulant by lapping; and forming a cover layer on the part of heat dissipating sheet to prevent it from oxidation; and cutting along a predetermined size of the semiconductor package, thereby heat generated from an operation of the chip is dissipated via the heat dissipating structure.
摘要:
The invention provides a sensor-type semiconductor package and fabrication method thereof. The fabrication method includes steps of: attaching a sensor chip to a chip carrier; electrically connecting the sensor chip and a chip carrier via a plurality of bonding wires; mounting a light-permeable body to the sensor chip with an adhesive layer as a partition therebetween, wherein the planar size of the light-permeable body is larger than a predefined planar size of the sensor-type semiconductor package to be formed; forming an encapsulant on the chip carrier for encapsulating the sensor chip and the bonding wires with the upper surface of the light-permeable body being exposed from the encapsulant; and cutting through the light-permeable body, the encapsulant and the chip carrier according to the predefined planar size. Accordingly the contacting area between the cut light-permeable body and the cut encapsulant increased and the bonding therebetween is reinforced.
摘要:
A semiconductor package and a fabrication method thereof are disclosed. The fabrication method includes the steps of providing a semiconductor chip having an active surface and a non-active surface opposing to the active surface, roughening a peripheral portion of the non-active surface so as to divide the non-active surface into the peripheral portion formed with a roughened structure and a non-roughened central portion, mounting the semiconductor chip on a chip carrier via a plurality of solder bumps formed on the active surface, forming an encapsulant on the chip carrier to encapsulate the semiconductor chip. The roughened structure formed on the peripheral portion of the non-active surface of the semiconductor chip can reinforce the bonding between the semiconductor chip and the encapsulant, and the non-roughened central portion of the non-active surface of the semiconductor chip can maintain the structural strength of the semiconductor chip.
摘要:
A semiconductor package and a method for fabricating the same are provided. The method includes providing a substrate having recognition points and a heat sink having openings, and placing the heat sink on the substrate with the recognition points being exposed through the openings; using a checking system to inspect the recognition points through the openings so as to ensure that the heat sink is placed at a predetermined position on the substrate; and attaching the heat sink to the substrate via an adhesive. By the above semiconductor package and method, there is no need to form positioning holes in the substrate such that any adverse effect on the circuit layout and reliability of the semiconductor package is avoided, and any positional shifting of the heat sink relative to the substrate can be determined in a real time manner.
摘要:
A semiconductor device and the fabrication method thereof are provided. The fabrication method includes providing a substrate module plate having a plurality of substrates; attaching at least one sensor chip to each of the substrates of the substrate module plate; electrically connecting each of the sensor chips to each of the substrates through bonding wires; forming an insulating layer between each sensor chip on the substrate module plate, wherein the height of the insulating layers are not greater than the thickness of the sensor chips so as to prevent flash from the insulating layers from contaminating the sensor chips; forming an adhesive lip on the insulating layer or forming a second insulating layer followed by forming the adhesive layer, wherein the adhesive layer or the second insulating layer is higher than the highest loop-height of the bonding wires; adhering a light transmitting cover to each adhesive layer to cover the sensor chip; and cutting the substrate module plate to separate the substrates to form a plurality of semiconductor devices each integrated with at least one sensor chip. As the adhesive layers are not in contact with the bonding wires, the problems of damaging or breaking the bonding wires can be prevented in the process of adhering the light transmitting cover.
摘要:
An electronic carrier board and a package structure thereof are provided. The electronic carrier board includes a carrier, at least one pair of bond pads formed on the carrier, and a protective layer covering the carrier. An opening is formed in the protective layer to expose at least three sides of each of the paired bond pads. The protective layer includes at least one independent residual portion located in the opening and between the paired bond pads, such that an electronic component is mounted on the independent residual portion and electrically connected to the bond pads. A groove without a dead space is formed between the electronic component and the carrier, such that a molding compound for encapsulating the electronic component can flow through the groove to fill the opening and a space under the electronic component and encapsulate the at least three sides of each of the bond pads.
摘要:
A process applied to grinding, dicing, and/or stacking semiconductors is disclosed. One feature of the process is that after transparent material is stuck on its active surface, a semiconductor is ground from another surface thereof to become thinner, then the semiconductor is diced, by taking advantage of transparency of the transparent material, from its active surface, to obtain at least one smaller semiconductor unit such as die/dice or chip(s). Another feature is that the transparent material remains sticking to the active surface of the die by an adhesion layer until the die is attached to a carrier or another die, and then the transparent material and the adhesion layer are removed by taking advantage of a function of the adhesion layer: receiving a ray to lose adhesion between it and the active surface. Preferably the ray reaches the adhesion layer via the transparent material stuck on the active surface of the die.
摘要:
A semiconductor package having conductive bumps on a chip and a fabrication method thereof are provided. A plurality of the conductive bumps are deposited respectively on bond pads of the chip. An encapsulation body encapsulates the chip and conductive bumps while exposing ends of the conductive bumps. A plurality of conductive traces are formed on the encapsulation body and electrically connected to the exposed ends of the conductive bumps. A solder mask layer is applied over the conductive traces and formed with openings for exposing predetermined portions of the conductive traces. The exposed portions of the conductive traces are connected to a plurality of solder balls respectively. The conductive bumps on the bond pads of the chip allow easy positional recognition of the bond pads, making the conductive traces well electrically connected to the bond pads through the conductive bumps and assuring the quality and reliability of the semiconductor package.
摘要:
A semiconductor package with an embedded heat spreader (EHS) is proposed, which can be used for the fabrication of a semiconductor package, such as a FCBGA (Flip-Chip Ball Grid Array) package with a heat spreader, and which is characterized by the provision of a plurality of recessed portions, either in the heat spreader attach area of the substrate, or in the support portion of the heat spreader, or in both, so as to allow the fill-in portions of the adhesive layer that are filled in these recessed portions to form anchor structures to benefit the heat spreader against crosswise shear stress. Moreover, since the provision of these recessed portions allows an increase in the contact area of the adhesive layer with the substrate and the heat spreader, it can help increase the adhesive strength to provide the heat spreader more securely adhered in position on the substrate.