摘要:
A semiconductor device is disclosed including an electromagnetic radiation shield. The device may include a substrate having a shield ring defined in a conductance pattern on a surface of the substrate. One or more semiconductor die may be affixed and electrically coupled to the substrate. The one or more semiconductor die may then be encapsulated in molding compound. Thereafter, a metal may be plated around the molding compound and onto the shield ring to form an EMI/RFI shield for the device.
摘要:
A semiconductor package is disclosed including a plurality semiconductor die mounted on stacked and bonded layers of substrate, for example polyimide tape used in tape automated bonding processes. The tape may have a plurality of repeating patterns of traces and contact pads formed thereon. The traces each include aligned interconnect pads on the respective top and bottom surfaces of the substrate for bonding the traces of one pattern to the traces of another pattern after the patterns have been singulated from the substrate, aligned and stacked. Semiconductor die such as flash memory and a controller die are mounted on the traces of the respective patterns on the substrate. In order for the controller die to uniquely address a specific flash memory die in the stack, a group of traces on each substrate supporting the memory die are used as address pins and punched in a unique layout relative to the layout of the traces other substrates. By providing each flash memory semiconductor die on a substrate with a unique layout of address traces, each memory die may be selectively addressed by the controller die.
摘要:
An electronic component is disclosed including a plurality of stacked semiconductor packages. A first such embodiment includes an internal connector for electrically coupling the stacked semiconductor packages. A second such embodiment includes an external connector for electrically coupling the stacked semiconductor packages.
摘要:
A semiconductor device is disclosed including an electromagnetic radiation shield. The device may include a substrate having a shield ring defined in a conductance pattern on a surface of the substrate. One or more semiconductor die may be affixed and electrically coupled to the substrate. The one or more semiconductor die may then be encapsulated in molding compound. Thereafter, a metal may be plated around the molding compound and onto the shield ring to form an EMI/RFI shield for the device.
摘要:
A semiconductor package is disclosed including a substrate, a solder mask layer, one or more semiconductor die mounted to the solder mask layer and electrically coupled to the substrate, and a glob top cover over the semiconductor die. The solder mask further includes a dam protruding above surrounding areas of the solder mask layer and a cavity recessed into the solder mask layer for limiting flow of the glob top cover when the glob top material is applied.
摘要:
A semiconductor device and a fabrication method of the same are proposed, in which at least one electronic component is firstly mounted on a first substrate, and then the first substrate is attached onto a semiconductor chip or a second substrate. Further, with the chip being deposited on the second substrate, electrical connection is established among the first substrate, the second substrate and the chip. This combined structure is subsequently subjected to molding, ball implantation and singulation processes, and thus completes the fabrication of the semiconductor device. Such a semiconductor device provides significant advantages, including prevention of the occurrence of wire short-circuiting, no need to alter the substrate design, no need to use a circuit pattern with fine pitches or an expensive substrate integrated with electronic components.
摘要:
A semiconductor package is proposed, in which a substrate is formed with a chip bonding area and a plurality of bond fingers surrounding the chip bonding area, and a plurality of bridging elements are disposed in a stagger manner between the chip bonding area and the bond fingers on the substrate. Multiple wire bonding processes are performed to bond first gold wires between the chip and the bridging elements, and bond second gold wires between the bridging elements and the bond fingers. This therefore significantly shortens a wire bonding distance as compared with only one time of wire bonding for electrically connecting the chip to the substrate. As a result, wire bond operability is improved, and the shortened wire bonding distance reduces wire length so as to enhance resistance of the gold wires to mold flow impact during molding, thereby preventing wire sweeping or wire sagging from occurrence.
摘要:
An integrated-circuit package with a quick-to-count finger layout design on substrate is proposed, which can help fabrication engineers to visually check the total number of fingers on the substrate in a quick and accurate manner. The proposed integrated-circuit package is characterized by the provision of a line-up array of fingers which includes a plurality of first-shape fingers partitioned equally in number into a plurality of subgroups; and a plurality of second-shape fingers, which are substantially visually distinguishable in outer appearance from the first-shape fingers, and which are interposed between adjacent subgroups of the first-shape fingers to serve as count tokens. This finger layout design allows the fabrication engineers to visually check the total number of the line-up array of fingers on the substrate simply by counting through the second-shape fingers that serve as count tokens and then multiply the result by the number of first-shape fingers in each subgroup plus one.
摘要:
A method is proposed for the fabrication of plated circuit lines, including contact fingers, electrically-conductive traces, and solder-ball pads, over an BGA (Ball Grid Array) substrate. The method is characterized by that contact fingers, electrically-conductive traces, and solder-ball pads on the BGA substrate are interconnected with provisional bridging lines; and then, each integrally-connected group of the contact fingers, the electrically-conductive traces, and the solder-ball pads is connected via a branched plating line to a common plating bus. During plating process, the plating electrical current can be applied to the plating bus and then distributed over these branched plating lines to all of the contact fingers and the solder-ball pads. Finally, a drilling process is performed to break all the provisional bridging lines into open-circuited state. Compared to the prior art, since the proposed method requires no use of etchant during the drilling process, it would cause no contamination to the substrate surfaces. Moreover, the proposed method allows the use of a reduced layout area for the circuit lines and can help reduce mutual inductive interference among the circuit lines.
摘要:
A semiconductor die package is disclosed. An example of the semiconductor package includes a first group of semiconductor die interspersed with a second group of semiconductor die. The die from the first and second groups are offset from each other along a first axis and staggered with respect to each other along a second axis orthogonal to the first axis. A second example of the semiconductor package includes an irregular shaped edge and a wire bond to the substrate from a semiconductor die above the lowermost semiconductor die in the package.