摘要:
To pick and place standard dies on a new base for obtaining an appropriate and wider distance between dies than the original distance of dies on a wafer. The package structure has a larger size of balls array than the size of the die by fan out type package. Moreover, the die may be packaged with passive components or other dies with a side by side structure or a stacking structure.
摘要:
A package structure including a device, an interconnecting element, a pad and a protecting element is provided. The device connects with a first end of the interconnecting element through the pad. The protecting element covers the pad and the first end of the interconnecting element.
摘要:
A package structure including a device, an interconnecting element, a pad and a protecting element is provided. The device connects with a first end of the interconnecting element through the pad. The protecting element covers the pad and the first end of the interconnecting element.
摘要:
An electronic device package with enhanced heat dissipation effect comprises a lead frame and an outer frame with electrically insulating surface. The outer frame encloses the electronic device with a predetermined gap therebetween. The lead frame has a plurality of inner leads extending to the upper surface of the electronic device and a plurality of outer leads enclosing the outer surface of the outer frame. Each inner lead and each outer lead are linked by a slanting portion. The plurality of outer leads includes at least one ground outer lead with larger cross section area than other outer leads. Therefore, the heat generated by the electronic device can be conducted outside through the ground outer lead when the ground outer lead is connected to other device.
摘要:
An indicator based on the present invention for indicating the adhesion status between a substrate and the encapsulation layer of a packaged electronic device is characterized in that at least one indicating pattern and one indicating region surrounding the indicating pattern are formed on the substrate, the adhesion between the indicating pattern and the encapsulant is very good while that between the indicating region and the encapsulant is relatively poor, both the indicating pattern and the indicating region are covered by molding encapsulant which is stripped off when having become hardening, thereby the status of the indicating pattern appearing after stripping off the encapsulant can indicate the adhesion quality (integration quality) between the encapsulation layer and the substrate. The indicator realizes a non-destructive quality checking process in which each electronic device can be checked to achieve one hundred percent of quality control.
摘要:
A method for connecting TEHS to PBGA and a modified connecting structure for TEHS and PBGA are disclosed. The structure improves both heat dissipation efficiency of PBGA by TEHS with high heat conductivity and electrical performance of PBGA by TEHS which is electrically connected to the circuit in PBGA substrate. There are two methods of connecting TEHS to PBGA, including metallic soldering and nonmetallic adhesion. In the metallic soldering, the contact region of the TEHS is covered with a layer of solder tin and soldered to metallic contact region of the growing circuit in the substrate. In the nonmetallic adhesion, the metallic contact region of the growing circuit is covered with a layer of conductive resin. The TEHS is adhered and fixed to the metallic region by curing the conductive resin. Such two methods achieve that the TEHS is completely connected to the ground circuit in the substrate and the inductance of the whole device is reduced to decrease the noise which is generated by the inductance, and further to improve the quality of high speed transmission. Modified structures for soldering TEHS are also provided to reduce the concentration of stress.
摘要:
A process for releasing a runner or gate from an electronic device on a laminate plate after molding process is included. The area of the laminate plate designed to be covered with molding compound is cleaned in advance by appropriate physical and chemical process to enhance the adhesion property, and the area to be covered by the runner or gate is protected from the cleaning process to maintain the original property of low adhesion to the laminate plate. The runner or gate can be easily released from the laminate plate without damage to the molding compound after the molding process, and the yield of the electronic device is increased.
摘要:
A chip scale package for packaging an IC chip includes a package frame displaced from the side and bottom surfaces of the IC chip by a predetermined gap and a pair of leads symmetrically extending in opposite directions. Each lead has an inner lead portion coupled to a bonding point on the top surface of the IC chip, and an outer lead portion bent and contoured in such a way that to follow the shape of the outside surface of the package frame. The lead further includes a connecting segment extending between the inner lead portion and the outer lead portion. Under heat induced stress, an angle between the connecting segment and the wall of the package frame changes causing displacement of the IC chip from its original position, and the gap between the surfaces of the IC chip and the package frame absorbs deviations in position of the IC chip, to cushion the stress effect.