摘要:
An electrical substrate useful for semiconductor packages is disclosed. The electrical substrate includes a core insulative layer. A first surface of the insulative layer has circuit patterns thereon. Some of the circuit patterns are stepped in their heights from the first surface, in that a first subportion of the circuit pattern, including a ball land, extends further from the first surface than a second subportion of the same circuit pattern, and also extends further from the first surface than a ball land of other circuit patterns. Accordingly, solder balls fused to the ball lands of the stepped circuit patterns extend further from the first surface than same-size solder balls fused to the ball lands of the non-stepped circuit patterns, thereby circumventing electrical connectivity problems that may arise from warpage of the electrical substrate.
摘要:
A memory card comprising a substrate having opposed top and bottom surfaces and a plurality of terminals disposed on the bottom surface thereof. Mounted to the top surface of the substrate is at least one component which is itself electrically connected to the terminals of the substrate. Formed on the bottom surface of the substrate is a first encapsulation part. Formed on the top surface of the substrate is a second encapsulation part which encapsulates the component mounted thereto.
摘要:
A memory card comprising a die paddle having opposed, generally planar first and second die paddle surfaces and multiple peripheral edge segments. Disposed along and in spaced relation to one of the peripheral edge segments of the die paddle is a plurality of contacts, each of which has opposed, generally planar first and second contact surfaces. An inner body partially encapsulates the die paddle and the contacts, the first contact surface of each of the contacts and the first die paddle surface of the die paddle being exposed in and substantially flush with a generally planar first inner body surface of the inner body. The inner body further defines a generally planar second inner body surface which is disposed in opposed relation to the first inner body surface, the second contact surface of each of the contacts being exposed in the second inner body surface. At least one electronic circuit element is attached to the first die paddle surface and electrically connected to at least one of the contacts. An outer body partially encapsulates the inner body such that the first die paddle surface, the first contact surface of each of the contacts, the first inner body surface and the electronic circuit element are covered by the outer body, with the second inner body surface and hence the second contact surface of each of the contacts not being covered by the outer body and thus exposed.
摘要:
A semiconductor package and method of producing the same has a semiconductor die having a first face and a second face. A coating material is coupled to the second face of the semiconductor die. A substrate having a cavity is provided wherein the semiconductor die is placed within the cavity. An encapsulant is used to encapsulate the second face of the semiconductor die placed in the cavity. Connection members are provided to couple the semiconductor die and the substrate in order to transfer signals between the semiconductor die and the substrate. Terminal members are couple to the substrate to connect the semiconductor package to an external device. In the semiconductor package, a thermal expansion coefficient of the coating material C and a thermal expansion coefficient of the encapsulant E should be approximately equal in value in order to limit the problems associated with warpage.
摘要:
A memory card comprising a circuit board having opposed upper and lower circuit board surfaces, at least one test pad disposed on the upper circuit board surface, and a conductive pattern disposed on the lower circuit board surface and electrically connected to the test pad. Electrically connected to the conductive pattern of the circuit board is a leadframe which includes a plurality of leads, each of the leads having a signal pad portion. At least one electronic circuit element is attached to the lower circuit board surface and electrically connected to the leadframe and to the conductive pattern of the circuit board. A body at least partially encapsulates the circuit board, the leadframe and the electronic circuit element such that the test pad of the circuit board is exposed in an upper body surface of the body, and the signal pad portions of the leads of the leadframe are exposed in a lower body surface of the body.
摘要:
A semiconductor package has a substrate comprising a resin layer of an approximate planar plate, a cavity passing through the resin layer vertically at a center area thereof, a plurality of electrically conductive patterns formed at a bottom surface of the resin layer, and a conductive plan. An adhesive layer of a predetermined thickness is formed at an upper part of an inside of the cavity. A semiconductor die is positioned inside the cavity of the substrate and has a plurality of bond pads formed at a bottom surface thereof, a bottom surface of the adhesive layer being bonded to a top surface thereof. A plurality of conductive wires for electrically connecting the bond pads of the semiconductor die to the electrically conductive patterns are formed at a bottom surface of the substrate. An encapsulant is used for covering the semiconductor die formed at the lower part of the adhesive layer, the conductive wires and the cavity. A plurality of solder balls are fused to the electrically conductive patterns, which is formed at the bottom surface of the substrate.
摘要:
An epoxy resin composition for encapsulating a semiconductor device includes a curing agent, a curing accelerator, inorganic fillers, and an epoxy resin, the epoxy resin including a first resin represented by Formula 1: wherein R1 and R2 are each independently hydrogen or a C1 to C4 linear or branched alkyl group, and n is a value from 1 to 9 on average.
摘要:
A micro- or nano-fluidic chip fabricated with a Norland Optical Adhesive (NOA), an acrylated polyurethane-based UV-polymerizable optical adhesive. The micro- or nano-fluidic chip has sequentially an inlet, a channel, and an outlet. The channel has a pillar in the region of the outlet to prevent beads from flowing out, and the surface of the channels in the micro- or nano-fluidic chip is hydrophilic, which generates spontaneous flow in the channels by a capillary force without any extra external pumping.
摘要:
Disclosed is a semiconductor package. The semiconductor package is configured to form a plurality of through holes for forming a through silicon via at once using a sawing device used for wafer sawing instead of a separate laser drilling equipment or a deep reactive ion etching (DRIE) equipment. Accordingly, the semiconductor package saves fabricating time and increases fabrication yield, saves costs for a laser drilling equipment or a DRIE equipment, and prevents various defects generated in an inner portion of a through hole in the case of using the laser drilling equipment or the DRIE equipment.
摘要:
A semiconductor device and method of manufacturing the same are provided. The semiconductor device comprises a semiconductor die including a bond pad, a redistribution layer, and a solder ball. The redistribution layer is formed by sequentially plating copper and nickel, sequentially plating nickel and copper, or sequentially plating copper, nickel, and copper. The redistribution layer includes a nickel layer in order to prevent a crack from occurring in a copper layer. Further, a projection is formed in an area of the redistribution layer or a dielectric layer to which the solder ball is welded and corresponds, so that an area of the redistribution layer to which the solder ball is welded increases, thereby increasing bonding power between the solder ball and the redistribution layer.