摘要:
A flip-chip package structure comprising a substrate, a chip, a bump structure and a solder resist is provided. The substrate has a circuit layer disposed on the surface thereof. The chip comprises a central region and two edge regions disposed on the two sides of the central region. The bump structure is disposed on the central region of the chip and faces the substrate. The solder resist is disposed on the substrate to partially cover the circuit layer. The chip is electrically connected to the substrate by the bump structure, and the solder resist is adapted to come into contact with the two edge regions of the chip to support the chip with the bump structure when the chip is disposed on the substrate.
摘要:
The present invention provides a method of testing a stacked semiconductor device structure. This method includes the following steps: providing a testing board having a plurality of testing points and a probe card; providing a substrate which is disposed on the testing board; providing a plurality of semiconductor devices; mounting and electrically connecting a first one of the semiconductor devices onto the substrate; mounting and electrically connecting a second one of the semiconductor devices onto the first one of the semiconductor devices; keeping the probe card in contact with the second one of the semiconductor devices for electrical testing; and repeating the steps of mounting and testing of the semiconductor devices until all of the semiconductor devices are tested. This method can ensure the integrity of electrical interconnections between the semiconductor devices of the stacked structure.
摘要:
A magnetic separation unit is provided, including a first member made of non-magnetic materials comprising a trench extending within the first member and a second member made of magnetic materials including a protrusion portion protruding over a surface of the second member, wherein the first member connects the second member such that the trench functions as a fluid channel formed between the first and second members, and the protrusion portion of the second member is contained by the trench of the first member.
摘要:
A multi-chip stack package structure comprises a substrate, which has a chip placement area defined on its upper surface and a plurality of contacts disposed outside the chip placement area; a first chip is disposed in the chip placement area with the rear surface, a plurality of first pads being disposed on the active surface and a plurality of first bumps each being formed on one of the first pads; a plurality of metal wires connect the first bumps to the contacts; a second chip with a plurality of second pads being disposed on the active surface and a plurality of second bumps each being formed on one of the second pads, the second chip being mounted to the first chip with its active surface facing the active surface of the first chip, wherein the second bumps correspondingly connect the metal wires and the first bumps respectively.
摘要:
A multi-chip stack package structure comprises a substrate, which has a chip placement area defined on its upper surface and a plurality of contacts disposed outside the chip placement area; a first chip is disposed in the chip placement area with the rear surface, a plurality of first pads being disposed on the active surface and a plurality of first bumps each being formed on one of the first pads; a plurality of metal wires connect the first bumps to the contacts; a second chip with a plurality of second pads being disposed on the active surface and a plurality of second bumps each being formed on one of the second pads, the second chip being mounted to the first chip with its active surface facing the active surface of the first chip, wherein the second bumps correspondingly connect the metal wires and the first bumps respectively.
摘要:
A multi-chip stack package structure comprises a substrate, which has a chip placement area defined on its upper surface and a plurality of contacts disposed outside the chip placement area; a first chip is disposed in the chip placement area with the rear surface, a plurality of first pads being disposed on the active surface and a plurality of first bumps each being formed on one of the first pads; a plurality of metal wires connect the first bumps to the contacts; a second chip with a plurality of second pads being disposed on the active surface and a plurality of second bumps each being formed on one of the second pads, the second chip being mounted to the first chip with its active surface facing the active surface of the first chip, wherein the second bumps correspondingly connect the metal wires and the first bumps respectively.
摘要:
Semiconductor package structures and methods for manufacturing the same are provided. The semiconductor package structure comprises a substrate unit and a first chip stack structure. The substrate unit comprises a circuit structure having test pads. The first chip stack structure comprises chips, and each of the chips has a plurality of through silicon plugs. The through silicon plugs of two adjacent chips are electrically connected and further electrically connected to the test pads of the substrate unit for electrical testing. Another semiconductor package structure provided by the present invention comprises a first semiconductor chip and a second semiconductor chip. Each of the semiconductor chips has test pads for electrical testing and a plurality of through silicon plugs connecting to the test pads. The second semiconductor chip is mounted on the first semiconductor chip, and a portion of the through silicon plugs of two semiconductor chips are electrically connected with each other.
摘要:
A pillar grid array package (PGA) includes a substrate, a chip disposed on top of the substrate, and a plurality of stud bumps disposed on bottom of the substrate. The stud bumps are formed in an array and each has a flattened top to electrically connect to a printed circuit board, PCB, by an anisotropic conductive paste to achieve a thin package and to avoid substrate warpage problems of a ball grid array (BGA) during high-temperature reflow processes.
摘要:
An IC package to enhance the bondibility of embedded bumps, primarily includes a substrate having a plurality of bump-accommodating holes, a bumped chip, an encapsulant, and a plurality of external terminals. The substrate further has a plurality of inner pads at one ends of the bump-accommodating holes respectively. The inner pads may be meshed or a soldering layer is disposed thereon for improving bump connection. The chip is attached to the substrate with the bumps aligned and embedded in the corresponding bump-accommodating holes. The encapsulant is at least formed on a lower surface of the substrate to encapsulate the meshes or the soldering layer. By the suspended meshes or/and the soldering layer, the bumps can be easily bonded at lower temperatures to simplify the manufacturing process with shorter electrical conductive paths and thinner package profiles without wire sweeping.
摘要:
A replaceable modular probe head is composed of a plurality of in-parallel probing modules. Each probing module has a plurality of in-series probing regions. In the present embodiment, each probing module has mechanical connection parts on its both ends to attach to a printed circuit board (PCB) to be a multi-DUT probe card. Therefore, the probing module can be replaced individually when probes are damaged or worn without replacing the whole probe head to reduce the fabrication cost of a multi-DUT probe head.