摘要:
A package substrate having an electrically connecting structure are provided. The package substrate include: a package substrate substance with at least a surface having a plurality of electrically connecting pads formed thereon, allowing an insulating protective layer to be formed on the surface of the package substrate substance and the electrically connecting pads and formed with a plurality of openings corresponding in position to the electrically connecting pads so as to expose a portion of the electrically connecting pads, respectively; and a metal layer provided on an exposed portion of the electrically connecting pads, walls of the openings of the insulating protective layer, and a circular portion of the insulating protective layer encircling each of the openings thereof, and provided with a slope corresponding in position to a bottom rim of each of the openings. Accordingly, solder bleeding and short circuits are prevented.
摘要:
A circuit board structure and fabrication method thereof are disclosed, including: a circuit board with a circuit layer thereon; a reactant formed on the surface of the circuit layer, wherein the reactant is an organic metallic polymer having a polymer end and a metal ion end; and a dielectric layer formed above the reactant and the circuit board, thus forming a metallic bond between the metal ion end of the reactant and the circuit layer and forming a chemical bond between the polymer end of the reactant and the dielectric layer. Owing to enhanced bonding between the dielectric layer and the circuit board, electrical performance of the circuit board structure is improved, and the demand for fine circuits is met.
摘要:
Apparatus and methods for forming a heat spreader on a substrate to release heat for a semi-conductor package are disclosed. The apparatus comprises a substrate. A dielectric layer is formed next to the substrate and in contact with a surface of the substrate. A heat spreader is formed next to the substrate and in contact with another surface of the substrate. A passivation layer is formed next to the dielectric layer. A connection pad is placed on top of the passivation layer. The substrate may comprise additional through-silicon-vias. The contact surface between the substrate and the heat spreader may be a scraggy surface. The packaging method further proceeds to connect a chip to the connection pad by way of a connection device such as a solder ball or a bump.
摘要:
A 3D semiconductor package using an interposer is provided. In an embodiment, an interposer is provided having a first die electrically coupled to a first side of the interposer and a second die electrically coupled to a second side of the interposer. The interposer is electrically coupled to an underlying substrate, such as a packaging substrate, a high-density interconnect, a printed circuit board, or the like. The substrate has a cavity such that the second die is positioned within the cavity. The use of a cavity may allow smaller conductive bumps to be used, thereby allowing a higher number of conductive bumps to be used. A heat sink may be placed within the cavity to aid in the dissipation of the heat from the second die.
摘要:
A circuit board structure and a fabrication method of the same are disclosed according to the present invention. The circuit board structure includes: a carrier board with at least one surface formed with a circuit layer having electrically connecting pads; a first solder mask formed on the carrier board and the circuit layer and formed with first openings for exposing the electrically connecting pads; and a second solder mask formed on the first solder mask and formed with second openings for exposing the first openings and the electrically connecting pads. The first solder mask is made of a high-insulation photosensitive material characterized by presence or absence of impurities, such as microparticles, to have enhanced fluidity for being filled in the circuit layer, thereby preventing metal ions migration and subsequent metal hypha electricity discharge which might otherwise affect electrical performance, therefore the present invention is applicable to fine circuit fabrication.
摘要:
A packaging substrate is disclosed, which comprises: a substrate body, wherein a surface thereof has a plurality of conductive pads and a solder mask disposed on the surface and having a plurality of openings to expose the conductive pads; dielectric rings disposed on the inner walls of the openings and extending to parts of the surface of the solder mask surrounding the openings; and metal bumps disposed in the openings and on the conductive pads exposed thereby, and combined with the dielectric rings.
摘要:
A package substrate having double-sided circuits and a method of manufacturing the same are proposed. The package substrate includes a core board having a plated through hole, a plurality of first electrical contact pads, and a first solder mask layer formed on the core board. A first wiring layer and a second wiring layer are disposed on two opposite surfaces of the core board, respectively, and electrically connected to the plated through hole. A portion of the first wiring layer is exposed from a first opening formed in the first solder mask layer. The first electrical contact pads are disposed on the exposed portion of the first wiring layer. The top surface of the first electrical contact pads is higher than that of the first wiring layer to thereby allow a semiconductor chip to be mounted on the electrical contact pads for improving electrical connection.
摘要:
A circuit board disclosed in the present invention includes a core board on which a first circuit layer is placed, wherein the first circuit layer has a plurality of conductive pads; and at least one built-up structure covering the surface of the circuit board, which comprises a dielectric layer, a second circuit layer, and a plurality of conductive vias without being surrounded by annular metal rings. The conductive vias are conducted with the conductive pads of the first circuit layer and the second circuit layer. Besides, the surface of the second circuit layer is in the same height as the surface of the dielectric layer. Also, the present invention provides a method for manufacturing the above-mentioned circuit board structure. Therefore, a circuit board having fine circuits can be formed, and the shape of the circuit can be ensured efficiently. Moreover, electric performances of the circuit board can be improved.
摘要:
A circuit board structure and a fabrication method of the same are disclosed according to the present invention. The circuit board structure includes: a carrier board with at least one surface formed with a circuit layer having electrically connecting pads; a first solder mask formed on the carrier board and the circuit layer and formed with first openings for exposing the electrically connecting pads; and a second solder mask formed on the first solder mask and formed with second openings for exposing the first openings and the electrically connecting pads. The first solder mask is made of a high-insulation photosensitive material characterized by presence or absence of impurities, such as microparticles, to have enhanced fluidity for being filled in the circuit layer, thereby preventing metal ions migration and subsequent metal hypha electricity discharge which might otherwise affect electrical performance, therefore the present invention is applicable to fine circuit fabrication.
摘要:
A method of fabricating an electrical connecting structure of a circuit board is disclosed. The method includes: providing a circuit board having a plurality of first and a plurality of second conductive pads; forming on the circuit board a solder mask having a plurality of openings to thereby expose the first and the second conductive pads; forming an metal adhesive layer on the first and the second conductive pads; forming a conductive layer on the circuit board and the metal adhesive layer; forming on the conductive layer a resistive layer, wherein a plurality of openings are formed in the resistive layer to expose the conductive layer on the second conductive pads; forming a metal post by electroplating through the conductive layer on the second conductive pads; removing the resistive layer and the conductive layer covered underneath; and forming a soldering layer on the metal post. This invention discloses a method of forming different connecting elements on a circuit board.