44results about How to "Improve electrical connection quality" patented technology

A semiconductor package and a fabrication method are disclosed. The fabrication method includes applying a sacrificial layer on one surface of a metal carrier, applying an insulation layer on the sacrificial layer, and forming through holes in the sacrificial layer and the insulation layer to expose the metal carrier; forming a conductive metallic layer in each through hole; forming a patterned circuit layer on the insulation layer to be electrically connected to the conductive metallic layer; mounting at least a chip on the insulation layer and electrically connecting the chip to the patterned circuit layer; forming an encapsulant to encapsulate the chip and the patterned circuit layer; and removing the metal carrier and the sacrificial layer to expose the insulation layer and conductive metallic layer to allow the conductive metallic layer to protrude from the insulation layer. In the present invention, the distance between the semiconductor package and the external device is increased, and thermal stress caused by difference between the thermal expansion coefficients is reduced, so as to enhance the reliability of the product.

In a wire-bonding process, a chip is provided with at least a first contact pad. A chip carrier is further provided with at least a second contact pad. A plurality of stacked conductive bumps are formed on the first contact pad. A conductive wire is formed by a reverse bonding process. The conductive wire electrically connects the second contact pad of the chip carrier to the stacked conductive bumps over the first contact pad of the chip.

The invention relates to a photovoltaic laminating piece. The photovoltaic laminating piece comprises a transparent cover plate, a first sealing layer, a battery piece layer, a second sealing layer and a back plate which are laminated in sequence, wherein the battery piece layer comprises a plurality of connected battery pieces and a converge belt electrically connected onto the battery pieces; an electrode exposing hole is formed in the back plate, and the electrode exposing hole passes through the back plate and the second sealing layer so that the converge belt is leaked out. According to the photovoltaic laminating piece, the hidden cracking problem of the battery pieces caused by improper outgoing line penetration is avoided; and the manual workload can be greatly reduced. Moreover, the electrical connection quality of the photovoltaic laminating piece and a junction box is improved, the workload of subsequent cleaning stations is reduced, and the cleaning frequency and workload of a laminating machine are reduced. The invention also provides a preparation method of the photovoltaic laminating piece and a photovoltaic module comprising the photovoltaic laminating piece.

A circuit board and a fabrication method thereof. Providing the insulating layer with a first conductive layer formed thereon; wherein the insulating layer was formed on a core substrate with at least one patterned circuit layer thereon. A first resist layer is applied on a first conductive layer, forming first openings to expose the first conductive layer. A first patterned circuit layer, including conductive pads and traces, is formed in the first openings. A second resist layer is applied to cover the traces, and a conductive post is formed on each conductive pad. The first and second resist layers and the first conductive layer underneath the first resist layer are removed. A dielectric material layer is formed on the insulating layer with first patterned circuit layer, forming second openings to expose the conductive posts. A second conductive layer is formed on the dielectric material layer and in the second openings. A third resist layer is applied on the second conductive layer, forming third openings of the third resist layer to expose the second conductive layer. A second patterned circuit layer is formed in the second and third openings.

A circuit board device with a fine conductive structure is proposed. A circuit board having at least a circuit layer is provided and the circuit layer has at least one electrically conductive pad. At least one first dielectric layer is formed on surfaces of the circuit board and the circuit layer and has at least one opening to expose the electrically conductive pad of the circuit layer. At least a first fine conductive structure made of conductive material with high ductility is formed in the opening of the first dielectric layer and is electrically connected to the electrically conductive pad of the circuit layer. The top surface of the first fine conductive structure is higher than, level with or lower than the surface of the first dielectric layer. Moreover, a conductive pad may be further formed on the top surface of the first fine conductive structure. Since the first fine conductive structure is made of conductive material with high ductility, the stress strength of the first fine conductive structure is reinforced and the electrically connecting quality between layers of the circuit board is improved.

This circuit composition aid system composites in the hi density area of circuit board including many components. A selection module selects 3 selection points along both sides of the circuit line. One point is on one side and the other two on the other side. The reading module (RM) fetches the related info and the wire-going info of the selected points. According to the info from RM, the enactment module (EM) enacts the center position and the radius of the arc and enacts the start /end points of the arc-type winding. A winding drawing module draws the arc-type winding pattern according to the center position, the radium, the start point, and the end point from EM and wire-going info from RM. This invention raises the wire composition efficiency and the electric connecting quality of circuit boards.

An electrical terminal for gripping a solder includes a body, an elastic arm extending from the body, which has a contact at the end of the elastic arm, and a welding portion extending downwardly from the body, wherein the welding portion includes a baffle and at least two gripping pieces, the baffle extends from the underside of the body and abuts against the solder, and the gripping pieces extend bendly from the baffle and grip the solder. The present invention ensures the solder is gripped within the welding portion in order to decrease the amount of impurities interfused in the soldering fluid, and prevents the soldering fluid of the electrical terminals from blending with each other when the solder is welded on the printed circuit board. Therefore the solder is kept clear to improve the quality of the electrical connection and strengthen the welding bond.

The application discloses a photomask structure and a method for forming through holes in a negative photoresistive pattern, as well as application. The photoresistive structure comprises shading parts corresponding to the through holes, each shading part is defined with a central shading region and a peripheral shading region distributed around the central shading region, a plurality of vertically hollowed slits are distributed in an array in the peripheral shading regions in at least one radial direction of the shading parts, and the widths of the slits meet: bn is larger than bn+1, where bnand bn+1 are the widths of two adjacent slits and bn is farther away from the central shading region compared with the slit corresponding to bn+1. According to the photomask structure, the method andthe application, the hollowed slits are formed in the array in the shading parts, so that the exposure of the positions of the through holes is increased; gentle slopes are formed on the edges of thethrough holes, so that the quality of electrical connections between pixel electrodes and signal wires of metal layers of thin film transistors is improved, meanwhile, film breakage of protective layers in a back-end process is reduced, and the quality and the yield of a product is improved.

A fabrication method of a semiconductor package structure includes: patterning a metal plate having first and second surfaces; forming a dielectric layer on the metal plate; forming a metal layer on the first surface and the dielectric layer; forming metal pads on the second surface, the metal layer having a die pad and traces each having a bond pad; mounting a semiconductor chip on the die pad, followed by connecting electrically the semiconductor chip to the bond pads through bonding wires; forming an encapsulant to cover the semiconductor chip and the metal layer; removing portions of the metal plate not covered by the metal pads so as to form metal pillars; and performing a singulation process. The fabrication method is characterized by disposing traces with bond pads close to the die pad to shorten the bonding wires and forming metal pillars protruding from the dielectric layer to avoid solder bridging.

A circuit board assembly with a fine electrically connecting structure is proposed, which includes at least a first circuit layer and at least a dielectric layer formed on surfaces of a circuit board and the first circuit layer. At least one opening is formed penetrating through the dielectric layer for exposing the first circuit layer. Also, at least a fine electrically connecting structure which is electrically connected to the first circuit layer is formed in the opening of the dielectric layer. The fine electrically connecting structure is made of a conductive composite material with a net-like interconnection configuration. At least a second circuit layer which includes at least a circuit and an electrical pad is formed on surfaces of the dielectric layer and the fine electrically connecting structure. By such arrangement, the first circuit layer can be electrically connected to the second circuit layer by the means of the fine electrically connecting structure, so as to achieve electrical connection of fine openings.

The invention provides an electronic package and a method of manufacturing the same. The electronic package includes a first line structure, an electronic component coupled to the first line structure, a plurality of conductive pillars coupled to the first line structure, and a cladding layer covering the conductive pillars, wherein the conductive pillar includes a first pillar portion and a second pillar portion; and the width of the first pillar portion is different from the width of the second pillar portion, thereby increasing the bonding property between the conductive pillar and the cladding layer.

The invention discloses a multichip stacking structure and a method for manufacturing the same. The multichip stacking structure comprises a first chip set which is provided with a plurality of first chips and is connected with a chip bearing piece in a stepped mode; the first chip of the topmost layer of the first chip set is connected with a second chip so that the first chip and the second chip are in electric connection with the chip bearing piece through a welding wire; adhesive film over wire technology (Film over Wire, FOW) is utilized to stack a third chip alternated with an insulating adhesive film on the first chip and the second chip so that the insulating adhesive film covers part of the welding wire end of the first chip of the topmost layer of the first chip set and at least one part of the second chip and is in electric connection with the third chip and the chip bearing piece through the welding wire, thereby solving the problem that when the second chip with planar dimension far less than that of the first chip is directly stacked on the first chip in the prior art, the height of the whole structure and the difficulty of wire welding operation are increased.

The invention discloses a crystal grain structure of light-emitting diode and a method for manufacturing a bottom electrode of the crystal grain structure. The crystal grain structure of the light-emitting diode comprises a substrate, a light-emitting layer, at least one bottom surface electrode, at least one top surface electrode and at least one side surface electrode, wherein the light-emitting layer is formed on the top surface of the substrate; the bottom surface electrode is formed on the bottom surface of the substrate; the top surface electrode is formed on the top surface of the light-emitting layer; and the side surface electrode is formed on the bottom side surface of the substrate. In the method for manufacturing a bottom electrode, the crystal grain structure of the light-emitting diode comprises a substrate, a light-emitting layer, at least one bottom surface electrode, at least one top surface electrode and at least one side surface electrode, wherein the light-emitting layer is formed on the top surface of the substrate; the bottom surface electrode is formed on the bottom surface of the substrate; the top surface electrode is formed on the top surface of the light-emitting layer; and the side surface electrode is formed on the bottom side surface of the substrate. The method for manufacturing the bottom electrode comprises the following steps of: forming a groove with a certain depth on the bottom surface of a substrate of a light-emitting diode wafer; plating a metal film on a bottom surface and inside the groove with a metal plating technology; and cutting the wafer into crystal grains along the groove. The invention has the advantages of improving the electric connection quality between a die bonding adhesive and crystal grains of a light-emitting diode.

A touch panel comprises, a substrate, a layered structure formed in a sensing region defined on one side of the substrate, the layered structure including at least a first conductor layer made of a first hardened conductive ink, a second conductor layer made of a second hardened conductive ink and an insulating layer disposed therebetween, and an external connection terminal formed outside the sensing region on the one side of the substrate, wherein the external connection terminal comprises a first terminal layer made of the first hardened conductive ink and a second terminal layer made of the second hardened conductive ink, such that the first terminal layer and the second terminal layer are directly overlaid on each other.

A package substrate and a method for forming the package substrate are disclosed. The package substrate includes an interposer having a plurality of conductive through vias and a first insulating layer formed on the sidewalls of the conductive through vias, a second insulating layer formed on one side of the interposer, and a plurality of conductive vias formed in the second insulating layer and electrically connected to the conductive through vias. By increasing the thickness of the first insulating layer, the face diameter of the conductive through vias can be reduced, and the layout density of the conductive through vias in the interposer can thus be increased.