摘要:
A packaging method is disclosed that comprises attaching a plurality of dice, each having a plurality of bonding pads disposed on an active surface, to an adhesive layer on a substrate. A polymer material is formed over at least a portion of both the substrate and the plurality of dice and a molding apparatus is used on the substrate to force the polymer material to substantially fill around the plurality of dice. The molding apparatus is removed to expose a surface of the polymer material and a plurality of cutting streets is formed on an exposed surface of the polymer material. The substrate is removed to expose the active surface of the plurality of dice.
摘要:
A chip package includes a thermal enhanced plate, contacts around the thermal enhanced plate and electrically insulated from the thermal enhanced plate, a film-like circuit layer disposed on the contacts and the thermal enhanced plate, a conductive adhesive layer, a first molding, and at least one chip disposed on the film-like circuit layer. The conductive adhesive layer is disposed between the contacts and the film-like circuit layer electrically connected to the contacts through the conductive adhesive layer. The chip has a back surface, an active surface and many bumps disposed thereon, and the chip is electrically connected to the film-like circuit layer via the bumps. The first molding at least encapsulates a portion of the thermal enhanced plate, the conductive adhesive layer, parts of the contacts and at least a portion of the film-like circuit layer. Therefore, heat dissipation efficiency of the light emitting chip package is improved.
摘要:
The invention mainly relates to a power on reset signal generating circuit and method thereof wherein said reset signal remains as a constant being independent of rising or descending power or repeated switching. The power on reset signal circuit can be implemented by a conventional RC power on reset circuit together with a coupled N-type transistor switch to charge or discharge the capacitor inside the conventional RC power on reset circuit.
摘要:
A multi-chip stacked package structure, comprising: a lead-frame having a top surface a back surface, the inner leads comprising a plurality of first inner leads and a plurality of second inner leads in parallel; a first chip fixedly connected to the back surface of the lead-frame, and the first chip having an active surface and a plurality of first pads adjacent to the central area of the active surface; a plurality of first metal wires electrically connected the first inner leads and the second inner leads and the first pads on the active surface of the first chip; a second chip fixedly connected to the top surface of the lead-frame, and the second chip having an active surface and a plurality of second pads adjacent to the central area of the active surface; a pair of the spacers provided on the thermal fin of the lead-frame; a plurality of second metal wires electrically connected to the top surface of first inner leads and the second inner leads and the second pads on the active surface of the second chip; and a package body encapsulated the first chip, the plurality of metal wires the second chip, the plurality of pads, the first inner leads and the second inner leads and to expose the outer leads.
摘要:
An antenna applied to a wireless network device comprises a base, a pair of embedded portions, and an antenna portion. The base has two sides opposite to each other. Each of the embedded portions has a side wall portion and a locking wing portion. The side wall portion is substantially vertical to the base and connected to the sides of the base, while the locking wing portion is connected to the side wall portion, substantially parallel to the base, and spaced apart from the base with a first height. The antenna portion is provided with a ground member, a radiation member, and a signal member. The ground member is substantially vertical to the base, connected to one of the two sides of the base, and spaced apart from the embedded portion with an interval. The radiation member is connected to the ground member, substantially parallel to the base, and spaced apart from the base with a second height. The signal member is connected to the radiation member, substantially vertical to the base, and formed with a free end separated from the base. When the antenna is positioned in at least one slot formed on a substrate of the wireless network device, the radiation member is spaced apart from the substrate with a height difference between the second height and the first height.
摘要:
A chip package structure includes a chip-placed frame that having an adhesive layer thereon; a chip includes a plurality of pads on an active surface thereon, and is provided on the adhesive layer; a package structure is covered around the four sides of the chip-placed frame, and the height of the package structure is larger than the height of the chips; a plurality of patterned metal traces is electrically connected to the plurality of pads, another end is extended out to cover the surface of the package structure; a patterned protective layer is covered on the patterned metal traces and another end of the patterned metal traces is exposed; a plurality of patterned UBM layer is formed on the extended surface of the patterned metal traces; and a plurality of conductive elements is formed on the patterned UBM layer and is electrically connected to one end of the exposed portion of the patterned metal traces.
摘要:
An antenna applied to a wireless network device comprises a base, a pair of embedded portions, and an antenna portion. The base has two sides opposite to each other. Each of the embedded portions has a side wall portion and a locking wing portion. The side wall portion is substantially vertical to the base and connected to the sides of the base, while the locking wing portion is connected to the side wall portion, substantially parallel to the base, and spaced apart from the base with a first height. The antenna portion is provided with a ground member, a radiation member, and a signal member. The ground member is substantially vertical to the base, connected to one of the two sides of the base, and spaced apart from the embedded portion with an interval. The radiation member is connected to the ground member, substantially parallel to the base, and spaced apart from the base with a second height. The signal member is connected to the radiation member, substantially vertical to the base, and formed with a free end separated from the base. When the antenna is positioned in at least one slot formed on a substrate of the wireless network device, the radiation member is spaced apart from the substrate with a height difference between the second height and the first height.
摘要:
The invention mainly relates to a power on reset signal generating circuit and method thereof wherein said reset signal remains as a constant being independent of rising or descending power or repeated switching. The power on reset signal circuit can be implemented by a conventional RC power on reset circuit together with a coupled N-type transistor switch to charge or discharge the capacitor inside the conventional RC power on reset circuit.
摘要:
A fuse option circuit including a fuse, a control switch, a latch, and a logical operational controller is provided. The latch stores a selected level. The logical operational controller outputs a selected result signal and feedbacks a control signal to the control switch. The level of the control signal determines whether the control switch is on or off. Therefore, the required level is input to the latch and the working mode having an ultra low current is selected. Furthermore, when the fuse is in an untrimmed state, the level of the selected result signal could be selected by a reset pulse signal of the latch in order to test a product. Afterward, it is determined whether the fuse is trimmed or not. When the fuse is in a trimmed state, the level of the selected result signal is established by a rising edge of the reset pulse signal.
摘要:
A stacked package structure with leadframe having bus bar, comprising: a leadframe composed of a plurality of inner leads arranged in rows facing each other, a plurality of outer leads, and a die pad, in which the die pad is provided between the inner leads and is vertically distant from the inner leads; a bus bar being provided between the inner leads and the die pad; an offset chip-stacked structure stacked by a plurality of chips, the offset chip-stacked structure being fixedly connected to a first surface of the die pad and electrically connected to the inner leads; and an encapsulant covering the offset chip-stacked structure, the inner leads, the first surface of die pad, and the upper surface of bus bar, the second surface of die pad and the lower surface of bus bar being exposed and the outer leads extending out of the encapsulant.