Abstract:
An IC package primarily includes a chip, a plurality of electrical connecting components, and a chip carrier including a substrate, a die-attaching layer, and at least one bonding wire. The substrate has a top surface and a bottom surface wherein the top surface includes a die-attaching area for being disposed with the die-attaching layer. The chip is attached to the die-attaching area by the die-attaching layer and is electrically connected to the substrate by the electrical connecting components. Both ends of the bonding wire are bonded respectively to two interconnecting fingers on the top surface of the substrate, and at least a portion of the bonding wire is encapsulated in the die-attaching layer such that some wirings or vias formed on a conventional substrate are not needed. Therefore, the substrate can have a simpler structure and fewer numbers of wiring layers; consequently, the substrate cost can be reduced.
Abstract:
An IC package primarily comprises a substrate, a die-attaching layer, a chip, at least a bonding wire, and a plurality of electrical connecting components. The substrate has a top surface and a bottom surface where the top surface includes a die-attaching area for disposing the die-attaching layer. The chip is attached to the die-attaching area by the die-attaching layer and is electrically connected to the substrate by the electrical connecting components. Both ends of the bonding wire are bonded to two interconnecting fingers on the top surface of the substrate where at least a portion of the bonding wire is encapsulated in the die-attaching layer to replace some wirings or vias inside a conventional substrate. Therefore, the substrate has simple and reduced wiring layers, i.e., to reduce the substrate cost. A chip carrier of the corresponding IC package is also revealed.
Abstract:
An IC package primarily comprises a substrate, a die-attaching layer, a chip, at least a bonding wire, and a plurality of electrical connecting components. The substrate has a top surface and a bottom surface where the top surface includes a die-attaching area for disposing the die-attaching layer. The chip is attached to the die-attaching area by the die-attaching layer and is electrically connected to the substrate by the electrical connecting components. Both ends of the bonding wire are bonded to two interconnecting fingers on the top surface of the substrate where at least a portion of the bonding wire is encapsulated in the die-attaching layer to replace some wirings or vias inside a conventional substrate. Therefore, the substrate has simple and reduced wiring layers, i.e., to reduce the substrate cost. A chip carrier of the corresponding IC package is also revealed.
Abstract:
A thin IC package to enhance heat dissipation from the back surface of a chip, comprises a substrate, the chip, and an encapsulant where the substrate has an upper surface, a lower surface, and an opening to accommodate the chip. The chip is disposed in the opening of the substrate where the chip has an active surface, a back surface, and a plurality of bonding pads disposed on the active surface to electrically connect to the substrate. At least a slot is formed on the back surface of the chip. Preferably, a plurality of the slots on the back surface of the chip form a plurality of integral thermal fins therefrom. The encapsulant are formed on the upper surface of the substrate and in the opening to embed the chip with the back surface and the slots being exposed from the encapsulant to enhance the heat dissipation from the back surface of the chip and to enhance chip strength.
Abstract:
The present invention provides a non-binary Viterbi data processing system comprising a non-binary Viterbi processor, a path metric memory, and a memory access device. The non-binary Viterbi processor is used for obtaining the path metrics of a set of states according to a Viterbi decoding procedure. The path metric memory comprises memory units of the same amount as the states. The memory units are depicted by combinations of symbols for storing the corresponding path metrics of the set of states. The memory access device is used for reading out the path metrics from the path metric memory for calculation by the non-binary Viterbi processor, and for writing the updated path metrics back to the path metric memory. Therefore, merely the same amounts of the memory units as the states in the path metric memory are required for update of the set of path metrics.
Abstract:
The present invention relates to an audio data synthesis system for sequentially processing a first predetermined number of audio data to synthesize a digital audio signal cumulatively. The system comprises a first memory, a first processor, an audio data processing unit, and a second memory. The first memory is for storing a plurality of audio data. The first processor is for generating an audio processing request for requesting to process a second predetermined number of audio data. The audio data processing unit is for receiving the audio processing request, accessing the second predetermined number of audio data stored in the first memory, and calculating every two neighboring audio data to get data processing values, and after calculating all the second predetermined number of audio data, then obtaining a third predetermined number of data processing values. The second memory is for storing the third predetermined number of audio data.
Abstract:
A chip package structure is provided. The chip package structure comprises a first substrate, a second substrate and a plurality of chips. Therein, one of the chips is connected to the first substrate and electrically connected to the first substrate through a via hole of the first substrate. Thereby, the second substrate does not need the via hole for electrical connection of chips and thus, the surface thereof is adapted to remain intact to allow for the disposition of conductive balls throughout the surface.
Abstract:
A chip package including a base, a chip, a molding compound and a plurality of outer terminals is provided. The base is essentially consisted of a patterned circuit layer having a first surface and a second surface opposite to each other and a solder mask disposed on the second surface, wherein the solder mask has a plurality of first openings by which part of the patterned circuit layer is exposed. The chip is disposed on the first surface and is electrically connected to the patterned circuit layer. The molding compound covers the pattern circuit layer and fixes the chip onto the patterned circuit layer. The outer terminals are disposed in the first openings and electrically connected to the patterned circuit layer.
Abstract:
A quad flat non-leaded package structure including a die pad, a plurality of leads, a chip, and a molding compound is provided. The die pad has a top surface and an opposite bottom surface, and the leads are disposed around the die pad. A concave portion is disposed at the end of each leads. The chip is disposed on the top surface of the die pad and is electrically connected to the leads. The molding compound encapsulates the chip, a portion of the leads and the die pad, and fills the gaps between the leads.
Abstract:
A chip package without a core, including a patterned circuit layer, a chip, a solder mask, a molding compound and multiple outer terminals, is provided. The patterned circuit layer has a first surface and a second surface opposite to each other. The chip disposed on the first surface is electrically connected to the patterned circuit layer. The solder mask disposed on the second surface has a plurality of first openings by which part of the patterned circuit layer is exposed. The molding compound with a plurality of through holes cover the pattern circuit layer and fix the chip onto the patterned circuit layer. Each outer terminal disposed in the through hole is electrically connected to the patterned circuit layer.