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142 results about "Fan-out" patented technology

In digital electronics, the fan-out is the number of gate inputs that the output of a logic gate drives. In most designs, logic gates are connected to form more complex circuits. While no logic gate input can be fed by more than one output, it is common for one output to be connected to several inputs. The technology used to implement logic gates usually allows a certain number of gate inputs to be wired directly together without additional interfacing circuitry. The maximum fan-out of an output measures its load-driving capability: it is the greatest number of inputs of gates of the same type to which the output can be safely connected.

Optical engine and forming method thereof

The invention relates to an optical engine and a forming method thereof, the optical engine comprises an adapter plate, an electric chip, an optical chip and a packaging substrate, the adapter plate comprises a first surface, a second surface opposite to the first surface, and a first through hole penetrating through the first surface and the second surface, the first surface of the adapter plate and the front surface of the electric chip are mounted on the optical chip and are electrically connected with the optical chip, and the second surface of the adapter plate is mounted on the packaging substrate and is electrically connected with the packaging substrate. According to the 3D fan-out type packaging optical engine integrated with the TSV adapter plate, the problems that an existing 3D fan-out type packaging optical engine is large in module size and cannot support the extremely high number of channels can be solved at the same time, and the problems that an existing 3D integrated optical engine with the TSV is high in cost and chip incoming materials are fixed can be solved at the same time.
Owner:NAT CENT FOR ADVANCED PACKAGING CO LTD

Wiring substrate, manufacturing method thereof and electronic device

According to the wiring substrate, the manufacturing method thereof and the electronic device, the wiring substrate comprises a substrate body, the substrate body comprises a first surface and a second surface which are oppositely arranged, the second surface comprises a binding area extending in the first direction and fan-out areas located on the two sides of the binding area in the second direction, and a plurality of via holes are formed in the fan-out areas; the first direction intersects with the second direction; the multiple signal lines are located on the side where the first surface is located, and orthographic projections of the multiple signal lines on the substrate penetrate through the binding area and the fan-out area in the second direction; the connecting lines are located on the side where the second surface is located, the connecting lines extend from the fan-out area to the binding area, and the connecting lines are coupled with the signal lines through the via holes.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Fan-out type dual-polarization packaging antenna array integrated with heterogeneous chipset

The invention relates to the field of packaged antenna arrays, and particularly discloses a fan-out type dual-polarization packaged antenna array integrated with a heterogeneous chipset. The packaging antenna array comprises three packaging bodies which are arranged from top to bottom, and a dual-polarized antenna array, a feed network and a heterogeneous chipset embedded in the packaging bodies are integrated in the packaging antenna array, so that high-density fan-out integration of the dual-polarized antenna array and the heterogeneous radio frequency front-end chipset is realized; the phased array module has lower transmission loss and higher integration level, not only can effectively reduce the size and cost of the system, but also has the characteristics of simple assembly process, high consistency, easy realization of random expansion of the array scale and the like, and can be applied to a large-scale phased array system as a standard module.
Owner:THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION

Wiring substrate and manufacturing method therefor, and electronic device

The present disclosure provides a wiring substrate and a manufacturing method therefor, and an electronic device. The wiring substrate comprises: a base substrate, comprising a first surface and a second surface arranged opposite to each other, wherein the second surface comprises a binding area extending along a first direction and fan-out areas located on two sides of the binding area in a second direction, a plurality of via holes are formed in the fan-out areas, and the first direction intersects with the second direction; a plurality of signal lines located on the side where the first surface is located, wherein the orthographic projections of the plurality of signal lines on the base substrate penetrate through the binding area and the fan-out areas along the second direction; and a plurality of connecting lines located on the side where the second surface is located, wherein the plurality of connecting lines extend from the fan-out areas to the binding area, and the plurality of connecting lines and the plurality of signal lines are coupled by means of the plurality of via holes.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Stacked devices and methods of fabrication

Stacked devices and methods of fabrication are provided. Die-to-wafer (D2W) direct-bonding techniques join layers of dies of various physical sizes, form factors, and foundry nodes to a semiconductor wafer, to interposers, or to boards and panels, allowing mixing and matching of variegated dies in the fabrication of 3D stacked devices during wafer level packaging (WLP). Molding material fills in lateral spaces between dies to enable fan-out versions of 3D die stacks with fine pitch leads and capability of vertical through-vias throughout. Molding material is planarized to create direct-bonding surfaces between multiple layers of the variegated dies for high interconnect density and reduction of vertical height. Interposers with variegated dies on one or both sides can be created and bonded to wafers. Logic dies and image sensors from different fabrication nodes and different wafer sizes can be stacked during WLP, or logic dies and high bandwidth memory (HBM) of different geometries can be stacked during WLP.
Owner:ADEIA SEMICONDUCTOR BONDING TECHNOLOGIES INC

Multi-chip or multi-chiplet fan-out device for laminate and leadframe packages

An electronic assembly component may comprise at least one fan-out device comprising a first encapsulant disposed around a memory device or function and a processor device or function, and a fan-out interconnect structure disposed over the first encapsulant and the at least one fan-out device. Input output pads may be disposed over the fan-out interconnect structure. A structural support may comprise electrical routing and structural support pads, the structural support further comprising at least one mounting site to which the at least one fan-out device is coupled. An electrical connector may be configured to electrically couple the input output pads of the at least one fan-out device to the structural support pads. A second encapsulant may be disposed over at least a portion of the at least one fan-out device and the structural support.
Owner:DECA TECH USA INC

Circuit board assembly and electronic equipment

The invention provides a circuit board assembly and an electronic device, the circuit board assembly comprises a board main body and at least one chip, the board main body comprises a first surface and a second surface which are opposite, the first surface comprises at least one chip area, each chip is arranged on the corresponding chip area, and a power pin of a core area of the chip is fanned out through a via hole in the corresponding chip area. A plurality of liquid cooling channels corresponding to the chips are arranged in the plate body, and heat generated by the chips is rapidly absorbed by cooling media filled in the liquid cooling channels. The problem that the high integration level and the heat dissipation design of the circuit board assembly related to the high-power chip and the electronic equipment are difficult to be compatible is solved, the integration level and the miniaturization of the circuit board assembly and the electronic equipment are improved, and the production cost is further reduced.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

High-reliability and high-heat-dissipation hard fully-encapsulated fan-out packaging method

The invention belongs to the technical field of chip packaging, and particularly relates to a high-reliability and high-heat-dissipation hard fully-encapsulated fan-out packaging method. Comprising the following steps: providing a hard substrate, and etching a plurality of concave grooves in the front surface of the hard substrate; providing a plurality of functional chips; wherein the plurality of functional chips are the same chip or a plurality of different chips; correspondingly mounting the plurality of functional chips in the plurality of concave grooves through a wafer reconstruction technology to form a reconstructed wafer, and exposing the front surfaces of the plurality of functional chips; preparing a rewiring layer on the front surface of the reconstructed wafer; preparing a conductive bump on the front surface of the rewiring layer; cutting the reconstructed wafer to form a plurality of chip packaging structures; preparing packaging layers on the front surfaces and the side surfaces of the plurality of chip packaging structures so as to form a plurality of hard fully-packaged fan-out packaging structures; the reliability and the heat dissipation capability of the fan-out type packaging structure are improved.
Owner:58TH RES INST OF CETC

An embedded circuit board and a method for manufacturing the same

PendingCN122662068Aimprove bindingOffset interface stressMechanical engineeringEmbedded system
The application belongs to the technical field of circuit board manufacturing, and particularly relates to an embedded circuit board and a preparation method thereof. The preparation method of the embedded circuit board comprises the following steps: obtaining an embedded module, manufacturing a first bonding layer on at least part of the surface of the embedded module; placing the embedded module in a containing groove formed by communication of the grooves, and pressing the laminated plate structure to embed the embedded module in the containing groove; pressing a second build-up layer to fan out signals of the embedded module to the first build-up layer; forming an insulating layer and a connecting layer on the second build-up layer to obtain the embedded circuit board. The first bonding layer on the surface of the embedded module has high bonding force and stress buffering effect with the embedded module, an SIC chip and resin, and can be used as an intermediate buffering layer to connect the embedded module and a PP layer, thereby effectively reducing the problem of delamination due to insufficient bonding force.
Owner:SHENNAN CIRCUITS

A fan-out type dual-polarized packaged antenna array integrating a heterogeneous chipset

The present invention relates to the field of packaged antenna arrays, and specifically discloses a fan-out type dual-polarized packaged antenna array integrating a heterogeneous chipset. The packaged antenna array includes three packages arranged from top to bottom, internally integrating a dual-polarized antenna array, a feeding network, and a heterogeneous chipset embedded inside the packages. The present invention realizes the high-density fan-out integration of the dual-polarized antenna array and the heterogeneous radio frequency front-end chipset, has lower transmission loss and higher integration, can not only effectively reduce the system volume and cost, but also has the characteristics of simple assembly process, high consistency, and easy realization of arbitrary expansion of the array scale, and can be applied as a standard module to large-scale phased array systems.
Owner:THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION

High-density signal delivery

Systems and techniques that facilitate signal-delivery systems for cryogenic refrigerators are provided. In an embodiment, a structure can comprise a plurality of cables between a lower interconnect assembly and a fanout assembly, wherein the fanout assembly is structured such that each cable of the plurality of cables fans out radially from an inlet to an edge of a vacuum tight casing.
Owner:INTERNATIONAL BUSINESS MACHINE CORPORATION +1

VLC system with enhanced cooling features

A vertical line card (VLC) system is disclosed. In one aspect, a VLC system includes a vertically-oriented printed circuit board (PCB), a vertically-oriented integrated circuit (IC) mounted to the PCB, and a cage assembly having cages arranged in a splayed layout so that the cages angularly fan out with respect to the IC.
Owner:CISCO TECHNOLOGY INC

Fan-out wafer level packaging unit

The utility model discloses a fan-out type wafer level packaging unit. The fan-out type wafer level packaging unit comprises a carrier plate, at least one bare chip, a first dielectric layer, at least one conductive column, a second dielectric layer, a plurality of first conductive connection lines, a first outer protective layer, a third dielectric layer, a plurality of second conductive connection lines and a second outer protective layer, wherein the die can be electrically connected to the outside by at least one first bonding pad around a chip region on the second side of the die; wherein the die can be electrically connected to the outside through a second bonding pad in at least one opening of the second outer protective layer; wherein each first conductive connection line and each second conductive connection line are manufactured by a technology of filling metal paste into the grooves and then grinding and forming the conductive connection lines, so that the problems that the manufacturing cost is high and environmental protection is not facilitated when each conductive connection line is manufactured by the existing fan-out packaging technology are solved.
Owner:WALTON ADVANCED ENG INC

Fan-out package structure and its manufacturing method

Embodiments of the present invention provide a fan-out package structure and a preparation method thereof, relating to the technical field of semiconductor packaging. A main chip is disposed in a first plastic package body. Meanwhile, a first groove is formed on a first surface of the first plastic package body, a first mounted chip is mounted in the first groove, and a first conductive pillar is disposed in the first plastic package body to achieve electrical connection of the main chip. Compared with the conventional technology, in the present invention, the main chip and the first mounted chip are stacked and embedded in the first plastic package body, and the first mounted chip is stacked above the main chip in space, so that the package size can be greatly reduced compared with the flat fan-out structure, the package area is reduced, which is beneficial to the miniaturization of products. At the same time, the main chip is connected to the first wiring combination layer through the first conductive pillar, which can greatly reduce the transmission rate and make the stacking performance of its fan-out products more excellent.
Owner:FOREHOPE ELECTRONICS NINGBO CO LTD

Module for bonding fan-out wafer level packaging unit on electronic component through wire bonding

The utility model discloses a module for bonding a fan-out type wafer level packaging unit on an electronic component through wire bonding. The module comprises a carrier plate, a first bare chip, a first dielectric layer, a plurality of first conducting circuits, a second dielectric layer, a plurality of second conducting circuits, a second bare chip, an electronic component, at least one first bonding wire, at least two second bonding wires and at least one third bonding wire, wherein each second conducting circuit is formed by grinding metal paste filled in each second groove of the second dielectric layer, and each second conducting circuit forms a welding pad in each second groove; wherein the first bare crystal can be electrically connected with the outside through the welding pads around the chip area on the second surface of the first bare crystal, so that the problems that the fan-out packaging technology in the existing module is easy to generate higher manufacturing cost and is not beneficial to environmental protection when manufacturing the conducting circuits are effectively solved.
Owner:WALTON ADVANCED ENG INC

Semiconductor Device and Method of Forming AIP Package Structure from Separate Assemblies with Bonding Material

A semiconductor device has a semiconductor assembly and an antenna substrate formed separate from the semiconductor assembly and mounted to the semiconductor assembly. A bonding material is disposed between the antenna substrate and semiconductor assembly. An encapsulant is deposited over the antenna substate. The encapsulant may be planar or have encapsulant bumps. The bonding material extends over a side surface of the antenna substrate. The antenna substrate has a first antenna substrate and a second antenna substrate disposed over the semiconductor assembly. The first antenna substrate is offset with respect to the second antenna substrate in the horizontal and / or vertical directions. The antenna substrate can fan out from the semiconductor assembly. The semiconductor assembly can have multiple layers of core material with different coefficient of thermal expansions. A heat sink or shielding layer can be formed over the antenna substrate and semiconductor assembly.
Owner:STATS CHIPPAC LTD

Wafer level fan out semiconductor device and manufacturing method thereof

A wafer level fan out semiconductor device and a manufacturing method thereof are provided. A first sealing part is formed on lateral surfaces of a semiconductor die. A plurality of redistribution layers are formed on surfaces of the semiconductor die and the first sealing part, and solder balls are attached to the redistribution layers. The solder balls are arrayed on the semiconductor die and the first sealing part. In addition, a second sealing part is formed on the semiconductor die, the first sealing part and lower portions of the solder balls. The solder balls are exposed to the outside through the second sealing part. Since the first sealing part and the second sealing part are formed of materials having thermal expansion coefficients which are the same as or similar to each other, warpage occurring to the wafer level fan out semiconductor device can be suppressed.
Owner:AMKOR TECH SINGAPORE HLDG PTE LTD

Chip interposer wiring method and device based on integer linear programming

The embodiment of the invention discloses a chip interposer wiring method and device based on integer linear programming. A specific embodiment of the method comprises the steps that a real coordinate set of salient points of a current chip is determined according to physical information of the current chip, and the physical information of the current chip comprises center coordinate information of the current chip, current rotation angle information and current rotation center coordinate information; according to the current chip salient point real coordinate set, target salient point determination is carried out on each key salient point in the key salient point set to generate a target salient point, and a target salient point set is obtained; according to the target salient point set, generating a fan-out edge set corresponding to the physical information of the current chip and a candidate edge set of the target salient point; generating a fan-out edge distribution salient point set according to the candidate edge set and the fan-out edge set; and performing inter-chip wiring path distribution on the fan-out edge wiring to generate an inter-chip fan-out edge wiring distribution path. According to the embodiment of the invention, the time required for completing the wiring of the interposer is reduced, and the wiring quality of multi-chip interconnection is improved.
Owner:HENAN SONGSHAN LAB IND RES INST CO LTD LUOYANG BRANCH

Chip, electronic device

The application provides a chip and an electronic device, the chip comprises a Die, a substrate structure and a Ball from top to bottom, the substrate structure comprises a top layer substrate, a middle layer substrate and a bottom layer substrate which are stacked with each other, the top layer substrate is connected with the Die, and the bottom layer substrate is connected with the Ball; a communication signal of the chip is fanned out from the middle layer substrate and connected to the bottom layer substrate through a via hole downwardly. By adopting the scheme, the wiring space can be increased without increasing the substrate area and the number of layers, the wiring space of a single layer substrate is improved, the number of layers of the substrate is reduced, and the substrate cost and the chip cost are significantly saved.
Owner:BEIJING CHENZHI SEMICON TECH CO LTD

Fan-out wafer level packaging unit

The invention discloses a fan-out type wafer level packaging unit which comprises a carrier plate, at least one bare chip, a first dielectric layer, at least one conductive column, a second dielectric layer, a plurality of first conductive connection lines, a first outer protection layer, a third dielectric layer, a plurality of second conductive connection lines and a second outer protection layer. Wherein the die can be electrically connected to the outside by at least one first bonding pad around a chip region on the second side of the die; wherein the die can be electrically connected to the outside through a second bonding pad in at least one opening of the second outer protective layer; wherein each first conductive connection line and each second conductive connection line are manufactured by a technology of filling metal paste into the grooves and then grinding and forming the conductive connection lines, so that the problems that the manufacturing cost is high and environmental protection is not facilitated when each conductive connection line is manufactured by the existing fan-out packaging technology are solved.
Owner:WALTON ADVANCED ENG INC

IP core architecture for triple-redundant MDS array encoding and decoding based on systolic array

The present invention relates to the fields of computer application technology and network coding, and more particularly to an IP core architecture for implementing triple-redundant MDS array encoding and decoding based on a systolic array. The architecture comprises a PE module, a Weight FIFO module, an encoding and decoding module, and a driver module. L PE modules are arranged horizontally to form a one-dimensional systolic array. The one-dimensional systolic array outputs R redundant packets at intervals of K*L cycles. The PE modules include registers, accumulators, and XOR units. The calculation results and valid signals of the previous PE module are transmitted to the next PE module for calculation after passing through the registers. The Weight FIFO module is used to temporarily store coefficient matrix information and periodically fan out the input ports of all PE modules corresponding to the one-dimensional systolic array. The present invention implements cyclic shift matrix multiplication operations through the systolic array, reducing computational complexity while ensuring a fixed encoding and decoding delay, and improving hardware scalability, throughput, and energy efficiency.
Owner:NANJING WANBAN SHANGPIN INFORMATION TECH CO LTD

Fan-out package structure of multi-element device and packaging method thereof

The application discloses a fan-out packaging structure and method of multi-component devices, which comprises at least two components with different thicknesses. The component with smaller thickness is firstarily molded, then the metal bumps are made on the surface of each component, and then each component is attached to the substrate in an upward manner and secondarily molded. The re-routed layer electrically connected with the metal bumps is made. The method can not only be compatible with the thickness difference of the two components, but also effectively overcome the difficulty caused by the uneven wafer surface due to the component bump in the subsequent photoetching step and chemical mechanical polishing process.
Owner:XIAMEN SKY SEMICON TECH CO LTD

Fan-out package structure with inter-chip fine internal interconnection line and manufacturing method thereof

Provided are a fan-out package structure and a manufacturing method thereof. The fan-out package structure provided in the embodiments of the present disclosure, and the fan-out package structure obtained by the manufacturing method provided in the embodiments of the present disclosure have an inter-chip fine interconnection line between functional surfaces of chips, so that fine interconnection pin pads of adjacent chips form electrical interconnection.
Owner:GUANGDONG INST OF SEMICON IND TECH

Ground data transmission and fan out for a terminal of a satellite communication system

A system includes a transmitter and a processor. The processor is configured to receive true time at a terminal; acquire a first communication link with a satellite using a first protocol; determine a second communication link with the satellite using a second protocol; and provide the true time to the satellite in a constellation using the transmitter.
Owner:LOGOS SPACE SERVICES INC

Fan-out chip packaging structure

The utility model discloses a fan-out type chip packaging structure. The fan-out type chip packaging structure comprises a rewiring layer, the performance chip and the component are inversely arranged on one side of the rewiring layer, and the other side of the rewiring layer is soldered with a tin bump; the plastic packaging layer is positioned above the rewiring layer and wraps the performance chip and the component; a metal layer is formed on the back sides of the performance chip and the component to cover the plastic package layer, so that the heat dissipation efficiency is improved; according to the packaging structure, the rewiring layer on which the bumps are soldered can be further mounted on one surface of the substrate, and tin balls are soldered on the other surface of the substrate. According to the fan-out chip packaging structure provided by the utility model, a capacitor or other components are mounted while the performance chip is inversely mounted on the rewiring layer through a surface mounting process, so that a power supply network is stabilized, signal interference between core particles is avoided, the size of the packaging structure is optimized, the design of the back metal layer is added, and the packaging efficiency is improved. The problem of difficulty in heat dissipation is effectively solved, and the design of the packaging structure greatly improves the reliability of the HDFO packaging structure.
Owner:JIANGSU SILICON INTEGRITY SEMICON TECH CO LTD

Fan-out wafer level package for semiconductor devices

The invention relates to a fan-out wafer level package of a semiconductor device. In a general aspect, the present disclosure provides a fan-out wafer level package (FOWLP) that may include a semiconductor die having: an active surface; a backside surface; a plurality of side surfaces, each side surface of the plurality of side surfaces extending between the active surface and the backside surface; a plurality of conductive bumps disposed on the active surface; and an insulating layer disposed on a first portion of the active surface between the conductive bumps. The FOWLP may also include a molding compound encapsulating the backside surface, the plurality of side surfaces, and a second portion of the active surface between the conductive bump and a peripheral edge of the active surface. The FOWLP may also include a signal distribution structure disposed on the conductive bumps, the insulating layer, and the molding compound. The signal distribution structure may be configured to provide respective electrical connections to the plurality of conductive bumps.
Owner:SEMICON COMPONENTS IND LLC

Fan-out wafer level packaging unit

PendingCN121398631ADielectric layerPhysics
The invention discloses a fan-out type wafer level packaging unit which comprises a carrier plate, a first dielectric layer, at least one antenna, at least one bare chip, a second dielectric layer, at least one conductive column, a plurality of first conductive connection lines, a third dielectric layer, a plurality of second conductive connection lines and an outer protection layer. Wherein each first conductive connection line and each second conductive connection line are formed by a technology of filling metal paste into the groove and then grinding and forming the conductive connection lines; wherein each die is electrically connected with each antenna; wherein the bare crystal can be electrically connected with the outside through each welding pad around the chip area on the second surface of the bare crystal, so that the fan-out type wafer level packaging unit is formed, and the problems that high manufacturing cost is easily generated and environmental protection is not facilitated when each conducting circuit is manufactured by the existing fan-out type packaging technology are solved.
Owner:WALTON ADVANCED ENG INC

Circuit board and manufacturing method thereof

The embodiment of the invention provides a circuit board and a manufacturing method thereof, and the circuit board comprises a first core board, a second core board and a third core board which are sequentially stacked, the second core board is provided with an installation groove which penetrates in the thickness direction, and one side, facing the second core board, of the third core board is provided with a first positioning hole; the embedded device is arranged in the mounting groove, the embedded device comprises a positioning protrusion, and at least part of the positioning protrusion is located in the first positioning hole so as to limit movement of the embedded device. According to the circuit board provided by the embodiment of the invention, through the cooperation of the first positioning hole and the positioning bulge, the slippage of the embedded device in the circuit board pressing process is reduced, so that the position deviation of the embedded device and the embedded device before pressing is reduced, the position deviation between the connecting channel and the chip is favorably controlled within an allowable range during the subsequent processing of the connecting channel, and the reliability of the circuit board is improved. Therefore, the precision and stability of connection with the via hole during subsequent chip signal fan-out are improved.
Owner:NANTONG SHENNAN CIRCUIT CO LTD

Deterministic delay and arbitrary range delay compensation adjustment device between multiple DA channels

This invention discloses a deterministic delay and arbitrary range delay compensation adjustment architecture between multiple DA channels. In this architecture, each DAC consists of a set of ADC_CLK and SYSREF, and each FPGA consists of a set of REF_CLK and SYSREF. This architecture is used to design the clock block diagram and the deterministic delay synchronization output rate of multiple DACs. The frequency multiplier multiplies the reference input to output DAC_CLK and REF_CLK. DAC_CLK is set according to the DAC operating frequency, and REF_CLK is determined according to the operating range of the frequency divider. In this system, REF_CLK = DAC_CLK / N (N<=40). The frequency divider receives REF_CLK1 and divides it to output the required SYSREF. The clock fan-out fans out DAC_CLK into N DAC_CLKs according to the number of DACs. Through reasonable clock arrangement, only the clock fan-out chip can be used when the number of DACs is increased, ensuring that the output time remains stable after multiple power-on cycles while reducing hardware costs.
Owner:成都中微达信科技有限公司

Three-dimensional stacked fan-out package structure and its packaging method

The present invention provides a three-dimensional stacked fan-out package structure and a preparation method thereof. The structure includes: a first semiconductor chip, a first encapsulation material layer, a metal connection column, a first redistribution layer, a second redistribution layer, a second semiconductor chip, solder bump, an underfill layer, and a second encapsulation material layer. The formed package structure can encapsulate two layers of fan-out wafers in the three-dimensional direction. After cutting, a single package body has two layers of semiconductor chips in the three-dimensional direction. By setting the first redistribution layer, the metal connection column, and the second redistribution layer, the electrical signals of all semiconductor chips in a single package body can be controlled, so that more chips can be encapsulated in a single package body, improving the integration of the package and reducing the package volume at the same time. Moreover, encapsulating multiple chips in the same package body can also effectively improve the performance of a single chip. Finally, the preparation method also provides the possibility of encapsulating more than three layers of fan-out wafers in a single package body.
Owner:SJ SEMICONDUCTOR (JIANGYIN) CORP