摘要:
A connection structure (package 10) has a first plate body 101 and a second plate body; in the first plate body 101, a wiring pattern having a plurality of connection terminals 102 is formed, and the second plate body has at least two connection terminals (electrode terminals 104) arranged facing the connection terminals of the first plate body 101. The connection terminals of the first and second plate bodies are connection terminals formed as projections on the surfaces of the first and second plate bodies. A conductive substance 108 is accumulated to cover at least a part of each side face of the connection terminals opposed to each other of the first and second plate bodies, and the connection terminals thus opposed are connected to each other via the conductive substance. The package thus formed is ready for a high-pin-count, narrow-pitch configuration of a next-generation semiconductor chip, and exhibits excellent productivity and reliability. The present invention is advantageous for such a package, for a connection structure applicable to the production of the package, and for a method of producing the connection structure.
摘要:
The flip chip mounted body of the present invention includes: a circuit board (213) having a plurality of connection terminals (211); a semiconductor chip (206) having a plurality of electrode terminals (207) that are disposed opposing the connection terminals (211); and a porous sheet (205) having a box shape that is provided on an opposite side of a formation surface of the electrode terminal (207) of the semiconductor chip (206), is folded on an outer periphery of the semiconductor chip (206) on the formation surface side of the electrode terminal (207) and is in contact with the circuit board (213), wherein the connection terminal (211) of the circuit board (213) and the electrode terminal (207) of the semiconductor chip (206) are connected electrically via a solder layer (215), and the circuit board (213) and the semiconductor chip (206) are fixed by a resin (217). Thereby, the flip chip mounted body with excellent productivity and reliability that can mount the semiconductor chip on the circuit board, and a method and an apparatus for mounting the flip chip mounted body are provided.
摘要:
A module with a built-in component is provided which can be produced without a via-forming step. The module with a built-in component 100 includes an insulating sheet substrate 10 which has an upper surface 10a, a lower surface 10b opposed to the upper surface 10b and a side surface 10c which connects these surfaces. At least one wiring 20 extends from the upper surface to the lower surface through the side surface, and an electronic component 32 is disposed within the sheet substrate.
摘要:
[Problem] To provide a flip-chip mounting method and a bump formation method applicable to flip-chip mounting of a next generation LSI and having high productivity and high reliability.[Means for Solving Problem] A semiconductor chip 20 having a plurality of electrode terminals 12 is held to oppose a circuit board 21 having a plurality of connection terminals 11 with a given gap provided therebetween, and the semiconductor chip 20 and the circuit board 21 in this state are dipped in a dipping bath 40 containing a melted resin 14 including melted solder particles for a given period of time. In this dipping process, the melted solder particles self-assemble between the connection terminals 11 of the circuit board 21 and the electrode terminals 12 of the semiconductor chip 20, so as to form connectors 22 between these terminals. Thereafter, the semiconductor chip 20 and the circuit board 21 are taken out of the dipping bath 40, and the melted resin 14 having permeated into the gap between the semiconductor chip 20 and the circuit board 21 is cured, so as to complete a flip-chip mounting body.
摘要:
The invention involves mounting a solder resin composition (6) including a solder powder (5a) and a resin (4) on the first electronic component (2); arranging such that the connecting terminals (3) of the first electronic component (2) and the electrode terminals (7) of the second electronic component (8) are facing each other; ejecting a gas (9a) from a gas generation source (1) included in the first electronic component (2) by heating the first electronic component (2) and the solder resin composition; and inducing the flow of the solder powder (5a) in the solder resin composition (6) by inducing convection of the gas (9a) in the solder resin composition (6), and electrically connecting the connecting terminals (3) and the electrode terminals (7) by self-assembly on the connecting terminals (3) and the electrode terminals (7). Through this are provided a flip chip packaging method that enables connecting, with high connection reliability, electrode terminals of a semiconductor chip wired with narrow pitch and connecting terminals of a circuit board, and a bump formation method for packaging on a circuit board.
摘要:
An electronic component mounting method includes a step of applying a resin composition (3) including solder powder, convective additive and resin having fluidity at the melting temperature of the solder powder on a main surface of a wiring substrate (1) provided with conductive wirings and connecting terminals, a step of preparing a group of electronic components consisting of a plurality of electronic components (7, 8 and 9) including at least a passive component, the respective electronic components comprising electrode terminals, position-aligning connecting terminals with the electrode terminals, and making the group of electronic components abut a surface of the resin composition, a step of heating at least the resin composition so as to melt solder powder and make the solder powder self-assembled between the connecting terminals and the electrode terminals by the convective additive, and thereby connecting the connecting terminals and the electrode terminals by soldering, and a step of fixedly adhering the group of electronic components to the wiring substrate using the resin by hardening the resin in the resin composition. Accordingly, a mounting process can be remarkably simplified without forming bumps in advance.
摘要:
The flip chip mounted body of the present invention includes: a circuit board (213) having a plurality of connection terminals (211); a semiconductor chip (206) having a plurality of electrode terminals (207) that are disposed opposing the connection terminals (211); and a porous sheet (205) having a box shape that is provided on an opposite side of a formation surface of the electrode terminal (207) of the semiconductor chip (206), is folded on an outer periphery of the semiconductor chip (206) on the formation surface side of the electrode terminal (207) and is in contact with the circuit board (213), wherein the connection terminal (211) of the circuit board (213) and the electrode terminal (207) of the semiconductor chip (206) are connected electrically via a solder layer (215), and the circuit board (213) and the semiconductor chip (206) are fixed by a resin (217). Thereby, the flip chip mounted body with excellent productivity and reliability that can mount the semiconductor chip on the circuit board, and a method and an apparatus for mounting the flip chip mounted body are provided.
摘要:
A process for producing an electronic component assembly, comprising the steps of: (1) preparing a first electronic component whose surface (A) is provided with a plurality of electrodes (a) and a second electronic component whose surface (B) is provided with a plurality of electrodes (b) wherein at least one concave portion is formed in the surface (A) (except for a surface region on which the electrodes (a) are provided) and/or the surface (B) (except for a surface region on which the electrodes (b) are provided); (2) supplying a resin that comprises a solder powder onto the surface (A) of the first electronic component; (3) bringing the second electronic component into contact with a surface of the resin such that the plurality of electrodes (a) of the first electronic component are opposed to the plurality of electrodes (b) of the second electronic component; and (4) heating the first electronic component and/or the second electronic component, and thereby forming solder connections from the solder powder, the solder connections serving to electrically interconnect the electrodes (a) and (b), wherein, upon the heating step (4), gas bubbles are generated within the resin such that the bubble generation originates at least from the concave portion, and the generated bubbles cause the solder powder to move and congregate onto the electrodes (a) and (b).
摘要:
[Problem] To provide a conductive pattern formation method in which a fine pattern can be formed in a simple way at low cost.[Means for Solving Problem] A flat plate having a convex pattern on its surface is provided so as to oppose a substrate, a fluid body including conductive particles and a gas bubble generating agent is supplied into a gap between the substrate and the flat plate, and thereafter, the fluid body is heated for generating gas bubbles from the gas bubble generating agent included in the fluid body. The fluid body is forced out of the gas bubbles as the gas bubbles generated from the gas bubble generating agent grow, so as to self-assemble between the convex pattern formed on the flat plate and the substrate owing to interfacial force, and an aggregate of the conductive particles included in the fluid body having self-assembled is made into a conductive pattern formed on the substrate.
摘要:
A flip chip mounting method which is applicable to the flip chip mounting of a next-generation LSI and high in productivity and reliability as well as a method for connecting substrates are provided. A circuit board 10 having a plurality of connecting terminals 11 and a semiconductor chip 20 having a plurality of electrode terminals 21 are disposed in mutually facing relation and a resin 13 containing conductive particles 12 and a gas bubble generating agent is supplied into the space therebetween. In this state, the resin 13 is heated to generate gas bubbles 30 from the gas bubble generating agent contained in the resin 13. The resin 13 is pushed toward the outside of the generated gas bubbles 30 by the growth thereof. The resin 13 pushed to the outside is self-assembled in the form of columns between the respective terminals of the circuit board 10 and the semiconductor chip 20. In this state, by pressing the semiconductor chip 20 against the circuit board 10, the conductive particles 12 contained in the resin 13 self-assembled between the facing terminals are brought into contact with each other to provide electrical connection between the terminals.