Abstract:
A manufacturing method of a mounting part of a semiconductor light emitting element comprising: preparing a semiconductor light emitting element including an electrode which has a surface, and a board which has a surface; forming a plurality of bump material bodies on at least one of the surface of the electrode and the surface of the board by shaping bump material into islands, wherein the bump material is paste in which metal particles are dispersed, a top surface and a bottom surface of the bump material bodies have different areas, and the top surface is practically flat; solidifying the bump material bodies by thermally processing the bump material bodies; and fixing the semiconductor light emitting element and the board through the bumps.
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device and a manufacturing method of the same, excellent in productivity, capable of improving stability of mechanical connection between a semiconductor substrate and a wiring board, and capable of improving stability of electrical connection between an electrode of the semiconductor substrate and wiring of the wiring board.SOLUTION: The semiconductor device comprises: a first insulation adhesive disposed between a surface area of a semiconductor substrate between electrodes of different polarities and a surface area of an insulation base material between neighboring wiring; and a second insulation adhesive disposed between the first insulation adhesive and a conductive adhesive. In the manufacturing method to manufacture the semiconductor device, a first insulation adhesive has a property to become a second cured state after becoming a softening state after becoming a first cured state and viscosity of the first insulation adhesive is kept higher than that of the second insulation adhesive until the first insulation adhesive becomes the second cured state.
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device, with a three-dimensional structure, capable of efficiently radiating heat generated from the semiconductor device, and to provide a method of manufacturing the same.SOLUTION: A first semiconductor substrate 101 and a second semiconductor substrate 111 are bonded by an adhesive 107A. In the first semiconductor substrate 101, a first electrode 104 in which at least of an edge is exposed is provided. Besides, in the second semiconductor substrate 111, a second electrode 114 in which at least of an edge is exposed is provided. The adhesive 107A includes carbon nano-tubes, and is formed in the region excluding the connecting region of the first electrode 104 and the second electrode 114 and its vicinity.
Abstract:
PROBLEM TO BE SOLVED: To provide a resin composition for thermosetting liquid sealing which enables production of a semiconductor device from a semiconductor element at a low cost and without generation of voids, and an assembling technique of the semiconductor element for the vamp-attached semiconductor element. SOLUTION: A resin composition for thermosetting liquid sealing wherein (1) a spherical inorganic filler has 0.5-12 μm of the average particle size and not more than 20 μm of the maximum particle size, (2) an epoxy resin has not less than 200 for epoxy equivalents and contains the epoxy group having not less than two functions, (3) a thixo ratio (a viscosity ratio at 0.5 rpm and 2.5 rpm by a viscometer) of the resin composition for thermosetting liquid sealing containing diaminodiphenylsulfone is 1 to 2.
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic device of which conduction resistance between a board-side electrode and a part-side electrode is smaller than that in the conventional structure, and to provide its manufacturing method. SOLUTION: The electronic device is formed by connecting a board-side electrode 2 formed in a mounting board 1 and a part-side electrode 4 formed in an electronic part 3 and by mounting the electronic part 3 in the mounting board 1 in flip chip manner. A solder layer 6 is formed on the part-side electrode 4, and a metal bump 5 that is formed of Au stud bump and penetrates the solder layer 6 and comes into contact with the part-side electrode 4 while connecting the board-side electrode 2 and the part-side electrode is provided on the board-side electrode 2. The part-side electrode 4 is provided with an Ni layer as a deformation prevention layer 4b that is higher in conductivity than the solder layer 6 and higher in hardness than the metal bump 5, on a part-side base electrode layer 4a comprised of an Al layer. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent deterioration of productivity, a thermal effect on another loaded component, generation of a void in a resin and unrepairable manufacturing drawback of a BGA/CSP(ball grid array or chip size package) in a mounting structure in which an electronic component is mounted on a substrate via a solder bump. SOLUTION: A resin sheet 5 obtained by sandwiching both sides of a cured thermosetting resin plate 51 with a pair of thermosetting resin films 52 is previously prepared, and the resin sheet 5 is interposed between a BGA/CSP 2 and a substrate 3. At the same time, reflowing and curing of a solder bump 1 are performed with the solder bump 1 brought into contact with a land portion 4. Subsequently, by heating and pressurizing the solder bump 1 at a lower temperature than the melting temperature of the solder bump 1, the solder bump 1 is crushed and each of both the thermosetting resin films 52 is bonded to the BGA/CSP 2 and the substrate 3.