摘要:
A laser array light source unit 1 includes: a plurality of semiconductor lasers 2 each including a main body portion 2a and a leg portion 2b with two leading electrodes; a laser holder 3 holding the main body portions 2a, and having through-holes for the leg portions 2b; a pressing member 5 for fixing the semiconductor lasers 2 to the laser holder 3; an insulator 4 including a plurality of electrode insertion portions 4f having through-holes for the leading electrodes; and a wiring base 6 for electrically connecting at least two of the semiconductor lasers 2 in series. The insulator 4 includes a connecting portion 4b for connecting the plurality of electrode insertion portions 4f in the same direction in which the plurality of semiconductor lasers 2 are arranged. The wiring base 6 includes first through-holes into which the leading electrodes of the semiconductor lasers 2 are inserted.
摘要:
A semiconductor device of the present invention includes a supporting board, an electrode surface processing layer formed on the supporting board, a semiconductor element, and a solder material containing a first metal composed mainly of bismuth and a second metal having a higher melting point than the first metal and joining the electrode surface processing layer and the semiconductor element, the first metal containing particles of the second metal inside the first metal. The composition ratio of the second metal is higher than the first metal in a region of the solder material corresponding to the center portion of the semiconductor element, and the composition ratio of the second metal is at least 83.8 atomic percent in the region corresponding to the center portion.
摘要:
A solder material includes 1.0-4.0% by weight of Ag, 4.0-6.0% by weight of In, 0.1-1.0% by weight of Bi, 1% by weight or less (excluding 0% by weight) of a sum of one or more elements selected from the group consisting of Cu, Ni, Co, Fe and Sb, and a remainder of Sn. When a copper-containing electrode part of an electronic component is connected to a copper-containing electrode land of a substrate by using this solder material, a part having an excellent stress relaxation property can be formed in the solder-connecting part and a Cu—Sn intermetallic compound can be rapidly grown from the electrode land and the electrode part to form a strong blocking structure.
摘要:
A manufacturing method for a bonded structure, in which a semiconductor device is bonded to an electrode by a bonding portion, the method including: first mounting a solder ball, in which a surface of a Bi ball is coated with Ni plating, on the electrode that is heated to a temperature equal to or more than a melting point of Bi; second pressing the solder ball against the heated electrode, cracking the Ni plating, spreading molten Bi on a surface of the heated electrode, and forming a bonding material containing Bi-based intermetallic compound of Bi and Ni; and third mounting the semiconductor device on the bonding material.
摘要:
A semiconductor device of the present invention includes a supporting board, an electrode surface processing layer formed on the supporting board, a semiconductor element, and a solder material containing a first metal composed mainly of bismuth and a second metal having a higher melting point than the first metal and joining the electrode surface processing layer and the semiconductor element, the first metal containing particles of the second metal inside the first metal. The composition ratio of the second metal is higher than the first metal in a region of the solder material corresponding to the center portion of the semiconductor element, and the composition ratio of the second metal is at least 83.8 atomic percent in the region corresponding to the center portion.
摘要:
The present invention provides a semiconductor component having a joint structure including a semiconductor device, an electrode disposed opposite the semiconductor device, and a joining material which contains Bi as main component and connects the semiconductor device to the electrode. Since the joining material contains a carbon compound, joint failure due to the difference in linear expansion coefficient between the semiconductor device and the electrode can be reduced compared with conventional materials. The joining material which contains Bi as main component enables provision of a joint structure in which a semiconductor device and an electrode are joined by a joint more reliable than a conventional joint.
摘要:
A joint structure joins an electronic element 12 included in an electronic component to an electrode 14 included in that electronic component. The joint structure includes a solder layer, which contains 0.2 to 6% by weight of copper, 0.02 to 0.2% by weight of germanium and 93.8 to 99.78% by weight of bismuth, a nickel layer provided between the solder layer and the electrode, and a barrier layer provided between the nickel layer and the solder layer. Here, the barrier layer is formed so as to have an average thickness of from 0.5 to 4.5 μm after the electronic element and the electrode are joined by the solder layer.
摘要:
Card type information device includes wiring board having a wiring pattern with an electronic component mounted on a first face of wiring board and an antenna connecting electrode, antenna board having antenna pattern with antenna terminal electrodes formed on a first face of antenna board, magnetic material placed between wiring board and antenna board confronting each other, flexible wiring board for coupling the antenna connecting electrode to antenna terminal electrode, and housing for accommodating wiring board, antenna board, magnetic material, and flexible wiring board. Wiring board and antenna board are made from one and the same insulating motherboard.
摘要:
A bonding structure body in which a semiconductor element and an electrode are bonded via a solder material, wherein a part that allows bonding has a first intermetallic compound layer that has been formed on the electrode side, a second intermetallic compound layer that has been formed on the semiconductor element side, and a third layer that is constituted by a phase containing Sn and a sticks-like intermetallic compound part, which is sandwiched between the two layers of the first intermetallic compound layer and the second intermetallic compound layer, and the sticks-like intermetallic compound part is interlayer-bonded to both of the first intermetallic compound layer and the second intermetallic compound layer.
摘要:
A mounting structure includes an insulating substrate having a substrate electrode on which at least one electrode notch is provided and a resist, an electronic component having an electronic component electrode to be electrically connected to the substrate electrode, and solder paste printed on a surface of the substrate electrode. The substrate electrode has a following relation, 0