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 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 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 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:
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 semiconductor component of the present invention includes a semiconductor element and a joining layer formed on one surface of the semiconductor element and consisting of a joining material containing Bi as an essential ingredient, and projecting sections are formed on a surface of the joining layer on a side opposite to a surface in contact with the semiconductor element. By joining the semiconductor component to an electrode arranged so as to face the joining layer, the generation of a void can be suppressed.
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 layer (105) of a metal having a crystal lattice different from the crystal lattice of a joining material (106) mainly containing Bi is placed on a surface (102b) of a semiconductor device (102), and a layer (104) of an element having a positive value of heat of formation of a compound with the joining material (106) is placed between the layer (105) of the metal having the crystal lattice different from the crystal lattice of the joining material (106) and the surface (102b) of the semiconductor device (102), thereby preventing the component of the layer (105) of the metal having the crystal lattice different from the crystal lattice of the joining material (106) from being diffused in the semiconductor device (102).