摘要:
A process for producing a multilayer board includes the steps of applying a bonding ink to the terminal of the first substrate, the bonding ink including a thermosetting resin containing a filler and a curing agent, the filler being formed of metal particles plated with solder, the metal particles each having a first melting point, and the solder having a second melting point lower than the first melting point; bonding the second substrate to a bonding sheet composed of a thermosetting resin and having a through hole disposed in a portion corresponding to the terminal of the second substrate; and heating and pressurizing the first and second substrates with the bonding sheet in such a manner that the terminals are opposite each other to effect curing of the bonding sheet and the bonding ink and to form an integral structure.
摘要:
A process for producing a multilayer board includes the steps of applying a bonding ink to the terminal of the first substrate, the bonding ink including a thermosetting resin containing a filler and a curing agent, the filler being formed of metal particles plated with solder, the metal particles each having a first melting point, and the solder having a second melting point lower than the first melting point; bonding the second substrate to a bonding sheet composed of a thermosetting resin and having a through hole disposed in a portion corresponding to the terminal of the second substrate; and heating and pressurizing the first and second substrates with the bonding sheet in such a manner that the terminals are opposite each other to effect curing of the bonding sheet and the bonding ink and to form an integral structure.
摘要:
The first support body is pressed against the second support body in response to the softening of the adhesive sheet. The fillers are allowed to reliably contact with one another between the first electrically-conductive land and the second electrically-conductive land. The fillers melt after the adhesive sheet has been softened. The intermetallic compounds are formed between the fillers and the electrically-conductive lands and between the fillers. Electrical connection is in this manner established between the first electrically-conductive land and the second electrically-conductive land. The matrix material and the adhesive sheet are then cured. The first support body and the second support body are firmly bonded to each other.
摘要:
An electrically conductive body includes: a first electrically conductive material; a second electrically conductive material; and a bonding material bonding the first electrically conductive material to the second electrically conductive material at least for electric conduction. The bonding material is made of a metallic structure containing copper-tin based intermetallic compound phases and tin-bismuth phases, the copper-tin based intermetallic compound phases being continuous between the first electrically conductive material and the second electrically conductive material, the tin-bismuth phases being surrounded by the copper-tin based intermetallic compound phases.
摘要:
According to a method of making a semiconductor device, a semiconductor chip is bonded to a substrate via bumps by flip-chip bonding. Then, a sealing adhesive composition is loaded between the semiconductor chip and the substrate to provide an adhesive sealing. The sealing adhesive composition, which is capable of hardening in two stages, contains at least a first main resin ingredient, a second main resin ingredient and a hardening agent. Then, the adhesive sealing is heated for primary hardening. Then, the substrate is placed on a mother board with a solder material interposed between the substrate and the mother board. Finally, the adhesive sealing is heated for secondary hardening while the solder material is reflowed for bonding the substrate to the mother board.
摘要:
According to a method of making a semiconductor device, a semiconductor chip is bonded to a substrate via bumps by flip-chip bonding. Then, a sealing adhesive composition is loaded between the semiconductor chip and the substrate to provide an adhesive sealing. The sealing adhesive composition, which is capable of hardening in two stages, contains at least a first main resin ingredient, a second main resin ingredient and a hardening agent. Then, the adhesive sealing is heated for primary hardening. Then, the substrate is placed on a mother board with a solder material interposed between the substrate and the mother board. Finally, the adhesive sealing is heated for secondary hardening while the solder material is reflowed for bonding the substrate to the mother board.
摘要:
A single-liquid type adhesive composition contains a main agent, an imidazole serving as a hardener, and a hardening promoter for increased hardening speed. The imidazole has its surface covered by a thermoplastic resin, and the hardening promoter is provided by a modified imidazole composition with its imino group (—NH—) having the H replaced by a specific reaction retarder group.
摘要:
The method of mounting an electronic part is capable of securely mounting the electronic part having fine solder bumps without excessively heating the part. The method of comprises the steps of: applying flux-fill, which acts as flux and under-filling resin, on a surface of a mount board, in which electrodes are formed; respectively connecting solder bums of the electronic part with the electrodes; and simultaneously filling a gap between the electronic part and the mount board with the flux-fill, wherein the solder bumps are made contact with the electrodes, and ultrasonic vibration energy is applied to contact portions of the solder bumps and the electrodes in the connecting step.
摘要:
A control system for a vehicle restricts engine torque when an accelerator operation amount is large and it is determined that the direction of the driver's face changed between forward and backward of the vehicle.
摘要:
A control system for a vehicle restricts engine torque when an accelerator operation amount is large and it is determined that the direction of the driver's face changed between forward and backward of the vehicle.