摘要:
A housing case housing an electronic circuit board, includes: a lower case portion which internally houses a circuit board for mounting electronic components; and an upper case portion which is externally fitted to the lower case portion to form a box-like member. Each of the lower case portion and the upper case portion includes a planar portion, and sidewall portions which stand from the peripheral edge of the planar portion. The planar portion and the sidewall portions are formed by using a plate-like member made of a metal material. Engaging projections which are outwardly projected are disposed on the sidewall portions of the lower case portion. Engaging holes which are passed through the sidewall portions of the upper case portion are disposed in the sidewall portions, in positions corresponding to the engaging projections of the lower case portion. The upper case portion is externally fitted to the lower case portion, and the engaging projections are engaged with the engaging holes, whereby the lower case portion and the upper case portion are fixed to each other.
摘要:
In a semiconductor module 10 in which a semiconductor device 17 is mounted on both surfaces of a circuit board 11 and heat radiation plates 12a, 12b are provided to both surfaces of the circuit board to cover the semiconductor device, a fitting hole via which the heat radiation plates 12a, 12b are fitted is formed in the circuit board 11, and a housing recess portion 18 in which the semiconductor devices 11 are housed is provided to both heat radiation plates 12a, 12b fitted to both surfaces of the circuit board 11 respectively and a fitting edge portion 25 is provided in a position of both heat radiation plates that overlaps with a position in which the fitting hole is formed, and also a fixing means 20 for fixing both heat radiation plates 12a, 12b to the circuit board 11 by caulking to align with the fitting hole is provided to fitting edge portions 25 integrally with the heat radiation plates 12a, 12b.
摘要:
A heat-radiating component includes a wick layer formed on an inner wall of a hermetically sealed container made of metal and a working fluid encapsulated in the hermetically sealed container. In the wick layer, micro carbon fiber is mixed into metal powder. In one aspect, the wick layer is a structure combined by a first wick and a second wick, the first wick being formed of sintered metal powder, and the second wick being a plating layer into which micro carbon fiber is mixed so as to partially fill air space inside the first wick while covering a surface of the first wick. The first wick is preferably a body sintered copper powder, and the second wick is preferably made of a copper plating layer into which carbon nanotube or carbon nanofiber is mixed.
摘要:
In one embodiment, there is provided a composite plating liquid. The composite plating liquid includes: a plating metal salt; a sulfate of at least one element selected from alkali metals and alkaline earth metals; boric acid; a carbon nanotube; and a dispersant. Also, there is provided a plating method of plating a member using the composite plating liquid, and a composite plating film formed by the plating method.
摘要:
A method of manufacturing a metal composite material includes applying a mechanical impact force to a carbon material and a metal powder at such an intensity as capable of pulverizing the carbon material, thereby adhering the carbon material to a surface of the metal powder.
摘要:
In one embodiment, there is provided a composite plating liquid. The composite plating liquid includes: a plating metal salt; a sulfate of at least one element selected from alkali metals and alkaline earth metals; boric acid; a carbon nanotube; and a dispersant. Also, there is provided a plating method of plating a member using the composite plating liquid, and a composite plating film formed by the plating method.
摘要:
A heat radiating component includes a base including a first metal, a first plating layer formed on the base and including a second metal and carbon material structures dispersed in the second metal, and a second plating layer formed on the first plating layer. The first plating layer includes protruding parts that are parts of the carbon material structures protruding from a surface of the second metal. The second plating layer is formed on the first plating layer to cover surfaces of the protruding parts and the surface of the second metal without filling spaces between the protruding parts.
摘要:
In a semiconductor module 10 in which a semiconductor device 17 is mounted on both surfaces of a circuit board 11 and heat radiation plates 12a, 12b are provided to both surfaces of the circuit board to cover the semiconductor device, a fitting hole via which the heat radiation plates 12a, 12b are fitted is formed in the circuit board 11, and a housing recess portion 18 in which the semiconductor devices 11 are housed is provided to both heat radiation plates 12a, 12b fitted to both surfaces of the circuit board 11 respectively and a fitting edge portion 25 is provided in a position of both heat radiation plates that overlaps with a position in which the fitting hole is formed, and also a fixing means 20 for fixing both heat radiation plates 12a, 12b to the circuit board 11 by caulking to align with the fitting hole is provided to fitting edge portions 25 integrally with the heat radiation plates 12a, 12b.
摘要:
A method of manufacturing a metal composite material includes applying a mechanical impact force to a carbon material and a metal powder at such an intensity as capable of pulverizing the carbon material, thereby adhering the carbon material to a surface of the metal powder.
摘要:
A housing case housing an electronic circuit board, includes: a lower case portion which internally houses a circuit board for mounting electronic components; and an upper case portion which is externally fitted to the lower case portion to form a box-like member. Each of the lower case portion and the upper case portion includes a planar portion, and sidewall portions which stand from the peripheral edge of the planar portion. The planar portion and the sidewall portions are formed by using a plate-like member made of a metal material. Engaging projections which are outwardly projected are disposed on the sidewall portions of the lower case portion. Engaging holes which are passed through the sidewall portions of the upper case portion are disposed in the sidewall portions, in positions corresponding to the engaging projections of the lower case portion. The upper case portion is externally fitted to the lower case portion, and the engaging projections are engaged with the engaging holes, whereby the lower case portion and the upper case portion are fixed to each other.