摘要:
A saddle type, off-road vehicle is disclosed which comprises a frame, an engine mounted to the frame, a pair of rear wheels disposed on opposite sides of the frame, at least one front wheel, a seat supported on an upper portion of the frame, and a steering handle positioned forwardly of the seat. Each of the rear wheels has a larger diameter and a smaller lateral width than each of the front wheels. Additionally, the vehicle includes a relatively large storage receptacle is provided on the frame.
摘要:
A gaseous atmosphere control apparatus for heat-treating semiconductors in a uniform gaseous atmosphere condition is disclosed. The control apparatus is provided with a reaction pipe through which semiconductor wafers are transferred to be heat-treated. A gas distribution pipe is fixed to the inside wall of the reaction pipe for guiding the transfer of the wafers and supplying heat-treating gas in the reaction pipe. The distribution pipe is provided with a plurality of blow-off holes, the diameter thereof being made wider as the pipe extends longitudinally, to thereby control the gaseous atmosphere condition in the reaction pipe to be uniform.
摘要:
There is provided a conductive paste obtained by kneading conductive particles into an epoxy resin and having good filling ability into a via hole, which can form a connected portion wherein the connection resistance does not change with time even under high temperature and high humidity conditions. Also, there is provided a method for manufacturing a multilayer printed wiring board using the conductive paste.A conductive paste containing conductive particles and a resin mixture wherein the content of the epoxy resin having a molecular weight of 10,000 or more is from 30 to 90% by weight in the total resin component and whose elastic modulus at 85° C. after curing is 2 GPa or less, the content of the conductive particle being from 30 to 75% by volume. Furthermore, a method for manufacturing a multilayer printed wiring board using the conductive paste.
摘要:
Provided are a substrate for a printed wiring board, and a printed wiring board, which are not limited in size because vacuum equipment is not necessary for the production, in which an organic adhesive is not used, and which can include a conductive layer (copper foil layer) having a sufficiently small thickness. Also provided are a method for producing the substrate for a printed wiring board, and a method for producing the printed wiring board. A substrate 1 for a printed wiring board includes an insulating base 11, a first conductive layer 12 that is stacked on the insulating base 11, and a second conductive layer 13 that is stacked on the first conductive layer 12, in which the first conductive layer 12 is a coating layer composed of a conductive ink containing metal particles, and the second conductive layer 13 is a plating layer.
摘要:
A novel board for printed wiring comprising a fine conductor wiring having a clear and favorable boundary line and fabricated by an ordinal printing method such as screen printing, a printed wiring board using the same, and methods for manufacturing them. A board for printed wiring and a method for manufacturing the same are characterized in that the surface of a board is subjected to one of the surface treatments: (a) roughening, (2) plasma treatment, (3) roughening and then plasma treatment, and (4) roughening and then forming of a metal film coating by sputtering. A printed wiring board and a method for manufacturing the same is characterize in that a conductor wiring is fabricated by printing using a conductive paste containing metal particles the average particle diameter of which is 4 μm or less and the maximum particle diameter of which is 15 μm or less. Another printed wiring board and a method for manufacturing the same is characterized in that the surface of a conductor wiring fabricated using a conductive paste containing metal particles M and a binder B at a volume ratio of M/B of 1/1 to 1.9/1 is etched, a plating coating is formed on the surface.