摘要:
A bonded member including a ceramic base material 1 and a metallic member 7 which are bonded together, wherein a solder material 5 comprising Au is disposed on the surface of the ceramic base material 1 via an active metal layer, the active metal layer and the solder material 5 are molten by heating so as to form a precoat layer 6, the metallic member 7 is disposed on the surface of the precoat layer 6 via an insertion metal layer comprising pure metal which may form an alloy having a lower melting point than Au with Au or an alloy of the pure metal and Au, and the insertion metal layer and at least a portion in the vicinity of the interface between the insertion metal layer and the precoat layer 6 are molten by heating to bond the metallic member 7 and the precoat layer 6.
摘要:
A thermally conductive sheet comprises a thermally conductive polymer layer, an adhesive layer provided on an outer surface of the thermally conductive polymer layer, and a thermal diffusion layer, which is a functional layer provided on the adhesive layer. The thermally conductive polymer layer is formed of a thermally conductive polymer composition containing a polymer matrix and a thermally conductive filler. The coefficient of static friction of the thermally conductive polymer layer is 1.0 or lower. The adhesive layer has an outer shape smaller than that of the thermally conductive polymer layer.
摘要:
A heating device is provided, including an insulating ceramic base having a heating surface for heating an object. A high frequency electrode is embedded in the insulating ceramic base in the vicinity of the heating surface, and a heating body is embedded in the base in a location that is further from the heating surface than the location of the high frequency electrode. A low resistance ceramic member is provided so as to be exposed to a part of the heating surface of the insulating ceramic base and to be connected to a conductive member inside of the insulating ceramic base. A main component of the material of the low resistance ceramic member is common to that of the insulating ceramic base, and the respective thermal expansion coefficients are equivalent.
摘要:
The thermally conductive body for use by being placed between a heat generating body and a heat radiating body, in which the body is molded from a thermally conductive polymer composition. The thermally conductive polymer composition contains a polymer matrix and a thermally conductive filler. At least part of the thermally conductive filler is formed in the shape of fibers and oriented in a certain direction. In the body, ends of the thermally conductive filler formed in the shape of fibers are exposed on the outer surface intersecting the direction of the orientation. Protrusions extending along the outer surface are formed thereat. In case, the body is placed between the heat generating body and the heat radiating body so that the outer surface contacts at least one of the heat generating body and the heat radiating body.
摘要:
In a ceramic circuit board having a ceramic substrate and a metal circuit plate bonded to one surface of the ceramic substrate, assuming that the warpage of the ceramic circuit board is a difference in height between the center and edge of the metal circuit plate and is positive (+) when the circuit board warps so as to be concave on the side of the metal circuit plate, the warpage of the ceramic circuit board is in the range of from −0.1 mm to +0.3 mm when the ceramic circuit board is heated to 350° C., and in the range of from +0.05 mm to +0.6 mm when the temperature of the ceramic circuit board is returned to a room temperature after the ceramic circuit board is heated to 350° C. The initial warpage of the ceramic circuit board is in the range of from +0.05 mm to +0.6 mm.
摘要:
A developer material toner comprising powdered developer material color-reactable with dye or dye precursor and powdered inorganic oxide covering the surface of the powdered developer material.
摘要:
An image forming apparatus makes use of a color developing principle in which there is an absorption or reaction between a color developer and a dye, pigment or dye precursor. A photosensitive member whose surface is rendered electrically conductive by application of light, and a photosensitive/pressure sensitive recording medium are exposed to image information containing light simultaneously so that the color developer is selectively deposited only onto portions of the photosensitive/pressure sensitive recording medium which is to develop color. Microcapsules containing the dyes, pigments or dye precursors located on the photosensitive/pressure sensitive recording medium are selectively broken according to the image information containing light, and the selectively deposited color developer transferred onto the photosensitive/pressure sensitive recording medium are transferred and fixed on any arbitrary medium to be recorded, thereby obtaining a desired image on the arbitrary medium.
摘要:
An image recording apparatus having a first exposure unit for forming a latent image corresponding to an original image on a photosensitive pressure sensitive recording medium, and a second exposure unit for electrostatically forming a developer particle image. The developer particle image is transferred onto the photosensitive pressure sensitive recording medium, and the thus transferred developer particles are reacted with chromogenic material of the photosensitive recording medium at a pressure developing unit so that a visible image is provided on another sheet medium. A method for recording the image includes the steps of effecting a first exposure for forming the latent image, effecting a second exposure for forming the developer particle image, electrostatically transferring the developer particle image onto the recording medium, and pressure developing the image to provide a visible image on a separate plane paper.
摘要:
An object of the present invention is to provide a heater having a ceramic substrate with a through hole formed therein so that the uniformity of temperature on the heating face of the substrate can be improved and the use life of the ceramic substrate can be improved upon thermal cycles. A ceramic heater comprises a substrate made of a ceramic material and having a heating face where three or more zones 3C, 3F are allocated, heating resistances corresponding to the zones, respectively, and terminals 5C electrically connected to the heating resistances, respectively. Three or more holes 4 are formed in the substrate. Distances of the terminals 5C and the wall surfaces facing the holes 4 are 8 mm or more, respectively. The heating resistance 15 intersects a straight line 16 connecting the center of the terminal and the center 4a of the hole in a plan view.
摘要:
A joined structure includes a metal terminal, a ceramic member and a joining layer between the metal terminal and the ceramic member. The joining layer includes a metal adhesive layer containing at least indium metal. The invention further provides a joined structure including a metal member, a ceramic member, and a joining layer. The metal member includes a tip face and a side face. A hollow portion is formed in the ceramic member. The joining layer is formed between a bottom surface facing the hollow portion and the tip face of member, and further formed between a side wall surface facing the hollow portion and the side face of the metal member. The joining layer also includes a metal adhesive layer containing at least indium metal.