摘要:
A manufacturing apparatus for SiC single crystal has a control unit to control induction heating such that frequency f (Hz) of alternating current to be passed to the induction heating unit satisfies Formula (1); D1 (mm) is permeation depth of electromagnetic waves into a side wall of a crucible by the heating unit, D2 (mm) is permeation depth of electromagnetic waves into a SiC solution, T (mm) is thickness of the crucible side wall of the crucible, and R (mm) is crucible inner radius: (D1−T)×D2/R>1 (1) where, D1 is defined by Formula (2), and D2 by Formula (3): D1=503292×(1/(f×σc×μc))1/2 (2) D2=503292×(1/(f×σs×μs))1/2 (3); σc is electric conductivity (S/m) of the sidewall, σs is electric conductivity (S/m) of the SiC solution; μc is relative permeability of the sidewall, and μs relative permeability of the SiC solution.
摘要:
An apparatus for SIC single crystal has an induction heating control unit such that frequency f (Hz) of alternating current to the induction heating unit satisfies Formula (1); D1 (mm) is permeation depth of electromagnetic waves into a crucible side wall by the heating unit, D2 (mm) is permeation depth of electromagnetic waves into a SIC solution, T (mm) is thickness of the crucible side wall of the crucible, and R (mm) is crucible inner radius: (D1−T)×D2/R>1.5 (1) where, D1 is defined by Formula (2) and D2 by Formula (3): D1=503292×(1/(f×σc×μc))1/2 (2) D2=503292×(1/(f×σs×μs))1/2 (3); σc is electric conductivity (S/m) of the sidewall, σs is electric conductivity (S/m) of the SiC solution; μc is relative permeability of the sidewall, and μs is relative permeability of the SIC solution.
摘要:
There are disclosed a composition for protective coating material, preferably for a protective coating material of a semiconductor device which is constituted of principal elements of a semiconductor memory element, an encapsulating layer containing an inorganic material for encapsulating said element and a layer of a cured protective coating material arranged between said memory element and said encapsulating layer, which is composed of a polyamide acid obtained by the reaction of a diaminosiloxane, an organic diamine containing no silicon and an organic tetrabasic acid dianhydride, and a semiconductor device having a layer of a cured protective coating material composed of a polyimide-silicone copolymer obtained by dehydrating ring closure of the above-mentioned polyamide acid.
摘要:
There are disclosed a composition for protective coating material, preferably for a protective coating material of a semiconductor device which is constituted of principal elements of a semiconductor memory element, an encapsulating layer containing an inorganic material for encapsulating said element and a layer of a cured protective coating material arranged between said memory element and said encapsulating layer, which is composed of a polyamide acid obtained by the reaction of a diaminosiloxane, an organic diamine containing no silicon and an organic tetrabasic acid dianhydride, and a semiconductor device having a layer of a cured protective coating material composed of a polyimide-silicone copolymer obtained by dehydrating ring closure of the above-mentioned polyamide acid.
摘要:
An information processing apparatus is for generating image data by using drawing information for drawing an image. The information processing apparatus includes a print data acquirer configured to acquire print data including the drawing information from outside; a request acceptor configured to accept a request to display the image data of any page in the print data; a reader configured to read specific drawing information of pages in the print data up to a page before the any page accepted by the request acceptor, from a drawing information storage storing the specific drawing information, which is the drawing information that may be applied to the image data of pages after a page in which the drawing information is described, among the drawing information included in the print data; and a generator configured to generate the image data of the any page by applying the read specific drawing information.
摘要:
A disclosed print manager server includes one or more processors and a memory configured to store a print management program. The processors execute the print management program to perform a process including analyzing an attribute of print data introduced, predicting a page of a preview image to be generated based on the analyzed attribute, a preview history of previous print jobs, and a preview prediction condition, generating the preview image of the predicted page, and providing the generated preview image in response to a request to display a preview.
摘要:
An object is to position a plurality of guide vanes for generating swirl flow at a housing inner circumferential side in front of an impeller wheel to improve a surge margin and to restrict the decrease in a choke flow rate, thereby increasing an operation range of a compressor. A compressor 19 includes a compressor housing 15, an impeller wheel 7 which compresses intake gas flowing in from an intake-air inlet 23, a swirl-flow generating part including a plurality of guide vanes 55 disposed circumferentially along an inner circumferential wall of the intake-air channel 21 between the intake-air inlet 23 and the impeller wheel 7 and which swirls the intake gas from the intake-air inlet 23 around the rotational axis, and a central intake-air flow path 59 formed inside the guide vanes 55 to allow intake gas to flow to the impeller wheel 7 without passing through the guide vanes 55.
摘要:
In a scroll structure of a centrifugal compressor, there are provided a radius increase arc portion E in which a radius from the center of a scroll 12 to a scroll centroid P of the cross section of the scroll 12 is gradually increased in any range in a circumferential direction from the start of winding of the scroll, and a radius decrease arc portion F in which the radius is gradually decreased toward a scroll end point Z.
摘要:
A steering force assisting device that includes an electric motor and includes independent two sets of motor driving circuit and control unit, and the electric motor includes coils having the same polarity and different motor characteristics, the coils being wound around each of teeth of a stator of the electric motor. The motor characteristics are a high speed/low torque characteristic and a low speed/high torque characteristic, and may be selected on the basis of the running condition of a vehicle.
摘要:
A resonant pressure sensor including one or more resonant-type strain gauges arranged on a diaphragm may include a sensor substrate made of silicon and including one surface on which one or more resonant-type strain gauge elements are arranged and the other surface which is polished to have a thickness corresponding to the diaphragm, a base substrate made of silicon and including one surface directly bonded with the other surface of the sensor substrate, a concave portion formed in a portion of the base substrate bonding with the sensor substrate, substantially forming the diaphragm in the sensor substrate, and including a predetermined gap that does not restrict a movable range of the diaphragm due to foreign substances and suppresses vibration of the diaphragm excited by vibration of the resonant-type strain gauge elements, one or more conducting holes, and a fluid.