摘要:
A production method of an electronic device comprising the steps of forming a stacked body by stacking green sheets and electrode layers having a predetermined pattern and firing the stacked body. Before forming the stacked body, a blank pattern layer is formed on a space portion of the electrode layer having a predetermined pattern. The electrode level difference absorbing print paste for forming the blank pattern layer includes at least ceramic powder and a binder resin, and a polymerization degree of the binder resin is made equal to or more than that of a binder resin included in slurry for forming the green sheet. The binder resin of the electrode level difference absorbing print paste includes polyvinyl butyral resin with a polymerization degree of 1400 or more, a butyralation degree of 64 to 74 mol % and an acetalization degree of 66 to 74 mol %.
摘要:
A production method of an electronic device comprising the steps of forming a stacked body by stacking green sheets 10a and electrode layers 12a having a predetermined pattern and firing the stacked body. Before forming the stacked body, a blank pattern layer 24 having substantially the same thickness as that of the electrode layer is formed on a space portion of the electrode layer having a predetermined pattern. The electrode level difference absorbing print paste for forming the blank pattern layer 24 includes at least ceramic powder and a binder resin, and a polymerization degree of the binder resin included in the electrode level difference absorbing print paste is made equal to or more than that of a binder resin included in slurry for forming the green sheet. The binder resin of the electrode level difference absorbing print paste includes a polyvinyl butyral resin, a polymerization degree of the polyvinyl butyral resin is 1400 or more, a butyralation degree is 64 to 74 mol %, and an acetalization degree is 66 to 74 mol %.
摘要:
A production method of a multilayer ceramic device is provided, by which, for example, a multilayer ceramic capacitor having a large capacity, wherein the interlayer thickness is made as thin as about 2.5 μm or thinner, can be produced at a high production yield without causing unsticking between layers and internal defects. In the present invention, when assuming that a first weight ratio (wt %) of the first organic binder component with respect to a first inorganic dielectric colorant powder in said green sheet slurry for forming a green sheet 10a is (A), and a second weight ratio (wt %) of the second organic binder component with respect to said second inorganic dielectric colorant powder in said electrode level difference absorbing dielectric paste for forming a dielectric blank pattern layer 24 is (B), the second weight ratio (B) is larger than the first weight ratio (A).
摘要:
A production method of a multilayer ceramic device is provided, by which, for example, a multilayer ceramic capacitor having a large capacity, wherein the interlayer thickness is made as thin as about 2.5 μm or thinner, can be produced at a high production yield without causing unsticking between layers and internal defects. In the present invention, when assuming that a first weight ratio (wt %) of the first organic binder component with respect to a first inorganic dielectric colorant powder in said green sheet slurry for forming a green sheet 10a is (A), and a second weight ratio (wt %) of the second organic binder component with respect to said second inorganic dielectric colorant powder in said electrode level difference absorbing dielectric paste for forming a dielectric blank pattern layer 24 is (B), the second weight ratio (B) is larger than the first weight ratio (A).
摘要:
It is an object of the present invention to provide a method for preparing a dielectric paste for a multi-layered ceramic electronic component that enables preparation of a dielectric paste in which a dielectric material is dispersed with a high dispersibility while controlling the concentration of the dielectric material in a desired manner. The method for preparing a dielectric paste for a multi-layered ceramic electronic component includes a kneading step of kneading a dielectric powder, a binder and a solvent to form a clay-like mixture and a slurrying step of adding the same solvent as that used at the kneading step to the mixture obtained by the kneading step to lower the viscosity of the mixture, thereby slurrying the mixture.
摘要:
A manufacturing method of ceramic slurry being used for producing a green sheet which can have a smooth surface, exhibits a satisfactory sheet strength, and is excellent in workability such as releasing, a green sheet produced by the use of the slurry produced by the method, and a multilayer ceramic device produced by the use of the green sheet is provided. According to the present invention, a manufacturing method of ceramic slurry at least comprising a ceramic powder and a binder resin solution, wherein a high-pressure dispersing treatment of the ceramic powder and a lacquer for preliminary addition, which is a part of the binder resin solution, is carried out so that a shearing rate is set to 1×107 to 1×108 [1/sec] to prepare a preliminary slurry, and at least a lacquer for post-addition, which a high-pressure dispersing treatment is not applied, is added to the preliminary slurry which a high-pressure dispersing treatment is applied.
摘要:
It is an object of the present invention to provide a method for manufacturing a multi-layered unit for a multi-layered ceramic electronic component which can reliably prevent short circuit failure from occurring in a multi-layered ceramic electronic component and form an electrode layer in a desired manner.A method for manufacturing a multi-layered ceramic electronic component includes a step of printing a conductive paste containing a binder containing ethyl cellulose having a weight average molecular weight of MWL and ethyl cellulose having a weight average molecular weight of MWH at a weight ratio of X:(1−X), where MWL, MWH and X are selected so that X*MWL+(1−X)*MWH falls within a range of 145,000 to 215,000 and at least one solvent selected from the group consisting of isobornyl acetate, dihydroterpinyl methyl ether, terpinyl methyl ether, α-terpinyl acetate, I-dihydrocarvyl acetate, I-menthone, I-menthyl acetate, I-perillyl acetate and I-carvyl acetate on a ceramic green sheet containing a butyral system resin as a binder in a predetermined pattern, thereby forming an electrode layer.
摘要:
A thick film green sheet slurry, a production method of thick film green sheet slurry, a production method of a thick film green sheet, a thick film green sheet and a production method of an electronic device are provided; by which coating of a relatively thick film becomes possible, a sheet formed after coating has excellent cutting property (strength capable of being cut), and a sheet having high air permeability, excellent handleability and a high adhesive force can be formed. In the present invention, a thick film green sheet slurry comprises a ceramic powder, a binder resin including a butyral based resin as the main component, and a solvent: wherein the solvent includes a good solvent for letting the binder resin dissolved well therein and a poor solvent having lower solubility to the binder resin comparing with that of the good solvent; and the poor solvent is included in a range of 30 to 60 wt % with respect to the entire solvent. The good solvent is alcohol, and the poor solvent may be toluene, xylene, mineral spirit, benzyl acetate, solvent naphtha, etc.
摘要:
A disclosed vibration insulating mount is promptly disposed between a vibrating body and a mounting body. The mount comprises a fluid chamber filled with a fluid, an elastic support partly defining the fluid chamber and mounting the vibrating body, a movable member partly defining the fluid chamber and capable of being displaced so as to change a volume of the fluid chamber, a supporting member supporting the movable member, and an actuator opposed to the movable member and generating displacing force to displace the movable member. Here, thickness of an outer portion of the movable member is thinner than that of an inner portion of the movable member.
摘要:
A bit sequence reversing device for reversing a sequence of data having a plurality of blocks, each block having a predetermined number of bits. The bit sequence reversing device includes a block reversing unit for reversing a sequence of at least two of the blocks; and a plurality of bit reversing units, each corresponding to one of the blocks, each of the bit reversing units reversing a sequence of the bits in the corresponding block. The block reversing unit includes a barrel shift unit. The barrel shift unit includes first and second input latch circuits for receiving the data; a series of left shift registers, connected to the first input circuit, for shifting the output of the first input latch circuit on the left direction, a series of right shift registers, connected to the second input circuit, for shifting the output of the second input latch circuit on the right direction; a first output control circuit, connected to a post-stage of one of the left shift registers, for selectively outputting data thereof; and a second output control circuit, connected to a post-stage of one of the right shift registers, for selectively outputting data thereof. The bit sequence reversing device reduces execution time without increasing the structural elements thereof, and since the reversing operation of blocks is adjusted, various types of reversing operations are possible.