Patent application number | Description | Published |
20090107616 | MANUFACTURING METHOD OF MULTI-LAYER CERAMIC SUBSTRATE - Provided is a manufacturing method of a multi-layer ceramic substrate. The manufacturing method includes preparing an unsintered ceramic laminated body with a cavity, mounting a chip device within the cavity, filling the cavity, in which the chip device is mounted, with a ceramic slurry, attaching a constrained layer on top and/or bottom of the ceramic laminated body, and firing the ceramic laminated body. Accordingly, since the deformation of the cavity is prevented during the firing of the ceramic laminated body, the dimension precision and reliability of the multi-layer ceramic substrate can be improved. | 04-30-2009 |
20090114433 | MULTI-LAYERED CERAMIC BOARD AND METHOD OF MANUFACTURING THE SAME - There is provided a multi-layered ceramic board and a method of manufacturing the same. A multi-layered ceramic board according to an aspect of the invention may include: an internal layer having a plurality of first dielectric sheets laminated, each of the first dielectric sheets prepared by mixing glass powder with a predetermined amount of alumina powder; and an external layer having at least one second dielectric sheet laminated on the surface of the internal layer, the second dielectric sheet prepared by mixing glass powder with alumina powder in a smaller amount than the first dielectric sheet, wherein via hole conductors and internal electrodes provided in the internal layer are electrically connected to a surface electrode provided on the surface of the external layer, and the internal layer, the external layer, the via hole conductors, the internal layer, and the surface electrode are fired at a predetermined temperature. | 05-07-2009 |
20090117290 | METHOD OF MANUFACTURING NON-SHRINKAGE CERAMIC SUBSTRATE - In a method of manufacturing a non-shrinkage ceramic substrate, a ceramic laminated structure, which is formed of a plurality of laminated green sheets each having an interconnecting pattern and has an external electrode formed on at least one of a top and bottom thereof, is prepared. A metal layer is formed to cover at least a portion of the external electrode. A constraining green sheet is disposed on at least one of the top and bottom of the ceramic laminated structure to suppress a planar shrinkage of the green sheets. The ceramic laminated structure is fired at the firing temperature of the green sheets to oxidize the metal layer. The constraining green sheet and a metal oxide layer, which is formed by oxidizing the metal layer, are removed. Accordingly, an electrode post-firing process can be omitted and the adhering strength between the electrode and the ceramic laminated structure can be increased. | 05-07-2009 |
20090130473 | CARRIER FILM FOR FORMING CERAMIC GREEN SHEET AND METHOD OF FABRICATING CERAMIC GREEN SHEET - Provided is a carrier film for forming a ceramic green sheet. The carrier film includes a film-type base material for fabricating the ceramic green sheet, a binder layer disposed on the film-type base material, the binder layer being formed of a binder resin, and a delamination layer disposed on a bottom surface of the carrier film, the delamination layer being formed of a resin having a releasing property. Also, provided is a method for fabricating a ceramic green sheet. The method includes preparing a carrier film for forming the ceramic green sheet including a binder layer, coating a ceramic slurry onto the carrier film, and drying the coated ceramic slurry to form the ceramic green sheet. | 05-21-2009 |
20090133805 | METHOD OF MANUFACTURING MULTILAYER CERAMIC SUBSTRATE - There is provided a method of manufacturing a multilayer ceramic substrate that can be easily performed with high efficiency at low cost without affecting the performance of a multilayer ceramic substrate. A method of manufacturing a multilayer ceramic substrate according to an aspect of the invention may include: printing a cutting region onto at least one of a plurality of ceramic green sheets when the plurality of ceramic green sheets are laminated to form the ceramic laminate; firing the ceramic laminate; and cutting the fired ceramic laminate along the cutting region. | 05-28-2009 |
20090133806 | METHOD OF MANUFACTURING DIELECTRIC SHEET AND MULTILAYER CERAMIC SUBSTRATE - There is provided a method of manufacturing a dielectric sheet and a multilayer ceramic substrate. A method of manufacturing a dielectric sheet according to an aspect of the invention may include: forming an embossed pattern formed of a thermoplastic material on a carrier film; forming a dielectric sheet by casting dielectric slurry onto the carrier film to cover the embossed pattern; removing the carrier film and the embossed pattern to leave an intaglio pattern having the shape corresponding to the embossed pattern on the dielectric sheet; and filling the intaglio pattern of the dielectric sheet with a conductive material. | 05-28-2009 |
20090135542 | GLASS COMPOSITION, DIELECTRIC COMPOSITION AND MULTILAYER CERAMIC CAPACITOR EMBEDDED LOW TEMPERATURE CO-FIRED CERAMIC SUBSTRATE USING THE SAME - Provided are a glass composition, a dielectric composition and a multi-layer ceramic capacitor embedded low temperature co-fired ceramic substrate using the same. The multi-layer ceramic capacitor embedded low temperature co-fired ceramic substrate is sinterable at a low temperature while showing a high dielectric constant. The glass composition includes a composition component expressed by a composition formula of aBi | 05-28-2009 |
20090152121 | THIN FILM CAPACITOR-EMBEDDED PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME - Disclosed herein is a printed circuit board with an embedded thin-film capacitor, and a method of manufacturing the same. | 06-18-2009 |
20090214881 | LOW TEMPERATURE CO-FIRED CERAMIC SUBSTRATE HAVING DIFFUSION BARRIER LAYER AND METHOD OF MANUFACTURING THE SAME - There is provided a low temperature co-fired ceramic substrate having a diffusion barrier layer to prevent diffusion occurring in a heterojunction during firing and a method of manufacturing the same. A low temperature co-fired ceramic substrate according to an aspect of the invention may include: a first ceramic layer formed of a material having a first dielectric constant; a second ceramic layer formed of a material having a second dielectric constant lower than the first dielectric constant; and a diffusion barrier layer interposed between the first ceramic layer and the second ceramic layer and formed of the first ceramic layer material, the second ceramic layer material, and a barium (Ba) compound, wherein inter-diffusion between the first ceramic layer material and the second ceramic layer material is prevented by using the diffusion barrier layer. | 08-27-2009 |
20100101702 | METHOD OF MANUFACTURING MULTILAYER CERAMIC SUBSTRATE - Disclosed is a method of manufacturing a multilayer ceramic substrate. The method includes providing a plurality of ceramic blocks, each including a ceramic laminate having a first surface and a second surface and having a laminated structure of a plurality of ceramic green sheets containing a glass ceramic component, and a first bonding ceramic green sheet including a glass component and disposed on a surface of the first and second surfaces of the ceramic laminate, which is to contact another ceramic laminate, firing the plurality of ceramic blocks, laminating the plurality of ceramic blocks such that the first bonding ceramic green sheets of the adjacent ceramic blocks face each other, and bonding the plurality of ceramic blocks using the glass component of the first bonding ceramic green sheets. | 04-29-2010 |
20100104835 | CERAMIC LAMINATE AND METHOD OF MANUFACTURING CERAMIC SINTERED BODY - There are provided a ceramic laminate and a method of manufacturing a ceramic sintered body. A ceramic laminate according to an aspect of the invention may include: at least one ceramic sheet having first ceramic particles and glass particles; and at least one constraining sheet having second ceramic particles and alternating with the ceramic sheet while the constraining sheet and the ceramic sheet are in contact with each other, wherein the glass particles and the first ceramic particles each have a larger particle size than the second ceramic particles, and the first ceramic particles have a particle size of 1 μm or more, the glass particles have a particle size within the range of 1 μm to 10 μm, and the second ceramic particles have a particle size of 1 μm or less. An aspect of the present invention provides a ceramic laminate having constraining layers that can evenly exert a constraining force onto a ceramic laminate during sintering. | 04-29-2010 |
20110277912 | CERAMIC LAMINATE AND METHOD OF MANUFACTURING CERAMIC SINTERED BODY - There are provided a method of manufacturing a ceramic sintered body. A method of manufacturing a ceramic sintered body according to one aspect of the invention may include: preparing at least one ceramic sheet having first ceramic particles and glass particles; preparing at least one constraining sheet having second ceramic particles having a smaller particle size than the glass particles and the first ceramic particles; forming a ceramic laminate by alternating the ceramic sheet and the constraining sheet while the ceramic sheet and the constraining sheet are in contact with each other; and sintering the ceramic laminate so that components, which do not react with the first ceramic particles, from the glass particle are moved into the constraining sheet to sinter the constraining sheet when the ceramic sheet is sintered. | 11-17-2011 |