C04B2237/80

Low temperature method for hermetically joining non-diffusing ceramic materials in multi-layer plate devices

A method for the joining of ceramic pieces with a hermetically sealed joint comprising brazing a layer of joining material between the two pieces. The wetting and flow of the joining material is controlled by the selection of the joining material, the joining temperature, the joining atmosphere, and other factors. The ceramic pieces may be on a non-diffusable type, such as aluminum nitride, alumina, beryllium oxide, and zirconia, and the pieces may be brazed with an aluminum alloy under controlled atmosphere. The joint material is adapted to later withstand both the environments within a process chamber during substrate processing, and the oxygenated atmosphere which may be seen within the shaft of a heater or electrostatic chuck.

METHOD OF PRODUCING A MULTI-LAYER CERAMIC ELECTRONIC COMPONENT AND MULTI-LAYER CERAMIC ELECTRONIC COMPONENT
20210233714 · 2021-07-29 · ·

A method of producing a multi-layer ceramic electronic component includes: preparing a multi-layer unit including ceramic layers laminated in a direction of a first axis, internal electrodes disposed between the ceramic layers, and first and second side surfaces facing each other in a direction of a second axis orthogonal to the first axis, the internal electrodes being exposed from the first and second side surfaces; thermocompression-bonding a first side margin sheet to the first side surface; forming a first side margin by punching the thermocompression-bonded first side margin sheet with the first side surface; thermocompression-bonding a second side margin sheet to the second side surface, the second side margin sheet including a bonding surface having a higher flexibility than the first side margin formed on the first side surface; and forming a second side margin by punching the thermocompression-bonded second side margin sheet with the second side surface.

CERAMIC MATRIX COMPOSITE COMPONENT INCLUDING COUNTERFLOW CHANNELS AND METHOD OF PRODUCING
20210189901 · 2021-06-24 ·

A ceramic matrix composite (CMC) component and method of fabrication including a plurality of counterflow elongated functional features. The CMC component includes a plurality of longitudinally extending ceramic matrix composite plies forming a densified body and a plurality of elongated functional features formed therein the densified body. Each of the plurality of functional features is configured longitudinally extending and in alignment with the plurality of ceramic matrix composite plies. Each of the plurality of elongated functional features includes an inlet configured in cross-ply configuration. The plurality of elongated functional features are configured to provide a flow of fluid from a fluid source to an exterior of the ceramic matrix composite component. The plurality of functional features are configured in alternating flow configuration.

Crucible for casting near-net shape (NNS) silicon

A crucible includes an outer element and an inner element. The outer element includes a first portion that is horizontal at a bottom end of the crucible and a second portion that ascends radially outwardly from the bottom end of the crucible to a top end of the crucible at a first acute angle to a vertical axis. The inner element includes a conus with a cylinder at a base of the conus. The conus descends radially outwardly from the top end of the crucible to the bottom end of the crucible at a second acute angle to the vertical axis. The inner element includes a base portion of the cylinder attached to the first portion of the outer element using a sealant to form a hollow mold between an inner portion of the outer element and an outer portion of the inner element.

CERAMIC ELECTRONIC DEVICE AND MANUFACTURING METHOD OF THE SAME
20210118617 · 2021-04-22 · ·

A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked. A ceramic protection section includes a cover layer and a side margin. A main component ceramic of the ceramic protection section is a ceramic material having a perovskite structure expressed as a general formula ABO.sub.3. An A site of the perovskite structure includes at least Ba. A B site of the perovskite structure includes at least Ti and Zr. A Zr/Ti ratio which is a molar ratio of Zr and Ti is 0.010 or more and 0.25 or less. An A/B ratio which is a molar ratio of the A site and the B site is 0.990 or less.

MULTILAYER ELECTRONIC COMPONENT

A multilayer electronic component includes a body including dielectric layers and first and second internal electrodes alternately laminated with respective dielectric layers interposed therebetween, and first and second surfaces opposing each other in a direction by which the internal electrodes are laminated, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other; a moisture-proof layer disposed on at least one surface of anyone of the first, second, fifth, or sixth surface and containing a rare-earth oxide; a first external electrode disposed on the third surface and connected to the first internal electrodes; and a second external electrode disposed on the fourth surface and connected to the second internal electrodes.

Multilayer ceramic capacitor including adhesive layer between side margin portion and body and method of manufacturing the same

A multilayer ceramic capacitor includes a ceramic body including a dielectric layer, a first surface and a second surface opposing each other, a third surface and a fourth surface connecting the first surface and the second surface, respectively; internal electrodes disposed inside the ceramic body and exposed to the first and second surfaces, and having one ends exposed to the third surface or the fourth surface; a first side margin portion and a second side margin portion disposed on sides of the internal electrodes exposed to the first and second surfaces; and adhesive layers disposed between the first surface of the ceramic body and the first side margin portion and between the first surface of the ceramic body and the second side margin portion, respectively. An average thickness of each of the first and second side margin portions is 2 m or more and 10 m or less.

REPAIR AND/OR REINFORCEMENT OF OXIDE-OXIDE CMC

In some examples, techniques of repairing and/or reinforcing oxide-oxide ceramic matrix composite (CMC) materials using a metallic material. In one example, a method including applying a metallic material at an edge of an oxide-oxide CMC substrate; and heating the metallic material to diffuse the metal material into the oxide-oxide CMC substrate at the edge. In another example, a method including applying a metallic material onto a damaged area of the oxide-oxide CMC; applying a reinforcing phase material onto the damaged area of the oxide-oxide CMC; and heating the metallic material to diffuse the metallic material into the oxide-oxide CMC and attach the reinforcing phase material to the damaged area of the oxide-oxide CMC.

Method of making a sink from ceramic material slabs
10836683 · 2020-11-17 · ·

The invention relates to a method of making a sink comprising: cutting out material that will constitute a bottom of the sink; making a hole for a drain in the bottom of the sink; supporting the edges of the bottom of the sink on a flat support and applying a mechanical force on the rim of the hole for the drain in the bottom of the sink; subjecting the bottom of the sink to a gradual and stepwise heating such that the mechanical force applied deforms said surface; cooling a flat slab; placing additional flat slabs around the first slab, on the sides thereof, to constitute the sides of the sink; externally coating the assembly made with a reinforcement comprising resins, glass fiber, mineral fillers, etc.; and bonding the upper part of the assembly made with the countertop where the sink is located.

MULTILAYER CERAMIC ELECTRONIC DEVICE AND METHOD FOR MAKING SAME

A multilayer ceramic electronic device includes: a ceramic main body having a laminated body and a pair of side margin parts that respectively cover left and right side surfaces of the laminated body, the laminated body including a plurality of internal electrodes laminated in a vertical direction, side ends of each of the internal electrodes reaching and being flush with the respective side surfaces of the laminated body within a range of 0.5 um m in the widthwise direction; and a pair of external electrodes respectively covering end surfaces of the ceramic main body, wherein a width dimension W of the multilayer ceramic electronic device in the widthwise direction is greater than a length dimension L of the multilayer ceramic electronic device in the lengthwise direction.