Ceramic Wafer Chuck
A ceramic wafer chuck is a specialized tool employed in the semiconductor industry to hold wafers in a secure position. It functions as a stable platform that guarantees consistent contact and precise positioning of the wafer during many procedures, including lithography, etching, deposition, bonding, and testing.
Ceramic Tube
Ceramic tubes are mainly composed of alumina, zirconia, silicon nitride and other ceramics. They provide excellent high temperature resistance, mechanical strength, electrical insulation, wear and corrosion resistance, etc., making them indispensable components in numerous industrial applications.
Aluminum Oxide Ceramic
Aluminum oxide ceramic is a high-performance ceramic material, also known as alumina ceramic material. Composed of high-purity alumina powder, this non-metallic material is manufactured via pressing, molding, sintering, and other processes. According to the alumina content, it is classified as 92 porcelain (92%), 95 porcelain (95%), 96 porcelain (96%), 97 porcelain (97%), 99 porcelain (99%), 995 porcelain (99.5%) and 997 porcelain (99.7%).
DBC Ceramic Substrate
DBC (Direct Bonded Copper) is comprised of an insulating layer of ceramic substrate such as Al2O3 (aluminum oxide) and AlN (aluminum nitride) and copper connections to ensure electrical conductivity at high temperatures. For maximum reliability and performance, modules must exhibit excellent properties in terms of heat sink dissipation, and thermal and power cycling tolerance. Ceramics have a large heat capacity and great thermal conductivity. The exceptional electrical and thermal conductivity of thick copper foil lays a good foundation for welding and wire bonding technology. UNIPRETEC ensures that the numerous materials used in assembly and packaging technology are perfectly matched to the substrate, its functional surface, and the chip attachment.
Silicon Nitride Substrate
Silicon nitride substrates offer exceptional heat resistance, ultra-high hardness, and fracture toughness, thus exhibiting outstanding mechanical properties under high-frequency vibration or high temperature circumstances. As a result, they are frequently used in industries like aerospace, high-speed rail, new energy vehicles, etc., and are a crucial core heat dissipation material for silicon carbide power modules (SiC MOSFET) and insulated gate bipolar transistors (IGBT).
99.6% Alumina Substrate
Unipretec offers 99.6% alumina substrates. This high purity alumina substrate exhibits excellent physical, chemical, and mechanical properties, including exceptional insulating properties, high thermal conductivity, low dielectric constant, low dielectric loss, high flexural strength, high wear and corrosion resistance, and is widely produced for the thin film circuits industry, used in radio frequency components, optoelectronic components, and electronic packaging.
Ceramic Components
Ceramic components are manufactured of ceramic materials, which are an extensive family of inorganic, non-metallic compounds typically consisting of metal, non-metal, and metalloid elements. The exceptional properties exhibited by ceramics, such as their high hardness, low electrical conductivity, and remarkable thermal stability, are a result of their crystalline structure and unique bonding properties. A wide variety of materials, such as oxides (alumina, zirconia), nitrides (silicon nitride), carbides (silicon carbide), and other more specialized compositions, are used to make ceramic parts.
Ceramic Setters
Ceramic setters, also known as kiln setters, are devices used in the manufacture of powders, ceramic and metal parts within a kiln during the firing process. Typically, they are made of ceramic materials that can endure high temperatures and thermal cycles within the kiln. They are engineered to hold and arrange objects being fired in a way that they can be heated effectively and evenly while also preventing them from contacting and adhering together owing to melting or softening during firing.
Alumina Crucible
Alumina crucibles are used in laboratories as containers for chemical compounds or metal refractories at extremely high temperatures. Their high-temperature stability, chemical inertness, and mechanical strength have made them essential vessels for use in various industries, laboratory research, and academia. Unipretec offers alumina crucibles in a large quantity of stock in various sizes and shapes.
Boron Nitride Plate
Unipretec provides standard and custom hot-pressed boron nitride plate products. The hexagonal boron nitride plates are manufactured at high temperatures and pressures. In addition to pure 99% BN plates, we also offer BN composite materials that contain zirconia, alumina, and aluminium nitride to satisfy a range of customer needs. The largest size of boron nitride blanks is 485 x 485 x 190 mm, and they can be sliced into sheets and plates for customers to process further. Our boron nitride plates can be used in numerous extreme high-temperature applications that call for low thermal expansion, improved thermal shock resistance, and chemical inertness.
Ceramic Washers
Ceramic washers are made of ceramic materials like alumina or zirconia. These washers are manufactured using a variety of techniques, including pressing or slip casting, and then high-precision machining, to satisfy specific requirements. They typically have electrical insulation, thermal insulation, corrosion resistance, and wear resistance, etc. The exceptional properties make them appropriate for numerous applications.
Si3N4 Ceramic
Si3N4 ceramic, also known as silicon nitride ceramic, is a high-performance material made up of silicon and nitrogen atoms. Due to its exceptional properties, it is perfect for high-temperature applications like gas turbines and aircraft components. Additionally, because of their great hardness and wear resistance, Si3N4 ceramics are also used in the production of welding pins, bearings, and lightweight ballistic armor. Furthermore, their electrical insulating properties make them valuable in the electronics and semiconductor industries.