Semiconductors for Three Dimensional Integrated Devices
Dr. Abhijit Biswas
SST creates all types of custom feedthroughs and hermetic connectors. Our work brings us interesting new projects every day. And these experiences very often result in improved parts and new products for our customers.One growing area of interest has been our BPM feedthrough designs. Over the years, leading high-energy physics laboratories have turned to SST to design and manufacture robust BPM feedthroughs. Available in Type-N or SMA RF connectors on the atmosphere side with a capacitive button
Permeation, or the permeability coefficient, of a polymer refers to the volumetric flow of gasses, under controlled conditions, through the material’s surface. Permeability does not equal leakage! Leakage refers to gasses that flow around the seal. Permeation is a fundamental property of elastomers and is often desired to measure the rate of transmission or diffusion of gas through the material.
Multi-stage dry vacuum pumps have been commercially available for over 30-35 years. Early versions were generally water-cooled, and in more recent years some air-cooled versions have been introduced. Due to the fact that typically 4-6 stages of compression are required to attain pressures close to what oil-sealed pumps are capable of in just two stages, multi-stage dry pumps create a significant amount of heat and require more cooling, specifically in the latter stages. The air-cooled versions of these pumps are also considered PoU (point of use) as they require no water or other facilities besides AC power.
Magnetron sputtering is a form of deposition technology that employs a gaseous plasma and kinetic energy to create a flux of ‘sputtered’ material used to coat surfaces under vacuum. The high-energy ions present in a magnetron sputtering plasma bombard the surface of the target (source material) and liberated atoms by the sputtering process to create this vapour cloud. The vapour moves through the vacuum area, depositing onto a substrate surface to create a thin film covering.
Since 2000 Vacuum Technology & Coating Magazine has been the industry's leading source for the latest articles, news, and product and service information. Below we describe some of the terms that you will find in a typical issue of VT&C.
Vacuum Coating (Vacuum Deposition and Thin Film Deposition) is the process of depositing a film or other material atom by atom or molecule by molecule onto a surface in a low pressure environment or vacuum.
Physical Vapor Deposition or PVD refers to vacuum deposition methods which involve the material (which is being deposited) going from a condensed phase to a vapor phase and then to a thin film condensed phase. Sputtering and evaporation are common PVD processes.
Sputtering refers to a type of process used to deposit thin films and employs a plasma to bombard and eject atoms from a target source.
Evaporation refers to the heated source material being evaporated in a vacuum. Vacuum allows vapor particles to travel directly to the target object, where they condense back to a solid state. (called a Deposition Source) refers to a type of process used to deposit thin films and employs a plasma to bombard and eject atoms from the target source (called a Deposition Source).
Vacuum Hardware refers to the types of hardware and components that are used in the vacuum process. There are many types of hardware used in this process, some examples are flanges, fittings, seals, valves, and chambers.
Thin Film Metrology involves determining the optimal thickness, composition and/or condition of a coating through various techniques and mathematical calculations.
Gas Analytical Systems are used in the analysis of residual gases within a low pressure environment or vacuum.
Vacuum Pumps are devices that remove gas atoms and molecules for the purpose of leaving behind a partial vacuum. Some examples of types of vacuum pumps are rotary vane pumps, diaphragm pumps, and scroll pumps.
Every issue of VT&C includes a product showcase focused on a specific topic relevant to Vacuum Processing, please see our editorial calendar which lists the topic for each issue.
