Used AMAT / APPLIED MATERIALS Chamber for DPS #293634864 for sale

AMAT, Inc. (APPLIED MATERIALS) DPS chamber is a wet etcher and dry-ash system that is used primarily for semiconductor-processing applications. DPS stands for the Department of Precision Services, the former name of this chamber. It is a horizontal-flow etcher and asher, meaning that it is typically operated with a liquid or solid chemistries that are circulated vertically through the interior of the chamber. The DPS chamber is constructed of stainless steel with a welded electrolyte-grade aluminum lining for durability and performance. Approximately one-third of the chamber is lined with a removable, high-temperature glass insert. The chamber also features a stainless steel vacuum seal around the gas-inlet and outlet ports. The chamber is designed to be able to process either a single wafer or multiple wafers simultaneously with a high degree of reproducibility and accuracy. The wafers are held in place inside the chamber by mechanical finger grips and are fixed to the baseplate of the chamber by a vacuum port. This allows the chamber to maintain a dense gas atmosphere and enables efficient wet etching and chemical-exchange operations. The chemistries used in the DPS chamber can vary depending on the application, but generally include hydrofluoric acid (HF), sulfuric acid (H2SO4), potassium hydroxide (KOH), citric Acid (Citric Acid), and a variety of other acids and bases. The wafers that are being processed are exposed to a chemical vapor or vaporized liquid mixture, often oxygen or nitrogen, which helps to facilitate the desired chemical etching or ashing process. The chamber is also equipped with an atmospheric-control feature to maintain a constant pressure within the chamber and minimize the risk of particle contamination. The chamber is connected to a vacuum system to provide a controlled and uniform pressure in the chamber, as well as to maintain a low pressure inside the chamber. On the exterior of the chamber, there are a number of controls and gauges that are used to manage the process within the chamber. These allow the operator to monitor the chamber pressure, the chemistries that are being used, and the temperature. In addition, the chamber can be equipped with a variety of sensors and alarms that allow the operator to track and monitor the progress of the process. The DPS chamber is an excellent tool for etching and ashing of semiconductor wafers. It provides a reliable and controlled environment for the fabrication of electronic devices. The chamber can be used for a variety of processes, including deep reactive ion etching (DRIE), wet etching, chemical vapor deposition (CVD), and chemical mechanical polishing (CMP). This reliable, repeatable, and accurate process makes the DPS chamber an excellent choice for fabrication of high-performance, high-precision components.