Used GATAN 691 #293637123 for sale

GATAN 691 is an ion milling equipment developed by GATAN Inc. that meets the demands of both high speed etching and high precision finishing of a wide variety of materials. It is a highly accurate, fully automated ion milling system with easy-to-use controls. The unit is capable of etching and polishing samples made of such materials as aluminum, tungsten, stainless steel, titanium, silicon and glass. 691 allows users to quickly etch or finish their samples with its simple, user-friendly controls. The machine uses a combination of gas ion source within the vacuum chamber to create a controlled, intense beam of energetic gas ions that are focused onto the sample with precision. This beam of energetic gas ions bombards the sample, slowly removing layers of material from the surface of the sample. The thickness of material removed with each pass is determined by the voltage applied to the sample and the duration of the pass through the beam. The tool is capable of precisely etching samples with accuracy up to 0.5nm to many hundreds of nanometers. GATAN 691 comes with a built-in safety asset that monitors ion current levels and automatically shuts off the beam before levels become too high. This ensures that the samples do not become exposed to excessive levels of ion bombardment, which could potentially damage them. 691's chamber is also equipped with an advanced electrostatic shielding model to further protect samples from contamination while they are being processed. It is capable of maintaining a consistent vacuum level of 8 to 10 umHG, allowing for a wide range of ion milling techniques. GATAN 691 is also equipped with digital touchscreens that offer users a variety of control functions, such as easy material selection, beam alignment, current level adjustment, and user-defined etch programs. The screens also provide real-time monitoring of mill parameters so that users can easily adjust their parameters as the process progresses. In summation, 691 is an ideal solution for etching and finishing with high speed and precision. Its multiple safety features and easy-to-use controls make it a reliable and cost-effective solution for a wide range of materials.