Used GCA 8500 #293634591 for sale

GCA 8500 is a wafer stepper, an advanced piece of equipment used in semiconductor manufacturing. It utilizes a laser beam to precisely etch an image on a wafer. This image can then be used to create integrated circuits, such as those found in computers and other digital devices. 8500 is a five-axis instrument, which means that it can move in multiple directions with each axis representing a different direction - up, down, left, right and rotational. This allows for extreme accuracy and repeatability when etching images. GCA 8500 is a precision instrument requiring intense attention to detail. It is loaded with features that make this wafer stepper highly reliable and accurate. All of its motion axes are controlled with a PLC (programmable logic controller) which enables complex movement trajectories to be programmed and stored. Meanwhile, its built-in encoders and sample lasers measure the position of the wafer's surface with extreme accuracy. Furthermore, laser-assisted focusing provides superior imaging quality, allowing for the etching of high-resolution images. 8500 uses a semiconductor laser with a wavelength of 355 nanometers which is capable of etching precise images at a resolution of 135 nanometers. The etching process is done through a series of pulses, and the precise timing of these pulses is achieved via a raster scan algorithm. This algorithm ensures that the laser and the stage move in a synchronized manner, resulting in precise and repeatable positioning. Safety is one of the primary concerns when working with GCA 8500, as the laser is extremely powerful and could cause injury if mishandled. To ensure safety, the system is equipped with a built-in protective front window that absorbs most of the laser's energy, and an exhaust system to reduce any excess laser radiation. In addition, laser interlocks are in place to stop the laser from emitting radiation in case of potential safety hazards. 8500 is considered to be one of the most precise and reliable wafer steppers available. Its ability to etch precise, high-resolution images makes it an ideal choice for those working in the semiconductor industry. With a variety of features that enable 'smart' scanning, GCA 8500 provides a reliable and precise wafer-etching solution.