Used SSI 1A #9228956 for sale

SSI 1A is a Photoresist equipment which is used as an industrial processing technique for the production and fabrication of circuit boards. It utilizes a light-sensitive photoresist film which is applied to a substrate like a substrate coated with copper. During the fabrication process, the film is exposed to a light source such as a light-emitting diode (LED) or a mercury arc lamp, which causes a chemical reaction in the film that makes it resistant to some substances while allowing others to be etched into it. The photoresist system works by first applying a photoresist material to the board's surface. The resist material is sensitive to the wavelength of the light source, which produces a chemical reaction causing the photoresist to harden where exposed to the light source and remaining soft where unexposed. The board is then treated with a developer, which removes the portions of the photoresist that are not exposed to the light. This leaves only the hardening photoresist in the areas that were exposed to the light source. The next step of the process involves etching away select portions of the board, which are determined by the pattern of photoresist exposed to the light. For example, it is possible to apply and harden the photoresist over certain portions of the board in order to create a track for the electrical components to be mounted on. Using the photoresist unit, it is possible to etch with precision and detail far beyond what is achievable with manual techniques. Once the circuit board has been etched, the photoresist can be removed with a strong solvent or it can be stripped away gently. After the photoresist mask has been removed, copper plating is often added before further processing, such as soldering components. In summary, 1A is a photoresist machine which is used to produce circuit boards by etching with precision and detail. The light-sensitive photoresist film is applied to the board's surface, then exposed to a light source which causes it to harden where exposed and remain soft where unexposed. By manipulating the light source, it is possible to create a pattern of hard photoresist on the board which then can be etched away to create the necessary tracks for the electrical components. After etching and removing the photoresist, the board is ready for further processing, such as copper plating and soldering components.