Used OAI J500-IR/VIS #9267335 for sale

OAI J500-IR/VIS is a mask aligner developed by OAI. This device uses short wavelength infrared (IR) or visible (VIS) radiation to perform critical lithographic steps on integrated circuit (IC) substrates. This makes the process of semiconductor fabrication accurate, precise, and efficient. The device is based on a patterned stepped quartz substrate, that is aligned to the surface of the wafer. The semiconductor substrate is then exposed to infrared radiation, which is then used to precisely position the patterned quartz substrate above the wafer. OAI J500-IR/VIS features a liquid crystal display (LCD) to align the p+elements with the patterned quartz substrate. The alignment procedure begins with an accurate positioning of the substrate based on the LCD. Then, a series of ultra-violet (UV) light sources are used to irradiate the substrate. The patterns are accurately transferred to the substrate by appropriately controlling the movement of the UV light. The UV light reflects off the quartz onto the substrate, transferring the defined pattern onto the wafer. The accurate pattern registration and alignment achieved by OAI J500-IR/VIS, is made possible by the incorporation of a vacuum chamber and an expandable bellows system. Once the pattern is transferred, the vacuum system maintains the pressure in the chamber, helping align the mask perfectly with the substrate. The flexible bellows helps in maintaining the pressure in the chamber, increasing its overall accuracy. The device allows the users to make a variety of modifications and adjustments. This includes the choice of aligner, exposure angle, alignment systems and illumination conditions. The device is also upgradable and customizable with additional features and options. Popular application areas for OAI J500-IR/VIS include MEMS, display, microstructure, laser optics, medical and optoelectronic devices, as well as semiconductor devices. OAI J500-IR/VIS is an ideal choice for any IR or VIS projection aligner requirements, as it offers a high-resolution image and excellent speed.