Used SEMITOOL WSST-421 #9404286 for sale

SEMITOOL WSST-421 is a piece of equipment designed to process photoresist on a substrate. Photoresist technology is a method of etching a desired pattern into a substrate by selectively exposing it to light. This type of equipment is commonly used in the semiconductor industry for creating ever-smaller circuits and components. WSST-421 utilizes a single peak, UV exposure equipment to develop the photoresist pattern. SEMITOOL WSST-421 is an automated system which provides accurate, repeatable photoresist processing results. Working with an alignment indexing unit, the machine can efficiently load, align and expose substrates. The multi-zone hotplate controls the temperature of the substrate, ensuring that the photoresist is consistently applied to the substrate. This hotplate feature also reduces moving parts, resulting in faster and smoother operation. WSST-421 utilizes a high-frequency, neutral pH photoresist developer which is designed to provide consistent etching results. The hotplate temperature can be controlled to ensure that different developers can be used to achieve different degrees of etching. The speed at which the photoresist is applied to the substrate can be adjusted, as well as the exposure time (which is adjustable up to 9 seconds). In addition, SEMITOOL WSST-421 offers numerous safety features. It automatically shuts off when not in use and includes a safety interlock machine. The substrate holder design ensures that the substrate is securely clamped and its height is accurately measured. Finally, the machine requires very little maintenance, a welcome feature for those operating in production environments. In summary, WSST-421 is an automated, high-precision photoresist tool that provides efficient, accurate, and repeatable results. With its adjustable temperate and exposure settings and its intuitive design, SEMITOOL WSST-421 is an ideal choice for photoresist processing for any application.