Wafab International

Silicon raw materials cleaning – etching and cleaning of raw silicon “chunks” Silicon substrate etching and cleaning – for blank solar substrate materials Solar cell cleaning, etching and surface preparation – for surface treatment of printed solar cells Silicon “chunk” cleaning – usually requires a dilute cleaning solution with ultrasonic agitation capability. Typical process sequence is a multistep process including initial clean and rinse with ultrasonics, dilute acid wash, final rinse and dry. Similar tools are also used to clean scrap material from the ingot process – where “tops” and “tails” of the silicon ingots are collected and chemically processed and reclaimed previous to remelt into the crystal growingingot pulling tools. Wafab process tools may provide high volume processing of loads up to 450 lbs. using special robot assist mechanisms.

Wafab designs and manufactures a variety of chemical management equipment, including chemical storage and dispensing systems for aqueous and solvents chemicals. Our product portfolio ranges from basic fire drum storage cabinets to sophisticated PLC-controlled precision dispensing systems. Each system is configured to provide a cost-effective chemical handling solution for your budget and your application.

Wafab International designs and manufactures a complete line of automated wet benches, designed to provide maximum device throughput, operator safety and ease of use. Operator errors are virtually eliminated through the use of the scheduling software and the automated transport system providing highly controlled, repeatable processing of the most sensitive wafer substrates.

WAFAB International offers a variety of laboratory fume hood designs – one for any application and every budget – wherever hazardous fume containment is required. The major differences in Fumehood design is in the front opening technique. WAFAB offers standard solid front clear sashes which may be designed as solid sliding doors, solid piece liftup sashes or two-piece front sashes. Our two-piece front sashes are ideal for areas with limited headroom – see our illustrations on this page.

WAFAB has worked with many plating engineers in design and construction of specialized plating tools for electroless and electrolytic plating applications. For these types of applications fume removal and precious metal recovery is needed as well as the design and build of special fixtures which are required to hold the devices in place during electroplating.

WAFAB’s Chemtran™ series of chemical carts are specifically designed to safely transport fresh or spent chemistry throughout the fab. The chemical cart is constructed with 110% secondary containment and a simple pneumatic control system with liquid level detection, making the cart a safe, reliable and user friendly alternative to the more sophisticated and expensive systems. WAFAB also offers many choices of materials for construction for the cart shells and the inner containment tank