on front   Protective coating for KOH etch (ProTEK)   |  
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        | Batch size | 
            25 | 
            
            | Material | 
            ProTEK B1-18 | 
            
            | Sides processed | 
            either | 
            
            | Temperature | 
            205 °C | 
            
            | Thickness | 
            0 .. 2 µm | 
            
            
            
            | Equipment | 
            Headway Programmable Photoresist Spinner | 
            
            
            
              | Equipment characteristics: | 
            
            | Piece dimension Range of wafer piece dimensions the equipment can accept  | 
            1 .. 6 inch | 
            
            | Piece geometry Geometry of wafer pieces the equipment can accept  | 
            circular, irregular, other, rectangular | 
            
            | Piece thickness Range of wafer piece thickness the equipment can accept  | 
            200 .. 800 µm | 
            
            | Wafer materials List of wafer materials this tool can accept (not list of all materials, just the wafer itself).  | 
            gallium arsenide, glass (category), other, silicon | 
            
            
            
              | Comments: | 
            
            
        
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