#over the wavelength they already knew. He invented a system for keeping water perfectly #homogenous, and then he shot the light through 

#invented a system for keeping water perfectly #homogenous, and then he shot the light through it onto the wafer. Bingo. He could etch transistors 

#invented a system for keeping water perfectly #homogenous, and then he shot the light through it onto the wafer. Bingo. He could etch transistors