💡🖼🗾️

#photolithography #mask aligner #ultraviolet light #patterning #wafer processing #semiconductor layers #lithography step #circuit pattern #layer deposition

⚪️✨⛏️

#photolithography #etching #wafer processing #layer deposition #patterning #semiconductor process #surface structuring

✨🦔➡️🌱🧠🖐️

#sonic hedgehog protein #shh ligand #morphogenesis #embryogenesis #developmental biology #cell growth #patterning