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Atomic Layer Etching: Rethinking the Art of Etch


Atomic layer etching (ALE) is the most advanced etching technique in production today. In this Perspective, we describe ALE in comparison to long-standing conventional etching techniques, relating it to the underlying principles behind the ancient art of etching. Once considered too slow, we show how leveraging plasma has made ALE a thousand times faster than earlier approaches. While Si is the... » read more

What’s Next For Atomic Layer Etch?


After years in R&D, several fab tool vendors last year finally began to ship systems based a next-generation technology called atomic layer etch (ALE). [getkc id="284" kc_name="ALE"] is is moving into 16/14nm, but it will play a big role at 10/7nm and beyond. The industry also is working on the next wave of ALE technology for advanced logic and memory production. Used by chipmakers fo... » read more

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