[lemma=high] [□] □
[lemma=high] [□=□] □
[lemma=high] [□ & □] □
But they also have pretty high aspect ratio , so low drag from lift too . Description : The process enables the production of high aspect ratio , freestanding microstructures using SU-8 , a negative-acting , ultraviolet-sensitive photoresist that is widely used in microfabrication .