https://imgur.com/B1BRkdd
https://imgur.com/Zvib5rK
https://www.slideshare.net/642020/lecture-4-wafer-clean-and-cleanroom
https://www.slideshare.net/642020/931215fareast3
https://asrc.gc.cuny.edu/content/uploads/sites/4/media/member-resources/
chemicals/RCA-Clean-SOP.pdf
http://www.gptc.com.tw/tw/product/product_detail-16