Links
[1] https://www.google.com/url?q=https%3A//drive.google.com/open%3Fid%3D1zAMcibO4PXAGffx38OJc6pQjI0VW7wIU&sa=D&ust=1568552691759000&usg=AFQjCNFBN9A2iJ2vo1nQdpukizLE-DnS7Q
[2] https://www.google.com/url?q=https%3A//drive.google.com/open%3Fid%3D1UFLhq64wfwO407NqvLYPkeqB53AtU-Qj&sa=D&ust=1568552691760000&usg=AFQjCNETmem3pJrpkU8ANvVbA5Emlx507A
[3] https://snfguide.stanford.edu/snf/project-type/e241
[4] https://snfguide.stanford.edu/guide/equipment/purpose/etching/dry-etching