Tip etching

Tip making, etching and that sort of things:

• https://iopscience.iop.org/article/10.1088/2632-959X/abb6c4/pdf

• https://www.ttakami.com/DCtipEtching/DCtipEtching.html - a great vault of images on how etched tips look like (good and bad ones)

• https://iopscience.iop.org/article/10.1088/0957-0233/10/1/006/pdf - Nice reference paper for tungsten tips

• https://pubs.aip.org/aip/rsi/article/74/2/1027/348811/A-double-lamellae-dropoff-etching-procedure-for - electromechanical etching of qplus sensors

• https://www.precisionmechatronicslab.com/wp-content/uploads/2022/01/2020_J_QPlus_Analysis_v12_final.pdf - Beautiful characterization of qplus sensors in different modes of vibration/ Great detail explaining how does it look in reality.

• https://www.sciencedirect.com/science/article/pii/S1567173915001923 - More qplus electroetching

• https://www.sciencedirect.com/science/article/pii/S0304399115001424 - Building up a tuning fork from scratch in qplus configuration using a FIB.