He recently worked out a relatively inexpensive and easy way to etch metals using some chemistry skill and a little bit of electricity. After preparing a set of stencils and cleaning the metal ...

Through via hole fabrication process by deep reactive-ion etching (DRIE): (a) Sample cleaning; (b) Deposition of mask material; (c) Transfer of desired pattern; (d) Desired pattern achieved; (e) ...

2, different patterns of attack may be observed with ... grade—sold as “99.8% Al”—and were given an identical etching treatment. With some of them the attack was widespread over the ...