Selective Etching of Glasses
Original Publication Date: 1978-Aug-01
Included in the Prior Art Database: 2005-Feb-21
Small shapes can be achieved by etching in glass by forming an electrolyzed glass layer of up to 10 microns thick over a glass member. At 500V, 300 Degrees C for 30 minutes a layer 5 microns thick is produced. The layer provides a 5:1 acid-resistant ratio over the glass member. The desired shape can then be achieved using the etch-resist ratio.