Specific Process Knowledge/Etch/Etching of Chromium: Difference between revisions

@@ Line 7: / Line 7: @@
 Etch rate are depending on the level of oxidation of the metal.
+====How to mix the Chromium etch 1:====
+#Take a beaker and add 15g of cerium sulphate.
+#Add a little water while stirring - make sure all lumps are gone.
+#Add water until 600 ml - keep stirring (use magnetic stirring)
+#Add 90 ml HNO<math>_3</math>
+#When the cerium sulphate is completely dissolved (Clear liquid) you can add the other 600 ml of wafer.