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Piranha solution
Etching (microfabrication) Etching tanks used to perform Piranha, hydrofluoric acid or RCA clean on 4-inch wafer batches at LAAS technological facility in Toulouse, France. Etching is used in microfabrication to chemically remove layers from the surface of a wafer during manufacturing. Etching is a critically important process module in ...
RCA clean - Wikipedia ... RCA clean
Piranha solution can be used to increase the surface density of reactive hydroxyl groups on the surface of silicon. The –OH groups can hydrolyze and subsequently form siloxane linkages (Si-O-Si) with organic silane molecules. Preparation of silicon surfaces for silanization involves the removal of surface contaminants.
Method 1: Hydrogen Peroxide and Baking Soda. Blot the stain: Start by blotting up as much of the stain as possible with a clean cloth. Avoid rubbing! Apply baking soda: Sprinkle a generous amount ...
Sodium treated PTFE will degrade with exposure to UV radiation. Immediately after sodium treatment, the PTFE surface is dark brown. The weaker the etching solution, the lighter the color change and the weaker the bond will be. [1] When exposed to UV radiation, the treated PTFE will gradually return to its original white color.
This page was last edited on 6 August 2007, at 19:43 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may ...
Buffered oxide etch
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