Technological Process of Diode
by RachelYe in Workshop > Lighting
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Technological Process of Diode
This is a short article about the technological process of diode. Hope you enjoy it.
Tip-out and Marking.
Clean and Oxidize to Improve the Growth of SiO2.
Add OAP and Well Stir the Glue.
Perform Exposure Optical Carving, Developing and Post-baking.
Hard Baking and Corrosion.
Hard Baking and Injection.
Stripping of Photoresist.
Knot Push and Oxidize B to Form P + Isolation.
Photoetching and Engraving Lead Holes.
Clean. and Oxidize P- Before Injection.
Inject P- to Increase the Voltage and Reduce Leakage Current.
Implement the Bleaching of Acid to Remove the Oxide Layer of Lead Holes.
Cleaning and Steaming Cr.
Alloy to Form an Alloyed Potential Barrier.
Striping Off Cr.
Cleaning and Evaporating the Aluminum.
Reversely Engraving the Aluminum.
Back Thinning.
Cleaning, Acid Bleaching and Back Metallization.
