Patent ID: 6368470
Filing Date: 2002-04-09
Classification: B32B,C23C,G02B,H01J

Abstract:
A method of forming an antireflection coating comprising the steps of:providing a substrate having a first surface; forming a hydrogenated first layer nearest to said first surface, including selecting said hydrogenated first layer to include a substantially transparent metal oxide having at least one of indium, tin and zinc, and further including intentionally introducing hydrogen into said metal oxide such that said hydrogenated first layer has a refractive index of less than 1.99; forming a high refractive index second layer in contact with said hydrogenated first layer, said second layer being substantially transparent; and forming a low refractive index third layer in contact with said second layer on a side opposite to said first layer, said third layer being substantially transparent; wherein said intentional introduction of hydrogen is implemented to reduce said refractive index of said first layer to be between refractive indices of said second and third layers.