Patent ID: 9123832
Filing Date: 2015-09-01
Classification: B81C,H01L

Abstract:
1. A method of fabricating a subwavelength nanostructure for antireflection, comprising: coating a solution containing a combination of metal ions with organic or inorganic ions on a semiconductor substrate; sintering the coated solution using an annealing process to grow nanoscale metal particles; and chemically etching the substrate using the grown nanoscale metal particles as a mask or accelerator to form the subwavelength nanostructure on the substrate; wherein the metal ions are bonded to other metal ions via the annealing process to grow subwavelength metal particles having a controllable size, and wherein when the grown nanoscale metal particles are used as accelerator, a portion of the substrate that contains the grown nanoscale metal particles is only etched or etched at a higher rate than a remaining portion of the substrate.