Patent ID: 8652867

Claim:
A method of manufacturing a micrometer-scale grid structure based on single crystal silicon, comprising: Step a): Etching trenches on the top surface of a single crystal silicon wafer; Step b): Depositing a first material on the top surface of the silicon wafer so as to fill the trenches and simultaneously forming a thin film on the top surface of the silicon wafer; Step c): Flatting the top surface of the silicon wafer which is covered by the thin film; Step d): Etching the thin film according to a designed pattern; Step e): Etching the bottom surface of the silicon wafer until the first material filled in the trenches exposed; Step f): Dry etching the top surface of the silicon wafer so as to form the grid structure; Step g): Removing the thin film remains on the grid structure; and Step h): Depositing a second material on the grid structure.