Emit a laser with a wavelength of 800 nanometers and irradiate the silicon wafer at a frequency of nanoseconds, picoseconds and femtoseconds to avoid excessive damage to the silicon wafer caused by the laser
A laser with a wavelength of 800 nanometers is sent out and the silicon wafer is irradiated at the frequency of nanoseconds, leather seconds and femtoseconds to avoid the damage caused by the laser to be too deep.
A laser with a wavelength of 800 nm is emitted to irradiate the silicon wafer at the frequency of nanosecond, picosecond and femtosecond to avoid the damage of silicon wafer caused by laser<BR>