LED chip manufacturing process
fecha:2011-06-17 13:41
estado:para resolver
pregunta:admin
ocess is very complex, after the show finished wafer, the next step began on the LED epitaxial films as electrode (P pole, N-pole), and then they start cutting with the laser LED epitaxial wafers (before cutting LED epitaxial wafers with a diamond knife, major), made into chips after taking different positions on the wafer parametric testing done at nine points, as shown:
1, mainly on the voltage, wavelength, brightness test, meet the normal standard parameters of the wafer shipments continue t
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02/06 15:54