About LED chip manufacturing process
Date:2011-05-21 10:10
Status:Close
Question:admin
ser LED epitaxial wafers (prior to cutting LED epitaxial wafers with a diamond knife, mainly), Manufacturing into the chip, the wafer taken different positions on the nine points made parameters.
1, the main voltage, wavelength, brightness tests, to meet the normal standard parameters of a wafer shipments continue to do the next step, if the nine do not meet the requirements of the test wafer to put aside other treatment.
2, the wafers into chips, the 100% visual inspection (VI / VC), the op
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