Patent ID: 8822258

Claim:
A wafer-level bonding method for fabricating wafer level camera lenses comprising: step 1 : providing a sensor wafer and a lens wafer, the lens wafer including lenses arranged in an array, the lens array including more than two lenses, the sensor wafer including sensors arranged in an array, the sensor array including more than two sensors, each sensor including a cover glass; step 2 : measuring and analyzing an FFL of each lens of the lens wafer to obtain a corresponding FFL compensation value for each lens; step 3 : forming a thin transparent film on each sensor of the sensor wafer, a thickness of the thin transparent film being determined according to the FFL compensation value of the corresponding lens; and step 4 : aligning and bonding the lens wafer with the sensor wafer having thin transparent films formed thereon; wherein in said step 3 , each thin transparent film is formed on each sensor of the sensor wafer by a Step-and-Repeat molding method; and wherein said thin transparent film is formed on a sensor of the sensor wafer only if the FFL compensation value of the corresponding lens is not zero.