1. Industry-leading processing power (for smartphone cameras) Current status: UPH1000
2. Applicable to each module (for smartphones, automotive, industrial cameras)
3. Applicable to large sensors larger than 1 inch
4. Proposal of measures to reduce total yield loss and improve utilization ratio
What is Active Alignment (AA)
This device adjusts the optical axis of the sensor and lens unit with a 6-axis alignment unit during assembly of the camera module, and then fixes them with UV + thermosetting adhesive while keeping the adjustment completed.
This system prevents one-sided blurring that occurs around the screen and improves image quality and yield.
Effects of Active Alignment
AA Adjustment Process and Accuracy
1.Apply UV+thermosetting resin to sensor module
2.Supply lens + VCM or holder
3.Supply ① and ② to AA stage
4.Obtain defocus characteristics
5.Calculate correction value
6.Adjust 6 axes (X, Y, Z, θ, Xθ, Yθ) corresponding to correction values
7.UV irradiation in corrected state
8.Discharge module after AA
One AA adjustment, center and peripheral peaks are aligned, AA complete.
Optical center value achieves less than ±10um misalignment between sensor center and lens luminance center, and if even higher precision is required, X,Y adjustment is possible during AA.
AA equipment proposal according to application
|use||AA Stage||UPH *||FOV (angle of view)||handler|
|smart phone||～4||～1000||～150°||fully automatic|
Yield improvement options
Pre-tests of modules to be fed into AA can be installed in the equipment for screening upon request.