Sapphire and LED

Standing in the light.

LEDs have long been omnipresent. But all light bulbs are far from being replaced. New LED and OLED technology designs are also being developed. And recognized new applications for this versatile light. We also have a lot of ground to cover in the area of substrates for these products.

The right solution for measuring tasks in the sapphire and LED industry

This is our domain - FRT measuring instruments are at home here. We offer optical surface measurement technology for various applications in the sapphire and LED sectors.

GLOBAL / LOCAL WAFER PARAMETERS

alt

Graphical display of local wafer parameters

alt

Full wafer thickness map in 3D view

alt

Wafer map with local parameters (LTIR, LTV, LT, LFPD, etc.)

ROUGHNESS

alt

DIN/ISO-compliant roughness and waviness measurement

alt

Profile on the rough side of a sapphire wafer, Ra=0.776 µm

alt

Profile on the polished side of a sapphire wafer, Ra=0.04 µm

TOPOGRAPHY TOP / BOTTOM

alt

Simultaneous topography measurement on both wafer sides

alt

Area measurement of top and bottom topography of a sapphire wafer

alt

Profile measurement of top and bottom topography of a sapphire wafer

TOPOGRAPHY (SHAPE, STRUCTURE)

alt

Standard topography measurement

alt

Full wafer topography map of bottom side sapphire wafer in 3D view

alt

Topography of a LED in 3D view

BUMPS

alt

Bump dimensions and coplanarity

alt

Area measurement of a wafer with PSS structures in 3D view

alt

Profile measurement along the blue line, bump height and width analysis

STEP HEIGHT / WIDTH

alt

Step height and width measurement

alt

Area measurement of a sapphire wafer with gold structure in 3D view

alt

Profile measurement along the red line, step height and width analysis

WAVINESS

alt

DIN/ISO-compliant waviness measurement

alt

Full topography map of a sapphire wafer in 3D

alt

Waviness of a sapphire wafer along the red line

ROLL-OFF AMOUNT / EDGE TRIM

alt

SEMI-compliant roll-off measurement

alt

Roll off Amount (RoA) profile pattern

alt

Profile on the edge of a sapphire wafer

Sapphire and LED

Although LEDs are now everywhere, not all light bulbs have been exchanged. Not all possible structural shapes of LED and OLED technology have been developed. And not all possible applications of this versatile lighting have been recognized. The substrate sector for these products also offers a great potential. FRT helps you to shed light on these possibilities and finally to make your way - we don't want to remain in the dark after all.