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Metal Bond Diamond Back Grinding Wheel

Metal bonded diamond back thinning grinding wheels are mainly used for backside thinning of sapphire epitaxial wafers, silicon wafers, gallium arsenide, and GaN wafers in the LED industry.Excellent grinding performance and high cost performance
Applications Sapphire epitaxial wafer, silicon wafer, gallium arsenide, GaN wafer
Diameter 304mm,254mm,255mm,175mm,150mm
Mold 6A2T
Applicable grinding machines NTS, SHUWA, ENGIS, Okamoto , Disco, TSK and STRASBAUGH, etc
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metal bond diamond back grinding wheel
back grinding wheel for wafers
back grinding wheels
back grinding sic wafers
metal bond diamond back grinding wheel
back grinding wheel for wafers
back grinding wheels
back grinding sic wafers
Metal bond diamond back ginding wheel
Features of metal diamond back thining wheel

• The ground workpiece has high precision and good surface quality

• Good shape retention of the workpiece

• High grinding efficiency

• Small grinding force and low grinding temperature

Procession of wafer thining

Wafer thinning generally uses wafer rotation grinding, and the processing process includes rough grinding and fine grinding. The axial feed speed of rough grinding is high, and a diamond grinding wheel with a larger particle size is used to quickly remove about 90% of the machining allowance; the axial feed speed of fine grinding is small, and a diamond grinding wheel with extremely small particle size is used. , there are two purposes of fine grinding: one is to remove the remaining 10% machining allowance, and the other is to eliminate the damage layer caused by rough grinding.

Specifications of metal diamond back grinding wheel
Model D (mm) T (mm) H (mm)
6A2 H6A2/6A2H 175 30, 35 76
200 35 76
350 45 127
6A2 T6A2T 195 22.5, 25 170
280 30 228.6
6A2 T6A2T(three ellipses) 350 35 235
209 22.5 158
Other specifications can be produced according to customers’ requirement.
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