Hangzhou Freqcontrol Electronic Technology Ltd. |
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4inch Single Crystal Quartz Wafer 42Y Cut Double Side Polish
Quartz crystal is currently the most used crystal and is an important electronic material. When a quartz wafer cut in a certain direction is subjected to mechanical stress, an electric field or charge proportional to the stress will be generated. This phenomenon is called the positive piezoelectric effect.
BonTek grows crystal and fabricate wafers, we are piezoelectric specialist. We work mostly with wafers and substrates made from Quartz Crystal, Lithium Niobate, Lithium Tantalate etc.
Material | LiNbO3 Wafer | LiTaO3 Wafer | Quartz Wafer |
Diameter | 3’’, 4’’, 6’’, 8’’ | 3’’, 4’’, 6’’ | 3’’, 4’’, 5’’, 6’’, 8’’ |
Cut Type | X / Y / Z 36Y / 64Y/128Y | X / Y-Z / X-112Y 28Y / 36Y / 42Y | X / Y / Z AT / ST / DT / BT |
Surface | Single side polish / Double side polish / Lapped | ||
Thickness | 0.25mm / 0.35mm / 0.50mm | ||
TTV | < 5 um or as per required | ||
PLTV | >98% (5mm*5mm) <1.5um | ||
Bow | -25um < Bow < +25um or as per required | ||
Warp | < 30um or as per required | ||
Roughness | Ra<0.5nm, Ra<1nm | ||
Curie Temperature | 1142℃ ± 2℃ | 605℃ ± 2℃ | 573℃ |
Edge | Round Ground, Bevelled | ||
Flat | 22±2mm, 32.5±2mm, 47.5±2mm, 57.5±2mm, Semi-Notch, As per request | ||
Doping | Er, MgO | Fe | with or without seed |
Front Side | Roughness Ra<= 1nm | ||
Backside | Roughness Ra: 0.2--0.7um GC#1000, GC#2000 | ||
Appearance | No Cracks, saw marks, stains | ||
Single Domian | Completed Polarization / Reduced | No Stress |
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