JGS1 JGS2 JGS3 Customized Fused Silica Wafer and BF33 C7980 BK7 H-K9L Glass Wafers
The glass wafers are widely used as bonding material with silicon wafers in semiconductor industry. BonTek provides Borofloat 33 (BF33) glass wafers with very good surface quality. TTV could be as low as 1.5um to 5um, Bow/Warp as 7um, Ra 0.5nm depending on the wafer diameter. We possess the wire saw, grind and polish machines, laser marking machine, and test instruments all in house, which enable customization, quality control and fast delivery with very low cost for you!
Other glass brands we work on are Feilihua (JGS1, JGS2, JGS3), Corning (7979, 7980, Eagle XG, Gorilla), Schott (BF33, Pyrex, MEMpax, B270, D263T, Zerodur), Ohara (SK1300), Heraeus, GM (H-K9L) etc.
Spec | 4" | 6" | 8" | 10" | 12” | 13’’ |
Diameter | 100mm | 150mm | 200mm | 250mm | 300mm | 325mm |
Thickness | 0.10mm up | 0.30mm up | 0.40mm up | 0.50mm up | 0.50mm up | 0.50mm up |
Primary Flat | 32.5mm | 47.5mm / 57.5mm / Notch | Notch | Notch | Notch | Notch |
LTV (5mmx5mm) | < 0.5um | < 0.5um | < 0.5um | < 0.5um | < 0.5um | < 0.5um |
TTV | < 2um | < 3um | <3um | <10um | <10um | <10um |
Bow | ±20um | ±30um | ±40um | ±40um | ±40um | ±40um |
Warp | ≤ 30um | ≤ 40um | ≤ 70um | ≤ 80um | ≤ 80um | ≤ 80um |
Edge Rounding | Compliant with SEMI M1.2 Standard/refer to IEC62276 | |||||
Surface Type | Single Side Polished / Double Sides Polished | |||||
Polished side Ra | Ra≤1nm | |||||
Back Side Criteria | Ra 0.2-0.7um or Customized |
Product | BOROFLOAT 33 |
Density | 2.23 g/cm3 |
Modulus of Elasticity | 63 kN/mm2 |
Knoop Hardness HK 0.1/20 | 480 |
Poisson’s Ratio | 0.2 |
Dielectric Constant (@ 1 MHz & 25°C) | 4.6 |
Loss Tangent (@ 1 MHz & 25°C) | 37 x 10-4 |
Dielectric Strength(@ 50 Hz & 25°C) | 16 kV/mm |
Refractive Index | 1.472 |
Dispersion (nF - nC) | 71.9 x 10-4 |
Feilihua Model | JGS1 | JGS2 | JGS3 |
Maximum Size | <Φ200mm | <Φ300mm | <Φ200mm |
Transmission Range (Medium transmission ratio) | 0.17~2.10um (Tavg>90%) | 0.26~2.10um (Tavg>85%) | 0.185~3.50um (Tavg>85%) |
OH- Content | 1200 ppm | 150 ppm | 5 ppm |
Fluorescence (ex 254nm) | Virtually Free | Strong v-b | Strong V-B |
Impurity Content | 5 ppm | 20-40 ppm | 40-50 ppm |
Birefringence Constant | 2-4 nm/cm | 4-6 nm/cm | 4-10 nm/cm |
Melting Method | Synthetic CVD | Oxy-hydrogen melting | Electrical melting |
Applications | Laser substrate: Window, lens, prism, mirror... | Semiconductor and high temperature window | IR & UV |
FAQs:
A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.
A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.
A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.
A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.
A: Sure. Factory inspection is important for large quantity purchase and long-term cooperation. Face to face discussion is what we mostly confident with. During the past years, big names around the world have witnessed our progress in factory build-up. These days, due to the Covid-19 pandemic, we also had the experience of videoconferencing with global buyers.
Acceptance Check