Кристаллическая Заводская кварцевая однокристаллическая подложка SiO2 от

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Описание и отзывы

Характеристики


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SiO2 single crystal crystal wafer is an excellent substrate for microwave filters in the wireless communication industry.





















































































Main performance parameters


Growth method


Hydrothermal


Crystal structure


Six parties


Lattice constant


a=4.914Å c=5.405 Å


Melting point (℃)


1610°C (phase transition point: 573.1°C)


density


2.684g/cm 3


hardness


7 (mohs)


Hot Melt


0.18cal/gm


Thermal conductivity


0.0033cal/cm℃


Thermoelectric constant


1200uv/℃ (300℃)


Refractive index


1.544


Thermal expansion coefficient


α11: 13.71×10 6 /℃ α33: 7.48×10 6 /℃


Q value


1.8×10 6 min


Sound speed, sound meter level


3160 (m/sec)


Frequency constant


1661 (kHz/mm)


Piezoelectric coupling


K2(%) BAW: 0.65 SAW: 0.14


Crystal orientation


Y, X, or Z-cut, rotation of an arbitrary value within 30º ~ 42.75 º ± 5 minutes scope
primary orientation: according to customer requirements direction ± 30 min
-time positioning side: according to customer requirements direction
seed: in the center, the width <5mm , Height>66mm


Polished surface


Epitaxial polishing: single polishing or double polishing Ra<10Å
working area: substrate diameter -3mm
curvature: Φ3″<20um, Φ4″<30um
working area without chipping, on the edge, chipping width <0.5mm
pits and scratches :Each piece<3, every 100 pieces<20


Standard thickness


0.5mm±0.05mm TTV<5um


Standard diameter


Φ2″(50.8mm), Φ3″(76.2mm), Φ4″(100mm)±0.2mm
Primary positioning edge: 22±1.5mm (Φ3″) 32±3.0 (Φ4″)
Secondary positioning edge: 10mm±1.5mm



 

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Q: Are you trading company or manufacturer ?
     We are factory.
Q: How long is your delivery time?
    Generally it is 3-5 days if the goods are in stock.
    or it is 7-10 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
    Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
     Payment <=5000USD, 100% in advance.
     Paymen >=5000USD, 80% T/T in advance , balance before shippment.


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