I was looking for 10 -20 diced fused silica samples 20 mm x 20 mm with a thickness of 1 mm.
Diameter: 20 x 20mm
Surface: Double Side Polished
OH Content: <1,200ppm
1 Corner chamfered
UV Grade(JGS1) and Standard Grade (JGS2)
Fused Silica Mirrors -coated with metallic mineral on one side of the wafer.
Fused Silica Wafer UV Grade(JGS1)
2 inch diameter and (2 mm and 2.5 mm thicknesses)
Surface Flatness: wave/4 (PV) @633 nm
Surface irregularities < 5 nm
We can deposit gold onto fused silica wafers. Recently a research client asks the following:
The material of wafer: Fused Silica
In addition, I want a partial coating on those thin wafer.
Metalization: Gold (Au)
Mask: Diameter: 0.5...1.5 mm circular area (blue) coated with gold and with 3.3mm pitch between coated areas.
Please ignore those black circles and the drawing is not a true scale. I would update it.
Below are just some of the fused silica wafers that we have in stock. We have smaller and larger dimaeters with very thick and very thin availble. Please ask us about our deposition services.
Please email us your specs or buy online here!
JGS2 Fused Silica Top side Ra <1nm, Backside Roughness Ra <1nm, S/D 40/20
1 Flat JGS2 Primary Flat 32.5+/-2mm, Top Side Ra <10A, S/D 40/20
Mechanical Grade Fused Silica
Fused Silica JGS2 Warp <30um Bow <30um, TTV <10um, Top side Ra <1.0nm Backside Ra <1.0nm, S/D 60/40 Flat: 32.5+/-2mm
Fused Silica Wafer, JGS2, C Bevel, 2.50 mm +/- 0.10 mm
A research client asked:
Question 1: Looking for 150mm (6”) LiNbO3 substrates, 500um thick, 128 degree Y-cut, SAW grade, DSP Double Side Polished, Notched (SEMI standard notch), Serialized (Need serialized) also since these are delicate, do you offer them on glass? Minimum order quantity and would be ramping up to Volume quantities of: 200, 800, 1500, and 3000 wafers Question 2: 150mm (6") Quartz wafers, DSP, 635um SEMI Notch, Serialized (or what other thicknesses available) (Single Crystal X-Cut) Looking for this in any or all of these materials – Quartz, Fused quartz, Fused Silica We specifically are evaluating the Thermal Expansion and Fluorescence/ auto-fluorescence properties. Minimum quantity, lead time.
UniversityWafer, Inc. Reply
|Diameter||Material||Orientation||Thickness||Surface Finish||Primary Flat||Brand/Grade||Warp||Bow||TTV||Top side Ra||Backside Ra||Remark|
|150+/-0.3mm||LiNbO3||128Y-cut||0.5+/-0.03mm||DSP||NOTCH or 47.5+/-2.5mm on+Z||SAW||<40um||<40um||<10um||<1nm||<1nm||JAR|
|Diameter||Brand/Grade||Thickness||Surface Finish||Primary Flat||Material||Bow||TTV||Top side Ra||Backside Ra||package||shipment term||pay term|
|150+/-0.3mm||JGS2||635+/-25um||DSP||47.5+/-1.5mm||Fused quartz||<40um||<10um||<1nm||<1nm||Jar||ex-work||T/T AD|
|150+/-0.3mm||JGS1||635+/-25um||DSP||47.5+/-1.5mm||Fused Silica||<40um||<10um||<1nm||<1nm||Jar||ex-work||T/T AD|
|Diameter||Material||Orientation||Thickness||Surface Finish||Primary Flat||Brand/Grade||SEED||Top side Ra||Backside Ra||shipment term|
This is a large concept， there are many different materials for fused quartz and Fused Silica .
Fused Quartz is defined as a material made by melting high purity, naturally occurring quartz crystal. The melting is conducted at around 2000°C, using either an electrically heated furnace (electrically fused) or a gas/oxygen fueled furnace (flame fused). Fused quartz is amorphous and non-crystalline.
Residual impurities from the raw material affect Fused Quartz transparency in the ultraviolet. Such as JGS2,
Fused Silica (also known as Synthetic Fused Silica) is made from a silicon-rich chemical precursor, usually using a continuous flame hydrolysis process, which involves chemical gasification of silicon, oxidation of this gas to silicon dioxide, and thermal fusion of the resulting dust (although there are alternative processes).
This results in a transparent glass with an ultra-high purity and improved optical transmission in the deep ultraviolet. Water vapor, generated as a byproduct during the fabrication process,
affects the transparency of fused silica in the infrared. Such as Corning 7979, 7980 JGS1, JGS3 etc
We can laser mark our Fused Silica, Fused Quartz and Lithium Niobate (LiNbO3) Substrates