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Off-Cut Sapphire Substrate 2 in C/A 4° SSP ATOMFAIR®

Off-Cut Sapphire Substrate 2 in C/A 4° SSP ATOMFAIR®

$32.90

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

Research-grade >99.99% monocrystalline Al2O3 2 in C/A 4° off-cut sapphire substrate, SSP, 430 ±25 μm thick, TTV <10 μm, Ra <0.3 nm front. Order now.

SKU: AF-WF-S-SOFF-02IN-S041
Category:
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Off-Cut Sapphire Substrate – 2 inch (50.8 mm) C/A off-cut 4 degree Single-Side Polished
Product Type: Off-cut sapphire substrate
Research-grade laboratory product
Product Overview

2 inch (50.8 mm) off-cut sapphire substrate is supplied as high-purity monocrystalline Al2O3 (KY) with C/A off-cut orientation and 4 degree off-cut selection.

The diameter-specific specification includes 430 +/- 25 um thickness, 16 mm primary flat, <10 um TTV, <15 um BOW and <15 um WARP.
Performance Features
  • Off-cut orientation and angle are shown as clear selectable specifications.
  • Single-Side Polished surface finish includes separate front-side and back-side roughness specifications.
  • Diameter-specific thickness, flat, TTV, BOW and WARP values are presented for specification review.
Technical Specifications
Parameter Specification / Available Values
Atomfair Model AF-SOC-CA2A4
Material >99.99% high-purity monocrystalline Al2O3 (KY)
Off-Cut Orientation C/A off-cut
Off-Cut Angle 4 degree
Diameter 2 inch (50.8 mm)
Thickness 430 +/- 25 um
Primary Flat 16 mm
Polishing Single-Side Polished
Front-Side Roughness Epi-ready, Ra <0.3 nm
Back-Side Roughness Fine ground, Ra <1.2 um
TTV <10 um
BOW <15 um
WARP <15 um
Package 1 piece/set
Off-Cut Details: Select C/A off-cut, 4 degree, 2 inch (50.8 mm) and Single-Side Polished.
Packaging Details: Package 1 piece/set; Package size follows the selected configuration.
Thickness Options: Standard 430 +/- 25 um thickness or any preferred custom thickness.
Ordering Details: Share the selected model, configuration, quantity and any thickness or packaging preference.
PRODUCT SELECTION SUPPORT
For model selection, material matching or specification support, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

What are the front-side and back-side surface roughness specifications for this 2-inch off-cut sapphire substrate?

The front-side is epi-ready with Ra <0.3 nm, and the back-side is fine ground with Ra <1.2 um, as specified in the technical specifications.

What are the TTV, BOW, and WARP tolerances for this off-cut sapphire substrate?

The substrate has a total thickness variation (TTV) of <10 um, bow (BOW) of <15 um, and warp (WARP) of <15 um, ensuring dimensional uniformity for epitaxial deposition.

Can the thickness of this off-cut sapphire substrate be customized?

Yes, the standard thickness is 430 +/- 25 um, but any preferred custom thickness is available upon request, as stated in the product description.

This 2-inch off-cut sapphire substrate offers high-purity monocrystalline Al2O3 with a C/A off-cut of 4 degrees and single-side polished finish, providing epi-ready front-side roughness and tight geometric tolerances suitable for epitaxial growth and device fabrication.

Positive

  • Epi-ready front-side roughness: Front-side Ra <0.3 nm enables direct use for epitaxial thin film deposition without additional surface preparation.
  • Tight flatness and warp control: TTV <10 um, BOW <15 um, and WARP <15 um ensure uniform processing and compatibility with automated wafer handling systems.

Trade-offs

  • Single-side polished finish: Only front side is polished to epi-ready spec; back side is fine ground at Ra <1.2 um, which may require additional polishing for double-sided applications.
  • Fixed 4-degree off-cut angle: The off-cut angle is fixed at 4 degrees; substrates requiring other angles or exact on-axis orientation are not available from this SKU.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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