Gold-Coated Substrate 6 Inch Cr 30 nm/Au 100 nm ATOMFAIR®

$315.00

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.

6 inch double-sided gold-coated substrate with Cr 30 nm/Au 100 nm, Ra < 1 nm and ≥99.999% film purity on silicon, glass, quartz or sapphire substrates.

6 Inch Double-Sided Coating Gold-Coated Substrate

Product Type: Gold-coated substrate

Research-grade laboratory product

Product Overview

6 inch double-sided coating gold-coated substrate is listed with a Cr 30 nm / Au 100 nm film stack. The substrate can be silicon, glass, quartz or sapphire.

The coating specification includes Ra < 1 nm roughness and a listed film purity of at least 99.999%. Electron-beam evaporation and magnetron sputtering are available processing routes.

Performance Features

Double-Sided Coating configuration
Cr 30 nm / Au 100 nm film stack listed
Silicon, glass, quartz and sapphire substrate types listed
Electron-beam evaporation and magnetron sputtering listed

Technical Specifications

Parameter	Specification / Available Values
Atomfair Model	AF-GAU-6IN-D
Size	6 inch
Coating Sides	Double-Sided Coating
Film Stack	Cr 30 nm / Au 100 nm; customizable
Substrate Types	Silicon wafer, glass, quartz or sapphire
Substrate Dimensions	Size, specification and thickness can be customized
Film Roughness	Ra < 1 nm
Film Purity	≥ 99.999%
Coating Processes	Electron-beam evaporation or magnetron sputtering

Quotation Confirmation

6 inch size, double-sided coating, Cr 30 nm / Au 100 nm film stack, substrate type, substrate thickness and coating process should be confirmed before quotation. Custom dimensions and specifications should be included in the request.

MODEL AND SPECIFICATION CONFIRMATION: Confirm the selected size, material system and configuration before quotation.

COMPATIBILITY CONFIRMATION: Confirm the substrate, surface treatment and intended integration requirements for the selected item.

QUANTITY CONFIRMATION: Include the required specification and quantity when requesting quotation support.

LABORATORY PROCUREMENT SUPPORT

For model selection, substrate matching or configuration confirmation, contact our technical sales team.

E-MAIL: inquiry@atomfair.com

Supplier: Atomfair

Brand: ATOMFAIR®

What is the role of the chromium adhesion layer in the Au film stack on this gold-coated substrate?

The Cr 30 nm layer acts as an adhesion promoter between the substrate and the Au 100 nm layer, preventing delamination and ensuring long-term film stability. This specific film stack is a standard architecture for enhancing gold adhesion to substrates such as silicon, glass, quartz, or sapphire.

Which substrate material should be selected for high-temperature or high-vacuum applications?

For high-temperature and high-vacuum environments, quartz or sapphire are preferred due to their low outgassing and thermal stability. The product offers substrate options including silicon, glass, quartz, and sapphire, with customization available for thickness and dimensions.

What surface roughness specification is guaranteed and why is it critical for this gold-coated substrate?

The product guarantees a surface roughness of Ra < 1 nm, which is critical for minimizing scattering losses in optical and plasmonic devices. This specification, combined with a film purity of ≥ 99.999%, ensures high reflectivity and low defect density for demanding research applications.

Assessment

This 6-inch double-sided gold-coated substrate with a Cr 30 nm / Au 100 nm film stack is evaluated for its ultra-smooth (Ra < 1 nm) and high-purity (≥99.999%) coating, suitable for precision optical and electronic applications, though users must confirm substrate type, thickness, and coating process prior to quotation.

Positive

Ultra-smooth and high-purity coating: The film roughness is specified as Ra < 1 nm with a purity of ≥99.999%, providing a high-quality surface for demanding applications such as reflectometry or plasmonics.
Flexible substrate and process options: Supports silicon wafer, glass, quartz, or sapphire substrates, with electron-beam evaporation or magnetron sputtering as available coating routes, enabling adaptation to different experimental requirements.

Trade-offs

Custom configuration requires pre-order confirmation: Substrate type, thickness, and coating process must be confirmed before quotation, introducing lead time and requiring detailed specification input from the buyer.
Limited to single film stack specification: The listed Cr 30 nm / Au 100 nm stack is fixed unless customized, and the double-sided coating adds complexity for handling in processes requiring single-sided access only.

Quality Standards & Performance Verification

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.

Shipping & Returns

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).