NEG OA-10G / OA-11 Alkali-Free Glass

Original Manufacturer Reference · Nippon Electric Glass · Alkali-free display substrate

Product Overview

Overflow-formed alkali-free substrate glass with smooth surfaces and high thermal and dimensional stability for display and thin-film processing.

Typical Applications

TFT, LTPS and IGZO display substrates
Thin-film electronic and sensor structures
High-temperature dimensionally stable substrates

Reference Specifications

The following values are condensed from the supplied manufacturer data sheet. Test conditions are retained where they affect interpretation.

Density	OA-10G: 2.46; OA-11: 2.52 g/cm³
CTE, 30–380°C	OA-10G: 38; OA-11: 37 × 10⁻⁷/°C
Strain point	OA-10G: 650°C; OA-11: 685°C
Young’s modulus	OA-10G: 73 GPa; OA-11: 78 GPa
Poisson’s ratio	0.20 for both grades
Vickers hardness	OA-10G: 600; OA-11: 620
Dielectric constant	OA-10G: 5.3; OA-11: 5.6
Visible transmittance / refractive index	Approximately 92% / 1.52
Nominal sheet thicknesses shown	0.70, 0.50, 0.40 and 0.30 mm; thinner requests down to 30 µm can be discussed

China-Made Alternative Products

Chinese alkali-free substrate options are shortlisted by alkali content, strain point, CTE, thermal shrinkage, gravity sag, sheet size, thickness and surface quality; LTPS/IGZO processes require high-temperature validation.

Recommended matching criteria:

Chinese alkali-free display glass
Large sheet and cut-to-size substrates
High-temperature dimensional validation

Target modelCritical parametersCandidate gradeSample testingBatch qualification

Customization and Processing

Round wafers, square panels, windows and custom outlines
Precision cutting, edge grinding, chamfering and laser processing
Single- or double-side polishing, thinning, cleaning and marking
TTV, warp, roughness, dimensional and optical inspection to agreed criteria

Qualification Note

Important: “Alternative” means a candidate selected for the same application target. It does not mean an automatic drop-in replacement or identical composition. Final acceptance is based on agreed specifications, samples, test reports and process verification.

Request Material Matching

Manufacturer and product names are used only to identify reference materials and technical targets. Semicon Global Tech is an independent supplier and does not claim manufacturer authorization unless explicitly stated. Original-grade data and China-made alternative specifications are presented separately; supply specifications are confirmed by quotation, COA and approved samples.

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