Semicon Global Tech
Glass Wafers

Semiconductor Materials

Original Glass Grades & China-Made Alternatives
Glass Wafers
Manufacturer model data provides the technical benchmark. Semicon Global Tech can supply selected original grades and propose China-made alternatives in wafer, panel, sheet or finished-component form.
How to use this catalogue: choose the reference model that matches your application, review its key parameters, then ask us to quote either the specified original material or a Chinese candidate matched to the critical requirements.

Existing Glass Wafer Supply

Glass Wafer Overview
BF33 glass is a high-quality borosilicate glass. It has a suitable thermal expansion coefficient, excellent surface flatness, transparency and other material properties, as well as good optical performance. These properties match the special requirements of high-speed laser debonding processes. In wafer thinning processes, BF33 glass wafers can be used for anodic bonding or as carrier wafers.
Glass Wafer Specifications
Semicon Global Tech provides 4-inch and 6-inch BF33 glass wafers and related customized specifications.
Case Studies

Original manufacturer reference models

Corning · Borosilicate / MEMS

Corning PYREX® Micro-Electro Glass

Fusion-formed borosilicate glass with an optical-quality surface, low thickness variation and thermal expansion compatible with silicon-based MEMS packaging.

CTE 3.43TTV ≤1 µm availableMEMS bonding
View specifications and alternatives →
Corning · Alkali-free display substrate

Corning EAGLE XG® Glass

Fusion-formed alkaline-earth boro-aluminosilicate substrate glass designed for flat-panel display and thin-film processing.

Alkali-freeCTE 3.17Large format
View specifications and alternatives →
Corning · Chemically strengthened cover glass

Corning® Gorilla® Glass 3

Ion-exchange strengthened cover glass developed for damage resistance, scratch resistance and retained strength in touch and portable-device applications.

0.4–2.0 mmCS ≥950 MPaCover glass
View specifications and alternatives →
Corning · Chemically strengthened cover glass

Corning® Gorilla® Glass 4

Thin protective cover glass focused on damage resistance, retained strength and improved drop performance after ion exchange.

0.4–1.0 mmCS >850 MPaDrop resistance
View specifications and alternatives →
Corning · Low-CTE semiconductor glass

Corning SG 3.4 Semiconductor Glass

Ultra-flat optical-grade semiconductor glass supplied as wafers or large panels, with a nominal CTE of 3.4 × 10⁻⁶/°C.

CTE 3.4100–300 mmWafer / panel
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Corning · Semiconductor glass

Corning SG 7.8 Semiconductor Glass

Ultra-flat optical-grade semiconductor glass with a nominal CTE of 7.8 × 10⁻⁶/°C, available in wafer and panel formats.

CTE 7.8100–300 mmOptical grade
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SCHOTT · Strengthenable ultra-thin glass

SCHOTT AS 87 eco Ultra-Thin Glass

Aluminosilicate ultra-thin glass suitable for ion-exchange strengthening and applications requiring impact, bending and scratch resistance.

70–350 µmRa ≤0.5 nmStrengthenable
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SCHOTT · Optical crown glass

SCHOTT B 270® i Glass

Clear optical crown glass with high visible transmission, established optical constants and broad use in optical and technical components.

nD 1.5229Visible transmissionOptical glass
View specifications and alternatives →
SCHOTT · Thin borosilicate glass

SCHOTT D 263® T eco Glass

Clear, chemically durable borosilicate thin glass supplied in stock sheets and customizable substrate formats.

0.05–1.1 mmCTE 7.2Thin glass
View specifications and alternatives →
SCHOTT · High-strength cover glass

SCHOTT Xensation® Core Cover Glass

Chemically strengthen-able cover glass engineered for drop and scratch resistance in premium device applications.

CS >900 MPaDoCL >180 µmCover glass
View specifications and alternatives →
SCHOTT · LABS cover glass

SCHOTT Xensation® α Cover Glass

Lithium-alumino-borosilicate cover glass developed for enhanced rough-surface drop and scratch performance after chemical strengthening.

LABSDoCL >180 µmDrop performance
View specifications and alternatives →
Nippon Electric Glass · Alkali-free display substrate

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

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

Alkali-freeStrain ≤685°CLTPS / IGZO
View specifications and alternatives →
SCHOTT · Borosilicate

SCHOTT BOROFLOAT® 33 (BF33)

Existing glass-wafer supply option for MEMS, anodic bonding and carrier-wafer applications. Detailed original-grade data will be added after the corresponding manufacturer sheet is approved.

4 / 6 inch supplyBorosilicate
Request BF33 specification →

Application-based material families

Application familyReference modelsKey selection criteria
Low-CTE MEMS / packagingPYREX Micro-Electro, SG 3.4 and BF33-type targetsCTE, anodic bonding, TTV, warp, surface finish
Display / thin-film substrateEAGLE XG and NEG OA-10G / OA-11Alkali content, strain point, thermal shrinkage, sheet size
Strengthened cover glassGorilla Glass 3/4, AS 87 eco, Xensation Core / αIon exchange, CS/DoCL, thickness, scratch and drop tests
Thin / optical technical glassD 263 T eco and B 270 iTransmission, refractive index, CTE, chemical durability, thickness
Core supply capability

China-Made Glass Alternatives

We do not relabel Chinese material as an original brand. We select a Chinese glass grade against the customer’s application and the critical reference parameters: composition family, CTE, optical band, refractive index, alkali content, thermal point, strengthening response, thickness, TTV, warp and surface finish.

Potential alternatives can be supplied as raw sheets, round wafers, square panels or processed components.

Processing and inspection

  • 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
Reference grade
Requirements matrix
Chinese candidate
Sample & test
Approved supply
Qualification principle: matching a few nominal values is not enough. Bonding, coating, thermal cycling, chemical strengthening and device-level reliability must be checked when they are part of the customer process.

Tell us the target glass model and process

We can prepare an original-grade quotation, a Chinese-alternative proposal, or a side-by-side qualification matrix.

Start a material inquiry

All trademarks belong to their respective owners and are used for material identification and comparison. Alternative products are independently sourced and are not represented as products of the original manufacturer.

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