# Low Expansion Coefficient Glass Borosilicate Glass Wafer

> Low Expansion Coefficient Glass Borosilicate Glass Wafer — a fused silica / quartz wafer: Element Semiconductor. Specs, RFQ checklist and custom sizes to…

- Page: https://machiningglass.com/products/low-expansion-coefficient-glass-borosilicate-glass-wafer/
- SKU: MG-1CBC38
- Category: Glass & Quartz Wafers > Fused Silica & Quartz Wafers
- Image: https://machiningglass.com/wp-content/uploads/2026/10/Low-Expansion-Coefficient-Glass-Borosilicate-Glass-Wafer.webp
- Updated: 2026-10-24

Product type: Intrinsic Semiconductor. Application: Solar Cell. Model: tk034.

## Overview

Low Expansion Coefficient Glass Borosilicate Glass Wafer: a fused silica / quartz wafer made from Element Semiconductor. Temperature 550degree C. Typical applications: Solar Cell. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.

## Specifications

| Parameter | Value |
| --- | --- |
| Material | Element Semiconductor |
| Type | Intrinsic Semiconductor |
| Parallelism | 0.01mm |
| Application | Solar Cell |
| Model NO. | tk034 |
| Thickness 1 | 0.1mm 0.2mm 0.3mm 0.4mm |
| Thickess 2 | 0.5mm 0.7mm 1.1mm |
| Temperature | 550degree C |
| Surface Clearning | 60/40 |
| Surface Roughness | 1nm |
| Manufacturing Technology | Optoelectronic Semiconductor |
| Signal Processing | Analog Digital Composite and Function |
| Model | ST |
| Batch Number | 2010+ |
| Supplier | Xinyu Xu Tking Glass Co., Ltd. |

## What to specify when you request a quote

- **Diameter and flat / notch** — state diameter, flat or notch and their tolerances.
- **Thickness and TTV** — listed as “0.1mm 0.2mm 0.3mm 0.4mm”; give thickness, its tolerance and total thickness variation.
- **Polish and roughness** — listed as “60/40”; specify single- or double-side polish and roughness.
- **Flatness, bow and warp** — quote flatness, bow and warp limits.
- **Material grade** — listed as “Element Semiconductor”; name the grade (JGS1/JGS2, Borofloat 33, alkali-free, sapphire orientation).

## Engineering guides for this part

For material grades and coating options, see [Fused Silica and Quartz Glass: Selecting Materials for Precision Components](https://machiningglass.com/materials/fused-silica-and-quartz-glass-selecting-materials-for-precision-components/). How parts like this are machined and finished is covered in [Glass Wafer Bonding for Microfluidic and MEMS Applications: Process Overview](https://machiningglass.com/capabilities/glass-wafer-bonding-for-microfluidic-and-mems-applications-process-overview/). For an application example, read [Fused Silica Glass Wafers for Precision Appliance Electronics](https://machiningglass.com/applications/fused-silica-glass-wafers-for-precision-appliance-electronics/). Before sending a drawing, check [Fused Silica Refractive Index: Key to Optical Design Improvement](https://machiningglass.com/resources/fused-silica-refractive-index-key-to-optical-design-improvement/). A related standard product is [Fused Silica Glass Wafers (2–12", JGS1/JGS2)](https://machiningglass.com/products/fused-silica-glass-wafers-2-12-jgs1-jgs2/).

## FAQ

### What is the Low Expansion Coefficient Glass Borosilicate Glass Wafer made of?

It is listed as Element Semiconductor. Other grades can be quoted if your application needs different transmission, thermal or chemical properties.

### Where is this fused silica / quartz wafer used?

Listed applications: Solar Cell.

### What should I include in a quote request?

Include diameter and flat / notch, thickness and ttv, polish and roughness, flatness, bow and warp and material grade, plus quantity and a drawing if the part is custom.

## Request a quote

Send drawings, tolerances and quantity: https://machiningglass.com/contact/?rfq_product_id=7665#mg-rfq

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Source: Custom Precision Glass Machining — https://machiningglass.com/