Custom ITO Conductive Glass Substrates (0.1mm to 10mm Thickness)

Ultra-Broad Thickness Spectrum (0.1mm – 10mm) | Tunable Sheet Resistance (3 – 100+ Ohm/sq) | Visible Transmittance >= 84% – 88% | Custom Geometries, CNC Machining & Precision Laser Etching

1. Product Overview & Engineering Value

Our Custom Indium Tin Oxide (ITO) Coated Conductive Glass Substrates combine ultra-high visible light transparency with exceptional electrical conductivity and surface homogeneity. By employing advanced magnetron sputtering deposition, a nano-scale, defect-free ITO thin film is uniformly coated onto optical-grade glass substrates.

We provide industry-leading thickness customization from 0.1mm ultra-thin flexible/wafer sheets up to 10.0mm high-strength rigid panels, with full support for custom 2D/3D CAD geometries (circles, strips, custom stepped rabbets, and through-hole drillings).

Whether you are developing next-generation Perovskite/Organic Solar Cells (PSCs/OPVs), Micro-OLED/QLED displays, electrochromic smart windows, electrochemical biosensors, transparent heating panels, or high-energy optical filters, our factory provides turnkey OEM/ODM solutions from single prototype pieces to high-volume commercial production.

2. Core Advantages & Technical Strengths

Extreme Thickness Flexibility (0.1mm – 10mm): Full capability ranging from ultra-thin optical sheets (0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.55mm, 0.7mm, 1.1mm) to thick structural glass plates (1.8mm, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, up to 10mm).

Tunable Electrical Resistance: Sputtered sheet resistance precisely calibrated to your circuit requirements: 3-5 Ohm/sq, 5-10 Ohm/sq, 10-20 Ohm/sq, 30-50 Ohm/sq, 50-100 Ohm/sq, and up to 300+ Ohm/sq.

High Optical Transmittance & Low Haze: Peak visible transmittance of >= 84% to 88% (at 550nm) with minimal optical absorption and low refractive index mismatch.

Substrate Material Diversity: Available on Soda-Lime float glass, High-Purity Ultra-Clear (Low-Iron) glass, Borosilicate 3.3 (heat-resistant), Aluminosilicate (chemically toughened), and Optical Quartz (Fused Silica).

Microscopic Surface Flatness: Smooth surface roughness (Ra < 1.0 nm to 1.5 nm), eliminating short circuits during atomic/molecular-level spin-coating and vacuum evaporation.

Precision Secondary Processing: High-resolution laser scribing/photolithography etching (line width/space down to 10-20 um), screen-printed silver busbars, lead wire soldering, ultrasonic drilling, and 2.5D round-edge polishing.

3. Comprehensive Technical Specifications Table

Parameter / Feature	Engineering Capability & Specifications
Product Name	Custom ITO Conductive Glass Substrates / ITO Coated Glass Sheets
Thickness Range	0.1mm to 10.0mm (0.1, 0.2, 0.3, 0.4, 0.55, 0.7, 1.1, 1.8, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0 mm)
Substrate Materials	• Optical Soda-Lime Glass   • Ultra-Clear Low-Iron Float Glass   • High Borosilicate 3.3 Glass (Thermal shock resistant)   • Aluminosilicate / AGC Dragontrail / Corning Gorilla Glass   • Optical Fused Quartz / Fused Silica Glass (JGS1 / JGS2)
Sheet Resistance Options	• 3 – 5 Ohm/sq: Ultra-low resistance for high-current electrodes & fast transparent heaters   • 5 – 10 Ohm/sq: Standard laboratory grade for high-efficiency Perovskite / OLED   • 10 – 20 Ohm/sq: General research, electrochemistry & sensor platforms   • 30 – 50 Ohm/sq / 50 – 100 Ohm/sq: High-voltage devices, touch panels & smart windows   • 100 – 300+ Ohm/sq: High-transparency liquid crystal / ESD dissipation
Optical Transmittance	>= 84% – 88% (@ 550 nm, bare ITO coated substrate)
Surface Roughness (Ra)	Ra < 1.0 nm – 1.5 nm (AFM verified for ultra-thin active layer spin-coating)
Dimensional Limits	Min: 3 mm x 3 mm | Max: 1200 mm x 1000 mm (Large-format mother glass)
Machining Tolerance	+/- 0.05 mm to +/- 0.1 mm (Precision CNC milling, laser cutting, diamond dicing)
Thermal Stability	• Soda-Lime: Up to 300°C   • Borosilicate 3.3: Up to 450°C – 500°C   • Quartz Glass: Up to 1000°C
Patterning & Etching	• Laser Scribing (P1, P2, P3 lines)   • Wet Chemical Acid Etching / Photolithography (Resolution >= 15 um)
Electrode & Contact Options	Screen-printed high-temp Silver Paste Busbars, conductive copper tape, soldered Teflon/Silicone wires
Edge & Corner Processing	Safety arris edge, flat polished edge, 2.5D round bevel, step-edge (rabbet), waterjet through-holes
Strengthening Options	Chemical Ion-Exchange Toughening (for <= 2.0mm) / Physical Thermal Tempering (for >= 3.0mm)

4. Turnkey Customization Capabilities (OEM / ODM)

[ Raw Glass Selection ] ──> [ Precision CNC / Scribing ] ──> [ Sputtered ITO Coating ] ──> [ Laser / Acid Patterning ] ──> [ Electrodes & Testing ] (0.1mm to 10.0mm Base)        (Custom Shapes & Holes)          (3-5 to 100+ Ohm/sq)          (Custom Circuit Pattern)       (Silver Busbars & Leads)

Ultra-Thin & Heavy-Duty Thickness Slicing:

Ultra-Thin (0.1mm – 0.55mm): Ideal for lightweight wearable devices, microfluidic optical covers, flexible optoelectronics, and weight-sensitive aerospace optics.

Standard (0.7mm – 1.1mm): The global standard for university laboratory spin-coating, OLED/QLED fabrication, and solar cell R&D.

Thick & Heavy-Duty (2.0mm – 10.0mm): High mechanical impact resistance for outdoor touch monitors, architectural smart windows, marine viewports, and high-pressure electrochemical reaction cells.

Custom Geometries & Edge Profiling:

Full CNC cutting and diamond-wheel grinding for squares, rectangles, circular discs, stepped rabbeted borders, and custom polygon shapes per CAD (DWG, DXF, STEP) drawings.

High-Resolution Patterning & Laser Scribing:

Selective ITO film removal via UV/Fiber laser etching or photolithography chemical etching to form isolated electrode channels, interdigitated finger electrodes, and multi-pixel display matrices with zero substrate damage.

Silver Busbars & Pre-Soldered Leads:

Precision screen printing of high-conductivity silver busbars along the edges for uniform current injection, complete with pre-soldered lead wires or copper foil contacts for rapid plug-and-play assembly.

5. Typical Applications & Industry Solutions

Perovskite & Organic Photovoltaics (PSCs / OPVs / DSSCs): Serves as high-efficiency transparent conductive anodes for spin-coating and slot-die coating of electron/hole transport layers.

Display Technologies (OLED / QLED / Micro-LED / E-Paper): Transparent pixel electrodes and driving backplanes providing high carrier mobility and pristine optical clarity.

Electrochemical & Biosensing Research: Working electrodes for Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), in-situ spectroelectrochemistry, and surface plasmon resonance (SPR).

Transparent Heaters & Defogging Windows: Fast Joule-heating elements for 3D printer heated glass beds, camera surveillance viewports, automotive windshield demisting, and outdoor LiDAR sensor deicing.

Electrochromic Smart Windows & Optical Shutters: Variable light-transmittance glass panels for architectural glazing, privacy partitions, and automotive sunroofs.

EMI / RFI Shielding Optical Filters: Protects military, aerospace, and medical monitoring displays from high-frequency electromagnetic interference without sacrificing display visibility.

Microfluidic & Lab-on-a-Chip Devices: Ultra-thin transparent conductive covers integrating electrophoresis, cell manipulation, and microscopic heating stages.

6. Frequently Asked Questions (FAQ)

Q1: What is the difference between ITO glass and regular conductive glass?

A: ITO (Indium Tin Oxide) glass is the industry gold standard for transparent conductive oxide (TCO) glass. Compared to alternatives like FTO (Fluorine-doped Tin Oxide) or AZO, ITO offers significantly lower surface roughness (Ra < 1.0–1.5 nm) and higher visible light transmittance at low sheet resistances (e.g. 5–10 Ohm/sq), making it ideal for thin-film spin-coating where surface spikes could cause electrical shorting.

Q2: How do I select the right sheet resistance (Ohm/sq) for my application?

A:

3–5 Ohm/sq or 5–10 Ohm/sq: Recommended for high-efficiency solar cells, large-area OLEDs, and low-voltage transparent heating plates where minimal series resistance and high current carrying are critical.

10–20 Ohm/sq: The most universal and cost-effective specification for general university laboratory research, electrochemical experiments, and biosensing.

30–100+ Ohm/sq: Recommended for touch screens, capacitive sensor arrays, electrochromic smart glass, and high-voltage defogging elements.

Q3: Can you manufacture ITO glass in extreme thicknesses like 0.1mm or 8mm–10mm?

A: Yes. We have specialized precision thinning and polishing lines for ultra-thin glass (0.1mm, 0.2mm, 0.3mm), as well as large magnetron sputtering coaters capable of processing thick architectural and industrial glass slabs up to 10.0mm with fully customized dimensional tolerances.

Q4: What substrate material should I choose for high-temperature processes?

A:

Standard Soda-Lime Glass: Suitable for temperatures up to 300°C.

High Borosilicate 3.3 Glass: Suitable for operating temperatures up to 450°C–500°C with high resistance to thermal shock.

Fused Quartz / Synthetic Silica: Suitable for extreme thermal environments up to 1000°C and deep-UV optical transmission.

Q5: Can you etch custom conductive patterns or circuits onto the ITO glass?

A: Yes. We offer precision laser scribing and photolithographic wet acid etching. You can provide CAD drawings (DXF/DWG) detailing your electrode layout, isolated conductive tracks, or interdigitated patterns, and we will achieve clean etching gaps with tolerances down to +/- 10 um.

Q6: How can I distinguish the conductive (ITO coated) side from the non-conductive side?

A: Set a digital multimeter to the resistance mode (Ohms). Touch the two probes onto the glass surface approximately 1 cm apart:

If the multimeter displays a stable low resistance reading (e.g., 5–100 Ohms), that side is the ITO conductive coated side.

If the multimeter displays “OL” / open circuit, that side is the bare glass non-conductive side.

Q7: What details do you need to provide an accurate quotation?

A: Please provide:

Dimensions (Length x Width or CAD drawing).

Glass Thickness (from 0.1mm to 10.0mm).

Target Sheet Resistance (e.g., 5-10 Ohm/sq, 10-20 Ohm/sq).

Substrate Base Material (Soda-Lime, Borosilicate, Quartz, Low-Iron, etc.).

Secondary Processing (Laser etching, Silver busbars, Soldered wires, Tempering, CNC edge polishing).

Target Order Quantity (Prototype sampling or batch volume).

7. Cleanroom Packaging & Export Quality Assurance

Class 1000 Cleanroom Decontamination: All substrates undergo multi-stage ultrasonic deionized water cleaning and hot air drying in ISO Class 1000 dust-free environments.

Specialized Substrate Cassettes: Ultra-thin and laboratory-format chips (0.1mm – 1.1mm) are securely positioned in dust-proof slotted substrate cassettes or individual vacuum carrier boxes to eliminate surface friction and edge micro-chipping.

Dual-Surface Protective Film & Interleaving: Large-format and thick glass panels (2.0mm – 10.0mm) are laminated with anti-static protective PE film or interleaved with acid-free lens paper.

Heavy-Duty Export Crating: Sealed inside vacuum moisture-proof barrier foil, reinforced with high-density shock-absorbing EPE foam, and packed into drop-tested export cartons and wooden crates for 100% damage-free delivery worldwide.