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Why Biocompatible Ultra-Thin Glass (0.37 mm ISO 10993) Is the Default.

Signal integrity

Green-light PPG LEDs sit < 0.5 mm from skin; the 0.37 mm biocompatible ultra-thin glasswindow shortens the optical path and boosts SNR.

Skin safety

ISO 10993-certified, AF / Parylene-C coated; safe for 24 × 7 wear.

Mechanical strength

Ion-exchanged to > 800 MPa; survives 1 m drops.

Design freedom

CNC + 2.5 D hot bending enables ± 0.02 mm tolerances for any PPG sensor window.

ultra-thin glass

Use Cases in Wearable Medical Devices

Smart-watch health monitor

Ultra-thin bioglass protects PPG sensor window.

CGM patch

25 mm tear-drop glass lens, < 1 mm total height.

Rehab brace

0.3 mm UTG display for motion analytics, sweat-proof.

Building a PPG Sensor Window for Wearable Medical Devices

Base Glass

Corning® Willow® / AGC Xensation® UTG .

We start with biocompatible ultra-thin glass—0.3 mm Corning® Willow® or AGC Xensation® UTG—delivering ISO 10993 skin safety and drop resistance.

Coating Stack

Dual AR/AF + nano Parylene-C.

Dual AR/AF plus a nano-scale Parylene-C barrier keep the ISO 10993 thin glass window clear, oil-free and sweat-proof for 24 × 7 wear.

Vacuum Bond

Airtight IP68, + 88 % outdoor contrast.

UV-cured OCA creates an IP68 seal and boosts outdoor contrast by 88 %, locking the bio-compatible UTG to the sensor PCB without bubbles.

Smart Electrodes

ITO / Ag-mesh extends ECG pickup.

Printed ITO / Ag-mesh on the rear side extends ECG pickup across the medical-grade ultra-thin glass with < 10 Ω/□ sheet resistance.

EU Compliance

Full ISO 10993 & REACH files

Every window ships with ISO 10993 biocompatibility data, REACH substance reports and CE-ready risk files—accelerating regulatory sign-off.

Fast-Track Your Sensor Window

Need biocompatible ultra-thin glass that sails through CE testing and mass production? Our end-to-end workflow puts you weeks ahead.

CGM UTG

SRE’s Ultra-Thin Glass EU Compliance Fast

SRE condenses every EU hurdle—regulatory, chemical, durability, optical and scale-up—into a single fast-track workflow for ultra-thin glass wearables. From ISO 13485 cleanrooms to traceable barcodes, we supply fully CE-ready sensor windows in weeks, not months.

Regulatory Ready

Our ISO 13485 facilities generate MDR IIa/IIb tech-files, complete ISO 10993 biocompatibility and an ISO 14971 risk matrix—cutting your CE review by up to six weeks.

Eco Chemistry

Lead-free Gorilla®/Xensation® glass and halogen-free OCA ship with IEC 63000 substance reports and WEEE recycling marks, ensuring hassle-free REACH / RoHS clearance.

Rugged Reliability

Vacuum-laminated OCA, Parylene-C nano-coating and 0.1 mm chamfers sail through IP68 and IEC 60601-1-11 tests—first-pass drop and rain certification, every batch.

Optical Clarity

Dual AR/AF coatings deliver > 92 % green-band transmission; TracePro simulations document a proven 20 % SNR boost for PPG sensor windows under full sunlight.

Agile Scaling

Twin MES-linked plants barcode every glass lot; MOQ starts at 200 units, with 15-day prototypes—so clinical pilots pivot seamlessly into mass production.

Workflow:

  • Design Kick-Off

    Upload your 2D/3D drawings and requirements—within 48 hours our engineers return a risk-scoped feedback report, outlining tolerances, stack-up options, and CE impact for the biocompatible ultra-thin glass window.

  • Material Stack

    We lock in a five-layer stack—0.37 mm AGC Xensation® medical-grade ultra-thin glass, dual AR/AF, nano Parylene-C, UV OCA and ITO mesh—then run full optical & thermal simulations to guarantee performance before cutting a single sheet.

  • Rugged Prototype

    SRE builds a pilot batch, performs IP68 immersion, IEC 60601-1 drop and sweat aging tests. Certified results prove the bio-compatible UTG can survive real-world wear, and DHL delivers samples to the EU in 15–20 days.

  • Scale-Ready Run

    Your ERP links directly to our MES barcodes; mass lots ship with a draft CE tech-file, ISO 10993 data and REACH/ROHS reports—turning biocompatible ultra-thin glass sensor windows into fully traceable, market-ready products.

Why SRE Delivers EU-Ready Biocompatible Ultra-Thin Glass

Even without regulatory expertise, you can launch compliant products fast—SRE handles the biocompatible ultra-thin glass, you win the market.