1. SCHOTT Nexterion
Glass Cleaning

2. Substrate Production Overview
Service
Substrate Production Overview
Raw Glass
Production
Laser
Cutting
of the
Sustrates
Ultrasonic
Cleaning
Coating
100%
Automated
QC for
Geometric
Precision
Packing into
Boxes and
Sealing in
Foil Pouches
Functional
QC per
Batch
Delivery to
Customers
Grey-room
conditions
Carried out under Class
100 Clean room Conditions
Highly efficient ultrasonic cleaning for contamination free surface
Coating with state-of-the-art technology for reproducible surfaces
Class 100 clean room conditions from cleaning to packaging for clean surfaces
High flexibility for the most comprehensive product line of coated slides to cover all your microarray applications
Laser-Cutting
An important parameter to ensure particle-free, high-quality substrates is the use of SCHOTT‘s innovative laser-cutting technology, established by SCHOTT Advanced Processing.

3. Three Levels of Cleanliness
Description
Cleaning process
Packaging
External Packaging
Comments
“Uncleaned”
Deionised water in a conventional washing machine with brushes
“Grey” room conditions
Plastic storage boxes
None
Recommended if a thorough cleaning procedure is used prior to further processing
“Ultrasonically cleaned”
Automated ultrasonic cleaning line using multiple wash steps of varying pH’s, rinse steps and final drying stage.
Class 100 clean room
Recommended if a simple cleaning procedure is used prior to further processing
“Clean room cleaned”
Sealed in air-tight laminated foil pouches under inert Argon atmosphere
Glass may be used without any cleaning steps

4. Fully Automatic Ultrasonic Cleaning
SCHOTT glass is cleaned by an automated ultrasonic cleaning line in a series of wash steps using commercial cleaning solutions recommended for optical glass
Highly alkaline cleaner (pH 12.4) containing alkalis, surface active compounds, solubiliser, wetting agents, complexing agent, sequestering agents
Mildly acidic (pH 4.3) containing acids, wetting agents, surfactant compounds, buffer compounds
Rinse steps in deionised water
Final infra-red drying stage

5. SCHOTT Nexterion Microarray Solutions