5" Photomask Blank
GB £48.05
Chrome Low Reflective OD3 Chrome
5" x 5" Soda Lime Glass
AZ1518 resist @ 5300A
Availability:
In stock
SKU
PMB-CMP46
- Buy 40 for GB £38.44 each and save 20%
- Buy 60 for GB £33.64 each and save 30%
5" Photomask Blank is available to buy in increments of 10
Photomask blanks are precision-manufactured substrates designed for use in photolithography, direct-write laser systems, and other high-accuracy imaging applications. Each blank is fabricated from high-grade soda lime glass, lapped and polished to ensure low surface roughness and high flatness across the imaging area. This provides the optical clarity and dimensional stability required for consistent pattern transfer and resist processing.
The blanks are coated with a low reflective OD3 chrome layer, optimised to reduce glare and enhance contrast during exposure. This chrome coating offers excellent adhesion, durability, and edge acuity under standard photolithographic conditions. A spin-coated layer of AZ1518 positive photoresist is applied to a thickness of 5300 Å, providing compatibility with i-line (365 nm) lithography and enabling precise feature resolution for a wide range of applications.
Standard blanks are available in a small range of sizes and are supplied in cleanroom-compatible packaging. Stock items can be ordered in full or half box quantities, depending on availability. For specialised requirements, custom substrates, chrome types, and photoresist combinations can be manufactured to order. These options include alternative glass types such as borofloat, quartz, or B270, as well as different resist materials and thicknesses. Custom orders are subject to extended lead times.
All blanks are handled and packaged in a controlled environment to minimise contamination and ensure readiness for direct processing or further cleanroom handling.
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| FAQ | FAQ's
Q: Can i buy just one ? A: Sorry, packaging requirements means that we can only sell the plates in larger quantities of either a full, or half , box.
Q: Can i order anytime from stock ? A: Because these are low volume products from our production process, they may not always be available. Please enquire first if your need is urgent.
Q: What is the photoresist coated on the blank?
Q: What is the chrome coating specification?
Q: Can you supply different glass types?
Q: Are the blanks cleaned before shipment?
Q: Can I request a different resist or thickness? |
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Material Specifications
General
FAQ's
Q: Can i buy just one ?
A: Sorry, packaging requirements means that we can only sell the plates in larger quantities of either a full, or half , box.
Q: Can i order anytime from stock ?
A: Because these are low volume products from our production process, they may not always be available. Please enquire first if your need is urgent.
Q: What is the photoresist coated on the blank?
A: The standard coating is AZ1518 positive photoresist, spin-coated to a thickness of 5300 Å. This resist is suitable for i-line (365 nm) exposure and standard wet processing.
Q: What is the chrome coating specification?
A: The chrome layer is a low reflective OD3 coating, designed to minimise glare and enhance contrast. It provides excellent adhesion and resolution performance in typical lithographic conditions.
Q: Can you supply different glass types?
A: Yes. While standard blanks use soda lime glass, we also offer custom fabrication using borofloat, quartz, B270, and other optical substrates. Lead times will apply for non-standard materials.
Q: Are the blanks cleaned before shipment?
A: Yes, all blanks are cleaned and packaged in a cleanroom environment to ensure low contamination levels and readiness for imaging or further processing.
Q: Can I request a different resist or thickness?
A: Alternative resists and coating thicknesses are available on request. These are custom made to order and may involve additional lead time.