Anti-Reflectants & Functional Sublayers
Addressing Advanced Lithography Challenges
DuPont’s complete line of anti-reflectant coatings and functional sublayer products include bottom anti-reflective coatings (BARCs), silicon anti-reflective coatings (SiARCs), and spin-on-carbons (SOCs). They are formulated to address advanced lithography challenges posed by the critical dimensions of today’s advanced technology nodes and 3D structures, improving throughput and enabling higher resolution to 20nm line pitches.
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What are Anti-Reflectants and Functional Sublayers?
Anti-reflective coatings and sublayers – BARCs and SiARCs, and SOCs – are used to boost the effectiveness of lithography by widening and improving the process and reflectivity windows:
- BARCs reduce reflective light during the exposure step, improving the reflectivity control of the resist. They also prevent substrate damage caused by wet processes.
- SiARC materials functions under the resist to control optical imaging while also acting as an etch barrier to manage the etch pattern.
- SOCs act as planarizing material. They create a high carbon layer that helps control etch properties.
Lithography Materials and Services
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Anti-Reflectants & Functional Sublayers
Anti-Reflectants & Functional Sublayers
Anti-reflective coatings and sublayers boost the effectiveness of lithography by widening and improving the process and reflectivity windows.
An organic gap filling material for extremely narrow trenchesA family of cross-linkable BARCs that can etch 30% faster than photoresists -
Advanced Overcoats
Advanced Overcoats
Used in conjunction with photoresists, DuPont’s advanced overcoat materials are designed to prevent defects and improve the lithography process window, enabling finer feature patterns.
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Photoresists
Photoresists
DuPont’s robust, production-proven photoresist product line offers materials options that meet the requirements across generations of lithography processes.
Positive tone ArF (193 nm) dry photoresists optimized for trench and line/space applicationsPositive tone 193 nm immersion resists with an excellent process window, CD uniformity and low defectivityPositive tone 193 nm implant resists with good profile through pitch and excellent substrate compatibility -
Ancillary Lithography Materials
Ancillary Lithography Materials
DuPont’s roots run deep in its production-proven line of ancillary lithography products. From developers, removers, and other enhancement chemistries, we support a total lithography solution.
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Electronic Grade Polymers | DuPont Electronic Solutions
Electronic Grade Polymers | DuPont Electronic Solutions
DUV and 193nm photoresist performance begins with the polymer, and DuPont electronic grade polymers continue to improve upon existing techniques for polymer manufacture, isolation, and evaluation.
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Metrology & Imaging Services
Metrology & Imaging Services
We offer services such as defect testing or patterning wafers
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