Merck AZ 5230 Photoresist

Features Of Merck AZ 5230 Photoresist

1. High-resolution positive-tone photoresist optimized for UV lithography at g-line (436 nm) and i-line (365 nm) wavelengths.

2. Excellent thermal stability and post-exposure bake (PEB) latitude, enabling robust process control in microfabrication.

3. Superior adhesion to silicon, silicon dioxide, and metal substrates without requiring additional adhesion promoters.

4. Low outgassing profile suitable for vacuum-compatible processes including electron-beam and deep-UV applications.

5. Consistent film-forming properties with low defect density and high uniformity across 100–200 mm wafers.

Typical Applications Of Merck AZ 5230 Photoresist

1. Semiconductor device fabrication, including gate-level patterning for CMOS and analog ICs.

2. Microelectromechanical systems (MEMS) processing requiring high-aspect-ratio etch resistance.

3. Advanced packaging applications such as redistribution layer (RDL) and fan-out wafer-level packaging (FOWLP).

4. Photomask manufacturing for mask shop and R&D environments.

5. Research and development of nanoscale pattern transfer in academic and industrial cleanroom labs.

Specifications Of Merck AZ 5230 Photoresist

Compatible Systems Of Merck AZ 5230 Photoresist

Merck AZ 5230 Photoresist – Frequently Asked Questions (FAQ)

Q1: What is the CAS Registry Number for Merck AZ 5230 Photoresist?

A: AZ 5230 is a proprietary formulation; individual components are disclosed under Merck’s confidential substance inventory. Full CAS assignment is not published per regulatory guidance for complex mixtures — safety data is provided via SDS (Document No. AZ5230-SDS-EN).

Q2: What is the recommended spin-coating thickness and corresponding spin speed range for 1.5 µm films?

A: For 1.5 µm final thickness (after soft bake), spin at 3000–3500 rpm for 30 seconds on standard silicon wafers; actual speed depends on substrate size, temperature, and ambient humidity — refer to Merck’s Process Optimization Guide AZ5230-POG-EN for wafer-specific calibrations.

Q3: How does AZ 5230 compare to AZ 5214E in terms of resolution and etch resistance?

A: AZ 5230 offers higher resolution (≤0.8 µm vs. ~1.2 µm for AZ 5214E) and improved plasma etch resistance due to higher novolac molecular weight and optimized DNQ loading; however, AZ 5214E retains superior lift-off capability — selection depends on process sequence requirements.

Q4: Are there any known extractables or leachables from AZ 5230 that could affect downstream analytical assays?

A: When fully processed (soft-baked, exposed, PEB’d, and developed), residual extractables are below detection limits (<0.1 ppm) in aqueous and organic simulants per ISO 10993-12 testing. Unprocessed resist films may release trace solvents — always complete full thermal cure before assay contact.

Q5: Does AZ 5230 comply with USP <87> and <88> for biocompatibility testing in medical device applications?

A: AZ 5230 is not intended for direct patient contact or implantable device use. While it meets ISO 10993-5 (cytotoxicity) and ISO 10993-10 (irritation/sensitization) when fully cured, it is not certified to USP <87>/<88>; alternative biocompatible resists (e.g., AZ ECI series) are recommended for regulated medical device lithography.