RZJ-2500E Photoresist

Features Of RZJ-2500E Photoresist

1. High-resolution patterning capability with sub-micron resolution (≤ 0.8 µm) under standard i-line (365 nm) exposure.

2. Excellent thermal stability up to 130 °C post-bake, minimizing pattern deformation during downstream processing.

3. Optimized adhesion to silicon, SiO₂, and metal substrates (e.g., Al, TiN) without requiring additional adhesion promoters.

4. Low outgassing profile compatible with vacuum-based etch and deposition tools, reducing contamination risk.

5. Environmentally conscious formulation with low halogen content and VOC-compliant solvent system (PGMEA-based).

Typical Applications Of RZJ-2500E Photoresist

1. Front-end semiconductor manufacturing for gate and interconnect patterning in CMOS logic devices.

2. MEMS fabrication requiring high aspect-ratio resist profiles and etch resistance in deep reactive ion etching (DRIE).

3. Advanced packaging applications including fan-out wafer-level packaging (FOWLP) redistribution layers (RDL).

4. MicroLED display backplane patterning with precise linewidth control and minimal line-edge roughness (LER < 4.5 nm).

5. Photomask repair and direct-write lithography prototyping on quartz and chrome substrates.

Specifications Of RZJ-2500E Photoresist

Compatible Systems Of RZJ-2500E Photoresist

RZJ-2500E Photoresist – Frequently Asked Questions (FAQ)

Q1: What is the CAS Registry Number for RZJ-2500E Photoresist?

A: RZJ-2500E is a proprietary multi-component formulation; individual CAS numbers are assigned only to key constituents (e.g., DNQ sensitizer: CAS 22926-02-3; novolac resin blend: CAS 9003-35-4). Full compositional disclosure is restricted under trade secret provisions.

Q2: What is the recommended coating thickness and spin speed range for achieving 1.2 µm film thickness on silicon wafers?

A: For 1.2 µm nominal thickness (measured by ellipsometry), use 2500–3000 rpm for 30 seconds on 200 mm wafers; exact speed depends on substrate topography and ambient humidity (target: 40–60% RH).

Q3: How does RZJ-2500E compare to RZJ-2300D in terms of resolution and process window?

A: RZJ-2500E offers ~15% higher resolution (0.8 µm vs. 0.95 µm) and broader focus latitude (±0.45 µm vs. ±0.32 µm), achieved via refined DNQ dispersion and optimized polymer molecular weight distribution.

Q4: Is RZJ-2500E certified for use in medical device microfabrication under ISO 10993 or USP Class VI?

A: While RZJ-2500E is not individually certified to ISO 10993 or USP Class VI, it has been successfully used in Class III implantable device manufacturing where final device biocompatibility is validated per end-product testing protocols — residual monomer and extractables meet ICH Q3C limits.

Q5: Are there documented migration or solvent extraction studies for RZJ-2500E residues in aqueous or lipid environments?

A: Yes — internal GLP-compliant extraction studies (per USP <661.1>) show ≤ 0.12 ppm total organic extractables in 50% ethanol/water at 40 °C for 24 h; no detectable leachables (<0.05 ppm) in simulated body fluid (SBF) after 72 h.