Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Semiconductor Raw Material Specialty Amine Series Triethylamine

Triethylamine by Semiconductor Raw Material Specialty Amine Series is a high-purity tertiary amine (CAS 121-44-8) used as catalyst and corrosion inhibitor in semiconductor etching and photoresist formulation. Featuring ultra-low metal impurities (<10ppb), it ensures process stability and wafer yield. Supplied in sealed stainless-steel containers with strict moisture/oxygen control for advanced node fabrication.
  • semiconductor raw material specialty amine series triethylamine_494eac94
  • semiconductor raw material specialty amine series triethylamine_494eac94

Features Of Semiconductor Raw Material Specialty Amine Series Triethylamine

  1. Ultra-high purity (≥99.99% GC), rigorously controlled for trace metal content (Na, K, Fe, Cu < 10 ppb) to prevent semiconductor device contamination.

  2. Low volatility and optimized vapor pressure profile for precise vapor-phase delivery in CVD/ALD processes.

  3. Consistent batch-to-batch reproducibility with certified analytical reports (CoA) per lot, including NMR and GC-MS verification.

  4. Stabilized formulation with proprietary antioxidant system to inhibit amine oxidation and extend shelf life under inert storage.

  5. Manufactured in ISO 9001- and ISO 14001-certified cleanroom facilities compliant with SEMI S2/S8 safety and environmental standards.

Typical Applications Of Semiconductor Raw Material Specialty Amine Series Triethylamine

  1. Catalyst and ligand precursor in atomic layer deposition (ALD) of high-k dielectric films (e.g., Al₂O₃, HfO₂).

  2. Reducing agent and complexing ligand in solution-based synthesis of metal-organic precursors for copper interconnect metallization.

  3. pH modulator and co-catalyst in photoresist development formulations for advanced lithography (EUV and ArF immersion).

  4. Surface passivation additive in post-CMP cleaning chemistries to suppress metal ion redeposition.

  5. Key reagent in the synthesis of nitrogen-doped carbon nanomaterials used in next-generation semiconductor packaging substrates.

Specifications Of Semiconductor Raw Material Specialty Amine Series Triethylamine



Chemical TypeTertiary aliphatic amine
Product FormLiquid (bulk or sealed ampoule)
AppearanceColorless to pale yellow clear liquid
Melting Point−114 °C
Boiling Point (at 760 mmHg)89 °C
Density (20 °C)0.726–0.729 g/cm³
Primary ApplicationsALD/CVD precursor synthesis, photoresist additives, CMP chemistry, surface functionalization
Regulatory ComplianceREACH registered; RoHS 2.0 compliant; no SVHC on ECHA Candidate List (as of latest update)


Compatible Systems Of Semiconductor Raw Material Specialty Amine Series Triethylamine

Common Compatible SystemsSuitability
ALD Tools (e.g., ASM Eagle XP8, Oxford FlexAL)Highly Recommended – Fully compatible with standard vaporizer configurations and stainless-steel delivery lines
Photoresist Development Baths (TMAH-based)Recommended – Demonstrated stability in alkaline developers at ≤0.5 wt% concentration
CMP Slurry Systems (Colloidal Silica, Ceria)Suitable – Effective as surface modifier without destabilizing abrasive dispersion
Organometallic Synthesis Reactors (Schlenk, glovebox)Highly Recommended – Inert-atmosphere handling validated; no observed side reactions with common metal halides

Semiconductor Raw Material Specialty Amine Series Triethylamine – Frequently Asked Questions (FAQ)

Q1: What is the CAS Registry Number for this grade of triethylamine?

A: The CAS number is 121-44-8. This specific semiconductor-grade material carries an additional lot-specific purity designation and trace metal certification beyond standard commercial triethylamine.


Q2: What is the recommended dosage range when used in ALD precursor synthesis?

A: Typical stoichiometric ratios range from 1.2:1 to 3:1 (triethylamine : metal halide), depending on the target complex. Exact optimization requires empirical testing under process-relevant conditions; application support documentation is provided with each shipment.


Q3: How does this specialty amine differ from technical-grade triethylamine in terms of extractables and leachables?

A: Unlike technical grades, this product undergoes multi-stage sub-micron filtration and fractional distillation under nitrogen, reducing volatile organic impurities (VOCs) and non-volatile residues by >99%. Extractables testing per SEMI F57 shows <5 ng/cm² total organics after exposure to 18.2 MΩ·cm DI water at 60 °C for 24 h.


Q4: Is this material certified for use in Class 10 cleanroom environments?

A: Yes — all packaging (including fluoropolymer-lined bottles and crimp-sealed glass ampoules) is certified for Class 10 (ISO 4) cleanroom use per ISO 14644-1. Particulate testing per SEMI F32 confirms ≤1 particle ≥0.5 μm per mL in dispensed liquid.



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