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

Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-Propanediamine

Dow Chemical Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-propanediamine (DMAPA) is a high-purity aliphatic diamine used in photoresist formulations and CMP slurries. It serves as a key ligand and pH buffer for advanced semiconductor etching and cleaning processes. With ultra-low metal impurities (<10ppb), it ensures wafer yield and device reliability in sub-28nm node manufacturing.
  • semiconductor raw material specialty amine series n n dimethyl 1 3 propanediamin_d4594570
  • semiconductor raw material specialty amine series n n dimethyl 1 3 propanediamin_d4594570

Features Of Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-Propanediamine

  1. High-purity grade specifically engineered for semiconductor-grade chemical synthesis and precursor applications.

  2. Controlled volatility and low residual moisture content to ensure process stability in ultra-clean fabrication environments.

  3. Consistent batch-to-batch reproducibility with stringent QC testing per SEMI C1–C5 standards.

  4. Optimized molecular structure enabling selective chelation and controlled amine reactivity in metal-organic deposition (MOD) processes.

  5. Non-halogenated, low-metal impurity profile (<10 ppb total metals) supporting advanced node lithography and etch compatibility.

Typical Applications Of Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-Propanediamine

  1. Chelating ligand in high-k dielectric precursors (e.g., Hf/Zr-based ALD/CVD metal-amine complexes).

  2. Stabilizing agent for colloidal nanoscale metal catalysts used in selective epitaxial growth (SEG).

  3. Co-ligand in copper electroplating additive formulations for ultra-low-k interlayer dielectrics.

  4. Functional modifier in photoresist polymer backbones to enhance dissolution contrast and post-exposure thermal stability.

  5. Reaction intermediate in the synthesis of semiconductor-grade silane-amine hybrid surface modifiers.

Specifications Of Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-Propanediamine



Chemical TypeAliphatic tertiary diamine
Product FormLiquid (clear, colorless)
AppearanceClear, water-white liquid at 25°C
Melting Point−45°C (typical)
Boiling Point178–182°C at 760 mmHg
Primary ApplicationsSemiconductor precursor synthesis, ALD/CVD ligand, photoresist functionalization
Key FeaturesLow volatility index (VOC <5 g/L), non-corrosive to quartz and silicon nitride
Regulatory ComplianceREACH registered; RoHS compliant; no SVHC on ECHA Candidate List


Compatible Systems Of Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-Propanediamine

Common Compatible SystemsSuitability
Hf(NMe₂)₄ / Zr(NMe₂)₄ precursor blendsHighly Recommended – Enables improved thermal decomposition control and film stoichiometry
Propylene glycol monomethyl ether acetate (PGMEA)-based photoresist solventsRecommended – Fully miscible; no phase separation or haze formation
Electrolyte systems for Cu-Sn alloy electroplating bathsSuitable – Acts as complexing buffer without interfering with deposition kinetics
Ultra-pure deionized water (18.2 MΩ·cm) dilution systemsHighly Recommended – Stable aqueous dispersion up to 5 wt% with <0.1 NTU turbidity

Semiconductor Raw Material Specialty Amine Series N,N-Dimethyl-1,3-Propanediamine – Frequently Asked Questions (FAQ)

Q1: What is the CAS Registry Number for N,N-Dimethyl-1,3-propanediamine?

A: The CAS number is 109-55-7. Our semiconductor-grade material undergoes additional purification to achieve ≥99.999% purity with verified trace metal certification.


Q2: What is the recommended handling concentration for use in ALD precursor formulation?

A: Typical molar ratios range from 1.2:1 to 2.5:1 (amine:metal precursor), depending on target volatility and film carbon residue. Dilution in anhydrous toluene or hexanes is advised under inert atmosphere.


Q3: How does this specialty amine differ from standard commercial N,N-dimethyl-1,3-propanediamine?

A: Unlike commodity grades, our product features sub-ppb sodium/potassium, <1 ppb Fe/Al/Cu, certified absence of chloride and sulfate ions, and full traceability via lot-specific CoA aligned with SEMI F57.


Q4: Is this material subject to migration or leaching in post-deposition thermal processing?

A: No significant migration is observed below 350°C in SiO₂ or SiNₓ matrices. TGA-MS data confirms clean decomposition onset at 215°C with >99.5% volatile removal by 300°C—no detectable amine residue in SIMS depth profiling.



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