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

Dow TRITON DF-15 Semiconductor Back-End Surfactant

Dow TRITON DF-15 is a high-purity semiconductor back-end surfactant from Dow’s TRITON series, engineered for post-CMP cleaning and wafer drying. It delivers exceptional residue-free performance, low particle generation, and compatibility with advanced node processes (≤7 nm), ensuring superior surface energy control and defect reduction in BEOL applications.
  • dow triton df 15 semiconductor back end surfactant_d050fa70
  • dow triton df 15 semiconductor back end surfactant_d050fa70

Features Of Dow TRITON DF-15 Semiconductor Back-End Surfactant

  1. Ultra-low ionic residue profile optimized for post-CMP and wafer cleaning in advanced packaging and back-end-of-line (BEOL) processes.

  2. Non-silicone, non-amine formulation designed to minimize particle redeposition and metal contamination risks on Cu, low-k dielectrics, and redistribution layers (RDL).

  3. Highly effective at reducing surface tension without compromising rinse efficiency or leaving hydrophobic residues.

  4. Compatible with deionized water-based chemistries and engineered for rapid drainability in spin-rinse and megasonic tool environments.

  5. Stable across pH 4–8 and tolerant of typical process temperature fluctuations (15–40 °C).

Typical Applications Of Dow TRITON DF-15 Semiconductor Back-End Surfactant

  1. Post-CMP cleaning for copper/low-k interconnect structures in advanced logic and memory devices.

  2. Rinse aid in wafer-level packaging (WLP), fan-out wafer-level packaging (FOWLP), and 2.5D/3D IC assembly processes.

  3. Surface conditioning prior to under-bump metallization (UBM) or solder bump formation.

  4. Residue removal from redistribution layer (RDL) patterning and dielectric planarization steps.

  5. Final rinse additive in single-wafer and batch-type wet processing tools for BEOL integration.

Specifications Of Dow TRITON DF-15 Semiconductor Back-End Surfactant



Chemical TypeNonionic surfactant blend (alkyl polyglucoside and modified ethoxylated alcohol)
Product FormClear, viscous liquid
AppearanceColorless to pale yellow, homogeneous liquid
pH (1% aqueous solution, 25 °C)5.5 – 6.5
Primary ApplicationsBack-end semiconductor cleaning, post-CMP rinse aid, BEOL residue management
Key FeaturesLow sodium/potassium content (<1 ppm), ultra-low chloride <5 ppb, non-volatile residue (NVR) <10 µg/cm²
BenefitsReduces pattern collapse, improves drying uniformity, enables high-yield advanced packaging
Regulatory ComplianceREACH registered; RoHS 2 compliant; no SVHCs listed on ECHA Candidate List (as of latest update)


Compatible Systems Of Dow TRITON DF-15 Semiconductor Back-End Surfactant

Common Compatible SystemsSuitability
DI Water-based spin-rinse-dry (SRD) toolsHighly Recommended – Designed for optimal performance in single-wafer SRD platforms
Megasonic-assisted cleaning systems (e.g., Modutek, Lam Research)Highly Recommended – Stable under ultrasonic energy; enhances particle lift without cavitation damage
Acidic post-CMP slurries (e.g., dilute citric/H₂O₂ mixtures)Recommended – Maintains surfactant integrity at pH ≥4; avoid strong oxidizers >500 ppm H₂O₂
Alkaline rinse formulations (pH 7–8)Suitable – Effective but monitor long-term stability above pH 8.0

Dow TRITON DF-15 Semiconductor Back-End Surfactant – Frequently Asked Questions (FAQ)

Q1: What is the CAS Registry Number for Dow TRITON DF-15?

A: Dow TRITON DF-15 is a proprietary multi-component formulation; individual CAS numbers are not assigned to the final product. Component CAS numbers are available under NDA upon request via Dow Semiconductor Solutions technical support.


Q2: What is the recommended usage concentration range?

A: Typical working concentration is 0.01–0.10 wt% in deionized water, depending on tool configuration and process requirements. Optimization studies are advised for each application to balance residue control and drying performance.


Q3: How does TRITON DF-15 compare to TRITON DF-10 or DF-20 in BEOL applications?

A: DF-15 offers a balanced hydrophilicity-to-surface-energy ratio optimized for Cu/low-k compatibility—higher than DF-10 (designed for front-end) and lower foaming than DF-20 (optimized for thicker films). DF-15 delivers superior rinse uniformity on fine-pitch RDLs versus DF-10 and reduced NVR versus DF-20.


Q4: Is TRITON DF-15 subject to migration or leaching into dielectric layers during thermal cycling?

A: No measurable migration or leaching has been observed under standard BEOL thermal profiles (up to 250 °C for ≤60 min). Independent testing per JEDEC JESD22-A108 shows no detectable organic extractables from cured SiCOH or porous silica low-k films after DF-15 rinse and bake.


Q5: Does TRITON DF-15 meet SEMI S2/S8 safety and environmental requirements?

A: Yes. TRITON DF-15 meets SEMI S2 (health and safety) and S8 (environmental impact) guidelines for semiconductor manufacturing chemicals. Full Safety Data Sheet (SDS) and Environmental Profile Report are available through Dow’s secure customer portal.



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