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Electronics & Semiconductor Chemicals

Electronics & Semiconductor Chemicals: The Foundation for High-Tech Manufacturing

The semiconductor industry is the backbone of modern technology, responsible for the production of core components such as integrated circuits (ICs), sensors, and electronic components. With stringent requirements for precision, purity, and quality, semiconductor chemicals are an indispensable element, playing a decisive role in every stage of production, from cleaning, etching, and surface treatment to protection and waste management. Chemicals in the semiconductor industry are specialized compounds with extremely high purity, specifically designed to meet stringent standards, ensuring no contamination and maintaining optimal quality for the manufactured materials.

Electronics & Semiconductor chemical classification

  1. Cleaning
    • Hydrochloric acid (HCl): Used to remove unwanted oxide layers from the silicon surface and to remove impurities during material preparation. Purity typically exceeds 99.9% to prevent contamination.
    • Hydrogen Peroxide (H2O2)As a strong oxidizing agent, it cleans silicon and metals, ensuring complete removal of residues or oxides left from previous steps.
  2. Etching
    • Hydrofluoric Acid (HF)The main chemical used to etch silicon oxide (SiO₂), helping to create small and precise details in integrated circuit (IC) manufacturing.
    • Nitric Acid (HNO₃)Combined with HF to smooth and even the silicon surface, ensuring high quality for the device.
  3. Lithography
    • Photoresist (light-sensitive material)Used in the process of creating micro-details on silicon surfaces by shaping and developing detailed images through illumination.
    • Developer Solution: Help visualize the detailed process after lighting.
  4. Deposition
    • Chemical Vapor Deposition (CVD) PrecursorsChemicals like silane (SiH₄) or NH₃ are used to create thin films like oxides or nitrides on the surface of silicon wafers.
    • Physical Vapor Deposition (PVD)Using chemical vapor deposition to deposit metal or compound layers onto silicon surfaces.
  5. Doping
    • Boron Tribromide (BBr₃) and Phosphine (PH₃)These doping agents are used to introduce dopant elements (boron or phosphorus) into silicon, creating desired electronic properties.
  6. Ultra-Pure Water & Gases
    • Deionized Water (DI Water)Used to clean wafers, remove dirt and excess chemicals, ensuring the surface meets the highest standards.
    • Ultra-pure gasNitrogen, Oxygen, and Hydrogen are used in wafer etching, deposition, and protection, maintaining a clean, impurity-free processing environment.
  7. Chemical Mechanical Polishing (CMP)
    • Slurries (Abrasive Slurries)Used in the wafer surface polishing process to ensure flatness and uniformity.
    • Cooling and lubricating chemicalsSupports the grinding process, ensuring optimal polishing performance.
  8. Packaging
    • Epoxy ResinsUsed to encapsulate and protect chips, guarding against environmental factors like moisture and dust.
    • Solder Paste (Solder Alloy)Used to connect electronic components to circuit boards, ensuring good electrical conductivity.
Hóa chất ngành bán dẫn
Semiconductor chemicals

Specific applications of chemicals in the semiconductor industry

  1. Silicon wafer manufacturing:
    • Chemicals such as HCl and HF are used to clean and etch silicon, ensuring that the wafer surfaces are perfect before entering the chip manufacturing process.
  2. Engrave details on silicone:
    • The etching process requires strong etching chemicals like HF to create small details on the silicon surface. This is an indispensable step in creating microchips.
  3. Remove oxides and metal ions
    • Specialty chemicals such as hydrofluoric acid (HF), nitric acid (HNO3), etc., are used to remove unwanted native silicon oxide layers and residual metal ions. This prevents interfering elements, helping to improve the quality and performance of semiconductor chips.
  4. Enhance the adhesion of the thin film
    • The chemical treatment process creates a surface with ideal cleanliness and physicochemical properties, ensuring subsequent coatings, such as oxide or metal layers, can bond better, improving product efficiency and stability.
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Specific applications of chemicals in the semiconductor industry

Chemical requirements in the semiconductor industry

  • High Purity
    • The chemical must be of 99.9999% (6N) purity or higher.
    • Extremely low concentrations of metallic and organic impurities (ppt or ppb), ensuring no interference with semiconductor manufacturing processes.
  • Comply with international standards
    • SEMI Standards: Semiconductor Chemical Standards (SEMI C1-C93).
    • ISO 14644: Ensure cleanroom compatibility.
    • MSDS, RoHS, REACH: Safe, environmentally friendly, and control of hazardous chemicals.
  • Strict quality control
    • Test for purity, metal impurities (by ICP-MS), and organic contamination (by TOC).
    • Strictly test each batch before putting it into production.
  • Specialized packaging and safe storage
    • The packaging must be airtight, resistant to contamination, and made from non-reactive materials (such as fluoropolymers).
    • Meets UN Certified Packaging standards to ensure safety during storage and transportation.
  • Traceability and reputable suppliers
    • Chemicals and suppliers must have a clear traceability system (RFID or barcode).
    • The supplier needs to achieve ISO 9001, ISO 14001 certifications, and meet SEMI requirements.

Why choose Loc Thien Investment and Development Co., Ltd. as a chemical supplier?

Loc Thien Proud to be a supplier of a diverse range of high-quality chemical products, meeting the needs of many industries, especially in semiconductors, surface treatment, and high-tech manufacturing. Products supplied by Loc Thien Company: 

  • Sulfuric Acid (H₂SO₄): Used in the cleaning and etching process of silicon wafer surfaces.
  • Hydrochloric acidHydrochloric acid): Used in surface cleaning and impurity removal during semiconductor manufacturing.
  • Phosphoric Acid (H₃PO₄): Used in etching and surface cleaning processes in microchip manufacturing.
  • Nitric acidNitric acid): Used in the oxidation and cleaning of wafer surfaces.
  • Liquid caustic soda (NaOH) Used to adjust pH and clean surfaces in the production process.
  • Iron(III) ChlorideIron(III) chloride): Used in the process of etching printed circuit boards and metal surface treatment.
  • Zinc Sulfate (ZnSO₄): Can be used in some plating and surface treatment processes.
  • Calcium Hydroxide (Ca(OH)₂): Used in water treatment and pH adjustment in some production processes.

Loc Thien Investment and Development Co., Ltd. is a Vietnam-based industrial chemical supplier. We focus on process-grade supply, logistics support and quotation on request. is a reputable partner in the field of industrial chemical supply in Vietnam. We are committed to superior quality, professional service, and dedicated customer support policies.

  • Top quality: The product meets international standards with ZDHC certification and a full MSDS, ensuring the highest safety and efficiency.
  • Dedicated support Our team of experts is always ready to advise and accompany customers from product selection to use.
  • Transparent return policy Easy returns within 7 days if unsatisfied.
  • Stable supply source Always ready to meet and produce for large orders.
  • Extensive warehouse system Warehouses are spread across major cities such as Ho Chi Minh City, Bac Ninh, Bac Giang, Da Nang, Can Tho, Binh Duong, and Dong Nai, ensuring rapid fulfillment of all orders nationwide.

Semiconductor chemicals is an indispensable factor to ensure the sustainable development of the high-tech industry. With its experience and reputation, Loc Thien Committed to delivering superior products and services, we partner with businesses on their journey to conquer technological heights. Contact us today for consultation and the best chemical solutions!

FAQ about Semiconductor Industry Chemicals

What are semiconductor chemicals?

Semiconductor chemicals are specialized, ultra-high purity chemical compounds specifically designed to meet the stringent requirements in the manufacturing of microchips, sensors, and electronic components.

2. Why is the purity of chemicals important in the semiconductor industry?

High purity eliminates impurities completely, ensuring no contamination of silicon surfaces or damage to material structures, thereby improving product quality and performance.

What are the main types of chemicals used in the semiconductor industry?

  • Cleaning chemicals Hydrochloric Acid (HCl), Hydrogen Peroxide (H₂O₂).
  • Etching chemical Hydrofluoric Acid (HF), Nitric Acid (HNO₃).
  • Environmental Protection and Treatment Chemicals: Polymer Cation/Anion, Polyaluminium Chloride (PAC).

4. How are semiconductor chemicals applied?

  • Clean the silicone surface.
  • Engraving details on the silicon surface.
  • Remove silicon oxide and unwanted metal ions.
  • Improve the adhesion of the next coating layer.

5. What international standards apply to semiconductor chemicals?

International standards such as SEMI Standards, ISO 14644, MSDS, RoHS, and REACH are all applied to ensure quality, safety, and environmental friendliness.

6. Why choose Loc Thien Company as a chemical supplier?

Loc Thien commits to providing high-quality chemicals that meet international standards, offering dedicated customer support, and ensuring a stable supply with an extensive warehouse system throughout Vietnam.

7. How to contact Loc Thien Company?