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SEMI G5 Grade Ultra-High Purity IPA for Semiconductors

Posted On: 2024-05-21 UniVOOK Chemical (Shanghai) Co.,Ltd

The semiconductor industry stands at the forefront of technological advancement, powering innovations across various sectors. Within this dynamic landscape, the significance of ultra-high purity IPA cannot be overstated. UniVOOK Chemical specializes in providing Electronic Grade IPA (G5 Grade) crucial for manufacturing semiconductors, display panels, solar cells, OLEDs, and more. Our mission is to leverage our expertise to create enduring value for customers, employees, and partners. Through collaborative problem-solving, we strive to minimize risk and deliver reliable solutions that drive progress in semiconductor technology.

Definition and Characteristics of SEMI G5 Grade Ultra-High Purity IPA

Definition of SEMI G5 Grade IPA

SEMI G5 Grade IPA refers to the highest purity level of isopropyl alcohol (IPA) defined by the Semiconductor Equipment and Materials International (SEMI) organization. It sets stringent standards for the quality and purity of IPA used in semiconductor manufacturing processes.

Criteria and Specifications for Ultra-high Purity IPA
  • Purity levels: SEMI G5 Grade IPA typically has purity levels exceeding 99.9999% (six nines purity) to minimize contamination risks during semiconductor fabrication.
  • Low moisture content: It must have extremely low moisture content to prevent moisture-induced defects in semiconductor devices.
  • Impurity levels: Strict limits are set for impurities such as metals, acids, and non-volatile residues to ensure compatibility with semiconductor processing requirements.
Key Characteristics and Properties Required for Semiconductor Applications
  • High solvency: SEMI G5 Grade IPA should effectively dissolve and remove organic and inorganic contaminants from semiconductor surfaces without leaving residues.
  • Non-conductive: It must be electrically non-conductive to prevent short-circuiting and damage to sensitive electronic components.
  • Compatibility: The IPA should be compatible with various semiconductor materials, including silicon, gallium arsenide, and silicon carbide, without causing adverse reactions or surface damage.

Manufacturing Process of SEMI G5 Grade Ultra-High Purity IPA

Raw material Selection
  • Starting materials: High-purity isopropyl alcohol is sourced from reputable suppliers, ensuring minimal impurities and contaminants.
  • Water purification: Water used in the manufacturing process undergoes extensive purification steps, including reverse osmosis, deionization, and distillation, to achieve ultra-low moisture levels.
  • Filtration: Filtration processes are employed to remove particulate matter and other impurities from the raw materials.
Distillation and Purification Methods
  • Fractional distillation: The crude IPA is subjected to fractional distillation under vacuum conditions to separate it from water and other volatile impurities.
  • Molecular sieves: Adsorbent materials such as molecular sieves are utilized to further remove trace impurities, moisture, and odors from the distilled IPA.
  • Advanced purification techniques: Techniques like ultrafiltration, ion exchange chromatography, and gas chromatography are employed to achieve the desired purity levels.
Quality Control Measures During Production
  • In-process monitoring: Regular sampling and analysis are conducted throughout the manufacturing process to monitor purity levels, moisture content, and impurity concentrations.
  • Batch consistency: Stringent quality control protocols ensure batch-to-batch consistency in purity and quality, minimizing variability in product performance.
  • Compliance with standards: The production process adheres to SEMI standards and industry best practices to meet the stringent requirements for SEMI G5 Grade IPA.

By strictly following these manufacturing processes and quality control measures. UniVOOK Chemical ensures the production of SEMI G5 grade ultra-high purity IPA that meets the stringent standards of the semiconductor industry.

Applications of SEMI G5 Grade Ultra-High Purity IPA in Semiconductor Manufacturing

Wafer Cleaning

SEMI G5 Grade Ultra-High Purity IPA is extensively used in the semiconductor industry for wafer cleaning processes. It effectively removes contaminants such as particles, residues, and organic films from the surface of silicon wafers, ensuring high yields and device reliability.


In photolithography, SEMI G5 Grade IPA is utilized as a critical solvent for developing photoresist patterns on semiconductor wafers. Its high purity and low residue characteristics enable precise and uniform development, essential for creating intricate circuit patterns in semiconductor devices.

Etching and Stripping Processes

SEMI G5 Grade IPA serves as a key solvent in etching and stripping processes during semiconductor fabrication. It is used to dissolve photoresist residue and other organic materials after pattern transfer. Helps accurately define circuit features and interconnections on semiconductor wafers.

Other Semiconductor Fabrication Processes

Additionally, SEMI Grade G5 IPA can be used in a variety of other semiconductor manufacturing processes. Includes surface cleaning, oxide removal, diffusion and thin film deposition. Its exceptional purity and compatibility with semiconductor materials make it indispensable for achieving high-quality device performance and reliability.

Market Trends and Growth Opportunities

Demand Drivers for Ultra-high Purity IPA in the Semiconductor Industry

The demand for SEMI G5 Grade Ultra-High Purity IPA is driven by the continuous advancement of semiconductor technology and the increasing complexity of semiconductor manufacturing processes. Key factors driving demand include the increasing adoption of advanced semiconductor devices in consumer electronics, automotive and industrial applications. And the emergence of new technologies such as 5G, artificial intelligence and the Internet of Things (IoT).

Market Size and Growth Projections

The market for ultra-high purity IPA in the semiconductor industry is expected to witness steady growth in the coming years. As semiconductor manufacturing capabilities expand and R&D investments increase. The market size is expected to reach new heights. Emerging markets in the Asia-Pacific region, especially countries such as China, South Korea and Taiwan. It is expected to contribute significantly to market growth.

Regulatory Compliance and Safety Considerations

Regulatory Standards and Certifications for SEMI G5 Grade IPA

SEMI G5 Grade Ultra-High Purity IPA must comply with stringent regulatory standards and certifications to ensure its suitability for use in semiconductor manufacturing. Compliance with SEMI standards, ISO certifications, and other industry-specific regulations is essential to guarantee product quality and reliability.

Safety Protocols for Handling and Storage

Safety protocols for handling and storage of SEMI Grade G5 IPA are critical to preventing potential hazards and ensuring worker safety. Appropriate ventilation, personal protective equipment (PPE) and safe handling measures should be in place. To minimize exposure to vapors and prevent accidents.

Environmental Impact Considerations

Sustainable manufacturing practices and environmental stewardship are increasingly important considerations in the semiconductor industry. Companies producing SEMI Grade G5 ultra-high purity IPA should prioritize environmental sustainability. Take steps to reduce energy consumption, minimize waste generation and promote recycling and reuse of materials. Compliance with environmental regulations and certifications such as ISO 14001 demonstrates a commitment to environmental responsibility.

In Closing

SEMI Grade G5 ultra-high purity IPA plays a critical role in advancing semiconductor manufacturing, enabling the production of high-performance, reliable electronic devices. Its applications range from wafer cleaning to photolithography. Its exceptional purity and compatibility drive innovation and progress in the semiconductor industry. As demand continues to grow and market opportunities expand. UniVOOK Chemical is poised to lead the industry through continued innovation, compliance and an unwavering commitment to safety and environmental responsibility. Embracing these principles ensures a sustainable future for semiconductor manufacturing and the continued evolution of technology.

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