Ammonium Hydroxide (29%) from India for Display Manufacturing
High-purity ammonia water supports the etching process in display manufacturing.
In the display manufacturing industry, precise control in the etching process is required to consistently supply high-quality products. Particularly in the formation of fine patterns, the purity and uniformity of the etching solution are crucial, as contamination by impurities can lead to reduced yield and product defects. Our Electronic Grade ammonia water (29%) from India employs an ultrapure water process through RO + DM treatment, achieving impurity removal at the ppm to ppb level. This supports high quality and stability in the etching process. 【Application Scenarios】 - Etching of display substrates - Removal of photoresist - Cleaning processes 【Benefits of Implementation】 - Improved etching quality with high-purity ammonia water - Enhanced yield - Increased product reliability
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【Features】 - High Purity: High purity specifications for electronics and clean rooms - Ultrapure Water Process: Adoption of an ultrapure water manufacturing process using RO + DM treatment - Low Impurities: Removal of impurities at ppm to ppb levels - Stable Supply: Flexible response from sample support to mass production shipments - Strict Quality Control: Major metal impurities below 300 ppb, particle count below 25 particles/mL 【Our Strengths】 Kowa Co., Ltd. is a company with a history of over 130 years, founded in 1894. We combine trading company functions with manufacturing capabilities, developing a wide range of businesses. Based on years of experience and achievements, we provide optimal products and services tailored to our customers' needs.
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Applications/Examples of results
Ammonium hydroxide (29% Electronic/Cleanroom Grade) is widely used in processes that require high levels of cleanliness, such as semiconductor, electronic components, optical products, and pharmaceutical manufacturing. In particular, in the semiconductor field, it is used in the cleaning and etching processes of silicon wafers and glass substrates, demonstrating excellent effectiveness in particle removal and surface modification. Additionally, it shows high suitability as a polishing and cleaning solution for optical lenses and liquid crystal glass, and it is also adopted in the cleaning and sterilization processes of manufacturing equipment in the pharmaceutical and food industries. In the chemical field, it is effective as a catalyst and reagent, as well as a pH adjuster and adsorbent in water treatment processes. Due to its cleanroom-compatible grade, it maintains stable quality across various applications in electronics, pharmaceuticals, and research and development, and its use is expanding as an important high-purity raw material in advanced industries both domestically and internationally.
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Kowa Co., Ltd. is a company with a history of over 120 years, founded in 1894 as a cotton fabric wholesaler. As the core company of the Kowa Group, it has both trading functions for the import and export of textiles, machinery, building materials, and trilateral trade, as well as manufacturing functions for pharmaceuticals, medical devices, vision units, energy-saving, and energy-creating related products, covering a wide range of business fields. One of its divisions, the Kowa Resource Materials Department, Inorganic Materials Section, engages in wholesale business for the import and export of raw materials and also acts as a sales agent for distinctive domestic and overseas raw materials.