Semiconductor mold cleaners MC-261 and MC-701 are thermosetting resins formed by mixing melamine resin with organic and inorganic fillers. Our mold cleaners yield good results in removing residuals left on the mold after molding with epoxy resin materials. Due to the ......More→
N-butyl acetate is a colorless transparent liquid with a pleasant fruity odor. Unlike lower molecular weight homologues (such as methyl acetate, ethyl acetate and propyl acetate), it is insoluble in water, but is miscible with organic solvents, such as alcohol, ......More→
A water-soluble cleaning solution designed for cleaning wafers during dicing in semiconductors packaging plants. It has low-surface tension with both hydrophilic and lipophilic characteristics, resulting in excellent adsorption to wafers.
The primary function of the stripper is to remove the excess photoresist after etching. Our electronic grade stripper is designed for TFT-LCD applications. During TFT-LCD manufacturing, stripper will be heated and then the glass substrate will be immersed. Water is then removed by ......More→
Hydrogen peroxide is a colorless transparent liquid with a slight odor of ozone and can be mixed with water in any proportion. Its molecular formula is H2O2 (with molecular weight of 34). Hydrogen peroxide is an economical chemical that is widely used in various industries, such as: ......More→
Propylene glycol monomethyl ether (PGME) and ethylene glycol ether are both glycol ether solvent. From human toxicity’s perspective, toxicity of propylene glycol ether is lower than that of ethylene glycol ......More→
We also offer phenolic resins as a hardening agent for the electronic industry. They offer good mechanical strength, dimensional/thermal stability, and resistance to electricity, solvent, and acid. They are widely used in molding materials (including ......More→
gamma-Butyrolactone (GBL) is a solvent with high-boiling point. Its advantages of good solubility, dielectric property, and stability make it suitable as an extractant, dispersant, and dyeing auxiliaries. GBL is also an important intermediate for organic synthesis and can be used in fields such as ......More→
Our developer is produced by diluting our 25% TMAH to 2.38% with ultra-pure water. This product is actually commissioned by Tokyo Ohka Kogyo Co., Ltd. (TOK), using TOK’s specially formulated emulsifier.
EME (epoxy molding compounds) possess excellent moldability, good mechanical and electrical properties, and high reliability. It is mainly used for semiconductor component packaging, especially for IC (integrated circuits), diodes, transistors, photocouplers, and coils.
Chang Chun has developed its own manufacturing technology for copper sulfate solution. High-purity copper is procured to produce copper sulfate solutions using the highest standards. Our copper sulfate solutions can be customized according to the specifications of the ......More→
Propylene glycol monomethyl ether acetate (PGMEA/PMA), also known as propylene glycol methyl ether acetate, is a colorless hygroscopic liquid with a special odor. It is a non-polluting ......More→
Chang Chun is the earliest and also the largest manufacturer of tetramethyl ammonium hydroxide (TMAH) in ......More→
Chang Chun is the largest manufacturer of hydrogen peroxide in Taiwan. Hydrogen peroxide is an important chemical for cleaning wafer in semiconductor plants. Our hydrogen peroxide has the largest market share in Taiwan.......More→