LG Chem enters semiconductor strippers

South Korea’s LG Chem has begun the mass production and supply of semiconductor strippers to Amkor Technology, a global player in outsourced semiconductor assembly and test. This marks LG Chem’s first entry into this specific market, which it has done via the capabilities it developed through its display stripper business.

Semiconductor strippers are critical process materials that are used to remove photoresist and residue remaining on semiconductor substrates after circuit patterning. This has become increasingly important as semiconductor circuits continue to shrink, directly affecting manufacturing yield and product reliability. 

LG Chem demonstrated the technology’s competitiveness by passing Amkor’s qualification process. The stripper it is supplying has been customised and optimised for the Amkor’s new production line. It is claimed to reduce the process time required to remove photoresist and process residue by about 50%.

Earlier this year, LG Chem announced a strategy to more than double the size of its electronics materials business. As part of this, the company is expanding its semiconductor packaging materials portfolio, including copper-clad laminates, die attach films and photo imageable dielectric, while accelerating the growth of its high-value-added electronic materials business.