Jeju Semiconductor

Jeju Semiconductor (JSC) is a fabless memory semiconductor company that started in 2000 with a focus on mobile memory. It develops and supplies memory products such as MCP, LPDRAM, eMMC, and OctaRAM for IoT, mobile, automotive, and consumer electronics markets. The company is headquartered in Jeju, South Korea.

Jeju Semiconductor was established as EMLSI Co., Ltd. in 2000. In 2001, it developed 4M SRAM for Nokia and started mass production supply. In 2003, it started development and mass production of 1M, 2M, 8M SRAM. In 2004, it started development and mass production of 16M Pseudo SRAM. In 2005, the head office moved to Jeju Island. In 2007, it merged with Ramsway. In 2008, it started mass production of 16Mb/32Mb/64Mb CRAM. In 2011, it achieved USD 84,000,000. In 2012, it started production supply of 64M CRAM MCP. In 2013, it changed its corporate name from EMLSI to JSC (Jeju Semiconductor) and started mass production of NAND MCP. In 2014, it started mass production of 1Gb LPDDR1 and started design of 2Gb LPDDR2. In 2015, it started mass production supply of 128Mb T2M and started 64Mb OctaRAM design. In 2016, it started 128Mb OctaRAM design and 64Mb T2M design. In 2017, it started mass production of 64Mb OctaRAM and started design of U2RAM. In 2018, it started mass production of eMMC. In 2019, it started mass production of SPI NAND / SD NAND / eMCP. In 2020, it started mass production of DDR3/LPDDR4 NAND MCP, achieved AEC-Q100 Qualified, and started DDR4 design. In 2021, it achieved 5G IoT Memory Qualified.

1. 1Main - JSCjeju-semi.com
2. 2History - JSCjeju-semi.com
3. 3Introduction - JSCjeju-semi.com
4. 4CI - JSCjeju-semi.com