韓国半導体産業におけるメモリー製品開発の現段階

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  • The Initial Development of Memory Devices of Korean Semiconductor Industry since 2000s
  • カンコク ハンドウタイ サンギョウ ニ オケル メモリー セイヒン カイハツ ノ ゲン ダンカイ

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The purpose of this paper is to consider the sources of technological competitiveness of the Korean semiconductor industry since the 2000s, particularly from the point of view of the development of memory semiconductors devices. The following issues are discussed. Due to the diversification of semiconductor memory devices, the development of multiple kinds of devices including DRAM, synchronous DRAM, Double Data Rate (DDR), flash memory and Rambus memory have been promoted concurrently. The factor driving diversification of semiconductor memory devices was the paradigm shift brought about by the advent of the Internet of Things, autonomous vehicle technologies, the Cloud, big data, and artificial intelligence since 2010. The diversification of semiconductor memory devices has brought about complementary relations among multiple memory devices and market segmentation. Korean semiconductor companies have developed three-dimensional semiconductor memory devices that are laminated semiconductor memory cells, in advance of other foreign companies. The factors driving the need for lamination were the limitations of Moore’s Law and miniaturization. Through the use of all three dimensions, it is possible to increase the information capacity and transfer rate, reduce power consumption, and attain superiority in technology competitiveness. Since the 2000s, Korean semiconductor companies have conducted patent activities ahead of others. For example Samsung Electronics and SK Hynix have acquired many patents for NAND flash memory and next generation memory technologies and have secured precedence in patent applications. As a result, Korean semiconductor companies are profiting over their foreign competitors by benefitting from their early and positive participation in patent applications. In this way, since the 2000s, they have applied for patent applications in advance, enhancing the technological competitiveness of semiconductor memory devices. It was a huge capital investment in research and development by Korean semiconductor companies that financially supported the diversification of three-dimensional memory devices such as laminated semiconductor memory cells, as well as patent activities and international standardization activities.

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