In most systems in automobile, DRAM is responsible for storage of program codes and computing data, and it plays a more important role during the development of automobiles with more and more ICT functions, which include but are not limited to personal computers (PCs), servers, mobile devices and vehicles. So far, the primary memory-based automotive applications are information & entertainment system and ADAS, and they account for more than 80% of the entire output value of automotive DRAM industry.
Winbond owns self-built wafer fabs, and is one of the top four IC makers that can simultaneously provide DRAM and NOR/NAND FLASH. The production lines of automotive DRAM include SDRAM, DDR/2/3 and LPDDR/2/4/4x with capacity ranging from 16Mb to 8Gb. It can meet customers‘ strict requirements of management of automotive memories, and provide longevity services. The capacity of Winbond LPDDR4/4x DRAM series is 1~8 Gb with 25nm technology node which is self-developed by Winbond, and the speed could be up to 4266Mbps. In addition to the supply type of known good die, Winbond also provides the standard 200BGA package with various kinds of automotive grade whereas AG1 grade will be ready at 3Q’20.
Japan announced that it would demonstrate its autonomous vehicle technology during the Tokyo Olympics as a demonstration of intelligent automobiles. Driven by 5G and artificial intelligence (AI), the ICT industry is heading towards an era of autonomous vehicles. The applications of ICT technologies in cars have been gradually shifted from entertainment videos, audio playbacks and navigation systems in early days to developing deep learning and vehicle-to-everything (V2X) communication in order to eventually make autonomous vehicles a commerical reality. To achieve this goal, semiconductor will undoubtedly be the primary driving force for any ICT technology.
Advanced driver assistance system (ADAS) is the most popular application in the current automotive environment. It is composed of many functions such as Adaptive Cruise Control (ACC), Autonomous Emergency Braking (AEB), Blind Spot Detection (BSD) and Driver Monitoring System (DMS). Car vendors have been trying to work on more active safety protection and expect to reach the ultimate goal of self-driving cars. As such, more semiconductor manufacturers are cooperating with car OEM to boost device reliability.
As mentioned above, currently there have been many actual semiconductors applications for automobiles, including the power semiconductors and video and audio playback and integration systems used in electric vehicles (including hybrid electric vehicles), micro-controllers/digital signal processor/semiconductor sensors used for vehicle and passive safety, and many other types of memories (such as NOR and DRAM). According to the statistics of IHS, the total output value of automotive semiconductor industry has grown at an average annual rate of about 7% in the past few years.
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