Automotive electronics have been advancing rapidly in their successful pursuit of environmental friendliness, safety, comfort, and convenience. Such advancements have been achieved through the use of approximately one hundred processors per luxury car. Semiconductor sensors and power semiconductors have also played an important role in enhancing the performance of cars. In this article, I describe the current issues and future prospects of automotive semiconductors, while considering new semiconductor technologies and their applications.%近年，自動車エレクトロニクスは，環境・安全・快適・rn利便の追求から急速な伸展をみせており，高級車においrnては100個程度のマイクロコンピュータが搭載され，半rn導体センサやパワー半導体は，車の性能を左右する役割rnを担っている．このように，1980年代までは脇役であっrnた車載半導体は，将来はより本質的な役割を担うようにrnなっていくと予測される．
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