Chips made by the 90nm process can only be used in almost first-generation smart devices and mobile phones.
For example, Texas Instruments' 90-nanometer process OMAP1710CPU, at that time this processor was installed on a series of Nokia mobile phones, such as N90, N80, E70, E60, the main Nokia N series and E series products, Apple's first mobile phone cpu APL0098, Made in 2007 by Samsung Electronics 90nm process, it was used on the iphone3G and the first generation iphone touch