来自沙堆的CPU为何那么贵？看完这些制作工艺，网友：智慧结晶
互联网全面普及的当下，手机不再是奢侈物品，再加上经济的快速发展，人们的生活水平都有所提高，现在手机几乎是人手一部。在日常生活中，手机也逐渐成为不可替代的物品，在这个过程中通讯变得只是辅助功能，更多的是承载着大家的娱乐消遣。
骁龙855处理器
而CPU对于手机来讲，可谓是手机为数不多的核心部件，如同人体大脑一样，进行着思考、计算和指导的作用。就是如此重要的芯片，其原材料原来是从我们常见的沙堆中提炼出来的，是不是有些不可思议呢？跟着小编一起看看你手机里的CPU是怎么制作出来的。
处理器
首先CPU又叫中央处理器，是手机里面超大规模的集成电路，要制成这个CPU先从一堆沙子开始。把沙子放入容器中用机器进行极限脱氧，直到沙子和石英被脱氧到最后有25%的硅元素，此时容器中很可能是极限真空无氧状态。
沙堆
接着脱氧之后进行熔炼，通过高温加热进而通过净化程序，进行高难度的提纯。如此一来，这些在沙子里存在的硅元素才会成为精品硅，进而成为制造半导体的原料，接着再次进行反复的净化提纯，组成一个硅含量高达99.99%的大晶体。
图片来源网络
随后把这个含硅量极高的大晶体进行整形，为了满足集成电路制造的相关加工需要。这个过程是再次把它熔化成为液态，注入到大型高温石英容器中再次进行高温熔化，为的就是让硅原料高度净化，从而做出的处理器才具有更强劲的性能。
图片来源网络
最后通过旋转拉伸的方式把容器中的硅原料取出，形成片状式的晶圆，接着在上面覆盖覆盖感光层，用于控制同一层的其他应用。这层物质干燥之后有很好的感光效果，接着会用一定波长的光进行光刻蚀，这个过程是CPU制造工艺中最为复杂的步骤。
光刻蚀动画演示
终于经过千锤百炼，原本“白菜价”的沙子变成了几乎上万元的CPU，小编发现很好地解释了“经历磨难方能成就自身价值”这句话。看到这里终于明白CPU制作工艺的艰难，怪不得网友直呼：这是人类智慧的结晶。看到这里你有什么想说的呢？文中若有不对之处欢迎评论区留言指出！
图片来源网络
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