亚洲av日韩av高潮潮喷无码-亚洲av日韩av激情亚洲-亚洲av日韩av男人的天堂在线-亚洲av日韩av女同同性-亚洲av日韩av天堂久久-亚洲av日韩av天堂影片精品

Welcome to Huizhou Hongsheng Smart Card Technology Co., Ltd.
Service Hotline:
135 2876 3752

News

Contact Us

You are here:Home >> News >> Company News

Company News

Chip manufacturing history

Time:2019-08-14 Views:51
The foregoing integrated circuit for fabricating a circuit on the surface of a semiconductor chip is also referred to as a thin film integrated circuit; another thick film hybrid integrated circuit is a miniaturized circuit composed of an independent semiconductor device and a passive component integrated into a substrate or a wiring board.
The characteristics of the integrated circuit industry are that the winners take all the time, and giants like Intel can make profits of up to 60% during the peak period. Then, what is the actual cost of a CPU that is relatively hundreds or thousands of dollars?
Let’s take a look at the manufacturing process
   The complete process of chip fabrication includes chip design, wafer fabrication, package fabrication, and cost testing. The wafer fabrication process is particularly complicated. The precision of the manufacturing process of the chip is very complicated. First of all, the chip design, according to the design requirements, the generated "pattern".
1, the chip raw material wafer
   The composition of the wafer is silicon, the silicon is refined by quartz sand, the wafer is purified by silicon (99.999%), and then the pure silicon is made into a silicon ingot, which becomes the quartz semiconductor for manufacturing integrated circuits. The material, which is sliced, is the wafer that is specifically needed for the chip fabrication. The thinner the wafer, the lower the cost of production, but the higher the process requirements.
2, wafer coating
   The wafer coating film is resistant to oxidation and temperature resistance, and its material is a kind of photoresist.
3, wafer lithography development, etching
   This process uses chemicals that are sensitive to ultraviolet light, which is soft when exposed to ultraviolet light. The shape of the chip can be obtained by controlling the position of the shade. The silicon wafer is coated with a photoresist such that it dissolves when exposed to ultraviolet light. At this time, the first shade can be used so that the portion of the direct ultraviolet light is dissolved, and the dissolved portion is then washed away with a solvent. The rest of this is the same shape as the shade, and this effect is exactly what we want. This gives us the silicon dioxide layer we need.
4, add impurities
   Ions are implanted into the wafer to generate corresponding P and N semiconductors. The specific process is to start with the exposed area on the silicon wafer and place it in a chemical ion mixture.
   This process will change the way the doping region conducts, allowing each transistor to turn on, off, or carry data. A simple chip can use only one layer, but a complex chip usually has many layers. At this time, the process is repeated continuously, and different layers can be connected by opening windows. This is similar to the principle of making multi-layer PCB boards. More complex chips may require multiple layers of silicon dioxide, which is achieved by repeated photolithography and the above process to form a three-dimensional structure.
Copyright © 2019 Huizhou Hongsheng Smart Card Technology Co., Ltd. All Rights Reserved.  
主站蜘蛛池模板: 亚洲综合精品成人啪啪 | 免费一级毛片在线观看 | 中文字幕三级理论影院 | 午夜情趣视频 | 日韩欧美亚洲精品 | 99视频全部看免费观 | 久久久精品 | 日韩精品久久久毛片一区二区 | 久久久久久青草大香综合精品 | 99影视在线视频免费观看 | 亚洲天堂一区在线 | 色鬼久久爱综合久久鬼色 | 亚洲另类网| 狠狠色丁香久久婷婷综 | a加勒比一本东京 | 精品国产一区二区三区香蕉沈先生 | 国产视频国产 | 国产二级毛片 | 欧美性久久久久 | 狠狠色噜噜狠狠色综合久 | 久青草国产在视频在线观看 | 亚洲小视频在线播放 | 免费一级a毛片夜夜看 | 修修视频在线观看 | xxxxyoujizz护士| 欧美一区二 | 免费一级网站 | 欧美日韩你懂的 | 亚洲狠狠操 | 日韩精品一区二区三区免费视频 | 99ri国产 | 男人天堂视频在线观看 | 天天爽夜夜爽精品视频一 | 国产农村妇女一级毛片 | 国产国语一级a毛片高清视频 | 亚洲欧美日韩国产vr在线观 | 国产高清不卡 | 欧美视频第二页 | 精品免费久久久久久成人影院 | 亚洲男女在线 | 国产免费一区二区 |