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多层板PCB设计的关键要点与优化策略

笔者:广州鼎纪自动化有限责任企业 浏览: 刊出日子:2023-08-03 13:11:52

随着电子技术的发展,多层板PCB(Printe💞d Circuit Board)YIJINGCHENGWEIXIANDAIDIANZICHANPINZHONGBUKEHUOQUEDEYIBUFEN。WEILEMANZUGAOSUSHUJUCHUANSHUHEGAOKEKAOXINGDEXUQIU,DUOCENGBANPCBDESHEJIBIANDEYUELAIYUEFUZA。BENWENJIANGJIESHAODUOCENGBANPCBSHEJIDEZHONGYAOYAODIAN,BAOKUOXINHAOCENGYUDIANYUANCENGBUJU、XINHAOWANZHENGXING、ZUKANGKONGZHI、CENGJIANLIANXIANDENG,BINGTIGONGYIXIEJIANYIHEJIQIAO,BANGZHUNINZAISHEJIGUOCHENGZHONGBIMIANCHANGJIANWENTI,TIGAOCHANPINXINGNENG。

 

1. XINHAOCENGYUDIANYUANCENGBUJU

 

ZAIDUOCENGBANPCBSHEJIZHONG,HELIDEXINHAOCENGYUDIANYUANCENGBUJUDUIYUTIGAODIANLUXINGNENGZHIGUANZHONGYAO。YIBANLAISHUO,XINHAOCENGYINGJINKENENGKAOJINQIQUDONGQIJIAN,YIJIANSHAOXINHAOCHUANSHUDEYANCHI;ERDIANYUANCENGZEYINGᩚᩚᩚᩚᩚᩚ⁤⁤⁤⁤ᩚ⁤⁤⁤⁤ᩚ⁤⁤⁤⁤ᩚ𒀱ᩚᩚᩚJINLIANGKAOJINQIFUZAIQIJIAN,YIJIANGDIDIANYUANZAOSHENGDUIXITONGXINGNENGDEYINGXIANG。CIWAI,HAIXUYAOZHUYIBIMIANXINHAOCENGYUDIANYUANCENGDEXIANGHUGANRAO,RUCAIYONGDIXIANGELI、XINHAOXIANLVBODENGFANGFA。

 

2. 信号完整性

 

移动无线无线信号完好性是以移动无线无线信号在无线传输环节中控制其震幅、相位和耗时优点的力量。是为了能保证移动无线无线信号完好性,必须要在结构设计环节中全面注重一下几个:

 

- CAIYONGHESHIDEBUXIANGUIZE,RUBIMIANPINGXINGXIANZHIJIANDEJIAOCHA、DUANLUDENGXIANXIANG;

- HELIXUANZEDAOXIANDEKUANDUHEJIANJU,YIJIANXIAOXINHAOCHUANSHUGUOCHENGZHONGDESUNHAO;

- DUIMINGANXINHAOJINXINGBAOHU,RUSHIYONGPINGBICENG、DIXIANDENGCUOSHI。

 

3. 阻抗控制

 

ZUKANGKONGZHISHIZHIZAIDUOCENGBANPCBSHEJIZHONG,TONGGUOHELI🐠DEBUXIANHECENGJIANLIANXIANLAISHIXIANZUKANGPIPEI。ꦡZUKANGPIPEIKEYITIGAOXINHAOCHUANSHUDEZHILIANGHEXIAOLV,TONGSHIJIANXIAODIANCIGANRAO。ZAIZUKANGKONGZHIFANGMIAN,XUYAOZHUYIYIXIAJIDIAN:

 

- XUANZEHESHIDECAILIAOHEGONGYICANSHU,YISHIXIANZUKANGPIPEI;

- HELIANPAICENGJIANLIANXIANDEWEIZHIHESHULIANG,YISHIXIANZUKANGKONGZHI;

- DUIYUTESHUDEYINGYONGCHANGJING,KEYIKAOLVCAIYONGZHUANYONGDEZUKANGKONGZHIJISHU,RUBIANYAQI、DIANRONGOUHEDENG。

 

4. 层间连线

 

CENGJIANLIANXIANSHIDUOCENGBANPCBSHEJIZHONGBUKEꦉHUOQUEDEYIBUFEN,TAKEYILIANJIEBUTONGDEXINHAOCENGHEDIANYUANCENG,SHIXIANDIANLUDEGONGNENG。ZAI🧸SHEJIGUOCHENGZHONG,XUYAOZHUYIYIXIAJIDIAN:

 

- CAIYONGHESHIDECENGJIANLIANXIANLEIXING,RUTONGZHICAILIAO、GUANGXIANDENG;

- HELIANPAICENGJIANLIANXIANDEWEIZHIHESHULIANG,YIJIANXIAOXINHAOCHUANSHUGUOCHENGZHONGDEYANCHIHESUNHAO;

- DUIYUTESHUDEYINGYONGCHANGJING,KEYIKAOLVCAIYONGZHUANYONGDECENGJIANLIANXIANJISHU,RUWEIDAIXIAN、JINSHUWANGGEDENG。

 

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