{"id":3262,"date":"2021-08-15T02:19:59","date_gmt":"2021-08-15T02:19:59","guid":{"rendered":""},"modified":"2021-08-15T10:20:31","modified_gmt":"2021-08-15T02:20:31","slug":"%e6%90%9e%e6%87%82mos%e7%ae%a1%ef%bc%9amos%e7%ae%a1%e7%9a%84%e5%8d%8a%e5%af%bc%e4%bd%93%e7%bb%93%e6%9e%84","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=3262","title":{"rendered":"\u641e\u61c2MOS\u7ba1\uff1aMOS\u7ba1\u7684\u534a\u5bfc\u4f53\u7ed3\u6784"},"content":{"rendered":"
\n\tMOS \u7ba1\u4f5c\u4e3a\u534a\u5bfc\u4f53\u9886\u57df\u6700\u57fa\u7840\u7684\u5668\u4ef6\u4e4b\u4e00\uff0c\u65e0\u8bba\u662f\u5728IC \u8bbe\u8ba1\u91cc\uff0c\u8fd8\u662f\u677f\u7ea7\u7535\u8def<\/u>\u5e94\u7528\u4e0a\uff0c\u90fd\u5341\u5206\u5e7f\u6cdb\u3002<\/p>\n
\n\t\u76ee\u524d\u5c24\u5176\u5728\u5927\u529f\u7387\u534a\u5bfc\u4f53\u9886\u57df\uff0c\u5404\u79cd\u7ed3\u6784\u7684 MOS \u7ba1\u66f4\u662f\u53d1\u6325\u7740\u4e0d\u53ef\u66ff\u4ee3\u7684\u4f5c\u7528\u3002\u4f5c\u4e3a\u4e00\u4e2a\u57fa\u7840\u5668\u4ef6\uff0c\u5f80\u5f80\u96c6\u7b80\u5355\u4e0e\u590d\u6742\u4e0e\u4e00\u8eab\uff0c\u7b80\u5355\u5728\u4e8e\u5b83\u7684\u7ed3\u6784\uff0c\u590d\u6742\u5728\u4e8e\u57fa\u4e8e\u5e94\u7528\u7684\u6df1\u5165\u8003\u91cf\u3002<\/p>\n
\n\t\u56e0\u6b64\uff0c\u4f5c\u4e3a\u786c\u4ef6\u5f00\u53d1\u8005\uff0c\u60f3\u5728\u7535\u8def\u8bbe\u8ba1\u4e0a\u8fdb\u9636\uff0c\u641e\u61c2 MOS \u7ba1\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u4e00\u6b65\uff0c\u4eca\u5929\u6765\u804a\u804a\u3002<\/p>\n
\n\t\u4e00\u3001 MOS\u7ba1\u7684\u534a\u5bfc\u4f53\u7ed3\u6784<\/p>\n
\n\t\u4f5c\u4e3a\u534a\u5bfc\u4f53\u5668\u4ef6\uff0c\u5b83\u7684\u6765\u6e90\u8fd8\u662f\u6700\u539f\u59cb\u7684\u6750\u6599\uff0c\u63ba\u6742\u534a\u5bfc\u4f53\u5f62\u6210\u7684 P \u548c N \u578b\u7269\u8d28\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u90a3\u4e48\uff0c\u5728\u534a\u5bfc\u4f53\u5de5\u827a\u91cc\uff0c\u5982\u4f55\u5236\u9020 MOS \u7ba1\u7684\uff1f<\/p>\n
\n\t<\/p>\n
\n\t\u8fd9\u5c31\u662f\u4e00\u4e2a NMOS \u7684\u7ed3\u6784\u7b80\u56fe\uff0c\u4e00\u4e2a\u770b\u8d77\u6765\u5f88\u7b80\u5355\u7684\u4e09\u7aef\u5143\u5668\u4ef6<\/u>\u3002\u5177\u4f53\u7684\u5236\u9020\u8fc7\u7a0b\u5c31\u50cf\u642d\u5efa\u79ef\u6728\u4e00\u6837\uff0c\u5728\u4e00\u5b9a\u7684\u5730\u57fa\uff08\u886c\u5e95\uff09\u4e0a\u4f9d\u636e\u8bbe\u8ba1\u4e00\u6b65\u6b65“\u76d6”\u8d77\u6765\u3002<\/p>\n
\n\t<\/p>\n
\n\tMOS \u7ba1\u7684\u7b26\u53f7\u63cf\u8ff0\u4e3a\uff1a<\/p>\n
\n\t<\/p>\n
\n\t\u4e8c\u3001 MOS\u7ba1\u7684\u5de5\u4f5c\u673a\u5236<\/p>\n
\n\t\u4ee5\u589e\u5f3a\u578b MOS \u7ba1\u4e3a\u4f8b\uff0c\u6211\u4eec\u5148\u7b80\u5355\u6765\u770b\u4e0b MOS \u7ba1\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n
\n\t\u7531\u4e0a\u56fe\u7ed3\u6784\u6211\u4eec\u53ef\u4ee5\u770b\u5230 MOS \u7ba1\u7c7b\u4f3c\u4e09\u6781\u7ba1<\/u>\uff0c\u4e5f\u662f\u80cc\u9760\u80cc\u7684\u4e24\u4e2aPN\u7ed3<\/u>\uff01\u4e09\u6781\u7ba1\u7684\u539f\u7406\u662f\u5728\u504f\u7f6e\u7684\u60c5\u51b5\u4e0b\u6ce8\u5165\u7535\u6d41<\/u>\u5230\u5f88\u8584\u7684\u57fa\u533a\u901a\u8fc7\u7535\u5b50-\u7a7a\u7a74\u590d\u5408\u6765\u63a7\u5236CE\u4e4b\u95f4\u7684\u5bfc\u901a\uff0cMOS \u7ba1\u5219\u5229\u7528\u7535\u573a\u6765\u5728\u6805\u6781\u5f62\u6210\u8f7d\u6d41\u5b50\u6c9f\u9053\u6765\u6c9f\u901aDS\u4e4b\u95f4\u3002<\/p>\n
\n\t<\/p>\n
\n\t\u5982\u4e0a\u56fe\uff0c\u5728\u5f00\u542f\u7535\u538b\u4e0d\u8db3\u65f6\uff0cN\u533a\u548c\u886c\u5e95P\u4e4b\u95f4\u56e0\u4e3a\u8f7d\u6d41\u5b50\u7684\u81ea\u7136\u590d\u5408\u4f1a\u5f62\u6210\u4e00\u4e2a\u4e2d\u6027\u7684\u8017\u5c3d\u533a\u3002<\/p>\n
\n\t\u7ed9\u6805\u6781\u63d0\u4f9b\u6b63\u5411\u7535\u538b\u540e\uff0cP\u533a\u7684\u5c11\u5b50\uff08\u7535\u5b50\uff09\u4f1a\u5728\u7535\u573a\u7684\u4f5c\u7528\u4e0b\u805a\u96c6\u5230\u6805\u6781\u6c27\u5316<\/u>\u7845\u4e0b\uff0c\u6700\u540e\u4f1a\u5f62\u6210\u4e00\u4e2a\u4ee5\u7535\u5b50\u4e3a\u591a\u5b50\u7684\u533a\u57df\uff0c\u53eb\u53cd\u578b\u5c42\uff0c\u79f0\u4e3a\u53cd\u578b\u56e0\u4e3a\u662f\u5728P\u578b\u886c\u5e95\u533a\u5f62\u6210\u4e86\u4e00\u4e2aN\u578b\u6c9f\u9053\u533a\u3002\u8fd9\u6837DS\u4e4b\u95f4\u5c31\u5bfc\u901a\u4e86\u3002<\/p>\n
\n\t\u4e0b\u56fe\u662f\u4e00\u4e2a\u7b80\u5355\u7684MOS\u7ba1\u5f00\u542f\u6a21\u62df\uff1a<\/p>\n
\n\t<\/p>\n
\n\t<\/p>\n
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\n\t<\/p>\n
\n\t\u4e0b\u9762\u6211\u4eec\u5148\u4ece\u5668\u4ef6\u7ed3\u6784\u7684\u89d2\u5ea6\u770b\u4e00\u4e0bMOS\u7ba1\u7684\u5f00\u542f\u5168\u8fc7\u7a0b\u3002<\/p>\n
\n\t1\u3001Vgs\u5bf9MOS\u7ba1\u7684\u5f00\u542f\u4f5c\u7528<\/p>\n
\n\t<\/p>\n
\n\t\u4e00\u5b9a\u8303\u56f4\u5185 Vgs>Vth\uff0cVds \n\tVgs\u4e3a\u5e38\u6570\u65f6\uff0cVds\u4e0a\u5347\uff0cId\u8fd1\u4f3c\u7ebf\u6027\u4e0a\u5347\uff0c\u8868\u73b0\u4e3a\u4e00\u79cd\u7535\u963b<\/u>\u7279\u6027\u3002<\/p>\n \n\tVds\u4e3a\u5e38\u6570\u65f6\uff0cVgs\u4e0a\u5347\uff0cId\u8fd1\u4f3c\u7ebf\u6027\u4e0a\u5347\uff0c\u8868\u73b0\u51fa\u4e00\u79cd\u538b\u63a7\u7535\u963b\u7684\u7279\u6027\u3002<\/p>\n \n\t\u5373\u66f2\u7ebf\u5de6\u8fb9<\/p>\n \n\t<\/p>\n \n\t2\u3001Vds\u5bf9MOS\u7ba1\u6c9f\u9053\u7684\u63a7\u5236<\/p>\n \n\t<\/p>\n \n\t\u5f53Vgs>Vth\uff0cVds \n\t\u5f53Vds>Vgs-Vth\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u56e0\u4e3aDS\u4e4b\u95f4\u7684\u7535\u573a\u5f00\u59cb\u5bfc\u81f4\u53f3\u4fa7\u7684\u6c9f\u9053\u53d8\u7a84\uff0c\u7535\u963b\u53d8\u5927\u3002\u6240\u4ee5\u7535\u6d41Id\u589e\u52a0\u5f00\u59cb\u53d8\u7f13\u6162\u3002\u5f53Vds\u589e\u5927\u4e00\u5b9a\u7a0b\u5ea6\u540e\uff0c\u53f3\u6c9f\u9053\u88ab\u5b8c\u5168\u5939\u65ad\u4e86\uff01<\/p>\n \n\t<\/p>\n \n\t\u6b64\u65f6DS\u4e4b\u95f4\u7684\u7535\u538b\u90fd\u5206\u5e03\u5728\u9760\u8fd1D\u7aef\u7684\u5939\u65ad\u8017\u5c3d\u533a\uff0c\u5939\u65ad\u533a\u7684\u589e\u5927\u5373\u6c9f\u9053\u5bbd\u5ea6W\u51cf\u5c0f\u5bfc\u81f4\u7684\u7535\u963b\u589e\u5927\u62b5\u6d88\u4e86Vds\u5bf9Id\u7684\u6b63\u5411\u4f5c\u7528\uff0c\u56e0\u6b64\u5bfc\u81f4\u7535\u6d41Id\u51e0\u4e4e\u4e0d\u518d\u968fVds\u589e\u52a0\u800c\u53d8\u5316\u3002\u6b64\u65f6\u7684D\u7aef\u8f7d\u6d41\u5b50\u662f\u5728\u5f3a\u7535\u573a\u7684\u4f5c\u7528\u4e0b\u626b\u8fc7\u8017\u5c3d\u533a\u8fbe\u5230S\u7aef\uff01<\/p>\n \n\t<\/p>\n \n\t\u8fd9\u4e2a\u533a\u57df\u4e3a MOS \u7ba1\u7684\u6052\u6d41\u533a\uff0c\u4e5f\u53eb\u9971\u548c\u533a\uff0c\u653e\u5927\u533a\u3002<\/p>\n \n\t\u4f46\u662f\u56e0\u4e3a\u6709\u6c9f\u9053\u8c03\u5236\u6548\u5e94\u5bfc\u81f4\u6c9f\u9053\u957f\u5ea6 L \u6709\u53d8\u5316\uff0c\u6240\u4ee5\u66f2\u7ebf\u7a0d\u5fae\u4e0a\u7fd8\u4e00\u70b9\u3002<\/p>\n \n\t\u91cd\u70b9\u5907\u6ce8\uff1aMOS\u7ba1\u4e0e\u4e09\u6781\u7ba1\u7684\u5de5\u4f5c\u533a\u5b9a\u4e49\u5dee\u522b<\/p>\n \n\t\u4e09\u6781\u7ba1\u7684\u9971\u548c\u533a\uff1a\u8f93\u51fa\u7535\u6d41 Ic \u4e0d\u968f\u8f93\u5165\u7535\u6d41 Ib \u53d8\u5316\u3002<\/p>\n \n\tMOS \u7ba1\u7684\u9971\u548c\u533a\uff1a\u8f93\u51fa\u7535\u6d41 Id \u4e0d\u968f\u8f93\u51fa\u7535\u538b Vds \u53d8\u5316\u3002<\/p>\n \n\t<\/p>\n \n\t<\/p>\n \n\t<\/p>\n \n\t3\u3001\u51fb\u7a7f<\/u><\/p>\n \n\tVgs \u8fc7\u5927\u4f1a\u5bfc\u81f4\u6805\u6781\u5f88\u8584\u7684\u6c27\u5316\u5c42\u88ab\u51fb\u7a7f\u635f\u574f\u3002<\/p>\n \n\tVds \u8fc7\u5927\u4f1a\u5bfc\u81f4D\u548c\u886c\u5e95\u4e4b\u95f4\u7684\u53cd\u5411PN\u7ed3\u96ea\u5d29\u51fb\u7a7f\uff0c\u5927\u7535\u6d41\u76f4\u63a5\u6d41\u5165\u886c\u5e95\u3002<\/p>\n \n\t\u4e09\u3001 MOS\u7ba1\u7684\u5f00\u5173<\/u>\u8fc7\u7a0b\u5206\u6790<\/p>\n \n\t\u5982\u679c\u8981\u8fdb\u4e00\u6b65\u4e86\u89e3MOS\u7ba1\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u5256\u6790MOS\u7ba1\u7531\u622a\u6b62\u5230\u5f00\u542f\u7684\u5168\u8fc7\u7a0b\uff0c\u5fc5\u987b\u5efa\u7acb\u4e00\u4e2a\u5b8c\u6574\u7684\u7535\u8def\u7ed3\u6784\u6a21\u578b\uff0c\u5f15\u5165\u5bc4\u751f\u53c2\u6570\uff0c\u5982\u4e0b\u56fe\u3002<\/p>\n \n\t<\/p>\n \n\t\u8be6\u7ec6\u5f00\u542f\u8fc7\u7a0b\u4e3a\uff1a<\/p>\n \n\t<\/p>\n \n\tt0~t1\u9636\u6bb5\uff1a\u6805\u6781\u7535\u6d41\u5bf9Cgs\u548cCgd\u5145\u7535\uff0cVgs\u4e0a\u5347\u5230\u5f00\u542f\u7535\u538bVgs(th)\uff0c\u6b64\u95f4\uff0cMOS\u6ca1\u6709\u5f00\u542f\uff0c\u65e0\u7535\u6d41\u901a\u8fc7\uff0c\u5373MOS\u7ba1\u7684\u622a\u6b62\u533a\u3002\u5728\u8fd9\u4e2a\u9636\u6bb5\uff0c\u663e\u7136Vd\u7535\u538b\u5927\u4e8eVg\uff0c\u53ef\u4ee5\u7406\u89e3\u4e3a\u7535\u5bb9<\/u> Cgd \u4e0a\u6b63\u4e0b\u8d1f\u3002<\/p>\n \n\t<\/p>\n 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\n\t\u7c73\u52d2\u6548\u5e94\u5982\u4f55\u4ea7\u751f\u7684\uff1a<\/p>\n \n\t\u5728\u653e\u5927\u533a\u7684 MOS\u7ba1\uff0c\u7c73\u52d2\u7535\u5bb9\u8de8\u63a5\u5728\u8f93\u5165\u548c\u8f93\u51fa\u4e4b\u95f4\uff0c\u4e3a\u8d1f\u53cd\u9988\u4f5c\u7528\u3002\u5177\u4f53\u53cd\u9988\u8fc7\u7a0b\u4e3a\uff1aVgs\u589e\u5927>mos\u5f00\u542f\u540eVds\u5f00\u59cb\u4e0b\u964d>\u56e0\u4e3a\u7c73\u52d2\u7535\u5bb9\u53cd\u9988\u5bfc\u81f4Vgs\u4e5f\u4f1a\u901a\u8fc7Cgd\u653e\u7535\u4e0b\u964d\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u56e0\u4e3a\u6709\u5916\u90e8\u6805\u6781\u9a71\u52a8\u7535\u6d41\uff0c\u6240\u4ee5\u624d\u4f1a\u4fdd\u6301\u4e86Vgs\u4e0d\u53d8\uff0c\u800cVds\u8fd8\u5728\u4e0b\u964d\u3002<\/p>\n \n\t<\/p>\n 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