{"id":6563,"date":"2026-06-15T07:46:55","date_gmt":"2026-06-15T07:46:55","guid":{"rendered":"https:\/\/wiresawcutter.com\/?p=6563"},"modified":"2026-06-15T07:46:55","modified_gmt":"2026-06-15T07:46:55","slug":"silicon-carbide-mosfet","status":"publish","type":"post","link":"https:\/\/wiresawcutter.com\/zh\/blog\/silicon-carbide-mosfet\/","title":{"rendered":"\u78b3\u5316\u77fd MOSFET:\u70ba\u4ec0\u9ebc\u78b3\u5316\u77fd\u5728\u96fb\u529b\u96fb\u5b50\u9818\u57df\u53d6\u4ee3\u77fd"},"content":{"rendered":"
\n

A \u78b3\u5316\u77fd MOSFET<\/strong> \u662f\u4e00\u7a2e\u57fa\u65bc 4H-SiC \u6676\u5713\u800c\u4e0d\u662f\u77fd\u69cb\u5efa\u7684\u529f\u7387\u5834\u6548\u96fb\u6676\u9ad4,\u56e0\u6b64\u5b83\u53ef\u4ee5\u5728\u66f4\u8584\u7684\u5c64\u4e0a\u963b\u64cb\u6578\u767e\u81f3\u6578\u5343\u4f0f\u7279\u7684\u96fb\u58d3,\u5207\u63db\u901f\u5ea6\u66f4\u5feb,\u4e26\u4e14\u6bd4\u77fd MOSFET \u904b\u884c\u5f97\u66f4\u71b1\u3002\u9019\u7a2e\u55ae\u4e00\u6750\u6599\u4ea4\u63db\u5c31\u662f SiC MOSFET \u53d6\u4ee3\u96fb\u52d5\u8eca\u9006\u8b8a\u5668\u548c\u9ad8\u983b\u96fb\u6e90\u4e2d\u7684\u77fd IGBT \u7684\u539f\u56e0\u3002\u6211\u5011\u5f9e\u4e00\u500b\u4e0d\u5c0b\u5e38\u7684\u89d2\u5ea6\u4f86\u4e86\u89e3\u9019\u4e00\u9ede:\u6771\u548c\u88fd\u9020\u947d\u77f3 SiC\u6676\u5713\u5207\u5272\u92f8<\/a> \u88fd\u9020\u5207\u7247\u9019\u4e9b\u8a2d\u5099\u7684\u6676\u5713\u7684\u6a5f\u5668,\u56e0\u6b64\u6700\u5f8c\u4e00\u90e8\u5206\u5c07\u60a8\u8cfc\u8cb7\u7684\u6676\u7247\u9023\u63a5\u5230\u5b83\u958b\u59cb\u7684\u6676\u9320\u3002.<\/p>\n

\n

\u5feb\u901f\u898f\u683c:\u78b3\u5316\u77fd MOSFET \u8207\u77fd<\/h3>\n\n\n\n\n\n\n\n\n
\u6750\u8cea<\/td>\n4H-SiC(\u77fd+\u78b3\u5316\u5408\u7269)<\/td>\n<\/tr>\n
\u5e36\u9699<\/td>\n~3.26 eV(Si:~1.1 eV)<\/td>\n<\/tr>\n
\u95dc\u9375\u6545\u969c\u9818\u57df<\/td>\n~2.8 VAS3.0 MV\/cm (~10\u00d7 Si)<\/td>\n<\/tr>\n
\u5e38\u7528\u984d\u5b9a\u96fb\u58d3<\/td>\n650V\u30011200V\u30011700V\u30013.3kV+<\/td>\n<\/tr>\n
\u9580\u9a45\u52d5 (Vgs)<\/td>\n~+15 V \u958b\u555f \/0 \u81f3 -4 V \u95dc\u9589(\u7279\u5b9a\u65bc\u8cc7\u6599\u8868)<\/td>\n<\/tr>\n
\u6700\u5927\u7d50\u6eab<\/td>\n\u9ad8\u9054~175\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u4ec0\u9ebc\u662f\u78b3\u5316\u77fd MOSFET?<\/h2>\n

\"\u4ec0\u9ebc\u662f\u78b3\u5316\u77fd<\/p>\n

\u78b3\u5316\u77fd MOSFET \u662f\u4e00\u7a2e\u91d1\u5c6c\u6c27\u5316\u7269\u534a\u5c0e\u9ad4\u5834\u6548\u96fb\u6676\u9ad4,\u5b83\u4f7f\u7528\u78b3\u5316\u77fd (SiC) \u4f5c\u70ba\u534a\u5c0e\u9ad4\u6750\u6599,\u800c\u4e0d\u662f\u50b3\u7d71\u7684\u77fd\u3002\u5b83\u662f\u4e00\u500b \u55ae\u6975<\/em> \u8a2d\u5099:\u96fb\u6d41\u50c5\u6d41\u7d93\u591a\u6578\u8f09\u5b50(\u96fb\u5b50),\u6c92\u6709\u5132\u5b58\u5c11\u6578\u96fb\u8377\u5c3e\u90e8,\u56e0\u6b64\u53ef\u4ee5\u4e7e\u6de8\u5feb\u901f\u5730\u95dc\u9589\u3002\u5728\u529f\u80fd\u4e0a,\u5b83\u50cf\u4efb\u4f55\u529f\u7387 MOSFET \u4e00\u6a23\u5207\u63db,\u9598\u6975\u96fb\u58d3\u63a7\u5236\u6c72\u6975\u5230\u6e90\u6975\u901a\u9053,\u4f46 SiC \u6676\u9ad4\u8b93\u540c\u4e00\u500b\u6676\u7247\u80fd\u5920\u963b\u64cb\u66f4\u9ad8\u7684\u96fb\u58d3\u3002.<\/p>\n

\u70ba\u4ec0\u9ebc\u95dc\u5fc3\u5b9a\u7fa9?\u56e0\u70ba\u5c07SiC MOSFET \u8996\u70ba\u5d4c\u5165\u5f0f\u77fd\u96f6\u4ef6\u662f\u96fb\u529b\u8a2d\u8a08\u4e2d\u6700\u6602\u8cb4\u7684\u521d\u5b78\u8005\u932f\u8aa4:\u60a8\u8981\u4e48\u70ba\u5f9e\u672a\u4f7f\u7528\u904e\u7684\u963b\u585e\u96fb\u58d3\u548c\u6eab\u5ea6\u9918\u88d5\u4ed8\u8cbb,\u8981\u4e48\u7528\u932f\u8aa4\u7684\u9598\u6975\u96fb\u58d3\u9a45\u52d5\u5b83\u4e26\u70f9\u98ea\u4e00\u500b\u8a2d\u5099\u6210\u672c\u662f\u77fd\u7576\u91cf\u7684\u5e7e\u500d\u3002\u6a19\u7c64\u5728\u9019\u88e1\u5f88\u91cd\u8981\u3002.<\/p>\n

\u4e09\u500b\u7d50\u69cb\u4e8b\u5be6\u5c07\u5176\u8207\u77fd MOSFET \u5206\u958b\u3002\u9996\u5148,\u57fa\u677f\u548c\u6f02\u79fb\u5340\u57df\u662f 4H-SiC,\u4e00\u7a2e\u77fd\u548c\u78b3\u7684\u5316\u5408\u7269,\u800c\u4e0d\u662f\u7d14\u77fd\u3002\u5176\u6b21,\u7531\u65bc SiC \u53ef\u4ee5\u627f\u53d7\u66f4\u9ad8\u7684\u96fb\u5834,\u56e0\u6b64\u5c0d\u65bc\u7d66\u5b9a\u7684\u984d\u5b9a\u503c,\u96fb\u58d3\u963b\u64cb\u6f02\u79fb\u5c64\u8981\u8584\u5f97\u591a,\u5f9e\u800c\u964d\u4f4e\u4e86\u5c0e\u901a\u96fb\u963b\u3002\u7b2c\u4e09,\u5927\u591a\u6578\u9ad8\u96fb\u6d41 SiC MOSFET \u90fd\u6703\u6dfb\u52a0\u7b2c\u56db\u500b\u5f15\u8173(\u958b\u723e\u6587\u6e90),\u4ee5\u5c07\u9598\u6975\u9a45\u52d5\u5668\u8fd4\u56de\u8207\u96fb\u6e90\u8def\u5f91\u5206\u958b\u3002\u5982\u679c\u60a8\u60f3\u8981\u4e0a\u6e38\u5716\u7247,\u8acb\u53c3\u95b1\u6211\u5011\u7684\u5e95\u6f06 \u77fd\u7247\u6750\u6599<\/a> \u800c\u4e14\u66f4\u5ee3\u6cdb \u534a\u5c0e\u9ad4\u6676\u5713\u7684\u985e\u578b<\/a> \u7528\u65bc\u88fd\u9020\u9019\u4e9b\u8a2d\u5099\u3002.<\/p>\n

\u6750\u6599:\u70ba\u4ec0\u9ebc\u5bec\u983b\u9699 SiC \u6703\u6539\u8b8a\u898f\u5247<\/h2>\n

\"\u6750\u6599:\u70ba\u4ec0\u9ebc\u5bec\u983b\u9699<\/p>\n

\u8df3\u904e\u6750\u6599\u7269\u7406\u548c\u6bcf\u500b\u5f8c\u4f86\u7684\u6c7a\u7b56,\u96fb\u58d3\u7b49\u7d1a\u3001\u9598\u6975\u9a45\u52d5\u3001\u51b7\u537b,\u8b8a\u6210\u731c\u6e2c\u3002\u78b3\u5316\u77fd MOSFET \u512a\u65bc\u77fd\u7684\u539f\u56e0\u662f\u6750\u6599,\u800c\u4e0d\u662f\u96fb\u8def\u3002 SiC \u662f\u4e00\u7a2e\u5bec\u983b\u9699\u534a\u5c0e\u9ad4,\u5176\u7a81\u51fa\u7684\u7279\u6027\u662f\u81e8\u754c\u64ca\u7a7f\u5834\u5927\u7d04\u662f\u77fd\u7684\u5341\u500d\u3002\u6211\u5011\u7a31\u4e4b\u70ba\u7d50\u679c 10\u00d7\u5206\u89e3\u5834\u69d3\u687f<\/strong>:\u7531\u65bc SiC \u5728\u5206\u89e3\u524d\u53ef\u627f\u53d7\u7d04\u5341\u500d\u7684\u96fb\u5834,\u56e0\u6b64\u963b\u64cb\u984d\u5b9a\u96fb\u58d3\u7684\u6f02\u79fb\u5340\u57df\u7684\u539a\u5ea6\u7d04\u70ba\u5341\u5206\u4e4b\u4e00,\u800c\u6f02\u79fb\u5340\u57df\u8f03\u8584\u610f\u5473\u8457\u5728\u4ee5\u4e0b\u60c5\u6cc1\u4e0b\u5c0e\u901a\u96fb\u963b\u548c\u50b3\u5c0e\u640d\u8017\u986f\u8457\u964d\u4f4e:\u76f8\u540c\u7684\u963b\u585e\u96fb\u58d3\u3002.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
\u5bec\u5e36\u9699\u5c6c\u6027\u5206\u985e\u5e33:\u78b3\u5316\u77fd MOSFET \u5728\u5834\u548c\u6eab\u5ea6\u65b9\u9762\u7372\u52dd,\u800c\u4e0d\u662f\u5728\u96fb\u5b50\u9077\u79fb\u7387\u65b9\u9762\u7372\u52dd(\u5176\u4e2d SiC \u5be6\u969b\u4e0a\u4f4e\u65bc\u77fd)\u3002.<\/caption>\n
\u8ca1\u7522<\/th>\n\u77fd(si)<\/th>\n4h-sic<\/th>\n\u5b83\u8cb7\u4ec0\u9ebc<\/th>\n<\/tr>\n<\/thead>\n
\u5e36\u9699 (eV)<\/td>\n~1.1<\/td>\n~3.26<\/td>\n\u9ad8\u6eab\u4e0b\u6d29\u6f0f\u4f4e<\/td>\n<\/tr>\n
\u81e8\u754c\u5834(mv\/cm)<\/td>\n~0.3<\/td>\n~2.8 \u81f3 3.0<\/td>\n~10\u00d7 \u7a00\u758f\u6f02\u79fb \u2192 \u4f4e Rds(\u958b)<\/td>\n<\/tr>\n
\u5c0e\u71b1\u7387(w\/cm\u00b7k)<\/td>\n~1.5<\/td>\n~3.7 \u6bd4 4.9*<\/td>\n\u96fb\u6d41\u5bc6\u5ea6\u8f03\u9ad8,\u51b7\u537b\u8f03\u5bb9\u6613<\/td>\n<\/tr>\n
\u96fb\u5b50\u9077\u79fb\u7387(cm\u00b2\/V\u00b7s)<\/td>\n~1450<\/td>\n~900(\u4e0b)<\/td>\nSiC \u5728\u5176\u4ed6\u5730\u65b9\u514b\u670d\u4e86\u7f3a\u9ede<\/td>\n<\/tr>\n
\u98fd\u548c\u901f\u5ea6(\u516c\u5206\/\u79d2)<\/td>\n~1.0\u00d7107<\/td>\n~2.0\u00d7107<\/td>\n\u66f4\u5feb\u7684\u5207\u63db,\u66f4\u9ad8\u7684\u983b\u7387<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

*\u4e0d\u540c\u4f86\u6e90\u5c0d\u71b1\u5c0e\u7387\u7684\u5f15\u7528\u4e0d\u540c(\u5c0d\u65bc\u9ad8\u7d14\u5ea6 4H-SiC,\u901a\u5e38\u7d04\u70ba 3.7 W\/cm\u00b7K,\u9ad8\u9054 ~4.9 W\/cm\u00b7K);\u5b83\u96a8\u591a\u578b\u3001\u647b\u96dc\u548c\u6eab\u5ea6\u800c\u8b8a\u5316\u3002\u57fa\u7dda\u77fd\u81e8\u754c\u5834\u70ba\u6bcf 0.3 MV\/cm \u7dad\u5409\u5c3c\u4e9e\u7406\u5de5\u5927\u5b78\u5bec\u983b\u9699\u8a2d\u5099\u8a3b\u91cb<\/a>; SiC\u6750\u6599\u6027\u80fd NIH\/NCBI \u5c0d SiC \u96fb\u529b\u96fb\u5b50\u7522\u54c1\u7684\u5be9\u67e5<\/a>.<\/p>\n

\u78b3\u5316\u77fd\u7684\u5e36\u9699\u662f\u591a\u5c11?<\/h3>\n

4H-SiC \u7684\u5e36\u9699\u7d04\u70ba 3.26 eV,\u5e7e\u4e4e\u662f\u77fd ~1.1 eV \u7684\u4e09\u500d\u3002\u5e36\u9699\u662f\u96fb\u5b50\u8e8d\u9077\u5c0e\u901a\u6240\u9700\u7684\u80fd\u91cf,\u800c\u66f4\u5bec\u7684\u9593\u9699\u610f\u5473\u8457\u71b1\u6fc0\u767c\u7684\u8f09\u5b50\u8981\u5c11\u5f97\u591a,\u56e0\u6b64\u5728\u9ad8\u6eab\u904b\u884c\u671f\u9593\u6f0f\u96fb\u6d41\u4fdd\u6301\u8f03\u4f4e,\u9019\u5c31\u662f\u70ba\u4ec0\u9ebc\u78b3\u5316\u77fdMOSFET \u5728\u77fd\u88dd\u7f6e\u767c\u751f\u6545\u969c\u6642\u4fdd\u6301\u963b\u585e\u96fb\u58d3\u7684\u539f\u56e0\u3002.<\/p>\n

\u9019\u7a2e\u5de8\u5927\u7684\u9593\u9699\u4e5f\u662f SiC \u7684\u9ad4\u4e8c\u6975\u9ad4\u5177\u6709\u9ad8\u6b63\u5411\u96fb\u58d3\u964d\u7684\u539f\u56e0,\u6211\u5011\u56de\u5230\u4e0b\u9762\u7684\u6b0a\u8861\u3002\u91cd\u8981\u7684\u662f,SiC \u78ba\u5be6\u5982\u6b64 \u4e0d\u662f<\/em> \u8d0f\u96fb\u5b50\u9077\u79fb\u7387;\u5b83\u7684\u6574\u9ad4\u9077\u79fb\u7387\u5be6\u969b\u4e0a\u4f4e\u65bc\u77fd,\u5176\u512a\u52e2\u4f86\u81ea\u65bc\u5834\u5f37\u3001\u5c0e\u71b1\u7387\u548c\u98fd\u548c\u901f\u5ea6\u3002.<\/p>\n

SiC MOSFET \u8207\u77fd MOSFET:\u6536\u76ca\u5f9e\u4f55\u800c\u4f86<\/h2>\n

\"SiC<\/p>\n

\u8207\u77fd MOSFET \u76f8\u6bd4,SiC MOSFET \u5728\u56db\u500b\u53ef\u6e2c\u91cf\u65b9\u9762\u7372\u52dd:\u9ad8\u58d3\u4e0b\u8f03\u4f4e\u7684\u5c0e\u901a\u96fb\u963b\u3001\u8f03\u4f4e\u7684\u958b\u95dc\u640d\u8017\u3001\u66f4\u591a\u7684\u71b1\u9918\u88d5\u548c\u66f4\u5c0f\u7684\u88ab\u52d5\u5143\u4ef6\u3002\u7f8e\u570b\u80fd\u6e90\u90e8\u6e2c\u91cf\u4e86 SiC \u9006\u8b8a\u5668\u7684\u9054\u5230 99% \u6548\u7387\u8207\u540c\u985e\u77fd\u9006\u8b8a\u5668\u7684 96% \u76f8\u6bd4,\u7bc0\u80fd\u7d04 3%<\/strong> \u626e\u6f14\u540c\u6a23\u7684\u89d2\u8272,\u6839\u64da\u5b83\u7684 \u96fb\u529b\u96fb\u5b50\u5bec\u983b\u9699\u534a\u5c0e\u9ad4\u5831\u544a<\/a>.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
1200 V \u7d1a\u77fd MOSFET \u8207\u78b3\u5316\u77fd MOSFET:SiC \u4ee5\u66f4\u9ad8\u7684\u8a2d\u5099\u50f9\u683c\u63db\u53d6\u66f4\u4f4e\u7684\u7cfb\u7d71\u6210\u672c\u3002.<\/caption>\n
\u53c3\u6578<\/th>\n\u77fd MOSFET<\/th>\nSiC MOSFET<\/th>\n<\/tr>\n<\/thead>\n
\u5be6\u7528\u7684\u9ad8\u58d3\u9650\u5236<\/td>\n\u77fd\u8b8a\u5f97\u4f4e\u6548\u7387\u4e4b\u524d~900 V<\/td>\n\u5e38\u898f\u96fb\u58d3\u70ba 650 V \u81f3 3.3 kV+<\/td>\n<\/tr>\n
Rds(\u958b)\u8207\u6eab\u5ea6<\/td>\n25\u00b0C\u2192140\u00b0C\u53ef\u52a0\u500d\u6216\u4e09\u500d<\/td>\n\u50c5\u4e0a\u5347~1.3\u00d71.4\u00d7<\/td>\n<\/tr>\n
\u5207\u63db\u640d\u8017\/\u983b\u7387<\/td>\n\u640d\u8017\u8d8a\u9ad8,\u983b\u7387\u8d8a\u4f4e<\/td>\n\u4f4e\u640d\u8017\u3001\u9ad8\u958b\u95dc\u983b\u7387<\/td>\n<\/tr>\n
\u9ad4\u4e8c\u6975\u9ad4\u96fb\u58d3\u964d<\/td>\n~0.7V<\/td>\n~4 V(\u5bec\u983b\u9593\u9699\u61f2\u7f70)<\/td>\n<\/tr>\n
\u76f8\u5c0d\u8a2d\u5099\u6210\u672c<\/td>\n\u8f03\u4f4e\u7684<\/td>\n\u66f4\u9ad8(\u6bcf\u500b\u8a2d\u5099)<\/td>\n<\/tr>\n
\u76f8\u5c0d\u7cfb\u7d71\u6210\u672c<\/td>\n\u57fa\u7dda<\/td>\n\u901a\u5e38\u8f03\u4f4e(\u8f03\u5c0f\u7684\u78c1\u6027 + \u51b7\u537b)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u6700\u5f8c\u4e00\u884c\u662f\u8cb7\u5bb6\u5012\u9000\u7684\u90e8\u5206\u3002\u6211\u5011\u7a31\u4e4b\u70ba \u8a2d\u5099\u5230\u7cfb\u7d71\u6210\u672c\u7684\u53cd\u8f49<\/strong>:SiC \u6676\u7247\u7684\u6210\u672c\u5e7e\u4e4e\u7e3d\u662f\u6bd4\u77fd\u96f6\u4ef6\u9ad8,\u4f46\u8a2d\u8a08\u6b63\u78ba,\u96fb\u58d3\u9ad8,\u958b\u95dc\u983b\u7387\u9ad8,\u6548\u7387\u9a45\u52d5 \u7cfb\u7d71<\/em> \u6210\u672c\u53ef\u4ee5\u66f4\u4f4e,\u56e0\u70ba\u66f4\u5feb\u7684\u958b\u95dc\u6703\u6536\u7e2e\u8b8a\u58d3\u5668\u3001\u96fb\u611f\u5668\u548c\u96fb\u5bb9\u5668,\u800c\u66f4\u9ad8\u7684\u6548\u7387\u6703\u5207\u65b7\u6563\u71b1\u5668\u3002\u9019\u662f\u6709\u689d\u4ef6\u7684,\u800c\u4e0d\u662f\u81ea\u52d5\u7684\u3002\u5728\u4f4e\u58d3\u3001\u6210\u672c\u654f\u611f\u7684 48 V \u8a2d\u8a08\u4e2d,\u4e0d\u6703\u51fa\u73fe\u53cd\u8f49,\u77fd\u96f6\u4ef6\u7372\u52dd\u3002\u5c07\u5176\u8996\u70ba\u8a2d\u8a08\u554f\u984c,\u800c\u4e0d\u662f\u53e3\u865f\u3002.<\/p>\n

\n
\u512a\u52e2<\/strong><\/p>\n