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rel="nofollow" target="_blank" style="color:#ACACAC">旺材芯片</a></span> <span>時(shí)間：2022-07-04</span> <span>來(lái)源：工程師</span> <span style="float:right; display:block; width:70px; text-align:center; font-size:12px; line-height:18px; height:20px; background:#fdfdfd; border:#e89015 solid 1px; border-radius:3px; color:#333;margin-right: 0px;"><a target="_blank">發(fā)布文章</a></span> </div> <div id="ym0kyvf" class="hAd4">  </div> <div id="xliwgqn" class="hAd5">  </div> <div id="q0kh9b0" class="hAd9">  </div> <div style="margin-top:28px;"></div> <div id="f4a9gq5" class="content" id="contentDiv" style="position:relative;"> <div id="focmjtd" class="ad_300x180" style="float:left;margin-right:20px;margin-bottom:10px;">  </div> <span id="contentlabels" style="font-size:14px;"><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(34, 34, 34); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", 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visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(136, 136, 136); font-size: 12px; letter-spacing: 0.5px; text-align: justify; visibility: visible;"><br /></span></p><p style="margin-top: 0px; margin-bottom: 0em; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; font-size: 17px; white-space: normal; background-color: rgb(255, 255, 255); color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; text-align: center; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><img class="rich_pages wxw-img" src="http://editerupload.eepw.com.cn/fetch/202207/2a04af3e2e9229196bc11fcf22b113da.png" alt="圖片" /></p><p></p><p style="margin-top: 15px; margin-bottom: 15px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; line-height: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">翠展微電子內部人士認為，“SiC的材料性能比Si基更好，要等它的成本下降到足夠低的時(shí)候才會(huì )普及，我們預計，SiC的成本下降至Si基成本的2倍左右，整個(gè)系統的成本也會(huì )降下來(lái)?！?/p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br /></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 119, 255); visibility: visible;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">作者</span></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 119, 255); visibility: visible;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;">｜Andy 校對｜日新</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; text-align: center; line-height: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 119, 255); visibility: visible;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br /></span></strong></span></p><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px; visibility: visible;">集微網(wǎng)消息，功率器件作為汽車(chē)電動(dòng)化的重要增量器件，近年來(lái)受益下游市場(chǎng)景氣快速增長(cháng)，其中，IGBT與SiC分別作為第二代、第三代功率器件的代表，兩者的上車(chē)之爭從未停歇，相比IGBT，SiC在寬禁帶、擊穿電場(chǎng)、熱導率以及工作溫度等方面擁有明顯優(yōu)勢，取代IGBT似乎正成為新趨勢，部分有實(shí)力的主機廠(chǎng)已在同時(shí)布局IGBT與SiC車(chē)型。<br /></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">不過(guò)SiC也存在一些不足，“單講技術(shù)的話(huà)，我們可以在實(shí)驗室研究很先進(jìn)的技術(shù)、很先進(jìn)的材料，但從做生意的角度看，撇開(kāi)成本是沒(méi)法談（SiC）商業(yè)前景及未來(lái)市場(chǎng)，成本太高是無(wú)法落地的?！贝湔刮㈦娮觾炔咳耸?，“SiC的材料性能比Si基更好，要等它的成本下降到足夠低的時(shí)候才會(huì )普及，我們預計，SiC的成本下降至Si基成本的2倍左右，整個(gè)SiC電驅系統的價(jià)值才能得到提升?！?/span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); font-family: sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-weight: 400; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 0, 0); font-family: sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif;"></strong></strong></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-weight: 400; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 0, 0); font-family: sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; line-height: 32px; letter-spacing: 1px; color: rgb(0, 119, 255); min-height: 0px; font-size: 20px; background-image: none; background-clip: border-box; background-position: 0% 0%; background-repeat: repeat; background-size: auto; border-width: 0px; border-style: none; border-color: rgb(0, 119, 255); bottom: auto; height: auto; left: auto; max-height: none; min-width: 0px; text-decoration-style: solid; text-decoration-color: rgb(0, 119, 255); top: auto; z-index: auto; visibility: visible; clear: none;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 15px; letter-spacing: normal; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-weight: 400; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 0, 0); font-family: sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; line-height: 32px; letter-spacing: 1px; color: rgb(0, 119, 255); min-height: 0px; font-size: 20px; background-image: none; background-clip: border-box; background-position: 0% 0%; background-repeat: repeat; background-size: auto; border-width: 0px; border-style: none; border-color: rgb(0, 119, 255); bottom: auto; height: auto; left: auto; max-height: none; min-width: 0px; text-decoration-style: solid; text-decoration-color: rgb(0, 119, 255); top: auto; z-index: auto; visibility: visible; clear: none;">SiC上車(chē)提速</span></strong></strong></strong></strong></strong></span></strong></strong></strong></span></strong></strong></strong></strong></strong></span></strong></strong></strong></strong></strong></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">SiC為第三代半導體代表之一，在寬禁帶、擊穿電場(chǎng)、熱導率以及工作溫度等4大關(guān)鍵指標上較Si基材料具有明顯優(yōu)勢，英飛凌認為，SiC的禁帶比Si大3倍，可轉化為10倍的擊穿電場(chǎng)；熱導率也是Si的3倍，支持200℃高溫工作，而Si為150℃，SiC更適于在車(chē)載等惡劣環(huán)境下工作，因此，SiC被認為是功率器件中Si的極佳替代材料。</span><img class="rich_pages wxw-img" src="http://editerupload.eepw.com.cn/fetch/202207/99d4cead545fbc26a8890f353358d594.png" alt="圖片" /><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">SiC及Si基材料4大關(guān)鍵性能比較（來(lái)源：英飛凌）</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">據PSIC論壇披露數據，與IGBT相比，SiC器件體積可縮小到IGBT的1/3以上，重量也可減少40%以上，且不同工況下SiC功耗降幅達60%以上。業(yè)內人士認為，IGBT換成SiC可以提高3-8%的逆變器效率，“未來(lái)SiC將會(huì )替代IGBT，這是發(fā)展趨勢?！蓖ｋ妱?dòng)項目總工劉波也表示，采用SiC器件的車(chē)型能獲得3%-5%的續航里程提升。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">需指出的是，電動(dòng)汽車(chē)的快充以及長(cháng)續航需求也在推進(jìn)SiC器件加快發(fā)展。補能時(shí)間長(cháng)、里程焦慮仍是目前影響電動(dòng)車(chē)消費的因素之一，由于IGBT耐壓能力相對有限，主流快充平臺電壓多為400V，要實(shí)現更短時(shí)間完成補能，800V、1200V充電平臺已成為新的研究與應用方向，而SiC更強的耐壓能力，正讓其成為未來(lái)高壓充電平臺的新選擇。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">市場(chǎng)分析咨詢(xún)機構Yole認為，在電動(dòng)車(chē)市場(chǎng)的強勁驅動(dòng)下，未來(lái)幾年SiC市場(chǎng)呈現高增長(cháng)趨勢，SiC器件市場(chǎng)規模也將從2021年的10億美元增長(cháng)至2027年的70億美元，并帶動(dòng)SiC產(chǎn)業(yè)鏈企業(yè)迎來(lái)營(yíng)收的高增長(cháng)期。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">據了解，目前已有特斯拉Model 3、比亞迪漢、蔚來(lái)ES7/ET7/ET5、小鵬G9、Smart精靈、五菱凱捷混合動(dòng)力版和五菱星辰混動(dòng)版等車(chē)型在使用或嘗試采用SiC器件，在逆變器、車(chē)載充電機（OBC）、DC/DC轉換器等部件中得到應用。三安光電副總經(jīng)理陳東坡認為，2023年－2024年，長(cháng)續航里程車(chē)型基本都會(huì )導入SiC器件，滲透率或將達40%。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">受益市場(chǎng)景氣驅動(dòng)，國內SiC產(chǎn)業(yè)鏈企業(yè)近年來(lái)不斷加大技術(shù)及市場(chǎng)布局，進(jìn)入2022年以來(lái)，SiC領(lǐng)域相關(guān)市場(chǎng)動(dòng)態(tài)明顯增多，其中，環(huán)旭電子SiC逆變器已開(kāi)始量產(chǎn)出貨；威睿電動(dòng)所發(fā)布的200kW SiC電驅動(dòng)總成已于6月21日下線(xiàn)；比亞迪半導體推出全新1200V 1040A SiC功率模塊；芯塔電子完成數千萬(wàn)元天使輪融資，發(fā)力車(chē)規級SiC MOSFET國產(chǎn)化；芯粵能加快推進(jìn)24萬(wàn)片6英寸和24萬(wàn)片8英寸SiC晶圓芯片項目，預計明年5月底投產(chǎn)；主攻動(dòng)力電池的寧德時(shí)代也以投資重投天科的方式進(jìn)入SiC領(lǐng)域；華潤微、三安光電、斯達半導、欣銳科技、東尼電子、新潔能等企業(yè)同樣在加快SiC相關(guān)技術(shù)及產(chǎn)品儲備。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); font-family: sans-serif; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-weight: 400; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 0, 0); font-family: sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif;"><img class="rich_pages wxw-img" src="http://editerupload.eepw.com.cn/fetch/202207/06ec0f8ccc6dd0115f6318f1bcf1c88f.png" alt="圖片" /></strong></strong></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-weight: 400; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 0, 0); font-family: sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; line-height: 32px; letter-spacing: 1px; color: rgb(0, 119, 255); min-height: 0px; font-size: 20px; background-image: none; background-clip: border-box; background-position: 0% 0%; background-repeat: repeat; background-size: auto; border-width: 0px; border-style: none; border-color: rgb(0, 119, 255); bottom: auto; height: auto; left: auto; max-height: none; min-width: 0px; text-decoration-style: solid; text-decoration-color: rgb(0, 119, 255); top: auto; z-index: auto; visibility: visible; clear: none;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 15px; letter-spacing: normal; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(51, 51, 51); font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-weight: 400; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(0, 0, 0); font-family: sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; color: rgb(34, 34, 34); font-family: PingFangSC-Regular, "Helvetica Neue", Helvetica, "Microsoft Yahei", Arial, "Hiragino Sans GB", tahoma, SimSun, sans-serif;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; line-height: 32px; letter-spacing: 1px; color: rgb(0, 119, 255); min-height: 0px; font-size: 20px; background-image: none; background-clip: border-box; background-position: 0% 0%; background-repeat: repeat; background-size: auto; border-width: 0px; border-style: none; border-color: rgb(0, 119, 255); bottom: auto; height: auto; left: auto; max-height: none; min-width: 0px; text-decoration-style: solid; text-decoration-color: rgb(0, 119, 255); top: auto; z-index: auto; visibility: visible; clear: none;">成本過(guò)高仍是最大阻力</span></strong></strong></strong></strong></strong></span></strong></strong></strong></span></strong></strong></strong></strong></strong></span></strong></strong></strong></strong></strong></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">事實(shí)上，SiC在半導體領(lǐng)域的應用可追溯到上世紀中葉，而Cree自1987年成立以來(lái)，一直在推動(dòng)SiC功率器件技術(shù)的發(fā)展，但相較Si基產(chǎn)品來(lái)說(shuō)，SiC發(fā)展始終較為緩慢。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">Si基是目前半導體領(lǐng)域成熟且高效的材料，擁有成熟的商業(yè)環(huán)境以及齊全的產(chǎn)業(yè)配套，帶來(lái)了較低的使用成本。有研硅招股書(shū)顯示，2021年6英寸、8英寸Si基拋光片的價(jià)格大約分別為89元/片、210元/片；而SiC襯底價(jià)格高昂，Wolfspeed等多方機構數據顯示，4吋SiC襯底的價(jià)格在2000-3000元/片，6吋價(jià)格則在6000元－8000元/片，相同尺寸下，SiC襯底的價(jià)格是Si基拋光片的30倍，且全球約7成SiC襯底產(chǎn)能掌控在Cree手中。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">即便單片SiC襯底可以制造更多芯片，但生產(chǎn)為成品后，SiC器件的價(jià)格也比IGBT高出很多，業(yè)內人士表示，“SiC MOSFET價(jià)格是同級別IGBT的8倍以上，成本過(guò)高，是造成SiC推廣難的重要原因?！贝湔刮㈦娮觾炔咳耸恳渤窒嗤^(guān)點(diǎn)，其認為，“單講技術(shù)的話(huà)，我們可以在實(shí)驗室研究很先進(jìn)的技術(shù)、很先進(jìn)的材料，但從做生意的角度看，撇開(kāi)成本是沒(méi)法談（SiC）商業(yè)前景及未來(lái)市場(chǎng)，成本太高是無(wú)法落地的?！?/span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">公開(kāi)資料顯示，目前純電動(dòng)汽車(chē)中，電池成本最高，約占整車(chē)成本的40%；其次為IGBT，成本占比約為8%，如果全部采用SiC材料，單車(chē)的功率器件成本將與電池相當，“這對主機廠(chǎng)來(lái)說(shuō)，是很難承受的成本壓力?！睒I(yè)內人士表示。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">翠展微電子內部人士進(jìn)一步分析認為，“SiC不適于所有車(chē)型，對長(cháng)續航的中高端車(chē)型來(lái)說(shuō)，SiC有上車(chē)機會(huì )，目前選配SiC器件的車(chē)型，基本都是25萬(wàn)元以上的汽車(chē)，大部分價(jià)格在40萬(wàn)元左右。部分A級國產(chǎn)車(chē)為了增加賣(mài)點(diǎn)也會(huì )選用SiC上車(chē)。而在A(yíng)00、A0等車(chē)型上，幾乎不會(huì )選用SiC，而是選用IGBT?！?/span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">據了解，即便是使用IGBT，主機廠(chǎng)也在極盡所能壓縮成本，五菱宏光MINI EV作為A00級新能源汽車(chē)代表，主打高性?xún)r(jià)比，日本名古屋大學(xué)一份拆解報告顯示，為了降低IGBT成本支出，該車(chē)省去了動(dòng)能回收裝置，以此減少I(mǎi)GBT使用量，同時(shí)采用的是工業(yè)級IGBT，而非車(chē)規級產(chǎn)品；并在散熱裝置上采用風(fēng)冷而非主流的水冷方案，從而降低整車(chē)IGBT使用成本。</span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">顯然，對經(jīng)濟車(chē)型來(lái)說(shuō)，并不適于選用成本高昂的SiC器件，即便是中高端車(chē)型，也并非全車(chē)選用SiC，而是部分選用，業(yè)內專(zhuān)家也表示，“不能簡(jiǎn)單地認為SiC比IGBT更高級，兩者是并存的關(guān)系，SiC取代IGBT取決于成本結構，這需要一個(gè)過(guò)程?！?/span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">未來(lái)隨著(zhù)成本持續下降，翠展微電子內部人士認為，“SiC的材料性能比Si基更好，要等它的成本下降到足夠低的時(shí)候才會(huì )普及，我們預計，SiC的成本下降至Si基成本的2倍左右，整個(gè)SiC電驅系統的價(jià)值才能得到提升?！睋私?，2016年SiC單管市場(chǎng)價(jià)格約為110元/顆，目前已下降至約50元/顆，業(yè)內人士表示，“根據過(guò)去幾年的價(jià)格趨勢，SiC大概需要5年價(jià)格會(huì )下降一半；后續產(chǎn)能上來(lái)，這個(gè)價(jià)格降幅會(huì )加快，預計還需要4-5年的時(shí)間，相同規格的SiC價(jià)格可以降到IGBT的3倍以?xún)??！?/span><p></p><p><br /></p></span> <p style="color:#666; padding-top:30px;">*博客內容為網(wǎng)友個(gè)人發(fā)布，僅代表博主個(gè)人觀(guān)點(diǎn)，如有侵權請聯(lián)系工作人員刪除。</p>  <div class="6khifcq" id="coverDiv" class="article_reg" style="width:100%;overflow:hidden;display:none;z-index:10;position:absolute;left:0;background:#fff;"> <center> <img src="https://webstorage.eepw.com.cn/images/display/reg.jpg" border="0" usemap="#Map" /> <map name="Map" id="Map"> <area shape="rect" coords="133,235,319,253" target="_blank" /> <area shape="rect" coords="132,315,319,335" /> </map> </center> </div>  <span id="fggghef" class="hAd8"> <strong><span style="font-family:宋體;font-size:14px;"><strong><strong><span 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