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class="home-main container clearfix"><div id="oucqmka" class="twoCol"><div id="4gwmowe" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dzyqj/">電子元器件</a>?<a href="http://www.cdcfah.com/cp/second-dzyqj_dzcllbjjgj/">電子材料、零部件、結(jié)構(gòu)件</a>?<a href="http://www.cdcfah.com/cp/third-dzcllbjjgj_bdtcl/">半導(dǎo)體材料</a>?江西叉指電極真空鍍膜公司廣東省科學(xué)院半導(dǎo)體研究所供應(yīng)</p><div id="zdsu3b2" class="leftbox clearfix"><h1>江西叉指電極真空鍍膜公司廣東省科學(xué)院半導(dǎo)體研究所供應(yīng)</h1><div id="rph7umo" class="proBig"><div id="smolta3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346282849786/535107.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ek2si24" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346282849786/535107.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wgweomq" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江西叉指電極真空鍍膜公司,真空鍍膜</p><p><span>***更新：</span>2021-02-01 01:17:44</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="a2igymk" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">廣東省科學(xué)院半導(dǎo)體研究所</a></p><p><span>聯(lián)系人：</span>曾昭燴</p><p><span>郵箱: </span>512480780@qq.com</p><p><span>電話: </span>15018420573</p><p><span>傳真: </span>020_</p><p><span>網(wǎng)址: </span>http://www.gdssli.com</p><p><span>手機(jī): </span>020-61086422</p><p><span>地址: </span>長興路363號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="imksc2w" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="omucm4u" class="box"><p><p style="text-indent:25px">電子束蒸發(fā)法是真空蒸發(fā)鍍膜中常用的一種方法，是在高真空條件下利用電子束進(jìn)行直接加熱蒸發(fā)材料，使蒸發(fā)材料氣化并向襯底輸運(yùn)，在基底上凝結(jié)形成薄膜的方法。在電子束加熱裝置中，被加熱的材料放置于水冷的坩堝當(dāng)中，可避免蒸發(fā)材料與坩堝壁發(fā)生反應(yīng)影響薄膜的質(zhì)量，因此，江西叉指電極真空鍍膜公司，電子束蒸發(fā)沉積法可以制備高純薄膜。LPCVD反應(yīng)的能量源是熱能，通常其溫度在500℃-1000℃之間，壓力在0.1Torr-2Torr以內(nèi)，影響其沉積反應(yīng)的主要參數(shù)是溫度、壓力和氣體流量，它的主要特征是因?yàn)樵诘蛪涵h(huán)境下，反應(yīng)氣體的平均自由程及擴(kuò)散系數(shù)變大，膜厚均勻性好、臺(tái)階覆蓋性好。目前采用LPCVD工藝制作的主要材料有：多晶硅、單晶硅，江西叉指電極真空鍍膜公司、非晶硅，江西叉指電極真空鍍膜公司、氮化硅等。電子束蒸發(fā)的金屬粒子只能考自身能量附著在襯底表面，臺(tái)階覆蓋性比較差。江西叉指電極真空鍍膜公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西叉指電極真空鍍膜公司,真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346282849786/535107.png"></div><p style="text-indent:25px">熱氧化與化學(xué)氣相沉積不同，她是通過氧氣或水蒸氣擴(kuò)散到硅表面并進(jìn)行化學(xué)反應(yīng)形成氧化硅。熱氧化形成氧化硅時(shí)，會(huì)消耗相當(dāng)于氧化硅膜厚的45%的硅。熱氧化氧化過程主要分兩個(gè)步驟：步驟一：氧氣或者水蒸氣等吸附到氧化硅表面，步驟二：氧氣或者水蒸氣等擴(kuò)散到硅表面，步驟三：氧氣或者水蒸氣等與硅反應(yīng)生成氧化硅。熱蒸發(fā)主要是三個(gè)過程：1.蒸發(fā)材料從固態(tài)轉(zhuǎn)化為氣態(tài)的過程。2.氣化原子或分子在蒸發(fā)源與基底之間的運(yùn)輸 3.蒸發(fā)原子或分子在襯底表面上淀積過程，即是蒸汽凝聚、成核、核生長、形成連續(xù)薄膜的過程。江西叉指電極真空鍍膜公司在一定溫度下，真空當(dāng)中，蒸發(fā)物質(zhì)的蒸氣與固體平衡過程中所表現(xiàn)出的壓力，稱為該物質(zhì)的飽和蒸氣壓。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西叉指電極真空鍍膜公司,真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346306531246/6300759.png"></div><p style="text-indent:25px">在等離子增強(qiáng)化學(xué)氣相沉積(PECVD)工藝中，由等離子體輔助化學(xué)反應(yīng)過程。在等離子體輔助下，200 到500°C的工藝溫度足以實(shí)現(xiàn)成品膜層的制備，因此該技術(shù)降低了基材的溫度負(fù)荷。等離子可在接近基片的周圍被激發(fā)(近程等離子法)。而對(duì)于半導(dǎo)體硅片等敏感型基材，輻射和離子轟擊可能損壞基材。另一方面，在遠(yuǎn)程等離子法中，等離子體與基材間設(shè)有空間隔斷。隔斷不僅能夠保護(hù)基材，也允許激發(fā)混合工藝氣體的特定成分。然而，為保證化學(xué)反應(yīng)在被活動(dòng)的粒子真正抵達(dá)基材表面時(shí)才開始進(jìn)行，需精心設(shè)計(jì)工藝過程。</p><p style="text-indent:25px">電子束蒸發(fā)的金屬粒子只能考自身能量附著在襯底表面，臺(tái)階覆蓋性比較差，如果需要追求臺(tái)階覆蓋性和薄膜粘附力，建議使用磁控濺射。電子束蒸發(fā)是目前真空鍍膜技術(shù)中一種成熟且主要的鍍膜方法，它解決了電阻加熱方式中鎢舟材料與蒸鍍?cè)床牧现苯咏佑|容易互混的問題。同時(shí)在同一蒸發(fā)沉積裝置中可以安置多個(gè)坩堝，實(shí)現(xiàn)同時(shí)或分別蒸發(fā)，沉積多種不同的物質(zhì)。通過電子束蒸發(fā)，任何材料都可以被蒸發(fā)，不同材料需要采用不同類型的坩堝以獲得所要達(dá)到的蒸發(fā)速率。電子束蒸發(fā)可以蒸發(fā)高熔點(diǎn)材料，比一般電阻加熱蒸發(fā)熱效率高、束流密度大、蒸發(fā)速度快，制成的薄膜純度高、質(zhì)量好，通過晶振控制，厚度可以較準(zhǔn)確地控制，可以普遍應(yīng)用于制備高純薄膜和各種光學(xué)材料薄膜。使用等離子體增強(qiáng)氣相沉積法（PECVD）可在低溫（200-350℃）沉積出良好的氧化硅薄膜。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西叉指電極真空鍍膜公司,真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346443485231/3119253.png"></div><p style="text-indent:25px">真空蒸發(fā)鍍膜是在真空室中，加熱蒸發(fā)容器待形成薄膜的原材料，使其原子或者分子從表面氣化逸出，形成蒸汽流，入射到襯底或者基片表面，凝結(jié)形成固態(tài)薄膜的方法。真空蒸發(fā)鍍膜法，設(shè)備比較簡單、容易操作、制成的薄膜純度高、質(zhì)量好、膜厚容易控制，成膜速率快，效果高。在蒸發(fā)溫度以上進(jìn)行蒸發(fā)試，蒸發(fā)源溫度的微小變化即可引起蒸發(fā)速率發(fā)生很大變化。因此，在鍍膜過程中，想要控制蒸發(fā)速率，必須精確控制蒸發(fā)源的溫度，加熱時(shí)應(yīng)盡量避免產(chǎn)生過大的溫度梯度。蒸發(fā)速率正比于材料的飽和蒸氣壓，溫度變化10%左右，飽和蒸氣壓就要變化一個(gè)數(shù)量級(jí)左右。等離子體增強(qiáng)氣相沉積法已被普遍應(yīng)用于半導(dǎo)體器件工藝當(dāng)中。江西叉指電極真空鍍膜公司</p><p style="text-indent:25px">等離子體化學(xué)氣相沉積法使局部形成等離子體，而等離子體化學(xué)活性很強(qiáng)。江西叉指電極真空鍍膜公司</p><p style="text-indent:25px">針對(duì)PVD制備薄膜應(yīng)力的解決辦法主要有：1.熱退火處理，薄膜中存在的各種缺陷是產(chǎn)生本征應(yīng)力的主要原因，這些缺陷一般都是非平衡缺陷，有自行消失的傾向，但需要外界給予活化能。對(duì)薄膜進(jìn)行熱處理，非平衡缺陷大量消失，薄膜內(nèi)應(yīng)力卓著降低；2.添加亞層控制多層薄膜應(yīng)力，利用應(yīng)變相消原理，在薄膜層之間再沉積一層薄膜，控制工藝使其呈現(xiàn)與結(jié)構(gòu)薄膜相反的應(yīng)力狀態(tài)，緩解應(yīng)力帶來的破壞作用，整體上抵消內(nèi)部應(yīng)力；3.提高襯底溫度，有利于薄膜和襯底間原子擴(kuò)散，并加速反應(yīng)過程，有利于形成擴(kuò)散附著，降低內(nèi)應(yīng)力。江西叉指電極真空鍍膜公司</p><p style="text-indent:25px">廣東省科學(xué)院半導(dǎo)體研究所致力于電子元器件，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。廣東省半導(dǎo)體所深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的微納加工技術(shù)服務(wù)，真空鍍膜技術(shù)服務(wù)，紫外光刻技術(shù)服務(wù)，材料刻蝕技術(shù)服務(wù)。廣東省半導(dǎo)體所繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。廣東省半導(dǎo)體所始終關(guān)注電子元器件市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3100174.html</p></div></div></div></div></div><div id="aegy2mg" class="page-right twoColRt"><div id="wldv3mf" class="box01 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