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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>上海低壓氣相沉積真空鍍膜外協(xié),真空鍍膜</p><p><span>***更新：</span>2021-02-04 05:20:38</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gx88amj" 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: </span>020-61086422</p><p><span>地址: </span>長興路363號</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="qpbk7u9" class="page-proshow02"><p class="title">詳細說明</p><div id="3w8f3jy" class="box"><p><p style="text-indent:25px">物理的氣相沉積技術(shù)具有膜/基結(jié)合力好、薄膜均勻致密、薄膜厚度可控性好、應(yīng)用的靶材普遍、濺射范圍寬、可沉積厚膜、可制取成分穩(wěn)定的合金膜和重復(fù)性好等優(yōu)點。同時，物理的氣相沉積技術(shù)由于其工藝處理溫度可控制在500℃以下?；瘜W(xué)氣相沉積技術(shù)是把含有構(gòu)成薄膜元素的單質(zhì)氣體或化合物供給基體，借助氣相作用或基體表面上的化學(xué)反應(yīng)，在基體上制出金屬或化合物薄膜的方法，主要包括常壓化學(xué)氣相沉積，上海低壓氣相沉積真空鍍膜外協(xié)，上海低壓氣相沉積真空鍍膜外協(xié)、低壓化學(xué)氣相沉積和兼有CVD和PVD兩者特點的等離子化學(xué)氣相沉積等。LPCVD主要特征是因為在低壓環(huán)境下，上海低壓氣相沉積真空鍍膜外協(xié)，反應(yīng)氣體的平均自由程及擴散系數(shù)變大，膜厚均勻性好、臺階覆蓋性好。上海低壓氣相沉積真空鍍膜外協(xié)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海低壓氣相沉積真空鍍膜外協(xié),真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346295876877/4943151.png"></div><p style="text-indent:25px">為了獲得性能良好的半導(dǎo)體電極Al膜，我們通過優(yōu)化工藝參數(shù)，制備了一系列性能優(yōu)越的Al薄膜。通過理論計算和性能測試，分析比較了電子束蒸發(fā)與磁控濺射兩種方法制備Al膜的特點?？紤]Al膜的致密性就相當(dāng)于考慮Al膜的晶粒的大小，密度以及能達到均勻化的程度，因為它也直接影響Al膜的其它性能，進而影響半導(dǎo)體嘩啦的性能。氣相沉積的多晶Al膜的晶粒尺寸隨著沉積過程中吸附原子或原子團在基片表面遷移率的增加而增加。由此可以看出Al膜的晶粒尺寸的大小將取決環(huán)于基片溫度、沉積速度、氣相原子在平行基片方面的速度分量、基片表面光潔度和化學(xué)活性等因素。電子束蒸發(fā)：將蒸發(fā)材料置于水冷坩堝中，利用電子束直接加熱使蒸發(fā)材料汽化并在襯底上凝結(jié)形成薄膜，是蒸度高熔點薄膜和高純薄膜的一種主要加熱方法。上海低壓氣相沉積真空鍍膜外協(xié)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="上海低壓氣相沉積真空鍍膜外協(xié),真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346306531246/6300759.png"></div><p style="text-indent:25px">等離子體化學(xué)氣相沉積法，利用了等離子體的活性來促進反應(yīng)，使化學(xué)反應(yīng)能在較低的溫度下進行。優(yōu)點是：反應(yīng)溫度降低，沉積速率較快，成膜質(zhì)量好，不容易破裂。缺點是：設(shè)備投資大、對氣管有特殊要求。PECVD工藝中由于等離子體中高速運動的電子撞擊到中性的反應(yīng)氣體分子，就會使中性反應(yīng)氣體分子變成碎片或處于活動的狀態(tài)容易發(fā)生反應(yīng)，以在襯底在300-350℃就可以得到良好的氧化硅或者氮化硅薄膜，可以在器件當(dāng)中作為鈍化絕緣層，來提高器件的可靠性。</p><p style="text-indent:25px">影響靶中毒的因素主要是反應(yīng)氣體和濺射氣體的比例，反應(yīng)氣體過量就會導(dǎo)致靶中毒。反應(yīng)濺射工藝進行過程中靶表面濺射區(qū)域內(nèi)出現(xiàn)被反應(yīng)生成物覆蓋或反應(yīng)生成物被剝離而重新暴露金屬表面此消彼長的過程。如果化合物的生成速率大于化合物被剝離的速率，化合物覆蓋面積增加。在一定功率的情況下，參與化合物生成的反應(yīng)氣體量增加，化合物生成率增加。如果反應(yīng)氣體量增加過度，化合物覆蓋面積增加，如果不能及時調(diào)整反應(yīng)氣體流量，化合物覆蓋面積增加的速率得不到防止，濺射溝道將進一步被化合物覆蓋，當(dāng)濺射靶被化合物全部覆蓋的時候，靶完全中毒，不能繼續(xù)濺射熱氧化是在一定的溫度和氣體條件下，使硅片表面氧化一定厚度的氧化硅的。主要有干法氧化和濕法氧化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海低壓氣相沉積真空鍍膜外協(xié),真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346403182232/3256037.png"></div><p style="text-indent:25px">對于薄膜應(yīng)力主要有以下原因：1.薄膜生長初始階段，薄膜面和界面的表面張力的共同作用；2.沉積過程中膜面溫度遠高于襯底溫度產(chǎn)生熱應(yīng)變；3.薄膜和襯底間點陣錯配而產(chǎn)生界面應(yīng)力；4.金屬膜氧化后氧化物原子體積增大產(chǎn)生壓應(yīng)力；5.斜入射造成各向異性成核、生長；6.薄膜內(nèi)產(chǎn)生相變或化學(xué)組分改變導(dǎo)致原子體積變化。熱氧化是在一定的溫度和氣體條件下，使硅片表面氧化一定厚度的氧化硅的。主要有干法氧化和濕法氧化，干法氧化是在硅片表面通入氧氣，硅片與氧化反應(yīng)生成氧化硅，氧化速率比較慢，氧化膜厚容易控制。濕法氧化在爐管當(dāng)中通入氧氣和氫氣，兩者反應(yīng)生長水蒸氣，水蒸氣與硅片表面反應(yīng)生長氧化硅，濕法氧化，速率比較快，可以生長比較厚的薄膜。電子束蒸發(fā)源由發(fā)射電子的熱陰極、電子加速極和作為陽極的鍍膜材料組成。云南等離子體增強氣相沉積真空鍍膜價格</p><p style="text-indent:25px">真空鍍膜流程：前處理及化學(xué)清洗→襯底真空中烘烤加熱→等離子體清洗→金屬離子轟擊→鍍金屬過渡層→鍍膜。上海低壓氣相沉積真空鍍膜外協(xié)</p><p style="text-indent:25px">磁控濺射一般金屬鍍膜大都采用直流濺鍍,而不導(dǎo)電的陶磁材料則使用RF交流濺鍍,基本的原理是在真空中利用輝光放電(glowdischarge)將氬氣(Ar)離子撞擊靶材(target)表面，電漿中的陽離子會加速沖向作為被濺鍍材的負電極表面，這個沖擊將使靶材的物質(zhì)飛出而沉積在基板上形成薄膜。PECVD( Plasma Enhanced Chemical Vapor Deposition)等離子增強化學(xué)氣相沉積，等離子體是物質(zhì)分子熱運動加劇，相互間的碰撞會導(dǎo)致氣體分子產(chǎn)生電離，物質(zhì)就會變成自由運動并由相互作用的正離子、電子和中性粒子組成的混合物。上海低壓氣相沉積真空鍍膜外協(xié)</p><p style="text-indent:25px">廣東省科學(xué)院半導(dǎo)體研究所位于長興路363號。公司業(yè)務(wù)分為微納加工技術(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)等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造電子元器件良好品牌。廣東省半導(dǎo)體所立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3153956.html</p></div></div></div></div></div><div id="bqn4y2h" class="page-right twoColRt"><div id="otvfw2k" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cb3l8rb" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="c8ho3bo" class="recomPic likePro"><a 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