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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gq72of3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346372459412/3846733.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fuw8k2s" 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>江西功率器件真空鍍膜多少錢,真空鍍膜</p><p><span>***更新：</span>2020-12-29 09:29:22</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="poliprl" 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="wqnk3wy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2vnfc3s" class="box"><p><p style="text-indent:25px">PECVD生長氧化硅薄膜是一個(gè)比較復(fù)雜的過程，薄膜的沉積速率主要受到反應(yīng)氣體比例、RF功率、反應(yīng)室壓力、基片生長溫度等。在一定范圍內(nèi)，提高硅烷與笑氣的比例，可提供氧化硅的沉積速率。在RF功率較低的時(shí)候，提升RF功率可提升薄膜的沉積速率，當(dāng)RF增加到一定值后，沉積速率隨RF增大而減少，江西功率器件真空鍍膜多少錢，然后趨于飽和。在一定的氣體總量條件下，沉積速率隨腔體壓力增大而增大。PECVD在低溫范圍內(nèi)（200-350℃），江西功率器件真空鍍膜多少錢，沉積速率會(huì)隨著基片溫度的升高而略微下降，但不是太明顯，江西功率器件真空鍍膜多少錢。LPCVD反應(yīng)的能量源是熱能，通常其溫度在500℃-1000℃之間。江西功率器件真空鍍膜多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西功率器件真空鍍膜多少錢,真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346372459412/3846733.png"></div><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(huì)加速?zèng)_向作為被濺鍍材的負(fù)電極表面，這個(gè)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(qiáng)化學(xué)氣相沉積，等離子體是物質(zhì)分子熱運(yùn)動(dòng)加劇，相互間的碰撞會(huì)導(dǎo)致氣體分子產(chǎn)生電離，物質(zhì)就會(huì)變成自由運(yùn)動(dòng)并由相互作用的正離子、電子和中性粒子組成的混合物。江西功率器件真空鍍膜多少錢磁控濺射主要利用輝光放電將氬氣離子撞擊靶材表面,靶材的原子被彈出而堆積在基板表面形成薄膜。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西功率器件真空鍍膜多少錢,真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346403182232/3256037.png"></div><p style="text-indent:25px">化學(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、低壓化學(xué)氣相沉積和兼有CVD和PVD兩者特點(diǎn)的等離子化學(xué)氣相沉積等。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(diǎn)。同時(shí)，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。</p><p style="text-indent:25px">磁控濺射可改變工作氣體與氬氣比例從而進(jìn)行反應(yīng)濺射，例如使用Si靶材，通入一定比例的N2，氬氣作為工作氣體，而氮?dú)庾鳛榉磻?yīng)氣體，較終能得到SiNx薄膜。通入氧氣與氮?dú)鈴亩@得各種材料的氧化物與氮化物薄膜，通過改變反應(yīng)氣體與工作氣體的比例也能對(duì)濺射速率進(jìn)行調(diào)整，薄膜內(nèi)組分也能相應(yīng)調(diào)整。但反應(yīng)氣體過量時(shí)可能會(huì)造成靶中毒。磁控濺射還可用于不同金屬合金的共濺射，同時(shí)使用多個(gè)靶qiang電源和不同靶材，例如TiW合金，通過獨(dú)自調(diào)整Ti、W的濺射速率，同時(shí)開始濺射2種材料，則在襯底上可以形成Ti/W合計(jì)，對(duì)不同材料的速率進(jìn)行調(diào)節(jié)，即能滿足不同組分的要求。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="江西功率器件真空鍍膜多少錢,真空鍍膜" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430346429324988/3252501.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(jì)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(diǎn)?？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(dá)到均勻化的程度，因?yàn)樗仓苯佑绊慉l膜的其它性能，進(jìn)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(tuán)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(diǎn)薄膜和高純薄膜的一種主要加熱方法。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(jìn)反應(yīng)，使化學(xué)反應(yīng)能在較低的溫度下進(jìn)行。四川叉指電極真空鍍膜價(jià)格</p><p style="text-indent:25px">蒸發(fā)高熔點(diǎn)的材料可以用薄片來蒸鍍，將1mm材料薄片架空于碳坩堝上沿，薄片只能通過坩堝邊沿來導(dǎo)熱。江西功率器件真空鍍膜多少錢</p><p style="text-indent:25px">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。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。江西功率器件真空鍍膜多少錢</p><p style="text-indent:25px">廣東省科學(xué)院半導(dǎo)體研究所主要經(jīng)營范圍是電子元器件，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場口碑。廣東省半導(dǎo)體所致力于為客戶提供良好的微納加工技術(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)，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在電子元器件深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造電子元器件良好品牌。廣東省半導(dǎo)體所秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營理念，全力打造公司的重點(diǎn)競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2615229.html</p></div></div></div></div></div><div id="2uda3gy" class="page-right twoColRt"><div id="akuroq8" class="box01 margin10 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