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href="http://www.cdcfah.com/cp/third-dzcllbjjgj_bdtcl/">半導(dǎo)體材料</a>?黑龍江MEMS材料刻蝕公司廣東省科學(xué)院半導(dǎo)體研究所供應(yīng)</p><div id="ze2tqce" class="leftbox clearfix"><h1>黑龍江MEMS材料刻蝕公司廣東省科學(xué)院半導(dǎo)體研究所供應(yīng)</h1><div id="mw233wq" class="proBig"><div id="lfhewya" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343010112250/1147970.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xbd3jar" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343010112250/1147970.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uj7bdkr" 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>黑龍江MEMS材料刻蝕公司,材料刻蝕</p><p><span>***更新：</span>2020-12-13 05:24:54</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="tnfh3by" 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(zhǎng)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="qkmov2m" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="w8gnuev" class="box"><p><p style="text-indent:25px">在等離子蝕刻工藝中,發(fā)生著許多的物理現(xiàn)象。當(dāng)在腔體中使用電極（DC或RF激發(fā)）或微波產(chǎn)生一個(gè)強(qiáng)電場(chǎng),這個(gè)電場(chǎng)會(huì)加速所有的自由電子并提高他們的內(nèi)部能量(由于宇宙射線的原因,在任何環(huán)境中都會(huì)存在一些自由電子)。自由電子與氣體中的原子/分子發(fā)生撞擊,如果在碰撞過(guò)程中,電子傳遞了足夠的能量給原子/分子,就會(huì)發(fā)生電離現(xiàn)象,并且產(chǎn)生正離子和其他自由電子若碰撞傳遞的能量不足以激發(fā)電離現(xiàn)象則無(wú)法產(chǎn)生穩(wěn)定且能發(fā)生反應(yīng)的中性物當(dāng)足夠的能量提供給系統(tǒng)，黑龍江MEMS材料刻蝕公司,一個(gè)穩(wěn)定的，黑龍江MEMS材料刻蝕公司,氣相等離子體包含自由電子,正離子和反應(yīng)中性物等離子蝕刻工藝中等離子體中的原子、分子離子、反應(yīng)中性物通過(guò)物理和化學(xué)方式移除襯底表面的材料。純物理蝕刻采用強(qiáng)電場(chǎng)來(lái)加速正原子離子（通常使用重量較重,惰性的氬原子）朝向襯底，加速過(guò)程將能量傳遞給了離子，黑龍江MEMS材料刻蝕公司,當(dāng)它們撞擊到襯底表面時(shí),內(nèi)部的能量傳遞給襯底表面的原子,如果足夠的能量被傳遞,襯底表面的原子會(huì)被噴射到氣體中,較終被真空系統(tǒng)抽走?？涛g較簡(jiǎn)單較常用分類是：干法刻蝕和濕法刻蝕。黑龍江MEMS材料刻蝕公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江MEMS材料刻蝕公司,材料刻蝕" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343010112250/1147970.png"></div><p style="text-indent:25px">刻蝕是使用化學(xué)或者物理方法有選擇地從硅片表面去除不需要材料的過(guò)程，常用的設(shè)備為刻蝕機(jī)等。通常的晶圓加工流程中，刻蝕工藝位于光刻工藝之后，有圖形的光刻膠層在刻蝕中不會(huì)受到腐蝕源的明顯侵蝕，從而完成圖形轉(zhuǎn)移的工藝步驟。為在硅片表面材料上復(fù)制掩膜圖案，刻蝕需要滿足一定的參數(shù)，主要有：刻蝕速率、刻蝕剖面、刻蝕偏差和選擇比等?？涛g速率指刻蝕過(guò)程中去除硅片表面材料的速度；刻蝕剖面指的是刻蝕圖形的側(cè)壁形狀，通常分為各向同性和各向異性剖面；刻蝕偏差指的是線寬或關(guān)鍵尺寸間距的變化，通常由橫向鉆蝕引起；選擇比指的是同一刻蝕條件下兩種材料刻蝕速率比，高選擇比意味著不需要的材料會(huì)被刻除。浙江硅材料刻蝕加工工廠有圖形的光刻膠層在刻蝕中不受腐蝕源明顯的侵蝕。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江MEMS材料刻蝕公司,材料刻蝕" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430342999769976/1129759.png"></div><p style="text-indent:25px">在氧化物中開(kāi)窗口的過(guò)程，可能導(dǎo)致氧化物—硅界面層附近的Si0處發(fā)生鉆蝕。在極端情況下，可以導(dǎo)致氧化物層的脫落。在淺擴(kuò)散高速晶體管的制造中有時(shí)會(huì)遇到這一問(wèn)題。薄膜材料刻蝕所用的化學(xué)物與溶解這一類物體的材料是相同的，其作用是將材料轉(zhuǎn)變成可溶性的鹽或復(fù)合物。對(duì)于每種材料，都有多種刻蝕化學(xué)物可選用，它們的特性取決于膜的參數(shù)(如膜的微結(jié)構(gòu)、疏松度和膜的形成過(guò)程)，同時(shí)也取決于所提供的前加工過(guò)程的性質(zhì)。它一般有下述特點(diǎn)：(1)膜材料比相應(yīng)的體材料更容易刻蝕。因此，必須用稀釋的刻蝕劑，以便控制刻蝕速率。(2)受照射的膜一般將被迅速刻蝕。這種情況，包括離子注入的膜，電子束蒸發(fā)生成的膜，甚至前工序中曾在電子束蒸發(fā)環(huán)境中受照射的膜。而某些光刻膠受照射則屬于例外，因?yàn)檫@是由于聚合作用而變得更難刻蝕的緣故。負(fù)性膠就是一例。(3)內(nèi)應(yīng)力大的膜將迅速被刻蝕。膜的應(yīng)力通常由沉積溫度、沉積技術(shù)和基片溫度所控制。(4)微觀結(jié)構(gòu)差的薄膜，包括多孔膜和疏松結(jié)構(gòu)的膜，將被迅速刻蝕。這樣的膜，常可以通過(guò)高于生長(zhǎng)溫度的熱處理使其致密化。</p><p style="text-indent:25px">在半導(dǎo)體制造中有兩種基本的刻蝕工藝：干法刻蝕和濕法腐蝕。干法刻蝕是把硅片表面曝露于氣態(tài)中產(chǎn)生的等離子體，等離子體通過(guò)光刻膠中開(kāi)出的窗口，與硅片發(fā)生物理或化學(xué)反應(yīng)（或這兩種反應(yīng)），從而去掉曝露的表面材料。干法刻蝕是亞微米尺寸下刻蝕器件的較重要方法。而在濕法腐蝕中，液體化學(xué)試劑（如酸、堿和溶劑等）以化學(xué)方式去除硅片表面的材料。濕法腐蝕一般只是用在尺寸較大的情況下（大于3微米）。濕法腐蝕仍然用來(lái)腐蝕硅片上某些層或用來(lái)去除干法刻蝕后的殘留物。硅和金屬刻蝕使用含氯成分的化學(xué)物質(zhì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江MEMS材料刻蝕公司,材料刻蝕" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343095082892/6968052.png"></div><p style="text-indent:25px">二氧化硅的干法刻蝕：刻蝕原理氧化物的等離子體刻蝕工藝大多采用含有氟碳化合物的氣體進(jìn)行刻蝕。使用的氣體有四氟化碳(CF)、八氟丙烷(C，F(xiàn)8)、三氟甲烷(CHF3)等，常用的是CF和CHFCF的刻蝕速率比較高但對(duì)多晶硅的選擇比不好，CHF3的聚合物生產(chǎn)速率較高，非等離子體狀態(tài)下的氟碳化合物化學(xué)穩(wěn)定性較高，且其化學(xué)鍵比SiF的化學(xué)鍵強(qiáng)，不會(huì)與硅或硅的氧化物反應(yīng)。選擇比的改變?cè)诋?dāng)今半導(dǎo)體工藝中，Si02的干法刻蝕主要用于接觸孔與金屬間介電層連接洞的非等向性刻蝕方面。前者在S102下方的材料是Si，后者則是金屬層，通常是TiN（氮化鈦），因此在Si02的刻蝕中，Si07與Si或TiN的刻蝕選擇比是一個(gè)比較重要的因素。有圖形刻蝕采用掩蔽層來(lái)定義要刻蝕掉的表面材料區(qū)域，只有硅片上被選擇的這一部分在刻蝕過(guò)程中刻掉。山東深硅刻蝕材料刻蝕廠商</p><p style="text-indent:25px">按照被刻蝕的材料類型來(lái)劃分，干法刻蝕主要分成三種：金屬刻蝕、介質(zhì)刻蝕和硅刻蝕。黑龍江MEMS材料刻蝕公司</p><p style="text-indent:25px">介質(zhì)刻蝕是用于介質(zhì)材料的刻蝕，如二氧化硅。干法刻蝕優(yōu)點(diǎn)是：各向異性好，選擇比高，可控性、靈活性、重復(fù)性好，細(xì)線條操作安全，易實(shí)現(xiàn)自動(dòng)化，無(wú)化學(xué)廢液，處理過(guò)程未引入污染，潔凈度高。缺點(diǎn)是：成本高，設(shè)備復(fù)雜。干法刻蝕主要形式有純化學(xué)過(guò)程（如屏蔽式，下游式，桶式），純物理過(guò)程（如離子銑），物理化學(xué)過(guò)程，常用的有反應(yīng)離子刻蝕RIE，離子束輔助自由基刻蝕ICP等。干法刻蝕方式比較多，一般有：濺射與離子束銑蝕，等離子刻蝕（PlasmaEtching），高壓等離子刻蝕，高密度等離子體（HDP）刻蝕，反應(yīng)離子刻蝕（RIE）。另外，化學(xué)機(jī)械拋光CMP，剝離技術(shù)等等也可看成是廣義刻蝕的一些技術(shù)。黑龍江MEMS材料刻蝕公司</p><p style="text-indent:25px">廣東省科學(xué)院半導(dǎo)體研究所位于長(zhǎng)興路363號(hào)。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(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司從事電子元器件多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。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(yíng)理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2384006.html</p></div></div></div></div></div><div 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