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src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343116772469/7751513.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="d3wyfm3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343116772469/7751513.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="x43u2ih" 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>四川氮化鎵材料刻蝕加工廠商,材料刻蝕</p><p><span>***更新：</span>2021-01-02 02:20:02</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="t7yp8ri" 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</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="7e4cofw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vhtvmya" class="box"><p><p style="text-indent:25px">刻蝕工藝去除晶圓表面的特定區(qū)域，以沉積其它材料?！案煞ā保ǖ入x子）刻蝕用于形成電路，而“濕法”刻蝕（使用化學(xué)?。┲饕糜谇鍧嵕A。干法刻蝕是半導(dǎo)體制造中較常用的工藝之一。開始刻蝕前，晶圓上會涂上一層光刻膠或硬掩膜（通常是氧化物或氮化物），四川氮化鎵材料刻蝕加工廠商，然后在光刻時將電路圖形曝光在晶圓上。刻蝕只去除曝光圖形上的材料。在芯片工藝中，圖形化和刻蝕過程會重復(fù)進(jìn)行多次，四川氮化鎵材料刻蝕加工廠商。等離子刻蝕是將電磁能量（通常為射頻（RF））施加到含有化學(xué)反應(yīng)成分（如氟或氯）的氣體中實現(xiàn)。等離子會釋放帶正電的離子來撞擊晶圓以去除（刻蝕）材料，四川氮化鎵材料刻蝕加工廠商，并和活性自由基產(chǎn)生化學(xué)反應(yīng)，與刻蝕的材料反應(yīng)形成揮發(fā)性或非揮發(fā)性的殘留物。離子電荷會以垂直方向射入晶圓表面。這樣會形成近乎垂直的刻蝕形貌，這種形貌是現(xiàn)今密集封裝芯片設(shè)計中制作細(xì)微特征所必需的。一般而言，高蝕速率（在一定時間內(nèi)去除的材料量）都會受到歡迎。理想情況下，晶圓所有點的刻蝕速率都一致（均勻）。四川氮化鎵材料刻蝕加工廠商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川氮化鎵材料刻蝕加工廠商,材料刻蝕" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343116772469/7751513.png"></div><p style="text-indent:25px">在Si片上形成具有垂直側(cè)壁的高深寬比溝槽結(jié)構(gòu)是制備先進(jìn)MEMS器件的關(guān)鍵工藝，其各向異性刻蝕要求非常嚴(yán)格。高深寬比的干法刻蝕技術(shù)以其刻蝕速率快、各向異性較強(qiáng)、污染少等優(yōu)點脫穎而出，成為MEMS器件加工的關(guān)鍵技術(shù)之一。BOSCH工藝,又名TMDE(Time Multiplexed Deep Etching)工藝，是一個刻蝕—鈍化—刻蝕的循環(huán)過程，以達(dá)到對硅材料進(jìn)行高深寬比、各向異性刻蝕的目的。 BOSCH工藝的原理是在反應(yīng)腔室中輪流通入鈍化氣體C4F8與刻蝕氣體SF6與樣品進(jìn)行反應(yīng)，工藝的整個過程是淀積鈍化層步驟與刻蝕步驟的反復(fù)交替。其中保護(hù)氣體C4F8在高密度等離子體的作用下分解生成碳氟聚合物保護(hù)層，沉積在已經(jīng)做好圖形的樣品表面。河南硅材料刻蝕廠家二氧化硅濕法刻蝕：較普通的刻蝕層是熱氧化形成的二氧化硅。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川氮化鎵材料刻蝕加工廠商,材料刻蝕" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343095082892/6968052.png"></div><p style="text-indent:25px">早期的刻蝕技術(shù)為濕法刻蝕，就是將刻蝕材料浸泡在腐蝕液中進(jìn)行腐蝕的技術(shù)。這個過程是純化學(xué)腐蝕的過程。濕法刻蝕具有良好的選擇性，例如實驗室經(jīng)常采用磷酸來腐蝕鋁金屬化，而不會腐蝕金屬化層間的介質(zhì)層材料；半導(dǎo)體制造過程中用調(diào)配后的氫氟酸（加入NH4F緩沖液）來腐蝕二氧化硅，而不會對光刻膠造成過量的傷害。隨著半導(dǎo)體特征尺寸的不斷減小，濕法刻蝕逐漸**法刻蝕所替代。其原因在于濕法刻蝕是各向同性的，橫向刻蝕的寬度接近于縱向刻蝕的深度，因此會產(chǎn)生鉆蝕的現(xiàn)象，因此在小尺寸的制程中，濕法刻蝕的精度控制非常困難，并且可重復(fù)性差。</p><p style="text-indent:25px">干刻蝕是一類較新型，但迅速為半導(dǎo)體工業(yè)所采用的技術(shù)。其利用電漿(plasma)來進(jìn)行半導(dǎo)體薄膜材料的刻蝕加工。其中電漿必須在真空度約10至0.001Torr的環(huán)境下，才有可能被激發(fā)出來；而干刻蝕采用的氣體，或轟擊質(zhì)量頗巨，或化學(xué)活性極高，均能達(dá)成刻蝕的目的。干刻蝕基本上包括離子轟擊與化學(xué)反應(yīng)兩部份刻蝕機(jī)制。偏「離子轟擊」效應(yīng)者使用氬氣(argon)，加工出來之邊緣側(cè)向侵蝕現(xiàn)象極微。而偏化學(xué)反應(yīng)效應(yīng)者則采氟系或氯系氣體(如四氟化碳CF4)，經(jīng)激發(fā)出來的電漿，即帶有氟或氯之離子團(tuán)，可快速與芯片表面材質(zhì)反應(yīng)。刪轎厚干刻蝕法可直接利用光阻作刻蝕之阻絕遮幕，不必另行成長阻絕遮幕之半導(dǎo)體材料。而其較重要的優(yōu)點，能兼顧邊緣側(cè)向侵蝕現(xiàn)象極微與高刻蝕率兩種優(yōu)點，換言之，本技術(shù)中所謂活性離子刻蝕已足敷頁堡局滲次微米線寬制程技術(shù)的要求，而正被大量使用。按照被刻蝕的材料類型來劃分，干法刻蝕主要分成三種：金屬刻蝕、介質(zhì)刻蝕和硅刻蝕。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川氮化鎵材料刻蝕加工廠商,材料刻蝕" src="https://tyunfile.71360.com/UploadFile/bdtyys888/637430343060072941/2374410.png"></div><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，易實現(xiàn)自動化，無化學(xué)廢液，處理過程未引入污染，潔凈度高。缺點是：成本高，設(shè)備復(fù)雜。干法刻蝕主要形式有純化學(xué)過程（如屏蔽式，下游式，桶式），純物理過程（如離子銑），物理化學(xué)過程，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)。刻蝕是按照掩模圖形或設(shè)計要求對半導(dǎo)體襯底表面或表面覆蓋薄膜進(jìn)行選擇性刻蝕的技術(shù)。中山硅材料刻蝕加工廠</p><p style="text-indent:25px">有圖形刻蝕采用掩蔽層來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程中刻掉。四川氮化鎵材料刻蝕加工廠商</p><p style="text-indent:25px">相比刻蝕用單晶硅材料，芯片用單晶硅材料是芯片等終端產(chǎn)品的原材料，市場更為廣闊，國產(chǎn)替代的需求也十分旺盛。SEMI的統(tǒng)計顯示，2018年全球半導(dǎo)體制造材料市場規(guī)模為322.38億美元，其中硅材料的市場規(guī)模達(dá)到121.24億美元，占比高達(dá)37.61%。刻蝕用單晶硅材料和芯片用單晶硅材料在制造環(huán)節(jié)上有諸多相似之處：積累的固液共存界面控制技術(shù)、熱場尺寸優(yōu)化工藝、多晶硅投料優(yōu)化等工藝技術(shù)已經(jīng)達(dá)到國際先進(jìn)水平，為進(jìn)入新賽道提供了產(chǎn)業(yè)技術(shù)和經(jīng)驗的支撐。四川氮化鎵材料刻蝕加工廠商</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)新實現(xiàn)***管理的追求。公司自創(chuàng)立以來，投身于微納加工技術(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)，是電子元器件的主力軍。廣東省半導(dǎo)體所繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。廣東省半導(dǎo)體所始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使廣東省半導(dǎo)體所在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2664540.html</p></div></div></div></div></div><div id="cijgxov" class="page-right twoColRt"><div id="8nr22zg" class="box01 margin10 clearfix"><h3><a 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