TWI802264B - 抗電漿腐蝕薄膜結構與其製造方法 - Google Patents
抗電漿腐蝕薄膜結構與其製造方法 Download PDFInfo
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- 238000005260 corrosion Methods 0.000 title claims abstract description 191
- 230000007797 corrosion Effects 0.000 title claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000007740 vapor deposition Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 43
- 239000010409 thin film Substances 0.000 claims description 25
- 238000000231 atomic layer deposition Methods 0.000 claims description 22
- 238000005240 physical vapour deposition Methods 0.000 claims description 20
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000010408 film Substances 0.000 claims description 13
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 11
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 claims description 11
- 238000007750 plasma spraying Methods 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000010894 electron beam technology Methods 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000005229 chemical vapour deposition Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims description 4
- 239000012495 reaction gas Substances 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 239000012159 carrier gas Substances 0.000 claims description 3
- 238000001947 vapour-phase growth Methods 0.000 claims description 3
- ULHBQGGDBWQMFE-UHFFFAOYSA-N [F+][O-].[Y] Chemical compound [F+][O-].[Y] ULHBQGGDBWQMFE-UHFFFAOYSA-N 0.000 claims 1
- 238000007751 thermal spraying Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 108
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910052727 yttrium Inorganic materials 0.000 description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 4
- CHEANNSDVJOIBS-MHZLTWQESA-N (3s)-3-cyclopropyl-3-[3-[[3-(5,5-dimethylcyclopenten-1-yl)-4-(2-fluoro-5-methoxyphenyl)phenyl]methoxy]phenyl]propanoic acid Chemical compound COC1=CC=C(F)C(C=2C(=CC(COC=3C=C(C=CC=3)[C@@H](CC(O)=O)C3CC3)=CC=2)C=2C(CCC=2)(C)C)=C1 CHEANNSDVJOIBS-MHZLTWQESA-N 0.000 description 2
- JHFCTJHPQRVPAJ-UHFFFAOYSA-N C(C)C1(C=CC=C1)[Y](C1(C=CC=C1)CC)C1(C=CC=C1)CC Chemical compound C(C)C1(C=CC=C1)[Y](C1(C=CC=C1)CC)C1(C=CC=C1)CC JHFCTJHPQRVPAJ-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- CHBIYWIUHAZZNR-UHFFFAOYSA-N [Y].FOF Chemical compound [Y].FOF CHBIYWIUHAZZNR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007735 ion beam assisted deposition Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
一種抗電漿腐蝕薄膜結構與其製造方法,包括一基材、一第一抗腐蝕層、一第二抗腐蝕層與第三抗腐蝕層。第一抗腐蝕層設置於該基材上,並與該基材接觸。第二抗腐蝕層設置於該第一抗腐蝕層上。第三抗腐蝕層設置於該第二抗腐蝕層上。其中,該第一抗腐蝕層與該第三抗腐蝕層是經由氣相沉積方法形成。其中,該第二抗腐蝕層是經由電漿噴塗形成。
Description
一種薄膜結構與其製造方法,特別是一種抗電漿腐蝕薄膜結構。
在半導體產業中,電漿廣泛應用於各式半導體製程設備中,然而隨著製程能力的進步,對於腔體部件表面處理要求越來越嚴格,目前設備腔體大部分為鋁製腔體,但鋁抗電漿侵蝕能力不佳,因此業界大多是對設備與電漿接觸的部位進行表面微結構處理,使其具備抗電漿腐蝕的特性。
而目前常用的表面微結構處理是電漿噴塗,是以氧化釔(Y
2O
3)或釔鋁石榴石(Yttrium aluminum garnet,YAG)等材料進行表面處理,其抗電漿腐蝕性優於鋁。但因該噴塗材料表面具有多孔隙特性,不利於半導體製程。電漿化學氣相沉積(Plasma-enhanced chemical vapor deposition,PECVD)、原子層沉積(Atomic layer deposition,ALD)或物理氣相沉積(Physical vapor deposition,PVD)雖可產生無孔隙的薄膜,但其沉積速度慢並且成本昂貴,要達到與電漿噴塗相同的厚度,需要更多的時間與成本。
因此,如何解決上述問題,便是本領具通常知識者值得去思量的。
本發明提供一種抗電漿腐蝕薄膜結構,利用緻密、鬆散、緻密多層次的抗腐蝕層形成抗腐蝕結構,可用較少的時間與成本形成,並保持與習知完全緻密抗腐蝕層相當的抗腐蝕特性。其具體技術手段如下:
一種抗電漿腐蝕薄膜結構,包括一基材、一第一抗腐蝕層、一第二抗腐蝕層與第三抗腐蝕層。第一抗腐蝕層設置於該基材上,並與該基材接觸。第二抗腐蝕層設置於該第一抗腐蝕層上。第三抗腐蝕層設置於該第二抗腐蝕層上。其中,該第一抗腐蝕層與該第三抗腐蝕層是經由氣相沉積方法形成。其中,該第二抗腐蝕層是經由電漿噴塗形成。
上述之抗電漿腐蝕薄膜結構,其中,氣相沉積方法為電漿化學氣相沉積(PECVD)、原子層沉積(ALD)或物理氣相沉積(PVD)。
上述之抗電漿腐蝕薄膜結構,其中,該第一抗腐蝕層與該第三抗腐蝕層的厚度為5~20µm;該第二抗腐蝕層的厚度為100~250µm。
上述之抗電漿腐蝕薄膜結構,其中,該第二抗腐蝕層與該第一抗腐蝕層的厚度比介於5~50之間;該第二抗腐蝕層與該第三抗腐蝕層的厚度比介於5~50之間。
上述之抗電漿腐蝕薄膜結構,其中,該第一抗腐蝕層、該第二抗腐蝕層與該第三抗腐蝕層的材料包括氧化釔(Y
2O
3)、氟氧化釔(YOF)或釔鋁石榴石(Yttrium aluminum garnet,YAG)。
本發明還提供一種抗電漿腐蝕薄膜結構製造方法,包括:
S10:提供一基材;
S20:在該基材上以氣相沉積方法形成第一抗腐蝕層;
S30:在該第一抗腐蝕層上以電漿噴塗形成一第二抗腐蝕層;及
S40:在該第二抗腐蝕層上以氣相沉積方法形成一第三抗腐蝕層。
上述之抗電漿腐蝕薄膜結構製造方法,其中,在步驟S20中,氣相沉積方法為物理氣相沉積。
上述之抗電漿腐蝕薄膜結構製造方法,其中,該物理氣相沉積,參數控制為腔體溫度25℃~200℃、蒸鍍速率0.1~1.5nm/s、離子源電漿功率輔助電子束電流100~1500mA、電壓100-1500V、氣體流量氬氣10~50sccm、氧氣10~100sccm、製程壓力2.0E-2~1.0E-6 Torr。
上述之抗電漿腐蝕薄膜結構製造方法,其中,在步驟S20中,氣相沉積方法為原子層沉積。
上述之抗電漿腐蝕薄膜結構製造方法,其中,該原子層沉積之參數控制為:反應氣體流量10~100sccm,腔體溫度100~400℃ 、製程壓力1~10 Torr。
上述之抗電漿腐蝕薄膜結構製造方法,其中,在步驟S30中,該電漿噴塗之電弧電流300~600A、載台轉速5~30RPM、載氣氣體為氬氣(Ar)、氮氣(N
2),氣體流量10~30L/min。
請參閱圖1,圖1所繪示為本發明之抗電漿腐蝕薄膜結構。本發明之抗電漿腐蝕薄膜結構100包括一基材101、一第一抗腐蝕層110、一第二抗腐蝕層120與一第三抗腐蝕層130。第一抗腐蝕層110設置在基材101上,並且第一抗腐蝕層110與基材101接觸。第二抗腐蝕層120設置在第一抗腐蝕層110上,第三抗腐蝕層130設置在第二抗腐蝕層120上。換句話說,第二抗腐蝕層120是夾在第一抗腐蝕層110與第三抗腐蝕層130之間,形成多層次的抗腐蝕結構。而基材101例如為半導體設備之腔體的內表面層,此內表面層可由鋁所製成。
此外,第一抗腐蝕層110與第三抗腐蝕層130的厚度個別為5~20微米(µm),且第一抗腐蝕層110與第三抗腐蝕層130可為相同或不同的厚度;第二抗腐蝕層的厚度為100~250微米(µm)。因此,第一抗腐蝕層110、第二抗腐蝕層120與第三抗腐蝕層130的厚度並不相同。更明確的說,第二抗腐蝕層120的厚度比第一抗腐蝕層110與第三抗腐蝕層130的厚度都來得厚。在一實施例中,第二抗腐蝕層120與第一抗腐蝕層110的厚度比介於5~50之間;第二抗腐蝕層120與第三抗腐蝕層130的厚度比介於5~50之間。
在本實施例中,第一抗腐蝕層110與第三抗腐蝕層130是較為緻密的抗腐蝕層,而第二抗腐蝕層120則是相對鬆散的抗腐蝕層。透過第一抗腐蝕層110、第二抗腐蝕層120與第三抗腐蝕層130形成緻密-鬆散-緻密的多層次抗腐蝕結構,提供抗腐蝕特性以保護基材101。
接著,請參閱圖2至圖6,圖2至圖6所繪示為本發明抗電漿腐蝕薄膜結構的製作方法。首先,進行步驟S10,提供一基材101(如圖3所示)。接著,進行步驟S20,在基材101上以氣相沉積方法形成第一抗腐蝕層110(如圖4所示)。具體來說,第一抗腐蝕層110所使用的氣相沉積方法為電漿化學氣相沉積(PECVD)、原子層沉積(ALD)或物理氣相沉積(PVD),能夠形成較為緻密、不具備多孔性的第一抗腐蝕層110。緻密、不具備多孔性的第一抗腐蝕層110有效減少基材101釋出氣體,並可避免電漿腐蝕基材101而產生粉塵。同時可作為緩衝材料,增加第二抗腐蝕層120在抗電漿腐蝕薄膜結構100的附著性。
在一實施例中,若使用物理氣相沉積(PVD)形成第一抗腐蝕層110,其具體方式是選用Y
2O
3、YOF與YAG作為底材,並透過電子束轟擊蒸鍍(E-gun)與離子束輔助沉積來形成第一抗腐蝕層110。第一抗腐蝕層110形成的過程中,其參數控制為腔體溫度25℃~200℃、蒸鍍速率0.1~1.5nm/s、離子源電漿功率輔助電子束電流100~1500mA、電壓100-1500V、氣體流量氬氣10~50sccm、氧氣10~100sccm、製程壓力2.0E-2~1.0E-6 Torr。
在另一實施例中,若使用原子層沉積(ALD)形成第一抗腐蝕層110,具體來說是選用三(環戊二烯)釔(Y(Cp)
3)、三(2,2,6,6-四甲基-3,5-庚二酮酸)釔(Y(thd)
3)與三(乙基環戊二烯基)釔(Y(EtCp)
3)做為前驅物,在以水(H
2O)與氧(O
2)作為反應氣體,從經由原子層沉積形成第一抗腐蝕層110。第一抗腐蝕層110形成的過程中,反應氣體流量10~100sccm,腔體溫度100~400℃ 、製程壓力1~10 Torr。
接著,進行步驟S30,在第一抗腐蝕層110上以電漿噴塗形成一第二抗腐蝕層120(如圖5所示)。具體來說,是以氧化釔(Y
2O
3)、氟氧化釔(YOF)或釔鋁石榴石(YAG)為噴塗材料形成第二抗腐蝕層120。此外,還可對噴塗材料進行預熱,預熱的溫度約為100~300℃。並且在形成過程中,其設定參數為電弧電流300~600A、載台轉速5~30RPM、載氣氣體為氬氣(Ar)、氮氣(N
2),氣體流量10~30L/min。第二抗腐蝕層120是在第一抗腐蝕層110上形成,因此可保護第一抗腐蝕層,提高抗電漿腐蝕薄膜結構100的整體抗腐蝕性與耐用性。
接著,進行步驟S40,在第二抗腐蝕層120上氣相沉積方法形成第三抗腐蝕層130(如圖6所示)。具體來說,第三抗腐蝕層130所使用的氣相沉積方法為電漿化學氣相沉積(PECVD)、原子層沉積(ALD)或物理氣相沉積(PVD),能夠形成較為緻密、不具備多孔性的第三抗腐蝕層130。
在一實施例中,若使用物理氣相沉積(PVD)形成第三抗腐蝕層130,其具體方式是選用Y
2O
3、YOF與YAG作為底材,並透過電子束轟擊蒸鍍(E-gun)與離子束輔助沉積來形成第三抗腐蝕層130。第三抗腐蝕層130形成的過程中,其參數控制為腔體溫度25℃~200℃、蒸鍍速率0.1~1.5nm/s、離子源電漿功率輔助電子束電流100~1500mA、電壓100-1500V、氣體流量氬氣10~30sccm、氧氣10~100sccm、製程壓力2.0E-2~1.0E-6 Torr。
在另一實施例中,若使用原子層沉積(ALD)形成第三抗腐蝕層130,具體來說是選用三(環戊二烯)釔(Y(Cp)
3)、三(2,2,6,6-四甲基-3,5-庚二酮酸)釔(Y(thd)
3)與三(乙基環戊二烯基)釔(Y(EtCp)
3)做為前驅物,在以水(H
2O)與氧(O
2)作為反應氣體,從經由原子層沉積形成第三抗腐蝕層130。第一抗腐蝕層110形成的過程中,反應氣體流量10~100sccm,腔體溫度100~400℃ 、製程壓力1~10 Torr。
第三抗腐蝕層130與第一抗腐蝕層110均是經由氣相沉積方法形成,但不限於與第一抗腐蝕層110相同的氣相沉積方法形成(PECVD、ALD或PVD)形成。因此第三抗腐蝕層130為緻密、不具備多孔性的抗腐蝕層。第三抗腐蝕層130可填補第二抗腐蝕層120上的空隙,進一步提高抗電漿腐蝕薄膜結構100的表面耐受性。經過步驟S10~S40即完成抗電漿腐蝕薄膜結構100。
本發明之抗電漿腐蝕薄膜結構100透過以不同方法形成的第一抗腐蝕層110、第二抗腐蝕層120與第三抗腐蝕層130,進一步形成以緻密(第一抗腐蝕層110)、鬆散(第二抗腐蝕層120)、緻密(第三抗腐蝕層130)組成的抗腐蝕結構,其抗腐蝕特性接近等同厚度且完全緻密的抗腐蝕結構。因此,相較於完全緻密的抗腐蝕結構,本發明緻密、鬆散、緻密的抗腐蝕結構可用較少的時間與成本形成,並提供相當的抗腐蝕特性。
本發明說明如上,然其並非用以限定本發明所主張之專利權利範圍。其專利保護範圍當視後附之申請專利範圍及其等同領域而定。凡本領域具有通常知識者,在不脫離本專利精神或範圍內,所作之更動或潤飾,均屬於本發明所揭示精神下所完成之等效改變或設計,且應包含在下述之申請專利範圍內。
100:抗電漿腐蝕薄膜結構
101:基材
110:第一抗腐蝕層
120:第二抗腐蝕層
130:第三抗腐蝕層
S10~S40:流程圖步驟
圖1所繪示為本發明之抗電漿腐蝕薄膜結構。
圖2至圖6所繪示為本發明抗電漿腐蝕薄膜結構的製作方法。
100:抗電漿腐蝕薄膜結構
101:基材
110:第一抗腐蝕層
120:第二抗腐蝕層
130:第三抗腐蝕層
Claims (11)
- 一種抗電漿腐蝕薄膜結構,包括: 一基材; 一第一抗腐蝕層,設置於該基材上,並與該基材接觸; 一第二抗腐蝕層,設置於該第一抗腐蝕層上;及 一第三抗腐蝕層,設置於該第二抗腐蝕層上; 其中,該第一抗腐蝕層與該第三抗腐蝕層是經由氣相沉積方法形成; 其中,該第二抗腐蝕層是經由電漿噴塗形成。
- 如請求項1所述之抗電漿腐蝕薄膜結構,其中,氣相沉積方法為電漿化學氣相沉積(PECVD)、原子層沉積(ALD)或物理氣相沉積(PVD)。
- 如請求項1所述之抗電漿腐蝕薄膜結構,其中,該第一抗腐蝕層與該第三抗腐蝕層的厚度為5~20µm;該第二抗腐蝕層的厚度為100~250µm。
- 如請求項1所述之抗電漿腐蝕薄膜結構,其中,該第二抗腐蝕層與該第一抗腐蝕層的厚度比介於5~50之間;該第二抗腐蝕層與該第三抗腐蝕層的厚度比介於5~50之間。
- 如請求項1所述之抗電漿腐蝕薄膜結構,其中,該第一抗腐蝕層、該第二抗腐蝕層與該第三抗腐蝕層的材料包括氧化釔(Y 2O 3)、氟氧化釔(YOF)或釔鋁石榴石(Yttrium aluminum garnet,YAG)。
- 一種抗電漿腐蝕薄膜結構製造方法,包括: S10:提供一基材; S20:在該基材上以氣相沉積方法形成第一抗腐蝕層; S30:在該第一抗腐蝕層上以電漿噴塗形成一第二抗腐蝕層;及 S40:在該第二抗腐蝕層上以氣相沉積方法形成一第三抗腐蝕層。
- 如請求項6所述的抗電漿腐蝕薄膜結構製造方法,其中,在步驟S20中,氣相沉積方法為物理氣相沉積,
- 如請求項7所述的抗電漿腐蝕薄膜結構製造方法,其中,該物理氣相沉積,參數控制為:腔體溫度25℃~200℃、蒸鍍速率0.1~1.5nm/s、離子源電漿功率輔助電子束電流100~1500mA、電壓100-1500V、氣體流量氬氣10~50sccm、氧氣10~100sccm、製程壓力2.0E-2~1.0E-6 Torr。
- 如請求項6所述的抗電漿腐蝕薄膜結構製造方法,其中,在步驟S20中,氣相沉積方法為原子層沉積,
- 如請求項9所述的抗電漿腐蝕薄膜結構製造方法,其中,該原子層沉積之參數控制為:反應氣體流量10~100sccm,腔體溫度100~400℃ 、製程壓力1~10 Torr。
- 如請求項6所述的抗電漿腐蝕薄膜結構製造方法,其中,在步驟S30中,該電漿噴塗之參數控制為:電弧電流300~600A、載台轉速5~30RPM、載氣氣體為氬氣(Ar)、氮氣(N 2),氣體流量10~30L/min。
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