TWI282146B - Method of forming insulating film in semiconductor device - Google Patents
Method of forming insulating film in semiconductor device Download PDFInfo
- Publication number
- TWI282146B TWI282146B TW093138940A TW93138940A TWI282146B TW I282146 B TWI282146 B TW I282146B TW 093138940 A TW093138940 A TW 093138940A TW 93138940 A TW93138940 A TW 93138940A TW I282146 B TWI282146 B TW I282146B
- Authority
- TW
- Taiwan
- Prior art keywords
- insulating film
- mode
- inner insulating
- surface treatment
- heat treatment
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000004065 semiconductor Substances 0.000 title claims abstract description 20
- 230000007547 defect Effects 0.000 claims abstract description 37
- 239000006227 byproduct Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 29
- 238000004381 surface treatment Methods 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 21
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 15
- 229910052731 fluorine Inorganic materials 0.000 claims description 15
- 239000011737 fluorine Substances 0.000 claims description 15
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000012298 atmosphere Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 8
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 claims description 6
- 239000001272 nitrous oxide Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001882 dioxygen Inorganic materials 0.000 claims description 4
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 238000009832 plasma treatment Methods 0.000 claims description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims 2
- 229910052770 Uranium Inorganic materials 0.000 claims 1
- 239000003989 dielectric material Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- -1 tetraethyloxonium hydride Chemical compound 0.000 claims 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims 1
- 238000000137 annealing Methods 0.000 abstract description 11
- 238000010943 off-gassing Methods 0.000 abstract description 8
- 238000007669 thermal treatment Methods 0.000 abstract 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 2
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02337—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment treatment by exposure to a gas or vapour
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/31051—Planarisation of the insulating layers
- H01L21/31053—Planarisation of the insulating layers involving a dielectric removal step
- H01L21/31055—Planarisation of the insulating layers involving a dielectric removal step the removal being a chemical etching step, e.g. dry etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02164—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon oxide, e.g. SiO2
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Formation Of Insulating Films (AREA)
- Element Separation (AREA)
Description
1282146 九、發明說明: 【發明所屬之技術領域】 本發明係有關於一種形成半導體裝置之絕緣膜的方法, 以及更特別地係有關於一種形成半導體裝置之絕緣膜的方 法,其中可最小化在該絕膜膜中所產生之缺陷。 【先前技術】 在半導體之製程中,一絕緣膜係用於內層絕緣或內部佈 線絕緣。此絕緣膜使用四乙基氧矽酸鹽(Tetraethyl Orthosilicate,TEOS)、硼磷石夕酸鹽玻璃(Boron Phosphorous Silicate Glass,BPSG)、旋塗式介電材料(Spin On Dielectric) 等。其中,一 LP(低壓)-TE〇S膜具有好的階梯覆蓋、好的 厚度均勻度、好的生產率等。因此,該LP-TEOS膜已廣泛 地使用於不需要塡充或間隔物之絕緣膜。然而,該LP-TEOS 膜在品質上並不穩定及會在隨後熱處理中產生嚴重釋氣現 象(out-gassing). 更特別地,如第1圖所示,如果在該LP-TEOS膜上沉積 其它膜(例如:佈線)之後,實施一熱處理,則會因釋氣現象 而產生許多點狀之缺陷。第1圖係電子顯微鏡掃描 (scanning-electron microscope, SEM)圖 75 ’ 其顯不在一 TEOS 膜上所產生之點狀缺陷。在第1圖中’元件符號1 〇 1表示 一 TEOS膜,102表示一氮化膜,以及1〇3表示一缺陷點。 此點缺陷在形成圖案之製程中會造成缺陷的圖案(例如: 斷開)。 第2圖係顯示因缺陷點之產生所造成的缺陷圖案之圖 不 ° 1282146 參考第2圖,如果形成一 TEOS膜,在該TEOS膜上沉積 鈦/氮化鈦(Ti/TiN)以及實施退火及圖案化處理,則會在整 個晶圓中產生超過4000個像凸塊及開口或變薄之缺陷。發 現到會在約3 1 7晶粒中產生這些缺陷。 這些缺陷係由TEOS中固有之品質所造成的。亦即,該 LP-TE0S膜具有一 Si(〇C2H5)4形狀之分子結構及具有大量 氫碳基(CxHy-radical)。此LP-TE0S膜具有下列特性:在遭遇 一隨後熱處理時,該LP-TEOS膜會揮發。事實上,如果在 氮氣環境中800°C溫度下實施1小時之退火,則該LP-TEOS ® 膜會減少約7 · 5 %之厚度。此量相當於一明顯高數値。如果 未能平順地產生釋氣現象或產生副產物,則點狀之缺陷會 存在於該LP-TE0S膜之表面上。 第3圖係顯示在該TEOS膜之表面上所存在的雜質之測 量結果的特性曲線圖。 從第3圖可看出二次離子質譜儀(secondary i〇n mass spectroscopy, SIMS)分析結果不像一般絕緣膜,在該TEOS 膜之整個厚度上方的表面上存在有大量之氫及碳成分。 參 在該TEOS膜中之高位準的氣體成分在一隨後熱處理 中作爲一無限釋氣源(out-gassing sources),以及因而造成 一致的問題。更特別地,如果是圖案製程,在該T E 0 S膜 之表面上的缺陷點或碳成分與一光阻反應,以造成導線在 一凸部上會斷開或變薄的故障。 【發明內容】 因此,有鑑於上述問題而提出本發明,以及本發明之一 目的在於提供一形成半導體裝置之絕緣膜的方法,其中以 1282146 形成該絕緣膜、實施退火處理以去除包含於該絕緣膜中之 釋氣源以及藉由熱處理去除在該絕緣膜之表面上所形成之 缺陷點、副產物及碳氫基的方式,來最小化在一絕緣膜之 表面上的缺陷之產生以及阻止在該絕緣膜上形成像斷開或 薄圖案之故障,因而可改善製程之可靠度及該裝置之電 性。 爲了完成上述目的,依據本發明之一實施例,提供一種 在半導體裝置中形成絕緣膜之方法,其包括下列步驟:在一 半導體基板上形成一內層絕緣層;以及實施熱處理,以便去 除包含在該內層絕緣膜中之釋氣源。 在上述中,該內層絕緣膜係LP-TEOS、BPSG及SOD之任 何一者所構成。 該熱處理能夠在氧氣體環境、一氧化二氮氣體環境或真 空狀態中以快速熱處理(RTP)模式來實施。在此時,該RTP 最好是在70(TC- 1 000°C溫度範圍內下實施20- 1 00秒。 同時,該熱處理可以在氧氣體環境中、一氧化二氮氣體 環境或一真空狀態中在一反應爐中實施。在此時,該熱處 理最好是在700°C- 1 000°C溫度範圍內實施30分鐘至1小 該方法進一步可包括下列步驟:在實施該熱處理之後,對 該內層絕緣膜施加表面處理,以去除在該內層絕緣膜之表 面上所吸收之釋氣源或副產物或者在該內層絕緣膜之表面 上所形成之點缺陷。 在此時,該表面處理可在一氧氣電漿處理模式、一電漿 回蝕刻模式、一濕式回飩刻模式或一化學機械硏磨模式中 1282146 實施。 在此時,該氧氣電漿處理模式之表面處理可實施10-60 秒,同時施加200- 1 000 W之電漿功率及供應300-700 sccm 之氧氣流量。 該電漿回蝕刻模式之表面處理可使用以CxFy爲主或NF 爲主之含氟氣體實施10-50秒,同時在10 mTorr-50 mTorr 壓力下施加300-500 W之偏壓。在此時,該含氟氣體可使 用CHF3、CF4及C3F8中之一或其至少一混合氣體,以及可 將該含氟氣體之流量速率設定爲10-200 seem。 Φ 該濕式蝕刻模式之表面處理可使用一以NH4F爲主或NF 爲主之含氟溶液作爲一蝕刻劑在常溫至7 0°C溫度下實施 1-10分鐘。在此時,該含氟溶液最好是使用一 DHF溶液, 其中以50:1至200:1之比率混合H2〇及HF,或者使用一緩 衝氧化矽蝕刻液(B0E)溶液,其中以100:1至300:1之比率 來混合NH4F及DHF。 在化學機械硏磨模式之表面處理中,最好是將一目標硏 磨厚度設定至100A以下,以及磨漿係使用以二氧化矽爲主 之磨漿。 【實施方式】 現在,將配合所附圖式來描述依據本發明之較佳實施 例。因爲要使熟習該項技藝之一般人士能瞭解本發明而提 供較佳實施例,所以可以不同方式來修改該等較佳實施 例’以及本發明之範圍並非局限於稍後所描述的較佳實施 例。再者,在圖式中,爲了便於說明及澄明而誇大每一層 之厚度及尺寸。相同元件符號係用以識別相同或相似部 1282146 分。同時,如果描述一膜位於另一膜或一半導體基板"上", 該膜可直接接觸該另一膜或該半導體基板,或者一第三膜 可介於該膜與該另一膜或該半導體基板之間。 第4a至4d圖係用以說明依據本發明之一在半導體裝中 形成絕緣膜的方法之剖面圖。 參考第4a圖,在一半導體基板401上形成一內層絕緣膜 402’其中在該半導體基板上具有用以形成一半導體裝置之 各種元件(未顯示),例如:電晶體、電容器、快閃記憶體單 元及金屬佈線。 在此時,該內層絕緣膜402可藉由LP-TE〇S、BPSG或SOD 來形成。現將以該內層絕緣膜402係由LP-TEOS所形成之 情況爲範例來描述。 參考第4b圖,在形成該內層絕緣膜402之後,實施退火 處理,以便去除包含在該內層絕緣膜4 0 2中之釋氣源。 該內層絕緣膜402包含例如碳、氫及碳氫基之大量成分。 這些成分會全部變成釋氣源。如果無法使包含在該內層絕 緣膜402中之大量成分平順地實施釋氣源之釋氣,則會在 該內層絕緣膜402之表面上形成副產物。因此,會形成大 量具有點狀之缺陷。 爲了防止此問題,在形成該內層絕緣膜402之後,實施 退火處理。 此熱處理可在一快速熱處理(RTP)模式中或在一高於沉 積該內層絕緣膜402之溫度下的反應爐中實施。 實際上,如果在該RTP模式中實施該退火處理,則該退 火處理可在氧氣或一氧化二氮氣體環境中或者在一真空狀 1282146 態中在700QC- 1 000°C溫度範圍中實施20- 1 00秒。 如果在該反應爐中實施該退火處理,則該退火處理可在 氧氣或一氧化二氮氣體環境中或者在一真空狀態中在 7 00°C- 1 000°C溫度範圍中實施30分鐘至1小時。 參考第4c圖,如果藉由RTP來排放在該內層絕緣膜402 中所包含之釋氣源,則可減少大量之該內層絕緣膜4 0 2中 所包含之釋氣源。然而,在該內層絕緣膜402之表面上會 殘留該釋氣源或副產物或者會形成例如點之缺陷。 第5圖係顯示在實施該熱處理之後該內層絕緣膜之表面 上的缺陷之圖式。 從第5圖可看出雖然在形成該內層絕緣膜402之後實施 熱處理,但是亦會產生例如凸部及開口或變薄之缺陷。然 而,可看出在晶圓中之已明顯減少的缺陷總數爲377,以及 幾乎減少一半之具有缺陷的晶粒數目爲155。 參考第4d圖,爲了去除第4c圖中所述之例如該釋氣源、 副產物或點之缺陷,可使該內層絕緣膜402經歷表面處理。 此表面處理可在氧氣電漿處理、電漿回蝕刻、濕式回蝕 刻或化學機械硏磨模式中實施。 如果該表面處理係在氧氣電漿處理模式中實施,則該表 面處理可實施10-60秒,同時施加200- 1 000 W之電漿功率 及供應300-700 seem之氧氣流量。 如果該表面處理係在該電漿回蝕刻模式中實施,則該表 面處理可使用一 CxFy爲主或NF爲主之含氟氣體實施10-50秒,同時在10 mTon-50 mTorr之壓力下施力口 300-500 W 之偏壓。在此時,該含氟氣體可使用CHF3、CF4及C3F8中 1282146 之一或其至少一混合氣體,以及可將該含氟氣體之流量速 率設定爲10-200 seem。 如果該表面處理係在該濕式蝕刻模式中實施,則該表面 處理可使用一以NH4F爲主或NF爲主之含氟溶液作爲一蝕 刻劑在常溫至70°C溫度下實施1-1〇分鐘。在此時,該含 氟溶液可使用一 D H F溶液,其中以5 0 :1至2 0 0 : 1之比率混 合Η20及HF,或者使用一緩衝氧化矽蝕刻液(β〇Ε)溶液, 其中以100:1至300:1之比率來混合NH4F及 DHF。 如果該表面處理係在該化學機械硏磨模式中實施,則因 β 爲此處理之實施係爲了表面處理或缺陷去除而非硏磨,所 以最好是將一目標硏磨厚度設定至1 〇 〇 Α以下。 第6圖係顯示在實施一表面處理之後在一內層絕緣膜之 表面上的缺陷之圖式。 從第6圖可看出雖然在形成該內層絕緣膜402之後,實 施熱處理,但是亦會產生例如凸部及開口或變薄之缺陷。 然而,可看出在晶圓中之已明顯減少的缺陷總數爲1 44,以 及已明顯減少之具有缺陷的晶粒數目爲1 3 7。 · 如上所述’依據本發明,形成一絕緣膜,以及然後實施 退火處理’以去除在該絕緣膜中所包含之釋氣源。然後, 藉由熱處理去除在該絕緣膜之表面上所形成之缺陷點、副 產物或碳氫基。因此,可最小化該絕緣膜之表面上的缺陷 之產生’以及阻止該絕緣膜上所形成之例如斷開或薄圖案 的故障。因此,本發明之優點在於:可改善製程之可靠度及 裝置之電性。 雖然已完成有關於上述較佳實施例之說明,但是可了解 1282146 的是熟習該項技藝之一般人士在不脫離本發明之精神及範 圍及所附申請專利範圍下可實施對本發明之變更及修改。 【圖式簡單說明】 第1圖係電子顯微鏡掃描(scanning-electron microscope, SEM)圖示,其顯示在一 TEOS膜上所產生之點狀的缺陷; 第2圖係顯示因缺陷點之產生所造成的缺陷圖案之圖 不; 第3圖係顯示在一 TEOS膜之表面上所存在的雜質之測 量結果的特性曲線圖; 第4a至4d圖係用以說明依據本發明之一在半導體裝中 形成絕緣膜的方法之剖面圖; 第5圖係顯示在實施一熱處理之後在一內層絕緣膜之表 面上的缺陷之圖式;以及 第6圖係顯示在實施一表面處理之後在一內層絕緣膜之 表面上的缺陷之圖式。 【主要元件符號說明】 101 TEOS m 102氮化膜 103缺陷點 401半導體基板 402內層絕緣膜 403缺陷
Claims (1)
1282146 « - ~ Λ’w--知如一“说,.1 __一〜〜__________I 第9 3 1 3 8940號「半導體元件內形成絕緣膜之方法」專利案 (2006年12月修正) 十、申請專利範圍: 1. 一種在半導體裝置中形成絕緣膜之方法,包括下列步驟: 在一半導體基板上形成一內層絕緣膜,其中該內層絕 緣膜係由低壓四乙基氧矽酸鹽(LP-TEOS)、硼磷矽酸鹽玻 璃(BPS G)、旋塗式介電材料(SOD)之任何一者所構成;以 及 實施熱處理,以便去除包含在該內層絕緣膜中之釋氣 源,其中該熱處理係在氧氣體環境、一氧化二氮氣體環 境或真空狀態中以快速熱處理(RTP)模式來實施。 2. 如申請專利範圍第1項所述之方法,其中該RTP係在 700°C- 1 000°C溫度範圍內下實施20- 1 00秒。 3 ·如申請專利範圍第1項所述之方法,其中該熱處理係在 氧氣體環境中、一氧化二氮氣體環境或一真空狀態中在 一反應爐中實施。 4 ·如申請專利範圍第3項所述之方法,其中該熱處理係在 700°C- 1 000°C溫度範圍內實施30分鐘至1小時。 5 ·如申g靑專利圍弟1項所述之方法,進一*步包括下列步 驟:在實施該熱處理之後,對該內層絕緣膜施加表面處 理,以去除在該內層絕緣膜之表面上所吸收之釋氣源或 副產物或者在該內層絕緣膜之表面上所形成之點缺陷。 6 ·如申請專利範圍第5項所述之方法,其中該表面處理係 在一氧氣電漿處理模式、一電漿回鈾刻模式、一濕式回 蝕刻模式或一化學機械硏磨模式中實施。 1282146 f η / 7. 如申請專利範圍第6項所述之方法,其中該氧氣電漿處 理模式之表面處理係實施10-60秒,同時施加200- 1 000 W之電漿功率及供應300-700 seem之氧氣流量。 8. 如申請專利範圍第6項所述之方法,其中該電漿回蝕刻 模式之表面處理係使用以CxFy爲主或NF爲主之含氟氣 體實施10-50秒,同時在10 mTorr-50 mTorr壓力下施加 3 00-5 00 W之偏壓。 9 ·如申請專利範圍第8項所述之方法,其中該含氟氣體可 使用CHF3、CF4及C3F8中之一或其至少一混合氣體。 1 〇.如申請專利範圍第9項所述之方法,其中將該含氟氣體 之流量速率設定爲1 0-200 sccm。 1 1 ·如申請專利範圍第5項所述之方法,其中該濕式飩刻模 式之表面處理可使用一以NH4F爲主或NF爲主之含氟溶 液作爲一蝕刻劑在常溫至70°C溫度下實施1-1〇分鐘。 1 2 ·如申請專利範圍第1 1項所述之方法,其中該含氟溶液 使用一 DHF溶液,其中以50:1至200:1之比率混合H2〇 及HF,或者使用一 B〇E溶液,其中以ι〇〇:ι至300:1之 比率來混合NH4F及DHF。 1 3 ·如申請專利範圍第5項所述之方法,其中在一化學機械 硏磨模式之表面處理中,將一目標硏磨厚度設定至1〇〇A 以下,以及磨漿係使用以二氧化矽爲主之磨漿。
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CN103500711B (zh) * | 2013-10-15 | 2017-06-06 | 深圳市华星光电技术有限公司 | 薄膜晶体管的制造方法 |
CN104752315B (zh) * | 2013-12-25 | 2018-03-06 | 旺宏电子股份有限公司 | 半导体元件及其制造方法 |
CN110699663B (zh) * | 2019-09-09 | 2022-11-22 | 长江存储科技有限责任公司 | 金属薄膜沉积方法 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03280435A (ja) * | 1990-03-28 | 1991-12-11 | Seiko Epson Corp | 薄膜半導体装置の製造方法 |
US5503882A (en) * | 1994-04-18 | 1996-04-02 | Advanced Micro Devices, Inc. | Method for planarizing an integrated circuit topography |
US5413940A (en) * | 1994-10-11 | 1995-05-09 | Taiwan Semiconductor Manufacturing Company | Process of treating SOG layer using end-point detector for outgassing |
US6489255B1 (en) * | 1995-06-05 | 2002-12-03 | International Business Machines Corporation | Low temperature/low dopant oxide glass film |
US5679211A (en) * | 1995-09-18 | 1997-10-21 | Taiwan Semiconductor Manufacturing Company, Ltd. | Spin-on-glass etchback planarization process using an oxygen plasma to remove an etchback polymer residue |
US5674783A (en) * | 1996-04-01 | 1997-10-07 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method for improving the chemical-mechanical polish (CMP) uniformity of insulator layers |
US5849640A (en) * | 1996-04-01 | 1998-12-15 | Vanguard International Semiconductor Corporation | In-situ SOG etchback and deposition for IMD process |
US5849635A (en) * | 1996-07-11 | 1998-12-15 | Micron Technology, Inc. | Semiconductor processing method of forming an insulating dielectric layer and a contact opening therein |
US6228781B1 (en) * | 1997-04-02 | 2001-05-08 | Applied Materials, Inc. | Sequential in-situ heating and deposition of halogen-doped silicon oxide |
TW405209B (en) * | 1998-04-20 | 2000-09-11 | United Microelectronics Corp | Method for improving the gassing of spin coating type glass |
JPH11330415A (ja) | 1998-05-15 | 1999-11-30 | Matsushita Electric Ind Co Ltd | 誘電体薄膜及びその形成方法 |
JP3278403B2 (ja) * | 1998-11-05 | 2002-04-30 | 株式会社キンレイ | 撚り線機 |
US6593195B1 (en) * | 1999-02-01 | 2003-07-15 | Agere Systems Inc | Stable memory device that utilizes ion positioning to control state of the memory device |
KR100308213B1 (ko) * | 1999-02-12 | 2001-09-26 | 윤종용 | 반도체 장치를 위한 저유전 층간 절연막의 제조 방법 |
JP2000232102A (ja) | 1999-02-12 | 2000-08-22 | Matsushita Electric Ind Co Ltd | 誘電体膜の製造方法 |
US6180540B1 (en) * | 1999-02-18 | 2001-01-30 | Taiwan Semiconductor Manufacturing Company | Method for forming a stabilized fluorosilicate glass layer |
US6261975B1 (en) * | 1999-03-04 | 2001-07-17 | Applied Materials, Inc. | Method for depositing and planarizing fluorinated BPSG films |
KR100470165B1 (ko) * | 1999-06-28 | 2005-02-07 | 주식회사 하이닉스반도체 | 반도체소자 제조 방법 |
US6165915A (en) * | 1999-08-11 | 2000-12-26 | Taiwan Semiconductor Manufacturing Company | Forming halogen doped glass dielectric layer with enhanced stability |
JP2001189381A (ja) * | 1999-12-27 | 2001-07-10 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
KR20020002814A (ko) * | 2000-06-30 | 2002-01-10 | 박종섭 | 반도체 소자의 층간 절연막 형성방법 |
KR20020011229A (ko) * | 2000-08-01 | 2002-02-08 | 박종섭 | 커패시터 제조 방법 |
US6503840B2 (en) * | 2001-05-02 | 2003-01-07 | Lsi Logic Corporation | Process for forming metal-filled openings in low dielectric constant dielectric material while inhibiting via poisoning |
US6677251B1 (en) * | 2002-07-29 | 2004-01-13 | Taiwan Semiconductor Manufacturing Co., Ltd | Method for forming a hydrophilic surface on low-k dielectric insulating layers for improved adhesion |
KR20040048504A (ko) * | 2002-12-03 | 2004-06-10 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
US6955997B1 (en) * | 2003-05-16 | 2005-10-18 | Advanced Micro Devices, Inc. | Laser thermal annealing method for forming semiconductor low-k dielectric layer |
-
2004
- 2004-10-07 KR KR1020040079903A patent/KR100616187B1/ko not_active IP Right Cessation
- 2004-12-15 TW TW093138940A patent/TWI282146B/zh not_active IP Right Cessation
- 2004-12-15 DE DE102004060692A patent/DE102004060692A1/de not_active Withdrawn
- 2004-12-22 US US11/022,460 patent/US20060079097A1/en not_active Abandoned
- 2004-12-24 JP JP2004373086A patent/JP2006108607A/ja active Pending
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2005
- 2005-02-28 CN CNA2005100525208A patent/CN1758421A/zh active Pending
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DE102004060692A1 (de) | 2006-04-13 |
TW200612516A (en) | 2006-04-16 |
JP2006108607A (ja) | 2006-04-20 |
US20060079097A1 (en) | 2006-04-13 |
KR100616187B1 (ko) | 2006-08-25 |
KR20060031025A (ko) | 2006-04-12 |
CN1758421A (zh) | 2006-04-12 |
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