TWI320954B - Semiconductor component and method of manufacture - Google Patents

Semiconductor component and method of manufacture Download PDF

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TWI320954B
TWI320954B TW092130193A TW92130193A TWI320954B TW I320954 B TWI320954 B TW I320954B TW 092130193 A TW092130193 A TW 092130193A TW 92130193 A TW92130193 A TW 92130193A TW I320954 B TWI320954 B TW I320954B
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gate structure
region
adjacent
extension
semiconductor material
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TW200414372A (en
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Derick Wristers
Chad Weintraub
James F Buller
Jon Cheek
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Advanced Micro Devices Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007—Multistep manufacturing processes
    • H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409—Unipolar field-effect transistors
    • H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
    • H01L29/66568—Lateral single gate silicon transistors
    • H01L29/66659—Lateral single gate silicon transistors with asymmetry in the channel direction, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
    • 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
    • H01L21/26—Bombardment with radiation
    • H01L21/263—Bombardment with radiation with high-energy radiation
    • H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
    • H01L21/26586—Bombardment with radiation with high-energy radiation producing ion implantation characterised by the angle between the ion beam and the crystal planes or the main crystal surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/10—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
    • H01L29/1025—Channel region of field-effect devices
    • H01L29/1029—Channel region of field-effect devices of field-effect transistors
    • H01L29/1033—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure
    • H01L29/1041—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure with a non-uniform doping structure in the channel region surface
    • H01L29/1045—Channel region of field-effect devices of field-effect transistors with insulated gate, e.g. characterised by the length, the width, the geometric contour or the doping structure with a non-uniform doping structure in the channel region surface the doping structure being parallel to the channel length, e.g. DMOS like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007—Multistep manufacturing processes
    • H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409—Unipolar field-effect transistors
    • H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
    • H01L29/6656—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using multiple spacer layers, e.g. multiple sidewall spacers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/78—Field effect transistors with field effect produced by an insulated gate
    • H01L29/7833—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
    • H01L29/7835—Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's with asymmetrical source and drain regions, e.g. lateral high-voltage MISFETs with drain offset region, extended drain MISFETs
    • 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
    • H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
    • H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
    • H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
    • H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
    • H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
    • H01L21/8232—Field-effect technology
    • H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
    • H01L21/8238—Complementary field-effect transistors, e.g. CMOS
    • H01L21/823807—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007—Multistep manufacturing processes
    • H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409—Unipolar field-effect transistors
    • H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
    • H01L29/665—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned silicidation, i.e. salicide

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Description

1320954 ______ [發明所屬之技術領域] 尤4曰一種有關閘極邊 本發明一般係有關半導體組件 緣重疊延伸的半導體組件。 [先岫技術] 例如微處理器、數位信號處理器、微控Μ、記憶體 1 ’及其類似之積體t路—般均含有數百萬個的絕緣閉 A =電晶體（IGFETs)。由於降低製造成本及增加電路速 3 ,而长積胆電路製造商縮小構成積體電路之絕緣閘極 場效電晶體的體積而使其可從單一月半導體晶圓製造出更 多的積體電路。雖然較小的電晶體可增加操作速度，但是 例如減少源極-汲極崩潰電壓 '增加接合面電容、以及不穩 =臨限電壓的次要性能因素均對電晶體的性能造成負面的 衫響。整體而言，這些不良的性能影響稱之為短通道效應 (short channel effects)。 一般技術為藉由調節通道區内的電場緩和此短通道效 應，以最小化汲極空乏區的尖峰橫向電場 nc field)降低橫向電場的一種技術為使其包含源極 和汲極延伸區。源極延伸區延伸入鄰接閘極結構一側邊的 矽基板中，並且汲極延伸區延伸入鄰接閘極結構另一側邊 的石夕基板中。該源極和沒極延伸區為延伸於閘極結構的之 了。該沒極延伸區可減少絕緣㈣場效電晶體之汲極區的 最大電場0 ίό可減少能夠從;及極區穿随進入閉極氧化物 的電子數目。ep使經此改善，没極區内的電子數目仍足以 92464 5 r _ 丨 - * 轉 本發明為提供一種製造例如絕緣閘極半導 月豆、.見件的方法。絕緣閘極半導體梦 絕緣閘極場致雷曰脚 $ 4置亦％為 %严粗、場效電晶體、半導體組 體裝置。根據本發明之伽—^丨牛^ 月之一個貫施例，利用斜角植入（angled implant)形成非斜 . δ 户对％源極/汲極延伸區。利用非對稱植入 使源極延伸區和闡4 〜。構之間重疊’因而降低電晶體的源 。电。*外，非對稱植入可減少閘極結構和汲極延伸 區之間的重疊，（5|品7 可降低閘極至汲極（gate-t〇-drain)的穿 随電流及及極側的米勒電容（Μϋι。叫。再者， 此斜角植入不需昂貴的光罩處理過程即可形成非對稱源極 和>及極延伸區。根據本發明的另一實施例，源極側晕圏區 形成於其他推雜區形成之前，而使該暈圈區更接近通道區 的中央，因此當半導體組件内含非對稱源極和没極延伸區 時可提供較佳的臨限電壓下拉（r〇u_〇ff)控制。 第1圖為根據本發明之實施例在開始加工階段所局部 完成之絕‘緣閘極場效電晶體⑽的部分放大橫到面圖。第 1圖中顯示為具P型導電性之半導體基板或材料1〇2,該半 導體基板或材'料102含有主要表面104。根據實例；導 體基板102為具有<1〇〇>晶格方向之矽及每立方公分含h 1〇丨6個離子（ions/cm3)量級之p型摻雜物濃度。或者，半導 體基板102可由具有<1〇〇>晶格方向的高度摻雜矽晶圓以 及設置於該半導體基板1 02上之低摻雜磊晶層 layer)所構成。其他適合基板102的材料包括矽鍺鍺載 矽絕緣體（Silicon-On-Insulator，SOI)等。本發明並非僅褐 92464 7 1320954 限於上述基板1 02的導電性種類。根據本發明之實施例， 選擇形成N通迢絕緣閘極場效電晶體的導電性種類。然 而，該半導體基板亦可選擇形成？通道絕緣問極場效電晶 體或例如互補金屬氧化物半導體（CM〇s)電晶體之互補絕 緣閑極場效電晶體的導電性種類。此外，可於基板！〇/中 形成例如P型導電性基板+之N井（N_well)4 N型導電性 基板中之P井（P-well)的摻雜井。p_通道和N通道電晶體 係形成於個別的摻雜井内。應瞭解圖式中雖未顯示，但可 於半導體基板1 02或摻雜井内進行臨限電壓調節植入。 於主要表面1〇4上形成介電材料層106。介電層106 做為間極介電材料並且可由熟習該項技藝者所習知的技術 而形成’包括熱氧化作用、化學氣相沈積、以及其他類似 方法。介電層106的厚度約從5埃⑷至約5〇〇 a。利用 例如化學氣相沈積技術於介電層1〇6上形成複晶石夕層 ⑽。適當的複晶石夕層108厚度範圍為介於約 A和約 2，_A之間。根據實例，彳電層⑽的厚度為·入以 及複晶石夕層108的厚度WA。於複晶石夕層1〇8上沈 積先阻層’並圖案化該光阻層以形成勒刻光罩光阻 層的沈積和圖案化技術已為熟習該項技藝者所習知。 現在參考第2圖，利用姓刻複晶石夕常用的敍刻化學技 ㈣刻複晶石夕層1〇8°根據實例’利用非等向性反應性離 子姓刻(R_±刻複晶石夕層1〇8。姓刻複晶石夕的方法已為熟 習該項技藝者所習>。在除去複晶㈣_的暴露部分之 後’鞋刻化學係轉變成非等向性姓刻氧化物層1〇6。此非 92464 8 1320954 等向性姓刻氧化物層106終止於主要表面1〇4上。然後移 除蝕刻光罩層110。複晶矽層108和介電層1〇6的殘留部 分108A和106A分別形成具有側壁114和116及上表面 11 8的閘極結構1丨2。 繼續麥考第2圖，於半導體基板1〇2内植入ρ型導電 性的摻雜物，例如硼或銦，以形成摻雜區i 2〇。摻雜區丄 係稱為是源極側暈圈區。植入時較佳為呈角度或斜角而以 相對方、大致上垂直（或法線）主要表面i 〇 4之方向的角度Θ 進行植入，其中角度0為小於9〇度並且較佳為從約2〇度 至約50度間之範圍。角度^的角度更佳為介於從約w度 至約45度之間的範圍。源極側暈圈植入（hai〇 的— 組適當參數包括植入離子量介於約1χ 1〇13離子/平方公分 和約1X 離子/平方公分之間的ρ型導電性摻雜物二二 利用範圍介於約100電子伏特（eV)和約5〇千電子伏特 (KeV)之間的植入能量。角度摻雜物植入係以箭頭代 表之。此處形成N_通道絕緣閘極場效電晶體的植入能量和 植入劑$僅供舉例之用③，而纟發明並非僅侷限於該範圍 之值。如熟習該項技藝者所習知’ p通道絕緣閘極場效電 晶體可有不同的植人能量和植人劑量。例如，形成p通道 絕緣閉極場效電晶體的適當植入數目可介於約i KeV至約 100 KeV之間的範圍。植入物可利用快速熱退火⑽製程 或習知的爐管退火製程進行處理。根據實例，II由加熱至 約800度攝氏（t:)和約131峨之範圍間的溫度將半導體裝 置1 00込火半導體組件1 00的退火可使摻雜物朝垂直和 92464 9 1320954 橫向方向擴散。 、仍麥考苐2圖，介電材料層1 26沈積於閘極結構i】2 以及主要表面1 04的暴露部分之上。根據實例，介電材料 曰126如藉例如化學氣相沈積之沈積技術或藉諸如閘極導 體1〇:Α和例如矽102之氧化的長出技術所形成之氧化’ 物。較佳之氧化物層126的厚度為介於約5〇 A和約 A之間的範圍。 ’ 現在參考第3圖，氧化物層126係非等向性地姓刻而 形成間隔體m和128並暴露出主要表面1〇4。例如碎之 N塑導電性摻雜物係植入半導體材料1〇2而形成摻雜區 ⑶和138。摻雜區136和138之部分⑽和138八分別 做為㈣Μ極的延伸。此延伸植入較佳為一種單扭 (single twist) ' 成角唐式 44· & ^ 角度次斜角的植入，可使角度或斜角植 大致上垂直（或法線）主要表面._之方向（以虛線 為二示)相對角度“，其中角度…於度並且較佳 π „ 犯固角度《的範圍更佳為介於從 :又至約1〇度之間的範圍。如熟習該項技藝者所習知， 早扭植入為晶圓不隨著垂直主 要表面之軸旋轉，以便 之非對稱性延伸植入。源極和-極延伸植入的適
===範圍在…和約_間之植入能量 不植入劑量範圍介於約iX 1〇U . / τ 離子/平方公分和約lx 10·6 離子/平方公分之間的Ν型導雷卜4 ρ 植入以这_ . 包眭摻雜物。角度之摻雜物的 木Ρ "員130代表之。該能量和劑量僅供舉例之用途， 本务明並非以此為限。植入物 了利用快速熱退火（RTA)製 92464 10 1320954 程或習知的爐管退火製程進行處理。根據實例，藉由加熱 至約80(TC和約Moot之範圍間的溫度將半導體裝置1〇〇 退火。半導體組件100的退火可使摻雜物朝垂直和橫向方 向擴散《因此，N型摻雜物在閘極結構U2之下從側邊114 朝閘極結構的側邊116冑散，並且可在該閉極結構u2 之側邊11 6之下擴散。 由於源極和汲極延伸區136A和138A係分別利用單 扭、成傾斜角度植入而形成，故對閘極結構112而言為非 對稱的《源極延伸區136A延伸入半導體基板1〇2並且從 側邊114延伸於閘極結構112之下，同時汲極延伸區138A 延伸入半導體基板102並且可從另一側邊116延伸於閘極 結構11 2之下或從閘極結構丨i 2的側邊u 6橫向地隔開。 因此本發明著重於在閘極結構112之下延伸之没極延伸 區1 3 8 A的貪施例以及未於閘極結構丨丨2之下延伸之汲極 L伸區1 j 8 A的貫施例。對於從側邊1丨6 .隔開汲極延伸區 I 3 8 A的實施例而言’介於汲極延伸區1 3 8 a和側邊丨丨6之 間的距难D在某種程度上係視植入角度和閘極結構1丨2的 高度而定。此外，退火製程影響汲極延伸區138A和側邊 II 6之間的距離。當退火溫度較高及退火時間愈長時，及 極延伸區13 8 A朝側邊U 6擴散的距離愈近。由於源極延 伸區136A靠近第一側邊114，故其可謂接近或鄰接第—側 邊11 4。同理’汲極延伸區1 3 8 A可謂接近或鄰接第二側邊 116 〇 又參考第3圖’閘極結構11 2、間隔體1 2 7和1 2 8、以 11 92464 1320954 及主要表面104之暴露部分上形成具有厚度介於約2〇〇人 和約1，500 A之間的石夕氮化物層146。根據實例，係利用 化學氣相沈積法沈積矽氮化物層1 46。或者，該石夕氮化物 層1 4 6可為氧化物層或任何適合形成間隔體的材料声。 現在參考第4圖，矽氮化物層14 6係非等向性姓刻以 形成間隔體1 52和1 54。因此，間隔體127為介於間隔體 152和閘極結構112的側邊114之間，且間隔體128為介 於間隔體1 5 4和閘極結構11 2的側邊11 6之間。以文角产 植入之源極/没極形成源極區丨5 6和及極區！ 5 8。因此，源 極區156係由間隔體152和側邊114隔開並對準間隔體15? 和側邊114，而汲極區158係由間隔體154和側邊ιΐ6隔 開並對準間隔體1 54和側邊11 6。該源極/汲極植入亦捧雜 閘極結構1 1 2。源極和汲極植入的一組適當參數包括植入 例如介於約IX 10"離子/平方公分和約1χ 1〇]6離子/平〇 公分間之劑量範圍的磷之Ν型導電性摻雜物以及利用介於 約5KeV和約100KeV之間的植入能量。以約介於如IQ 和約l’lOOt：之間的溫度進行半導體组件1〇〇的退火。 又參考第4圖，係進行濕式蝕刻以移除任何沿著閘極 導體108A上表面118的氧化物以及任何設置在主要表面 104上的氧化物層。耐火金屬層16〇係沈積於上表面ία、 間隔體1 52和1 54、以及主要表面i 〇 ^ /sr χ, Λ „ 的暴路口ί5刀。根據 貫例’耐火金屬層刚為具有厚度範圍介於約5〇α 3 〇 0 Α之間的鈷。 現在參考第5圖，係加熱耐火金屬層16〇至6〇〇t和 92464 12 1320954 7 0 0 C之間溫度。此熱處理使钻和矽產生反應，而於鈷和石夕 接觸的所有區域中形成矽化鈷（C〇Si2)。因此，矽化鈷i64 係形成於閘極導體1 0 8 A，矽化鈷1 6 6係形成於源極區 1 6 4 ’以及♦化姑1 6 8係形成於及極區1 5 8。置於間隔體1 5 2 和154上之鈷的部分則仍保持未反應的狀態。應瞭解本發 明並非僅侷限於使用石夕化物。例如，亦可使用其他適合的 矽化物包括矽化鈦（Tisi)、矽化鉑（Ptsi)、矽化鎳（NiSi)、 以及其類似矽化物。如同熟習該項技藝者所瞭解，矽係於 形成矽化物的過程中所消耗，並且所消耗之矽量為所形成 之矽化物種類的函數《因此，係顯示矽化物1 64延伸入閘 極導體108A，矽化物166延伸入源極區156、以及矽化物 1 6 8延伸入汲極區丨5 8。 仍参考第5目，利用熟習該項之技藝者所習知的製程 咎除未反應的鈷。移除未反應的鈷可使閘極導體i〇8a、源 極區156'以及汲極區158相互電性隔離。 ’、 現在參考第6 @，於包括矽化物區域的結構上形成介 電材料層17〇。根據實例，材料層"Ο為具有厚度範 圍介於約5，刪人和15，_人之間的氧化物。於氧化物層 17◦中係形成開口而暴露出矽化物層164、166和168的呷 分。利用熟習制技藝者所周知的技術，係形成接觸暴露 之石夕化物層！64、叫168的電導體或電極。更明確而士， 係指接觸閉極石夕化物層164的問極電極i74，接觸源極石夕 化物層166的源極電極176，以及接觸沒極石夕化物層⑹ 的汲極電極1 7 8。 92464 13 在C秉解本發明業已提供的絕緣閘極半導體組件 :乂及衣造该半導體組件的方法。根據本發明之一個態樣， °亥 '、且件具有非對稱源極和沒極延伸ϋ，該源極A伸區延伸 於閘極結構之下以及沒極延伸區延神於閘極結構之下’並 二刀別為對準至閘極結構的一個邊緣或由該閘極結構橫 向隔開。於閘極結構之下形成延伸區（即，增加閘極結構和 源極側延伸區的重疊面積）可降低半導體組件之源極側的 電阻以及增加閘極至源極的電壓，因而可提供更多的驅動 電流。此可改善半導體組件的直流電性能。此外，減少或 2 ”閘極，·σ構和汲極側延伸區的重疊面積可降低汲極側的 f勒电令，此可改善半導體組件的交流電性能。再者，減 ;閘極結構和汲極側延伸區的重疊面積可降低閘極至汲極 的直接穿隨電流。此源極側非對稱暈圏區可減少靠近汲極 ^ 2區之通道摻雜，以改善半導體組件的直流電性能。減 少Λ近汲極延伸區之通道摻雜亦可降低接合面電容，因而 改善半導體組件的交流電性能。當半導體組件為載矽絕緣 層（SOI)裝置時，此改善可獲得莫大的益處。在形成其他推 雜區之前形成暈圈區，卩於利用非對稱延㈣肖提供較佳 的臨限電壓下拉控制並且使暈圈區的形成較接近通道區的 中央，因而可避免在形成延伸區時的反摻雜。 ▲雖然此處已揭示-些較佳的實施例以及方丨，但熟習 5亥j技藝者從上述的揭示中應瞭解在不背離本發明的精神 和範圍内該等實施例及方法可加以變化和修改。 [圖式簡單說明] 92464 14 1320954 本發明可藉由配合附圖而由下列說明更為清楚易懂， 相同的元件有相同的元件符號，其中： 第1至第6圖為根據本發明實施例之部分絕緣閘極場 效電晶體的高度放大橫剖面 圖。 100 絕緣閘極場效電晶體/半導體裝置/半導體材料/ 導體組件 102 半導體基板/矽 104 主要表面 106 介電材料層/氧化物 層/介 電層 106A 殘留部分 108 相_晶碎層 108A 閘極導體/殘留部分 110 Ί虫刻光罩/姓刻光罩層 112 閘極結構 114 側壁7側邊/第一側邊 116 側壁/側邊/第二側邊 118 上表面 120、 136 ' 138摻雜區 122 虛線 124、 130 箭頭 126、 170 介電材料層/氧 化物層 127 ' 128、 152、 154 間隔體 136A 源極延伸區/部分 138A 汲極延伸區/部分 146 矽氮化物層 156 源極區 158 汲極區 160 耐火金屬層 164、 166 ' !68 矽化物層/矽化鈷/矽化物 174 閘極電極 176 源極電極 178 及極電極 D 距離 a ' 6 *角度 92464 15

Claims (1)

  1. 附件 /第92130193號專利申請案 拾、申請專利範圍： ⑼年12月7曰) k 一種製造半導體組件之方法，包括： 提供具有主要表面之第一導電性種類的半導體材 料； 於該主要表面上形成閘極結構，該閘極結構具有第 一和第二側邊及上表面； _利用斜角植入以於該半導體材料中非對稱地植入 該第一導電性種類的掺雜物，而該斜角植入採相對於該 主要表面之垂直方向為小於9〇度之角度進行植入其 中部分之該摻雜物係鄰接該開極結構的該第一側邊並 且做為第一暈圈區； 形成鄰接該閘極結構之該第一側邊的第一間隔 體’以及鄰接該閘極結構之該第二側邊的第二間隔體； 導體:二Si晕後’利用斜角植入以於該半 弟一導電性種類的摻雜物，而該斜角 對於該主要表面之垂直方向為小於9〇度之角度 土 =植入，以形成非對稱的第一與第二延伸區，其令， 刀之該摻雜物係鄰接該閘極結構的該第一側邊並且 間極"盖广 而另外一部分之該摻雜物係鄰接該 冓的該第二側邊並且作為該第二延伸區；以及 於該半導體材料中形成該第二導電性種類的第一 侧該第一換雜區接近該間極結構的該第- 2.如卜^ 摻耗接近該閘極結構的該第二側邊。 申》月專利觀圍第！項之方法，其中非對稱地植入該摻 92464修正版 16 1320954 雜物於該半導體材料中 圍的角度進行植入。 第92130193號專利申請案 (98年12月7日） 包括以介於20度和50度間之範 3.如申請專利範圍第1項之方 雜物於該半導體材料中包括 間的角度進行植入。 法，其中非對稱地植入該摻 以介於35度和45度之範圍 4. 如申請專利範圍第μ之方法，其中該第 該第-側邊延伸至該閘極結構之下。 甲為自 5. 如申請專利範圍第丨項之方法，其 該間極結構的該第二側邊隔開。、Λ -申區係與 6. 如申請專利範圍第W之方法，復包括於鄰接 第-間隔體處分別形成第三和第四間隔體。 7· t申請專利範圍第6項之方法，其㈣成該第一和第 摻雜區包括使該第-摻雜區對準該第第-該第二摻雜區對準該第四間隔體。 ^體以及使 8.如申請專利範圍第丨項之方法，其中 包括利用斜角植入以從〇产 w第一延伸區 攸u度至2〇度之範 該第二導電性種類之摻雜物於該半導體椅-植入 9.一種製造半導體組件之方法，包括·· 斗中。 提供具有主要表面之第一導電性 料； 類的半導體材 π π即上形成閘極結構， 一和第二側邊及上表面； ° 5結構具有第 於接近該閉極結構的該第一侧邊 性種類的暈圈區； 戍讀第一導電 92464修正版 17 1 第92130193號專利申請案 (98年12月7曰） 形成鄰接該閘極結構之該第一側邊的第一間隔 體、以及鄰接該閘極結構之該第二側邊的第二間S隔體； 於形成該暈圈區之後，利用斜角植入以於該半導體 材料中植入第二導電性種類的摻雜物，而該斜角植入採 相對於該主要表面之垂直方向為介於〇度和9〇度之間 的角度進行植入，並且苴中該捩独从 I且，、〒通摻雜物的一部分為鄰接該 ?極結構的該第一側邊及延伸於該閘極結構之下並且 =為第-摻雜延伸區，而該第二導電性種類的該推雜物 當另-部分為鄰接該閘極結構的該第二側邊並且做為 弟一推雜延伸區； 於鄰接該第一和第二間隔體處分別形三 四間隔體； 矛 於該半導體材料中形忐# _ 區m… 成弟二導電性種類的源極 邊隔開；以及 第二間隔體而與該第一側 於該半導體相料令形成 _ 區，該汲極區係^ 導電性種類的沒極 10 邊隔開。第二和第四間隔體而與該第二側 •如申凊專利範圍第 利用钭角植入 項之方法，其中形成該暈圏區包括 種類的該摻雜物，其中該電性 之垂直方hi入 用植入知相對於該主要表面 該斜角植，相對於該:要二r 92464修正版 18 11. 第92130193號專利申請案 35度和45度之間的角度進行植入。 ⑽年口月7日') 12. 如申請專利範圍第1〇 中植入該第二導電性種類的材二、令於該半導體材料 主要表面之垂直方Π:::用採相對於該 斜角植入。 〜於0度和25度之間的角度的 13. 如申請專利範圍第$項 項之方法，其中該第二摻雜延伸區 係與該閑極結構的該第二側邊橫向地隔開。 14·一種半導體組件，包括·· 具有主要表面的半導體材料； 設置於該主要表面卜# μ上 m ^ 上的閘極結構，該閘極結構罝有 第一和第二側邊； 馎，、百 於該半導體材料中的源極側暈圈區; 於該半導體材料中的源極和沒極延伸 極延伸區從該閘極結構 '中Q源 m… 構之第一側邊而在該閘極結構之 下延伸入該半導體材料中， 再爻 間極結構的該第1这 没極延伸區係鄰接該 橫向地隔開與該間極結構的該第二側邊 於該半導體材料中的源極和汲 區鄰接該個別的源極和没極延伸區。"原極和及極 15. 如申請專利範圚 ^ 項之半導體組件，復包括八^ Μ 接該閘極結構之該第 紅括刀別鄰 體。 第一側邊的第一和第二間隔 16. 如申請專利範 姑Γ· u 弟項之半導體組件，其中哕、：5炼& 伸區從該閘極結構 再甲該汲極延 ，以第一側邊延伸於該閘極結構之 92464修正版 19 1320954 第92130193號專利申請案 (98年12月7日） 下。 17.如申請專利範圍第15項之半導體組件，復包括分別鄰 接該第一和第二間隔體的第三和第四間隔體。 1 8.如申請專利範圍第1 7項之半導體組件，其中該源極和 汲極區為分別對準該第三和第四間隔體。 20 92464修正版
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US6833307B1 (en) 2004-12-21
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CN1708857A (zh) 2005-12-14
KR100992180B1 (ko) 2010-11-05
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