JP2013254950A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2013254950A JP2013254950A JP2013099643A JP2013099643A JP2013254950A JP 2013254950 A JP2013254950 A JP 2013254950A JP 2013099643 A JP2013099643 A JP 2013099643A JP 2013099643 A JP2013099643 A JP 2013099643A JP 2013254950 A JP2013254950 A JP 2013254950A
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- Prior art keywords
- insulating layer
- layer
- oxide
- film
- oxide semiconductor
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- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 1
- 229940075613 gadolinium oxide Drugs 0.000 description 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000001307 laser spectroscopy Methods 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 1
- 229910021334 nickel silicide Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920000128 polypyrrole Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000005477 sputtering target Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- AKJVMGQSGCSQBU-UHFFFAOYSA-N zinc azanidylidenezinc Chemical compound [Zn++].[N-]=[Zn].[N-]=[Zn] AKJVMGQSGCSQBU-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. 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
- H01L29/04—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes
- H01L29/045—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their crystalline structure, e.g. polycrystalline, cubic or particular orientation of crystalline planes by their particular orientation of crystalline planes
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42384—Gate electrodes for field effect devices for field-effect transistors with insulated gate for thin film field effect transistors, e.g. characterised by the thickness or the shape of the insulator or the dimensions, the shape or the lay-out of the conductor
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/511—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures
- H01L29/513—Insulating materials associated therewith with a compositional variation, e.g. multilayer structures the variation being perpendicular to the channel plane
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/517—Insulating materials associated therewith the insulating material comprising a metallic compound, e.g. metal oxide, metal silicate
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/51—Insulating materials associated therewith
- H01L29/518—Insulating materials associated therewith the insulating material containing nitrogen, e.g. nitride, oxynitride, nitrogen-doped material
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- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78696—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the structure of the channel, e.g. multichannel, transverse or longitudinal shape, length or width, doping structure, or the overlap or alignment between the channel and the gate, the source or the drain, or the contacting structure of the channel
Abstract
【解決手段】ゲート電極層と、ゲート電極層上のゲート絶縁層と、ゲート絶縁層上の酸化物絶縁層と、酸化物絶縁層上に接し、ゲート電極層と重畳する酸化物半導体層と、酸化物半導体層と電気的に接続するソース電極層及びドレイン電極層と、を有し、ゲート絶縁層は、窒素を含むシリコン膜を含んで構成され、酸化物絶縁層は、酸化物半導体層の構成元素から選択される一又は複数の金属元素を含み、ゲート絶縁層の膜厚は、酸化物絶縁層よりも厚い半導体装置を提供する。
【選択図】図1
Description
本実施の形態では、半導体装置及び半導体装置の作製方法の一形態を、図1、図2、図3、図10及び図11を用いて説明する。本実施の形態では、半導体装置の一例として、酸化物半導体層を有するボトムゲート型のトランジスタを示す。
図1(A)乃至図1(C)にトランジスタ300の構成例を示す。図1(A)は、トランジスタ300の平面図であり、図1(B)は、図1(A)中の鎖線X1−Y1における断面図であり、図1(C)は、図1(A)中の鎖線V1−W1における断面図である。
図2(A)乃至図2(C)にトランジスタ310の構成例を示す。図2(A)は、トランジスタ310の平面図であり、図2(B)は、図2(A)中の鎖線X2−Y2における断面図であり、図2(C)は、図2(A)中の鎖線V2−W2における断面図である。
以下に、図3を用いてトランジスタ310の作製方法の一例を示す。
図10(A)乃至図10(C)にトランジスタ320の構成例を示す。図10(A)は、トランジスタ320の平面図であり、図10(B)は、図10(A)中の鎖線X3−Y3における断面図であり、図10(C)は、図10(A)中の鎖線V3−W3における断面図である。
図11(A)乃至図11(C)にトランジスタ330の構成例を示す。図11(A)は、トランジスタ330の平面図であり、図11(B)は、図11(A)中の鎖線X4−Y4における断面図であり、図11(C)は、図11(A)中の鎖線V4−W4における断面図である。
実施の形態1に示したトランジスタを用いて表示機能を有する半導体装置(表示装置ともいう)を作製することができる。また、トランジスタを含む駆動回路の一部又は全体を、画素部と同じ基板上に一体形成し、システムオンパネルを形成することができる。
実施の形態1に示したトランジスタを用いて、対象物の情報を読み取るイメージセンサ機能を有する半導体装置を作製することができる。
本明細書に開示する半導体装置は、さまざまな電子機器(遊技機も含む)に適用することができる。電子機器としては、テレビジョン装置(テレビ、又はテレビジョン受信機ともいう)、コンピュータ用などのモニタ、デジタルカメラ、デジタルビデオカメラ、デジタルフォトフレーム、携帯電話機、携帯型ゲーム機、携帯情報端末、音響再生装置、遊技機(パチンコ機、スロットマシン等)、ゲーム筐体が挙げられる。これらの電子機器の具体例を図8に示す。
310 トランジスタ
320 トランジスタ
330 トランジスタ
400 基板
402 ゲート電極層
404 ゲート絶縁層
404a ゲート絶縁層
404b ゲート絶縁層
404c ゲート絶縁層
406 酸化物絶縁層
408 酸化物半導体層
408a 酸化物半導体層
408b 酸化物半導体層
410a ソース電極層
410b ドレイン電極層
412 酸化物絶縁層
414 保護絶縁層
414a 保護絶縁層
414b 保護絶縁層
500 基板
502 ゲート絶縁層
504 層間絶縁層
505 カラーフィルタ層
506 絶縁層
507 隔壁
510 トランジスタ
511a ゲート電極層
511b ゲート電極層
512 酸化物絶縁層
513a 導電層
513b 導電層
514 酸化物半導体層
520 容量素子
521a 導電層
521b 導電層
522 酸化物絶縁層
523 導電層
524 絶縁層
525 絶縁層
526 酸化物半導体層
530 配線層交差部
533 導電層
540 発光素子
541 電極層
542 電界発光層
543 電極層
601 基板
602 フォトダイオード
606a 半導体膜
606b 半導体膜
606c 半導体膜
608 接着層
613 基板
620 ゲート絶縁層
621 酸化物絶縁層
622 光
623 酸化物半導体層
631 絶縁層
632 絶縁層
633 層間絶縁層
634 層間絶縁層
640 トランジスタ
641a 電極層
641b 電極層
642 電極層
643 導電層
645 導電層
656 トランジスタ
658 フォトダイオードリセット信号線
659 ゲート信号線
671 フォトセンサ出力信号線
672 フォトセンサ基準信号線
4001 基板
4002 画素部
4003 信号線駆動回路
4004 走査線駆動回路
4005 シール材
4006 基板
4008 液晶層
4010 トランジスタ
4011 トランジスタ
4013 液晶素子
4015 接続端子電極
4016 端子電極
4018 FPC
4019 異方性導電層
4020a ゲート絶縁層
4020b 酸化物絶縁層
4021 絶縁層
4030 酸化物絶縁層
4031 電極層
4032 保護絶縁層
4033 絶縁層
4034 電極層
4035 スペーサ
4038 絶縁層
4510 隔壁
4511 電界発光層
4513 発光素子
4514 充填材
9000 テーブル
9001 筐体
9002 脚部
9003 表示部
9004 表示ボタン
9005 電源コード
9033 留め具
9034 スイッチ
9035 電源スイッチ
9036 スイッチ
9038 操作スイッチ
9100 テレビジョン装置
9101 筐体
9103 表示部
9105 スタンド
9107 表示部
9109 操作キー
9110 リモコン操作機
9201 本体
9202 筐体
9203 表示部
9204 キーボード
9205 外部接続ポート
9206 ポインティングデバイス
9630 筐体
9631 表示部
9631a 表示部
9631b 表示部
9632a 領域
9632b 領域
9633 太陽電池
9634 充放電制御回路
9635 バッテリー
9636 DCDCコンバータ
9637 コンバータ
9638 操作キー
9639 ボタン
Claims (6)
- ゲート電極層と、
前記ゲート電極層上のゲート絶縁層と、
前記ゲート絶縁層上の酸化物絶縁層と、
前記酸化物絶縁層上に接し、前記ゲート電極層と重畳する酸化物半導体層と、
前記酸化物半導体層と電気的に接続するソース電極層及びドレイン電極層と、を有し、
前記ゲート絶縁層は、窒素を含むシリコン膜を含んで構成され、
前記酸化物絶縁層は、前記酸化物半導体層の構成元素から選択される一又は複数の金属元素を含み、
前記ゲート絶縁層の膜厚は、前記酸化物絶縁層よりも厚い半導体装置。 - 請求項1において、
前記酸化物半導体層と、前記酸化物絶縁層との端部が一致する半導体装置。 - ゲート電極層と、
前記ゲート電極層上のゲート絶縁層と、
前記ゲート絶縁層上の第1の酸化物絶縁層と、
前記第1の酸化物絶縁層上に接し、前記ゲート電極層と重畳する酸化物半導体層と、
前記酸化物半導体層と電気的に接続するソース電極層及びドレイン電極層と、
前記ソース電極層及び前記ドレイン電極層を覆い、前記酸化物半導体層の一部と接する第2の酸化物絶縁層と、
前記第2の酸化物絶縁層上の保護絶縁層と、を有し、
前記ゲート絶縁層及び前記保護絶縁層は、窒素を含むシリコン膜を含んで構成され、
前記第1の酸化物絶縁層及び前記第2の酸化物絶縁層は、前記酸化物半導体層の構成元素から選択される一又は複数の金属元素を含み、
前記ゲート絶縁層の膜厚は、前記第1の酸化物絶縁層の膜厚よりも厚く、
前記保護絶縁層の膜厚は、前記第2の酸化物絶縁層の膜厚よりも厚い半導体装置。 - 請求項3において、
前記酸化物半導体層と、前記第1の酸化物絶縁層との端部が一致する半導体装置。 - 請求項1乃至4のいずれか一において、
前記ゲート絶縁層の膜厚は、325nm以上550nm以下である半導体装置。 - 請求項1乃至5のいずれか一において、
前記ゲート絶縁層は、窒化シリコン膜である半導体装置。
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