JP2023553036A - 半導体酸化物トランジスタを備えたディスプレイ回路要素 - Google Patents
半導体酸化物トランジスタを備えたディスプレイ回路要素 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 288
- 239000000463 material Substances 0.000 claims abstract description 69
- 239000004020 conductor Substances 0.000 claims description 91
- 239000003990 capacitor Substances 0.000 claims description 53
- 229910052751 metal Inorganic materials 0.000 claims description 53
- 239000002184 metal Substances 0.000 claims description 53
- 239000000758 substrate Substances 0.000 claims description 43
- 238000000151 deposition Methods 0.000 claims description 31
- 230000008021 deposition Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 15
- 239000010410 layer Substances 0.000 description 387
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 15
- 229910052710 silicon Inorganic materials 0.000 description 15
- 239000010703 silicon Substances 0.000 description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 239000010409 thin film Substances 0.000 description 14
- 239000010936 titanium Substances 0.000 description 13
- 229910052786 argon Inorganic materials 0.000 description 12
- 239000003989 dielectric material Substances 0.000 description 9
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 7
- 229910052581 Si3N4 Inorganic materials 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 7
- 229910052737 gold Inorganic materials 0.000 description 7
- 239000010931 gold Substances 0.000 description 7
- 239000012212 insulator Substances 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229910052750 molybdenum Inorganic materials 0.000 description 7
- 239000011733 molybdenum Substances 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 238000002161 passivation Methods 0.000 description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 7
- 229910052814 silicon oxide Inorganic materials 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 229910052735 hafnium Inorganic materials 0.000 description 4
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 4
- 229910052738 indium Inorganic materials 0.000 description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 239000001272 nitrous oxide Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 3
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 3
- -1 carbon-doped oxide Chemical compound 0.000 description 3
- 229910000420 cerium oxide Inorganic materials 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 229910000449 hafnium oxide Inorganic materials 0.000 description 3
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910001936 tantalum oxide Inorganic materials 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 229910001935 vanadium oxide Inorganic materials 0.000 description 3
- 241000750042 Vini Species 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- YZZNJYQZJKSEER-UHFFFAOYSA-N gallium tin Chemical compound [Ga].[Sn] YZZNJYQZJKSEER-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- NJWNEWQMQCGRDO-UHFFFAOYSA-N indium zinc Chemical compound [Zn].[In] NJWNEWQMQCGRDO-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- TYHJXGDMRRJCRY-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) tin(4+) Chemical compound [O-2].[Zn+2].[Sn+4].[In+3] TYHJXGDMRRJCRY-UHFFFAOYSA-N 0.000 description 1
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- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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- H01L29/78—Field effect transistors with field effect produced by an insulated gate
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- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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Abstract
Description
(関連出願の相互参照)
本出願は、2021年10月18日に出願された米国特許出願第17/504,230号、及び2020年12月7日に出願された米国仮特許出願第63/122,319号に対する優先権を主張するものであり、それらの全体が参照により本明細書に組み込まれる。
Claims (28)
- 画素のアレイを有するディスプレイであって、
基板層と、
前記基板層の上に形成された第1の半導体酸化物層と、
前記基板層の上に形成された第2の半導体酸化物層と、
ゲート導体層と、を備え、前記アレイ内の前記画素のうちの少なくとも1つが、
前記第1の半導体酸化物層の一部分から形成された活性領域を有し、かつ前記ゲート導体層の第1の部分から形成されたゲート端子を有する、第1の半導体酸化物トランジスタと、
前記第2の半導体酸化物層の一部分から形成された活性領域を有し、かつ前記ゲート導体の第2の部分から形成されたゲート端子を有する、第2の半導体酸化物トランジスタと、を備える、ディスプレイ。 - 前記第1の半導体酸化物層が第1の半導体材料を含み、
前記第2の半導体酸化物層が前記第1の半導体材料とは異なる第2の半導体材料を含む、
請求項1に記載のディスプレイ。 - 前記第1の半導体酸化物層が半導体材料を含み、
前記第2の半導体酸化物層が前記半導体材料を含む、
請求項1に記載のディスプレイ。 - 第1のゲート絶縁層と、
前記第1のゲート絶縁層の上に形成された第2のゲート絶縁層と、を更に備え、
前記第1のゲート絶縁層の第1の部分が、前記第1の半導体酸化物トランジスタの前記活性領域と前記ゲート端子との間に介在し、
前記第2のゲート絶縁層の第1の部分が、前記第1の半導体酸化物トランジスタの前記活性領域と前記ゲート端子との間に介在し、
前記第1のゲート絶縁層の第2の部分が、前記第2の半導体酸化物トランジスタの前記活性領域の下に形成され、
前記第2のゲート絶縁層の第2の部分が、前記第2の半導体酸化物トランジスタの前記活性領域と前記ゲート端子との間に介在する、
請求項1に記載のディスプレイ。 - 前記基板層と前記第1の半導体酸化物層との間に導電層を更に備え、
前記第1の半導体酸化物トランジスタの前記活性領域の下方に、前記導電層の第1の部分が形成され、
前記第2の半導体酸化物トランジスタの前記活性領域の下方に、前記導電層の第2の部分が形成される、
請求項1に記載のディスプレイ。 - 前記ゲート導体層の第3の部分から形成された第1の端子を有し、かつ前記導電層の第3の部分から形成された第2の端子を有するコンデンサ、
を更に備える、請求項5に記載のディスプレイ。 - 前記第1の半導体酸化物層の追加部分から形成された第1の端子を有し、かつ前記導電層の第3の部分から形成された第2の端子を有するコンデンサ、
を更に備える、請求項5に記載のディスプレイ。 - 前記ゲート導体層の上方に金属導体から形成された第1の端子を有し、かつ前記ゲート導体層の第3の部分から形成された第2の端子を有するコンデンサ、
を更に備える、請求項1に記載のディスプレイ。 - ソース-ドレイン金属導体から形成された第1の端子を有し、かつ前記ゲート導体層とは別個の金属導体から形成された第2の端子を有するコンデンサ、
を更に備える、請求項1に記載のディスプレイ。 - ソース-ドレイン金属導体から形成された第1の端子を有し、かつ前記ゲート導体層の第3の部分から形成された第2の端子を有するコンデンサ、
を更に備える、請求項1に記載のディスプレイ。 - 前記第2の半導体酸化物トランジスタの前記活性領域が、前記第1の半導体酸化物層の追加部分を含む、請求項1に記載のディスプレイ。
- 前記基板層の上に形成された第3の半導体酸化物層と、
前記第3の半導体酸化物層の一部分から形成された活性領域を有し、かつ前記ゲート導体層の第3の部分から形成されたゲート端子を有する第3の半導体酸化物トランジスタと、
を更に備える、請求項1に記載のディスプレイ。 - 前記ゲート導体層が、前記第1及び第2の半導体酸化物層の下方にある、請求項1に記載のディスプレイ。
- 前記第1の半導体酸化物トランジスタが、負バイアス温度ストレス(NBTS)安定性のために最適化されており、
前記第2の半導体酸化物トランジスタが、正バイアス温度ストレス(PBTS)安定性のために最適化されている、
請求項1に記載のディスプレイ。 - ディスプレイを形成する方法であって、
基板層を得ることと、
前記基板層の上に第1の半導体酸化物層を形成することと、
前記第1の半導体酸化物層を形成した後に、前記基板層の上に第2の半導体酸化物層を形成することと、
前記第2の半導体酸化物層の上にゲート導体層を形成することと、を含み、前記ディスプレイが、
前記第1の半導体酸化物層の一部分から形成された活性領域を有し、かつ前記ゲート導体層の第1の部分から形成されたゲート端子を有する、第1の半導体酸化物トランジスタと、
前記第2の半導体酸化物層の一部分から形成された活性領域を有し、かつ前記ゲート導体の第2の部分から形成されたゲート端子を有する、第2の半導体酸化物トランジスタと、を備える、
方法。 - 前記第1の半導体酸化物層を形成することが、第1の半導体材料を形成することを含み、
前記第1の半導体酸化物層を形成することが、前記第1の半導体材料とは異なる又は同一の第2の半導体材料を形成することを含む、
請求項15に記載の方法。 - 前記第1の半導体酸化物層を形成することが、第1の堆積条件下で半導体材料を堆積させることを含み、
前記第1の半導体酸化物層を形成することが、前記第1の堆積条件とは異なる第2の堆積条件下で半導体材料を堆積させることを含む、
請求項15に記載の方法。 - 前記第1の半導体酸化物層の上方及び前記第2の半導体酸化物層の下方にゲート絶縁層を形成することを更に含む、
請求項15に記載の方法。 - 前記第2の半導体酸化物層を形成することが、前記第1の半導体酸化物層上に前記第2の半導体酸化物層を直接形成することを含む、請求項15に記載の方法。
- 前記第2の半導体酸化物層を形成した後に、前記基板層の上に第3の半導体酸化物層を形成すること、
を更に含む、請求項15に記載の方法。 - 前記第1の半導体酸化物トランジスタの前記活性領域の下に第1の導体を形成することと、
前記第2の半導体酸化物トランジスタの前記活性領域の下に第2の導体を形成することと、
を更に含む、請求項15に記載の方法。 - 基板上に形成された第1の半導体酸化物トランジスタであって、第1のデバイス特性を提供するために、第1の酸化物半導体から形成された第1の活性領域を有する、第1の半導体酸化物トランジスタと、
前記基板上に形成された第2の半導体酸化物トランジスタであって、前記第1のデバイス特性とは異なる第2のデバイス特性を提供するために、前記第1の酸化物半導体とは異なる第2の酸化物半導体から形成された第2の活性領域を有する、第2の半導体酸化物トランジスタと、
を備える、装置。 - 前記基板上に形成された第3の半導体酸化物トランジスタであって、前記第1及び第2のデバイス特性とは異なる第3のデバイス特性を提供するために、前記第1及び第2の酸化物半導体とは異なる第3の酸化物半導体から形成された第3の活性領域を有する、第3の半導体酸化物トランジスタ、
を更に備える、請求項22に記載の装置。 - 前記第1の活性領域の上方に形成され、かつ前記第2の活性領域の下方に形成された、ゲート絶縁層、
を更に備える、請求項22に記載の装置。 - 前記第2の活性領域が前記第1の酸化物半導体をも含む、請求項22に記載の装置。
- 前記第1の半導体酸化物トランジスタが、第1のゲート導体と、前記第1のゲート導体と前記第1の活性領域との間における第1の数のゲート絶縁層と、を備え、
前記第2の半導体酸化物トランジスタが、第2のゲート導体と、前記第2のゲート導体と前記第2の活性領域との間における、前記第1の数のゲート絶縁層とは異なる第2の数のゲート絶縁層と、を備える、
請求項22に記載の装置。 - 前記第1の半導体酸化物トランジスタが、表示画素内に第1のスイッチを備え、
前記第2の半導体酸化物トランジスタが、前記表示画素内に第2のスイッチを備える、
請求項22に記載の装置。 - 前記第1の半導体酸化物トランジスタが、表示画素内にスイッチを備え、
前記第2の半導体酸化物トランジスタが、前記表示画素に少なくとも1つの制御信号を提供するように構成されたゲートドライバ回路要素内にスイッチを備える、
請求項22に記載の装置。
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