JP2019525461A - アモルファス金属ホットエレクトロントランジスタ - Google Patents
アモルファス金属ホットエレクトロントランジスタ Download PDFInfo
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- 239000005300 metallic glass Substances 0.000 title claims abstract description 153
- 239000002784 hot electron Substances 0.000 title abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 238000000059 patterning Methods 0.000 claims abstract 4
- 239000012212 insulator Substances 0.000 claims description 60
- 239000000758 substrate Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 22
- 239000004020 conductor Substances 0.000 claims description 15
- 150000002739 metals Chemical class 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000010408 film Substances 0.000 abstract description 33
- 239000010409 thin film Substances 0.000 abstract description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000005689 Fowler Nordheim tunneling Effects 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 113
- 239000000463 material Substances 0.000 description 22
- 239000003990 capacitor Substances 0.000 description 15
- 230000005641 tunneling Effects 0.000 description 15
- 239000004065 semiconductor Substances 0.000 description 11
- 230000004888 barrier function Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 238000000151 deposition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002800 charge carrier Substances 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 208000023564 acute macular neuroretinopathy Diseases 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000000231 atomic layer deposition Methods 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000000313 electron-beam-induced deposition Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- -1 emitter Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229920005570 flexible polymer Polymers 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000004439 roughness measurement Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
Description
本開示の一実施形態によるアモルファス金属薄膜トランジスタ構造の上面図および断面図である。
Claims (21)
- 非導電性基板と、
前記非導電性基板上のアモルファス金属層と、
前記アモルファス金属層上のトンネル誘電体層と、
それぞれが前記アモルファス金属層と重なっている、前記トンネル誘電体層上の第1電極および第2電極と、
前記第1電極および前記第2電極上の第2誘電体層と、
前記第2電極および前記アモルファス金属層に重なっている前記第2の誘電体層上の第3電極と、
を含み、前記第1電極および前記第2電極が、前記第3電極と前記アモルファス金属層との間にある、
デバイス。 - 前記第1および前記第2電極が前記トンネル誘電体層上にある結晶質金属である、
請求項1に記載のデバイス。 - 前記第1電極が第1の導電材料であり、前記第2電極が前記第1の導電材料とは異なる第2の導電材料である、
請求項1に記載のデバイス。 - 前記第1電極と前記第2電極とが同じ導電材料である、
請求項1に記載のデバイス。 - 前記トンネル誘電体層が金属酸化物または金属窒化物を含む、
請求項1に記載のデバイス。 - 前記第1電極は第1の厚さを有し、前記第2電極は前記第1の厚さとは異なる第2の厚さを有する、
請求項1に記載のデバイス。 - 前記トンネル誘電体が凹部を含み、前記第2電極が前記凹部内にある、
請求項1に記載のデバイス。 - 前記凹部が前記アモルファス金属層と重なり合って整列している、
請求項7に記載のデバイス。 - 前記アモルファス金属層が第1の方向に沿って最長の寸法を有しており、前記第1および第2電極が前記第1の方向を横切る第2の方向に沿って最長寸法を有している、
請求項1に記載のデバイス。 - 前記第1電極に結合された第1端子と前記第2電極に結合された第2端子とをさらに備える
請求項1に記載のデバイス。 - 前記第1端子が前記第2誘電体層を介して前記第1電極に結合し、前記第2端子が前記第2誘電体層を介して前記第2電極に結合する、
請求項10に記載のデバイス。 - 基板と、
前記基板上のアモルファス金属層であって、第1の方向に沿って延びる長さと、第1の方向を横切る第2の方向に沿って延びる幅とを有するアモルファス金属層と、
前記アモルファス金属層上のトンネル酸化膜と、
前記トンネル酸化膜上のエミッタ電極であって、アモルファス金属層の第1の部分と重なるエミッタ電極は、前記第2の方向に沿って延びる長さと、前記第1の方向に沿って延びる幅とを有しているエミッタ電極と、
前記トンネル酸化物層上のベース電極であって、前記アモルファス金属層の第2の部分と重なり、前記第2の方向に沿って延びる長さと、前記第1の方向に沿って延びる幅とを有している、ベース電極と、
前記エミッタ電極および前記ベース電極上の絶縁体と、
前記絶縁体上のコレクタ電極であって、前記ベース電極および前記アモルファス金属層の前記第2の部分に重なる前記コレクタ電極と
を備えるデバイス。 - 前記コレクタ電極は、前記第1の方向に沿って延びる長さと、前記第2の方向に沿って延びる幅とを有し、前記幅が前記長さよりも小さいものである、
請求項12に記載のデバイス。 - 前記エミッタ電極の前記長さが前記エミッタ電極の前記幅よりも大きく、前記ベース電極の前記長さが前記ベース電極の前記幅よりも大きい、
請求項12に記載のデバイス。 - 非導電性基板上にアモルファス金属層を形成するステップと、
前記アモルファス金属層の上方に第1の共形誘電体層を形成するステップと、
前記第1の共形誘電体層上に第1の導電層を形成するステップと、
前記第1導電層をパターニングしてエミッタ端子とベース端子を形成するステップと、
前記エミッタ端子と前記ベース端子の上方に第2の共形誘電体層を形成するステップと、
前記第2の共形誘電体層に開口部をパターニングするステップと、
前記開口部を第2の導電層で充填することによって前記エミッタ端子および前記ベース端子への接点を形成するステップと、
前記第2導電層をパターニングして集電端子を形成するステップと
を含む方法。 - 前記第2の共形誘電体層を形成する前記ステップは、前記第1の共形誘電体層より少なくとも3倍厚く前記第2の導電層を形成するステップを含む、
請求項15に記載の方法。 - 基板と、
前記基板上のアモルファス金属層と、
前記アモルファス金属層上の第1の絶縁体と、
前記第1の絶縁体上にあり、前記アモルファス金属層の第1の部分と重なる第1電極と、
前記第1の絶縁体上にあり、前記アモルファス金属層の第2の部分と重なる第2電極と、
第2の絶縁体と、
前記第2の絶縁体を貫通し、前記第1電極に結合された第1の接点と、
前記第2の絶縁体を貫通し、前記第2電極に結合された第2の接点と、
前記第2の絶縁体上にあり、前記アモルファス金属層の前記第2の部分と重なる第3電極と
を備えるデバイス。 - 前記第2の絶縁体上にあり、前記アモルファス金属層の前記第1の部分と重なる第4電極をさらに備える
請求項17に記載のデバイス。 - 前記第1電極が前記第2電極よりも厚い、
請求項17に記載のデバイス。 - 前記第1の誘電体層と前記第1および第2電極との間に第3の誘電体層をさらに備える
請求項17に記載のデバイス。 - 前記アモルファス金属層の前記第1の部分における前記第3の誘電体層の第1の開口部と、
前記アモルファス金属層の前記第2の部分における前記第3の誘電体層の第2の開口部と
をさらに備える請求項20に記載のデバイス。
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