WO2017095129A1 - 할로겐화구리 반도체 기반 전자소자 - Google Patents
할로겐화구리 반도체 기반 전자소자 Download PDFInfo
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- WO2017095129A1 WO2017095129A1 PCT/KR2016/013946 KR2016013946W WO2017095129A1 WO 2017095129 A1 WO2017095129 A1 WO 2017095129A1 KR 2016013946 W KR2016013946 W KR 2016013946W WO 2017095129 A1 WO2017095129 A1 WO 2017095129A1
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- copper halide
- layer
- electronic device
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- semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 66
- 150000001879 copper Chemical class 0.000 title abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 137
- 239000010949 copper Substances 0.000 claims abstract description 137
- -1 copper halide Chemical class 0.000 claims abstract description 136
- 239000000758 substrate Substances 0.000 claims abstract description 55
- 239000012535 impurity Substances 0.000 claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 11
- 239000011777 magnesium Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 10
- 239000011669 selenium Substances 0.000 claims description 10
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052711 selenium Inorganic materials 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims description 5
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 9
- 229910002601 GaN Inorganic materials 0.000 description 8
- 230000010287 polarization Effects 0.000 description 8
- 230000002269 spontaneous effect Effects 0.000 description 6
- 229910002704 AlGaN Inorganic materials 0.000 description 4
- 229910052594 sapphire Inorganic materials 0.000 description 4
- 239000010980 sapphire Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910021589 Copper(I) bromide Inorganic materials 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000003877 atomic layer epitaxy Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000028161 membrane depolarization Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/24—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only semiconductor materials not provided for in groups H01L29/16, H01L29/18, H01L29/20, H01L29/22
- H01L29/242—AIBVI or AIBVII compounds, e.g. Cu2O, Cu I
-
- 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
-
- 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
-
- 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
Definitions
- the present invention relates to a copper halide semiconductor-based electronic device, and more particularly to a copper halide semiconductor-based high power high-speed electronic device.
- GaN-based electronic devices which are widely used as high-power, high-speed electronic devices, use sapphire substrates or silicon carbide substrates, and the lattice mismatch between the substrate and the GaN / AlGaN layer and the GaN / AlGaN interface or AlGaN / InGaN / GaN, which are frequently used as active layers.
- the piezoelectric field and a high internal electric field of MV / cm level due to spontaneous polarization are applied to the interface, which leads to a significant decrease in the mobility of charges [T.-H. Yu and K. F. Brennan, J. Appl. Phys. 89,382 (2001).]
- the problem to be solved by the present invention is to provide a high output high-speed electronic device that can be produced at a low cost and improved productivity.
- Copper halide semiconductor-based electronic device for solving this problem, a substrate, a copper halide channel layer, an insulating layer, a gate electrode, a first n + copper halide layer, a drain electrode, a second an n + copper halide layer and a source electrode.
- the copper halide (CuHa) channel layer is formed on the substrate.
- the insulating layer is formed on the copper halide channel layer.
- the gate electrode is formed on the insulating layer.
- the first n + copper halide layer is formed in the copper halide channel layer so as to be located at one side of the gate electrode, and includes n-type impurities.
- the drain electrode is formed on the first n + copper halide layer.
- the second n + copper halide layer is formed on the copper halide channel layer so as to be located at the other side of the gate electrode and includes n-type impurities.
- the source electrode is formed on the second n + copper halide layer.
- the copper halide channel layer may further include a p-type impurity.
- the p-type impurity may be composed of any one of oxygen (O), sulfur (S), and selenium (Se).
- the n-type impurity may be composed of any one of zinc (Zn) and magnesium (Mg).
- the substrate may be any one of a silicon substrate, a gallium arsenide substrate, a glass substrate, a quartz substrate, and an alumina substrate.
- the copper halide channel layer may include CuICl or CuBrCl.
- the copper halide semiconductor-based electronic device may further include a barrier layer between the channel layer and the substrate, and the barrier layer may include CuCl.
- the copper halide semiconductor-based electronic device may further include a buffer layer between the substrate and the copper halide channel layer.
- the buffer layer may include CuCl.
- the insulating layer may be formed to include silicon oxide (SiO 2 ) or silicon nitride (SiN).
- a copper halide semiconductor-based electronic device includes a substrate, a copper halide channel layer, an insulating layer, a gate electrode, a first p + copper halide layer, a drain electrode, a second p + copper halide layer, and a source.
- the copper halide channel layer includes n-type impurities and is formed on the substrate.
- the insulating layer is formed on the copper halide channel layer.
- the gate electrode is formed on the insulating layer.
- the first p + copper halide layer is formed on the copper halide channel layer so as to be located at one side of the gate electrode, and includes p-type impurities.
- the drain electrode is formed on the first p + copper halide layer.
- the second p + copper halide layer is formed on the copper halide channel layer so as to be located at the other side of the gate electrode and includes p-type impurities.
- the source electrode is formed on the second p + copper halide layer.
- the p-type impurity may be any one of oxygen (O), sulfur (S), and selenium (Se), and the n-type impurity may be composed of one of zinc (Zn) and magnesium (Mg).
- the copper halide channel layer may include CuICl or CuBrCl.
- the copper halide semiconductor-based electronic device may further include a barrier layer between the channel layer and the substrate, and the barrier layer may include CuCl.
- the memory device includes a capacitor for displaying on / off by charging or discharging a charge and a switching device for controlling the capacitor, wherein the switching device is a copper halide semiconductor-based electron as described above. It can be implemented as an element.
- the logic device according to the present invention may be implemented with a plurality of switching devices, and the switching device may be implemented with the copper halide semiconductor-based electronic device described above.
- the copper halide semiconductor-based electronic device according to the present invention has a large band gap, thereby enabling high-power, high-power, high-power devices, and it is possible not to use expensive substrates, thereby reducing production costs and providing a large-area substrate. Since it is possible to grow, productivity can be improved.
- FIG. 1 is a schematic diagram illustrating a copper halide semiconductor-based electronic device according to an exemplary embodiment of the present invention.
- Fig. 2 is a schematic diagram showing a copper halide semiconductor-based electronic device according to another exemplary embodiment of the present invention.
- FIGS. 1 and 2 are circuit diagram schematically illustrating a CMOS device configured through FIGS. 1 and 2.
- FIG. 4 is a circuit diagram of a memory device to which the copper halide semiconductor-based electronic device of FIG. 1 is applied.
- FIG. 5 is a circuit diagram of a NOR logic circuit to which the copper halide semiconductor-based electronic device of FIG. 1 is applied.
- FIG. 6 illustrates a relationship between an in-plane wave vector and a vertex function in order to compare the exciton effect of a conventional gallium nitride semiconductor and a copper halide semiconductor according to the present invention.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- the term “formed on” or “formed on” a film (or layer) means that in addition to being directly formed to be in contact, another film or other layer may be formed therebetween, “Formed directly” on a layer means that no other layer is interposed therebetween.
- FIG. 1 is a schematic diagram illustrating a copper halide semiconductor-based electronic device according to an exemplary embodiment of the present invention.
- a copper halide semiconductor-based electronic device 100 may include a substrate 110, a copper halide channel layer 140, an insulating layer 150, and a gate electrode 160. ), A first n + copper halide layer 170, a drain electrode 171, a second n + copper halide layer 180, and a source electrode 181.
- the copper halide semiconductor-based electronic device 100 may further include a buffer layer 120 between the substrate 110 and the copper halide channel layer 140.
- the buffer layer 120 may include CuCl.
- a barrier layer 130 may be further included between the buffer layer 120 and the copper halide channel layer 140.
- the substrate 110 may be any one of a silicon substrate, a gallium arsenide substrate, a glass substrate, a quartz substrate, and an alumina substrate.
- the buffer layer 120 and the copper halide channel layer 140 may be formed on a silicon substrate.
- the copper halide channel layer 140, the barrier layer 130, and the buffer layer 120 may include molecular beam epitaxy (MBE), metal organic chemical vapor deposition (MOCVD), hydride vapor phase epitaxy (HVPE), and ALE (atomic layer epitaxy), and / or other similar methods.
- MBE molecular beam epitaxy
- MOCVD metal organic chemical vapor deposition
- HVPE hydride vapor phase epitaxy
- ALE atomic layer epitaxy
- the buffer layer 120, the barrier layer 130, and the copper halide channel layer 140 may be formed on the (111) surface of the substrate 110 formed of silicon (Si), respectively.
- Relatively inexpensive silicon (Si) substrates may also be used compared to more expensive conventional substrate materials such as sapphire, although the lattice constants of silicon (Si) have different crystal structures, As can be seen, it is close to the lattice constant of the copper halide semiconductor forming the copper halide channel layer 140.
- Si is known to have a diamond structure
- copper chloride (CuCl) has a zinc blend structure equivalent to that of the diamond structure.
- the (111) surface of the silicon (Si) substrate 110 may be suitable for the crystal structure of copper chloride, which may be stacked on the substrate 20, so that the copper halide semiconductor-based electronic device 100 may be used. It can also be used to make. That is, as shown in Table 1, the copper halide semiconductor has an advantage that the lattice constant is similar to that of the (111) plane of silicon, so that the copper halide semiconductor can be grown on a cheap large-area substrate.
- the copper halide (CuHa) channel layer 140 is formed on the substrate 110.
- the copper halide channel layer 140 may include CuICl or CuBrCl. Copper halide semiconductors generally operate in p-type, but the copper halide (CuHa) channel layer 140 may further include p-type impurities to increase holes.
- the p-type impurity may include any one of oxygen (O), sulfur (S), and selenium (Se).
- the first n + copper halide layer 170 is formed on the copper halide channel layer 140 to be positioned at one side of the gate electrode 160, and the second n + copper halide layer 180 is formed on the gate electrode 160. It is formed in the copper halide channel layer 140 so as to be located on the other side.
- the first n + copper halide layer 170 and the second n + copper halide layer 180 include n-type impurities, wherein the n-type impurity may include one of zinc (Zn) and magnesium (Mg). Can be.
- the lattice constant of the barrier layer 130 may also be controlled to reduce spontaneous polarization. Additionally, the lattice constant of barrier layer 130 may be slightly less than or greater than the lattice constant of copper halide channel layer 140 to reduce spontaneous polarization.
- such methods may be used to select a particular mole fraction of copper halide channel layer 140, which includes a CuIBrCl-type quaternary halogenated copper semiconductor material or a CuICl-type copper tertiary halogenated copper semiconductor material. You may.
- the depolarization of the inner field may be due to the cancellation of the sum of the piezoelectric and spontaneous polarization of the copper halide channel layer 140.
- the electrical and optical properties of the copper halide channel layer 140 may be enhanced, for example, by having an internal field that is substantially reduced or substantially zero.
- the copper halide semiconductor layer may have a relatively large exciton binding energy, for example, an exciton binding energy at least four times larger than those of group III nitrides, thereby improving quantum efficiency.
- the exciton binding energy is a measure of the interaction of holes and electrons, with opposite charges, and may be used to predict the strength of the hole-electron recombination process.
- CuBr is known to have an exciton binding energy of about 108 meV, which is higher than the exciton binding energy of ZnO.
- halogenated copper semiconductor based electronics may be expected to have more output than conventional wide bandgap semiconductors such as group III nitride or ZnO based light emitting devices.
- FIG. 6 illustrates an in-plane wave vector and a vertex function q k (0) in order to compare the exciton effect of a conventional gallium nitride semiconductor and a copper halide semiconductor according to the present invention. ) Is a graph showing the relationship between
- the graph of FIG. 6 shows Req k (0) between the ground state of the conduction band and the valence band.
- Equation 1 The vertex function q k (0) above is represented by Equation 1 below.
- ⁇ is a line-like function representing the spectrum of efficiency in the semiconductor
- ⁇ (k) is the dipole moment
- V (k) is the screened coulomb potential
- n ck 0 and n vk 0 Is the quasi-equilibrium distribution of electrons in the con- dition band and the valence band, respectively
- k is the wave vector.
- the red graph is CuI / CuCl
- the blue graph is CuBr / CuCl
- the green is ZnO / Mg 0.3 Zn 0.7
- the black is In 0 . 2 Ga 0 .8 N / Al 0 . 2 In 0 .005 G 0.7995 N
- the carrier density was calculated by assuming that the carrier density was 3 ⁇ 10 19 cm ⁇ 3 , the interband relation time was 10 fs and the correlation time was 25 fs.
- the barrier layer 130 may be disposed between the buffer layer 120 and the copper halide channel layer 140 to reduce total polarization in the copper halide channel layer 140, which in turn results in the copper halide channel layer 140. By reducing the internal field of the, the quantum efficiency of the copper halide semiconductor-based electronic device 100 is increased.
- the insulating layer 150 is formed on the copper halide channel layer 140.
- the insulating layer 150 may be formed to include silicon oxide (SiO 2 ) or silicon nitride (SiN).
- the gate electrode 160 is formed on the insulating layer 150, the drain electrode 171 is formed on the first n + copper halide layer 170, and the source electrode 181 is formed on the second layer. It is formed on the n + copper halide layer 180.
- the gate electrode 160, the drain electrode 171, and the source electrode 181 may be formed of, for example, aluminum, gold, platinum, silver, the like, and / or a combination thereof.
- the copper halide semiconductor-based electronic device thus formed may be operated as a transistor, and thus may be applied to various circuits, as described in the examples below.
- Fig. 2 is a schematic diagram showing a copper halide semiconductor-based electronic device according to another exemplary embodiment of the present invention.
- a copper halide semiconductor-based electronic device 200 may include a substrate 210, a copper halide channel layer 240, an insulating layer 250, and a gate electrode ( 260, a first p + copper halide layer 270, a drain electrode 271, a second p + copper halide layer 280, and a source electrode 281.
- a gate electrode 260, a first p + copper halide layer 270, a drain electrode 271, a second p + copper halide layer 280, and a source electrode 281.
- FIG. 2 only the p-type and n-type are interchanged with each other, and are substantially the same as those of FIG.
- the copper halide channel layer 240 if no impurity is added, the copper halide channel layer 240 has the property of a p-type semiconductor. Contains type impurities.
- FIGS. 1 and 2 are circuit diagram schematically illustrating a CMOS device configured through FIGS. 1 and 2.
- a CMOS device is implemented using a copper halide semiconductor-based electronic device implemented in FIGS. 1 and 2.
- the bandgap is large, and thus, a high-power, high-power device may be implemented.
- FIG. 4 is a circuit diagram of a memory device to which the copper halide semiconductor-based electronic device of FIG. 1 is applied.
- the memory device includes a capacitor C for indicating on / off by charging or discharging electric charges, and a switching element Tr for controlling the capacitor C,
- the switching device Tr may be implemented with the copper halide semiconductor-based electronic device described above.
- logic 1 When the capacitor C is charged, for example, logic 1 is given, and when the capacitor C is discharged, logic 0 is given, for example.
- logic 0 For example, when the initial logic value 0 is initially given to the capacitor C, in order to give a logic value 1 to the capacitor C, when the gate electrode of the switching element Tr is applied with a high voltage, the switching element Tr ) Is turned on to charge the capacitor C, and then, when a low voltage is applied to the gate voltage of the switching element Tr, the switching element Tr is turned off and the logic value 1 is stored in the capacitor C. .
- the switching element Tr is turned on to discharge the capacitor C, and then switching When a low voltage is applied to the gate voltage of the device Tr, the switching device Tr is turned off and a logic value 0 is stored in the capacitor C.
- FIG. 5 is a circuit diagram of a NOR logic circuit to which the copper halide semiconductor-based electronic device of FIG. 1 is applied.
- a logic device may be implemented with a plurality of switching devices, and the switching device may be implemented with the copper halide semiconductor-based electronic device described above.
- FIG. 5 is a NOR logic circuit, for example, and is composed of three switching elements Tr1, Tr2, and Tr3. When a high voltage is applied to any one of terminal A and terminal B, a low voltage is output to the output. When a low voltage is applied to both terminals B, a high voltage is applied to the output.
- the NOR logic circuit for example, various logic circuits such as AND, NOT can be implemented as a copper halide semiconductor-based electronic device according to the present invention.
- the copper halide semiconductor-based electronic device according to the present invention has a large band gap, thereby enabling high-power, high-power, high-power devices, and it is possible not to use expensive substrates, thereby reducing production costs and providing a large-area substrate. Since it is possible to grow, productivity can be improved.
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Abstract
Description
격자상수(옹스트롬) | 밴드갭 에너지 (eV) | |
Si | 5.43 | 1.1 (indirect) |
CuCl | 5.42 | 3.399 |
CuBr | 5.68 | 2.91 |
CuI | 6.05 | 2.95 |
Claims (16)
- 기판;상기 기판 상부에 형성된 할로겐화구리(CuHa) 채널층;상기 할로겐화구리 채널층 상부에 형성된 절연층;상기 절연층 상부에 형성된 게이트 전극;상기 게이트 전극의 일측에 위치하도록 상기 할로겐화구리 채널층에 형성되고, n형 불순물을 포함하는 제1 n+ 할로겐화구리층;상기 제1 n+할로겐화구리층 상부에 형성된 드레인 전극;상기 게이트 전극의 타측에 위치하도록 상기 할로겐화구리 채널층에 형성되고, n형 불순물을 포함하는 제2 n+ 할로겐화구리층; 및상기 제2 n+ 할로겐화구리층 상부에 형성된 소오스 전극;을 포함하는 할로겐화구리 반도체 기반 전자소자.
- 제1 항에 있어서,상기 할로겐화구리 채널층은 p형 불순물을 더 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제2 항에 있어서,상기 p형 불순물은 산소(O), 황(S), 셀레늄(Se) 중 어느 하나인 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제1 항에 있어서,상기 n형 불순물은 아연(Zn), 마그네슘(Mg) 중 어느 하나인 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제1 항에 있어서,상기 기판은 실리콘 기판, 갈륨비소 기판, 글래스 기판, 쿼츠기판, 알루미나기판 중 어느 하나인 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제1 항에 있어서,상기 할로겐화구리 채널층은 CuICl 또는 CuBrCl을 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제6 항에 있어서,상기 채널층과 상기 기판 사이에 장벽층을 더 포함하고, 상기 장벽층은 CuCl을 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제1 항에 있어서,상기 기판 및 상기 할로겐화구리 채널층 사이에 버퍼층을 더 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제8 항에 있어서,상기 버퍼층은 CuCl을 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제1 항에 있어서,상기 절연층은 실리콘옥사이드(SiO2) 또는 실리콘나이트라이드(SiN)를 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 기판;n형 불순물을 포함하고, 상기 기판 상부에 형성된 할로겐화구리(CuHa) 채널층;상기 할로겐화구리 채널층 상부에 형성된 절연층;상기 절연층 상부에 형성된 게이트 전극;상기 게이트 전극의 일측에 위치하도록 상기 할로겐화구리 채널층에 형성되고, p형 불순물을 포함하는 제1 p+ 할로겐화구리층;상기 제1 p+할로겐화구리층 상부에 형성된 드레인 전극;상기 게이트 전극의 타측에 위치하도록 상기 할로겐화구리 채널층에 형성되고, p형 불순물을 포함하는 제2 p+ 할로겐화구리층; 및상기 제2 p+ 할로겐화구리층 상부에 형성된 소오스 전극;을 포함하는 할로겐화구리 반도체 기반 전자소자.
- 제11 항에 있어서,상기 p형 불순물은 산소(O), 황(S), 셀레늄(Se) 중 어느 하나이고.상기 n형 불순물은 아연(Zn), 마그네슘(Mg) 중 어느 하나인 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제11 항에 있어서,상기 할로겐화구리 채널층은 CuICl 또는 CuBrCl을 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 제11 항에 있어서,상기 채널층과 상기 기판 사이에 장벽층을 더 포함하고, 상기 장벽층은 CuCl을 포함하는 것을 특징으로 하는 할로겐화구리 반도체 기반 전자소자.
- 전하를 충전 또는 방전함으로써 온/오프를 표시하기 위한 캐패시터; 및상기 캐패시터를 제어하기 위한 스위칭 소자를 포함하고,상기 스위칭 소자는 제1 항 내지 제14 항 중, 어느 한 항에 의한 할로겐화구리 반도체 기반 전자소자로 구현되는 것을 특징으로 하는 기억소자.
- 다수의 스위칭 소자로 구현되고,상기 스위칭 소자중 적어도 하나는, 제1 항 내지 제14 항 중, 어느 한 항에 의한 할로겐화구리 반도체 기반 전자소자로 구현되는 것을 특징으로 하는 논리소자.
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