WO2018111136A1 - Semiconductor resistor - Google Patents
Semiconductor resistor Download PDFInfo
- Publication number
- WO2018111136A1 WO2018111136A1 PCT/RU2016/000910 RU2016000910W WO2018111136A1 WO 2018111136 A1 WO2018111136 A1 WO 2018111136A1 RU 2016000910 W RU2016000910 W RU 2016000910W WO 2018111136 A1 WO2018111136 A1 WO 2018111136A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- semiconductor
- intermetallic
- contacts
- nickel
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 56
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 18
- 229910003310 Ni-Al Inorganic materials 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000011253 protective coating Substances 0.000 claims abstract description 7
- KASDAGLLEDDKAA-UHFFFAOYSA-N [S--].[Sm++] Chemical compound [S--].[Sm++] KASDAGLLEDDKAA-UHFFFAOYSA-N 0.000 claims description 8
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 4
- 229910002601 GaN Inorganic materials 0.000 claims description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 74
- 239000011241 protective layer Substances 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 238000001771 vacuum deposition Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- -1 samarium-nickel monosulfide Chemical compound 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- YCBVXVXZFSOMTD-UHFFFAOYSA-N [Co].[Sm].[S] Chemical compound [Co].[Sm].[S] YCBVXVXZFSOMTD-UHFFFAOYSA-N 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/84—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by variation of applied mechanical force, e.g. of pressure
Definitions
- the invention relates to techniques for semiconductor devices, in particular to the manufacture of thermo- and strain gauges based on strain-sensitive semiconductor materials.
- a semiconductor strain gauge or bar resistor based on a semiconductor material - samarium monosulfide SmS.
- the semiconductor resistor is formed on a glass substrate and includes a tape-shaped polycrystalline Samarium monosulfide SmS layer equipped with current collector contacts (contact pads with contact tracks) made of nickel by vacuum deposition and located on a part of the surface of the samarium monosulfide layer and the substrate (SU 1820790 A1 , H01L 21/34, publ. 1995.03.27.).
- a disadvantage of the known semiconductor resistor is the high ohmic contact resistance (samarium-nickel monosulfide), nickel peeling and a rather high temperature dependence of the contact resistance, which reduces the operational and metrological characteristics of the semiconductor resistor based on samarium monosulfide used as a strain gauge. Low mechanical resistance, high noise level, significant measurement errors during dynamic temperature changes. To partially eliminate these drawbacks, it is necessary to additionally use expensive and time-consuming operations, in particular, additional repeated mechanical impact on the contact pads of nickel, cobalt, by pressing the indenter until the contact resistance is constant (SU 238434, H01L 21/02, publ. 1994.12.15 .).
- a semiconductor resistor is also known in the art, including an insulating layer of silicon oxide, glass or mica formed on a substrate, a semiconductor layer located thereon — samarium monosulfide in the form of a tape (parallelepiped) with a thickness of 0.5-1.0 ⁇ m.
- the semiconductor layer is provided at the ends with current collector contacts (including contact tracks) made of nickel or cobalt by vacuum deposition and located on part of the layer surface monosulfide of samarium and an insulating layer (WO 99/24804, G01L 1/22, 25/00, 27/00, publ. 1999.05.25.).
- the disadvantage of this semiconductor resistor is the high ohmic contact resistance of samarium-nickel monosulphide (samarium-cobalt monosulphide), peeling of the deposited metal from the substrate and a rather high temperature dependence of the contact resistance, which reduces the operational and metrological characteristics of the semiconductor resistor used as a strain gauge: low mechanical resistance, high noise level, significant measurement errors with dynamic changes in temperature urs, changing the electrical parameters over time.
- the closest analogue of the claimed invention is a semiconductor resistor based on strain-sensitive semiconductor materials of the sensor of mechanical quantities.
- the semiconductor resistor includes an insulating layer formed on the substrate, a semiconductor layer on it in the form of a tape 0.1-1.0 ⁇ m thick, provided at the ends with contacts made in the form of a metal layer located on a part of the surface of the semiconductor layer and the insulating layer.
- the contacts are made of three layers, with the first layer located on a part of the semiconductor surface and the insulating layer made of aluminum, the middle layer is made of an alloy of aluminum with nickel or cobalt, and the outer layer is made of nickel or cobalt (RU 2367062 CI, H01L29 / 84, publ. 10.09.2009).
- a disadvantage of the known semiconductor resistor is a narrow range of operating temperatures from -40 to +125 ° C, the complexity of the operation of microwelding aluminum current leads to nickel contacts, as well as the low reliability of the obtained connection. At temperatures above 250 ° C, the surface layer of nickel contacts is oxidized and the protective layer peels off the contact tracks.
- the problem solved by the claimed invention is the creation of a semiconductor resistor based on strain-sensitive semiconductor materials, which when used as an element (s) of a strain gauge sensor of mechanical quantities provides higher technical parameters and increased reliability of the welded connection of the output conductors of the sensor when working in conditions of elevated temperatures up to 350 ° C.
- the technical result of the claimed invention is to increase the heat resistance of a semiconductor resistor, increase the stability of electrical parameters, increase the reliability of the formed welded electrical connections and increase resistance to aggressive environments at elevated temperatures.
- the semiconductor resistor includes an insulating layer formed on the substrate, on top of which a semiconductor layer is formed, provided at the ends with contacts made of metal layers, characterized in that the contacts are made of four layers, and the first layer is located on part of the surface semiconductor and on the part of the insulating layer is made of aluminum, the second layer is made of intermetallic Ni-Al, the third layer of contact tracks is made of nor cell, and the fourth layer is made of intermetallic Ni-Al, and this structure is additionally coated with an outer layer of protective coating.
- the external protective coating is made of silicon oxide SiO.
- the semiconductor layer consists of a substance selected from the group: samarium monosulfide, silicon, gallium arsenide, gallium nitride.
- the semiconductor layer has a polycrystalline structure.
- the intermetallic layers are made of an alloy containing an alloy of nickel and aluminum.
- FIG. 1 semiconductor resistor
- the semiconductor resistor includes an insulating layer (2) formed on the substrate (1). On top of which a semiconductor layer (3) is formed, provided at the ends with contacts with contact paths necessary to ensure electrical connection of the semiconductor resistor.
- the contacts are located on the edges of the surface of the semiconductor layer (3) with the transition to the insulating layer (2).
- the contacts are made of four layers: the first layer (4), located at the edges on part of the semiconductor surface and on the part of the insulating layer and is made of aluminum, the next layer (5) is made of Ni-Al intermetallic compound, on which nickel layer (6) is formed, the outer layer (7) is also made of intermetallic Ni-Al.
- the resulting structure is covered with a layer (8) of silicon oxide SiO, which ensures the stability of a semiconductor resistor in aggressive environments.
- the semiconductor layer (3) consists of a substance selected from the group: lanthanide monosulfides, silicon, gallium arsenide, gallium nitride; the semiconductor layer (3) has a polycrystalline structure; layers (5 and 7) of intermetallic compounds are composed of nickel and aluminum; between the layers (5 and 7) of the intermetallic compounds there is a layer (6) of nickel; the insulating layer (2) is made of silicon oxide, aluminum oxide, silicon carbide; additionally includes a layer (8) of an external protective coating made of silicon oxide SiO.
- a semiconductor resistor based on the strain-sensitive semiconductor materials according to the invention as an element of the strain gauge sensor of mechanical quantities is made as follows.
- the thickness of the insulating layer depends on the required breakdown voltage of the final product.
- a semiconductor layer (3) with a polycrystalline structure (samarium monosulfide, gallium arsenide, etc.) is usually formed in the form of a tape (parallelepiped), the sizes are selected depending on the required resistance value.
- contacts and communication paths are formed - conductors, which provide an electrical connection of the semiconductor resistor with other elements of the strain gauge sensor.
- the contacts are four-layer.
- an aluminum layer (4) is applied onto which a Ni-Al intermetallic layer (5) is applied.
- the intermetallic layer (5) is intended to provide good adhesive properties of two dissimilar metals.
- the main layer (6) of the contact tracks is formed, consisting of nickel (6), which ensures the stability of the electrical properties of the conductive tracks.
- a Ni-Al intermetallic layer (7) is formed on top of the nickel layer (6).
- the layer (7) is necessary to ensure the simplicity and reliability of the connection of the semiconductor resistor according to the invention and the sensor as a whole to the measuring instruments.
- the surface layer (7) of the Ni-Al intermetallic compound increases the adhesion of the protective layer to the connecting tracks and contacts.
- an outer layer (8) of a protective coating made of silicon oxide SiO is applied, which ensures the stability of the semiconductor resistor in aggressive environments.
- Example 1 We used a semiconductor resistor according to the invention, the elements of which were obtained by vacuum deposition, including an insulating layer of silicon oxide SiO with a thickness of 5 ⁇ m, a layer of polycrystalline samarium monosulfide 0.5 ⁇ m thick and 200 ⁇ m wide.
- the advantage of the semiconductor resistors according to the invention at temperatures above 250 ° C was: open, not protected by an external layer of SiO, metal contacts did not oxidize and retained their electrical and mechanical properties; not peeling of the SiO protective layer from the surface layer of metal contacts and connecting paths occurred.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2016149195 | 2016-12-14 | ||
RU2016149195A RU2655698C1 (en) | 2016-12-14 | 2016-12-14 | Semiconductor resistor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018111136A1 true WO2018111136A1 (en) | 2018-06-21 |
Family
ID=62559103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2016/000910 WO2018111136A1 (en) | 2016-12-14 | 2016-12-22 | Semiconductor resistor |
Country Status (2)
Country | Link |
---|---|
RU (1) | RU2655698C1 (en) |
WO (1) | WO2018111136A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU897052A1 (en) * | 1980-07-18 | 1984-05-30 | Проектно-Технологический И Научно-Исследовательский Институт | Method for making semiconductor devices with resistors |
RU2024989C1 (en) * | 1990-10-22 | 1994-12-15 | Физико-технический институт им.А.Ф.Иоффе РАН | Process of manufacture of ohmic contacts for semiconductor resistors based on monosulfide of samarium |
WO1999024804A1 (en) * | 1997-11-06 | 1999-05-20 | Powerco S.P.A. | A strain gauge strip and applications thereof |
RU2367062C1 (en) * | 2008-05-15 | 2009-09-10 | Общество с ограниченной ответственностью "Сенсор" | Semiconductor resistor |
RU129214U1 (en) * | 2012-10-22 | 2013-06-20 | Светлана Викторовна Чуппина | HIGH TEMPERATURE SEMICONDUCTOR TENSOR RESISTOR |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1820790A1 (en) * | 1991-05-30 | 1995-03-27 | Физико-технический институт им.А.Ф.Иоффе | Process of manufacture of semiconductor strain gauges based on samarium monosulfide |
DE19527209A1 (en) * | 1995-07-27 | 1997-01-30 | Philips Patentverwaltung | Semiconductor device |
RU2367061C1 (en) * | 2008-05-15 | 2009-09-10 | Общество с ограниченной ответственностью "Сенсор" | High-voltage strain sensor |
US20140159180A1 (en) * | 2012-12-06 | 2014-06-12 | Agency For Science, Technology And Research | Semiconductor resistor structure and semiconductor photomultiplier device |
-
2016
- 2016-12-14 RU RU2016149195A patent/RU2655698C1/en active
- 2016-12-22 WO PCT/RU2016/000910 patent/WO2018111136A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU897052A1 (en) * | 1980-07-18 | 1984-05-30 | Проектно-Технологический И Научно-Исследовательский Институт | Method for making semiconductor devices with resistors |
RU2024989C1 (en) * | 1990-10-22 | 1994-12-15 | Физико-технический институт им.А.Ф.Иоффе РАН | Process of manufacture of ohmic contacts for semiconductor resistors based on monosulfide of samarium |
WO1999024804A1 (en) * | 1997-11-06 | 1999-05-20 | Powerco S.P.A. | A strain gauge strip and applications thereof |
RU2367062C1 (en) * | 2008-05-15 | 2009-09-10 | Общество с ограниченной ответственностью "Сенсор" | Semiconductor resistor |
RU129214U1 (en) * | 2012-10-22 | 2013-06-20 | Светлана Викторовна Чуппина | HIGH TEMPERATURE SEMICONDUCTOR TENSOR RESISTOR |
Also Published As
Publication number | Publication date |
---|---|
RU2655698C1 (en) | 2018-05-29 |
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