US6125027A
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Component comprising a capacitor
Assignee: Nexperia BV
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Filing: 1997-07-30
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Granted: 2000-09-26
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Expires: 2017-07-30
Abstract
Abstract A component includes a substrate layer (1) of glass or Al 2 O 3 , an anti-reaction layer (2) or a levelling layer (2), two electrode layers (3, 5) and a dielectric layer (4) as well as such a capacitor. Manufacture a component which provides for cost-effective, surface-mountable (SMD). The anti-reaction layer (2) on the glass substrate (1) or the levelling layer (2) on the Al 2 O 3 -substrate (1) is made of at least one specific material. An anti-reaction layer or a levelling layer (2) of one of the above-mentioned substances or a combination of several substances, enables a dielectric layer (4) to be provided by means of which a high capacitance value is achieved.
Inventors
- 👤 Mareike Klee
- 👤 Wolfgang Brand
- 👤 Wilhelm Hermann
- 👤 Mathieu J. E. Ulenaers
- 👤 Gijsbertus A. C. M. Spierings
- 👤 Hendrikus J. J. M. Van Haren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:18
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/008; H01G4/0085; C; C03; C03C; C03C17/00; C03C17/34; C03C17/3411; C03C17/3417; C03C17/3429; C03C17/3435; C03C17/3447; C03C17/3452; C03C17/36; C03C17/3602; C03C17/3621; C03C17/3642; C03C17/3668; C03C17/3671; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1209; H01G4/1218; H01G4/33; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/23
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
204 words
A component comprising a capacitor, including at least one substrate layer (1) of glass, at least one anti-reaction layer (2) directly on the substrate layer (1), wherein the anti-reaction layer (2) is at least one element of a group consisting of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , TiB 2 , MgF 2 , Y 2 O 3 , Sc 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), a second electrode layer (5) on the dielectric layer (4) and at least two end contacts each having at least 2 surfaces, said surfaces extending over sides of the capacitor, and said contacts are connected to respective first and second electrodes.
Claim 2
Dependent Claim
204 words
A component comprising a capacitor, including at least one substrate layer (1) of glass, at least one anti-reaction layer (2) directly on the substrate layer (1), wherein the anti-reaction layer (2) is at least one element of a group consisting of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , TiB 2 , MgF 2 , Y 2 O 3 , Sc 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), a second electrode layer (5) on the dielectric layer (4) and at least two end contacts each having at least 2 surfaces, said surfaces extending over sides of the capacitor, and said contacts are connected to respective first and second electrodes.
Claim 3
Dependent Claim
103 words
A component as claimed in claim 1 wherein each of the electrode layers (3, 5) is at least one element of a group consisting of Ti/Pt, Ta/Pt, Ti/Pd/Pt, Ir, IrO 2 , IrO 2 O 3 , IrO 2 /Ir, ZrO 2 /Pt, Ti/Cu, Ti/Ni, Ti/NiAl, Ti/(Ni, Al, Cr), Ti/(Ni, Al, Fe), Ti/(Ni, Fe, Cr), Ti/(Ni, Al, Cr, Fe), Ti/(Ni, Fe, Cr, Si), Ti/(Co, Ni, Fe, Cr), Pt x Al 1-x /Pt, Pt/IrO 2 , TiO 2 /Pt, conductive oxides, hybrids of at least one conductive oxide and one noble metal, and hybrids of at least one noble metal and one base metal.
Claim 4
Dependent Claim
25 words
A component as claimed in claim 1 wherein the dielectric layer (4) is a ferroelectric material having a thickness of 10 nm to 2 μm.
Claim 5
Dependent Claim
24 words
A component as claimed in claim 1, further comprising at least one organic or inorganic protective layer (6) atop the second electrode layer (5).
Claim 6
Dependent Claim
183 words
A component comprising a capacitor, including at least one substrate layer (1) of Al 2 O 3 , at least one anti-reaction layer (2) directly on the substrate layer (1), wherein the anti-reaction layer (2) consists of non-crystallizing glass consisting of at least one element of a group consisting of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , CaZrO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , MgF 2 , Y 2 O 3 , Sc 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), and a second electrode layer (5) on the dielectric layer (4).
Claim 7
Dependent Claim
183 words
A component comprising a capacitor, including at least one substrate layer (1) of Al 2 O 3 , at least one anti-reaction layer (2) directly on the substrate layer (1), wherein the anti-reaction layer (2) consists of non-crystallizing glass consisting of at least one element of a group consisting of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , CaZrO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , MgF 2 , Y 2 O 3 , Sc 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), and a second electrode layer (5) on the dielectric layer (4).
Claim 8
Dependent Claim
103 words
A component as claimed in claim 5 wherein each of the electrode layers (3, 5) is at least one element of a group consisting of Ti/Pt, Ta/Pt, Ti/Pd/Pt, Ir, IrO 2 , Ir 2 O 3 , IrO 2 /Ir, ZrO 2 /Pt, Ti/Cu, Ti/Ni, Ti/NiAl, Ti/(Ni, Al, Cr), Ti/(Ni, Al, Fe), Ti/(Ni, Fe, Cr), Ti/(Ni, Al, Cr, Fe), Ti/(Ni, Fe, Cr, Si), Ti/(Co, Ni, Fe, Cr), Pt x Al 1-x /Pt, Pt/IrO 2 , TiO 2 /Pt, conductive oxides, hybrids of at least one conductive oxide and one noble metal, and hybrids of at least one noble metal and one base metal.
Claim 9
Dependent Claim
28 words
A component as claimed in claim 5 wherein the dielectric layer (4) is a layer of a ferroelectric material having a thickness of 10 nm to 2 μm.
Claim 10
Dependent Claim
59 words
A component as claimed in claim 5 wherein each of the electrode layers (3, 5) is a paste comprising a metal powder selected from the group consisting of Ag x Pt 1-x , wherein x=0 . . . 1, Ag x Pd 1-x , wherein x=0 . . . 1, Ag, Cu, Ni, and further comprising an adhesive glass.
Claim 11
Dependent Claim
28 words
A component as claimed in claim 5 wherein the dielectric layer (4) comprises a layer of a ferroelectric material having a thickness of 2 μm to 20 μm.
Claim 12
Dependent Claim
201 words
A capacitor comprising at least one substrate layer (1) of glass, at least one anti-reaction layer (2) on the substrate layer (1), wherein the material used for the anti-reaction layer (2) is at least one element of a group consisting of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , MgF 2 , Y 2 O 3 , Sc 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), a second electrode layer (5) on the dielectric layer (4) and at least two end contacts each having at least 2 surfaces, said surfaces extending over sides of the capacitor, and said contacts are connected to respective first and second electrodes.
Claim 13
Dependent Claim
201 words
A capacitor comprising at least one substrate layer (1) of glass, at least one anti-reaction layer (2) on the substrate layer (1), wherein the material used for the anti-reaction layer (2) is at least one element of a group consisting of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , MgF 2 , Y 2 O 3 , Sc 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), a second electrode layer (5) on the dielectric layer (4) and at least two end contacts each having at least 2 surfaces, said surfaces extending over sides of the capacitor, and said contacts are connected to respective first and second electrodes.
Claim 14
Dependent Claim
180 words
A capacitor comprising at least one substrate layer (1) of Al 2 O 3 , at least one anti-reaction layer (2) directly on the substrate layer (1), wherein the anti-reaction layer (2) consists of non-crystallizing glass consisting of at least one element of a group composed of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , CaZrO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , MgF 2 , Y 2 O 3 , SC 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), and a second electrode layer (5) on the dielectric layer (4).
Claim 15
Dependent Claim
180 words
A capacitor comprising at least one substrate layer (1) of Al 2 O 3 , at least one anti-reaction layer (2) directly on the substrate layer (1), wherein the anti-reaction layer (2) consists of non-crystallizing glass consisting of at least one element of a group composed of TiO 2 , ZrO 2 , HfO 2 , SrTiO 3 , CaTiO 3 , CaZrO 3 , BaTiO 3 , BaZr x Ti 1-x O 3 , wherein x=0 . . . 1, PbZr x Ti 1-x O 3 , wherein x=0 . . . 1, Ta 2 O 5 , Nb 2 O 5 , MgO, BeO, Al 2 O 3 , MgAl 2 O 4 , ZrTiO 4 , BaF 2 , MgF 2 , Y 2 O 3 , SC 2 O 3 , La 2 O 3 and Ln 2 O 3 , Ln being a lanthanide, a first electrode layer (3) on the anti-reaction layer (2), a dielectric layer (4) on the first electrode layer (3), and a second electrode layer (5) on the dielectric layer (4).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-09-26 | 2004-03-27 | 2004-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-26 | 2008-03-27 | 2008-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-26 | 2012-03-27 | 2012-09-26 | $7700.00 | Window Closed / Lapsed |