WO2007000271A1 - Piece de micro-mecanique renforcee - Google Patents
Piece de micro-mecanique renforcee Download PDFInfo
- Publication number
- WO2007000271A1 WO2007000271A1 PCT/EP2006/005959 EP2006005959W WO2007000271A1 WO 2007000271 A1 WO2007000271 A1 WO 2007000271A1 EP 2006005959 W EP2006005959 W EP 2006005959W WO 2007000271 A1 WO2007000271 A1 WO 2007000271A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- silicon
- silicon dioxide
- thickness
- carbon
- amorphous material
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
- G04D3/0074—Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00642—Manufacture or treatment of devices or systems in or on a substrate for improving the physical properties of a device
- B81C1/0065—Mechanical properties
- B81C1/00682—Treatments for improving mechanical properties, not provided for in B81C1/00658 - B81C1/0065
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
- C30B33/005—Oxydation
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
- G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/066—Manufacture of the spiral spring
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
- G04D3/0069—Watchmakers' or watch-repairers' machines or tools for working materials for working with non-mechanical means, e.g. chemical, electrochemical, metallising, vapourising; with electron beams, laser beams
Definitions
- the present invention relates to a micro-mechanical part made of silicon, and having undergone treatment giving it increased mechanical properties.
- a micro-mechanical part of a mechanical clockwork movement that is to say either a part having an active role for example to transmit and / or transforming energy to drive needles to give a time indication on a dial, or a "passive" room for example to position mobiles.
- Silicon is a material that is increasingly used in the manufacture of mechanical parts, especially micro-mechanical parts, whether they are “captive” parts, that is, that remain bound to a substrate on which they were machined, or "free” parts such as parts forming part of the kinematic chain of a watch movement.
- silicon Compared to metals or alloys conventionally used to manufacture micro-mechanical parts, such as gears, articulated parts, or springs, silicon has the advantage of having a density 3 to 4 times lower and therefore to present a very reduced inertia, and to be insensitive to magnetic fields. These advantages are particularly interesting in the field of watchmaking, both as regards isochronism and the running time when the energy source is constituted by a spring.
- Silicon is rightly reputed to be sensitive to shocks, which may be necessary during assembly, inevitable during operation, or fortuitous for example when the user knocks, or drops his wristwatch .
- the present invention therefore aims to provide a solution for improving the mechanical strength of a silicon micro-mechanical part, and in particular its impact resistance.
- the invention relates to a silicon part, all or part of the surface is coated with a thick amorphous material, said part being a moving part in a clockwork mechanism or not.
- the amorphous material is for example an oxide, nitride or silicon carbide or a titanium carbide. Dioxide
- COPY OF CONFSRMATSON Silicon is the preferred material, and in this case its thickness is at least five times greater than the thickness of a native silicon dioxide deposit.
- the invention also relates to a method which makes it possible, particularly by thermal oxidation in the case of silicon dioxide, to form the thick amorphous layer which considerably increases the mechanical properties of said part, as will be seen in the detailed description which follows.
- FIG. 1 represents the initial section of a silicon spiral
- FIG. 2 corresponds to FIG. 1 after depositing an amorphous material
- FIG. 3 shows an additional step of depositing an anti-friction coating.
- the hairspring is obtained from a silicon wafer, having a thickness slightly less than the desired final height for the hairspring, by known micromachining techniques.
- the reactive ion etching technique can be used.
- Figure 1 shows the section of a hairspring having a silicon core, the reference 3 designating the initial outer surface.
- Figure 2 represents the same section of the hairspring. after treatment according to the invention, by surface thermal oxidation between 900 0 C and 1200 0 C.
- the protocol described in the book “Semiconductors devices: physics and technology (Eds John Wiley & Sons, ISBN 0-471-87424-8, 01.01 1985, pp. 341-355).
- the pieces were then mounted in one motion. During the tests, the parts are fixed on a steel axle and undergo tweezing as well as measuring. During the final assembly in motion, the center of the part is driven on a massive axis.
- FIG. 1 The mechanical properties of a spiral made of ordinary silicon (FIG 1) and a modified spiral according to the invention (FIG.2) were also compared in real situation after mounting with the impact test by means of a sheep. pendulum of 5000 g. Two identical movements, in which were mounted respectively an untreated hairspring and a hairspring modified according to the invention were subjected to this strength test.
- the movements equipped with spirals according to the invention have withstood the shocks for a long time and have maintained quite satisfactory walking and isochronism for more than 30 weeks wearing.
- a material, silicon with a material of lesser density, silicon dioxide, the mechanical strength is increased, while logically one could have expected a decrease in mechanical strength.
- the "amorphous thick film” was silicon dioxide. Equivalently it could be formed with other deposition processes, using other materials such as nitride or silicon carbide, or titanium carbide or nitride.
- FIG. 3 there is shown a variant in which an additional step allows to add on the amorphous thick layer 2 a coating 4 made of a material chosen for its tribological properties.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Micromachines (AREA)
- Materials For Medical Uses (AREA)
- Reinforced Plastic Materials (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/994,234 US8339904B2 (en) | 2005-06-28 | 2006-06-21 | Reinforced micro-mechanical part |
EP06776066.0A EP1904901B2 (fr) | 2005-06-28 | 2006-06-21 | Piece de micro-mecanique renforcee |
CN2006800236658A CN101213497B (zh) | 2005-06-28 | 2006-06-21 | 强化的微机械部件 |
JP2008518676A JP2008544290A (ja) | 2005-06-28 | 2006-06-21 | 強化された微小機械部品 |
DE602006004055T DE602006004055D1 (de) | 2005-06-28 | 2006-06-21 | Verstärktes mikromechanisches teil |
HK08113541.9A HK1122365A1 (en) | 2005-06-28 | 2008-12-12 | Reinforced micromechanical part |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05013912.0 | 2005-06-28 | ||
EP05013912 | 2005-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007000271A1 true WO2007000271A1 (fr) | 2007-01-04 |
Family
ID=36997239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/005959 WO2007000271A1 (fr) | 2005-06-28 | 2006-06-21 | Piece de micro-mecanique renforcee |
Country Status (10)
Country | Link |
---|---|
US (1) | US8339904B2 (fr) |
EP (1) | EP1904901B2 (fr) |
JP (2) | JP2008544290A (fr) |
CN (1) | CN101213497B (fr) |
AT (1) | ATE416401T1 (fr) |
CH (1) | CH696881A5 (fr) |
DE (1) | DE602006004055D1 (fr) |
ES (1) | ES2318778T3 (fr) |
HK (1) | HK1122365A1 (fr) |
WO (1) | WO2007000271A1 (fr) |
Cited By (27)
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CH699110A1 (fr) * | 2008-07-10 | 2010-01-15 | Swatch Group Res & Dev Ltd | Procédé de fabrication d'une pièce micromécanique. |
US20100220557A1 (en) * | 2009-03-02 | 2010-09-02 | Montres Breguet S.A. | Bridge or bottom plate for a timepiece movement |
EP2261171A1 (fr) * | 2009-06-09 | 2010-12-15 | Nivarox-FAR S.A. | Pièce de micromécanique composite et son procédé de fabrication |
EP2277822A1 (fr) | 2009-07-23 | 2011-01-26 | Montres Breguet S.A. | Procede de fabrication d'une piece micromecanique en silicium renforce |
JP2011505003A (ja) * | 2007-11-28 | 2011-02-17 | マニュファクチュール エ ファブリック ドゥ モントル エ クロノメートル ユリース ナルダン ル ロクル エス.アー. | 最適化された熱弾性係数を有する機械振動子 |
EP2472340A1 (fr) | 2011-01-03 | 2012-07-04 | Patek Philippe SA Genève | Composant horloger et son procédé de fabrication |
EP2503404A1 (fr) | 2011-03-23 | 2012-09-26 | Patek Philippe SA Genève | Procédé de fabrication d'un composant mécanique, notamment horloger |
EP2730980A1 (fr) * | 2012-11-09 | 2014-05-14 | Nivarox-FAR S.A. | Mécanisme horloger de limitation ou transmission |
WO2014075859A1 (fr) * | 2012-11-16 | 2014-05-22 | Nivarox-Far S.A. | Résonateur moins sensible aux variations climatiques |
EP2781968A1 (fr) * | 2013-03-19 | 2014-09-24 | Nivarox-FAR S.A. | Résonateur moins sensible aux variations climatiques |
WO2015113973A1 (fr) * | 2014-01-29 | 2015-08-06 | Cartier Création Studio Sa | Ressort spiral thermocompensé en céramique comprenant l' élément silicium dans sa composition et son procédé de réglage |
CH709705A1 (fr) * | 2014-05-28 | 2015-11-30 | Sigatec Sa | Procédé de fabrication d'une pièce de micro-mécanique et pièce de micro-mécanique correspondante. |
EP2727880B1 (fr) | 2012-11-05 | 2016-06-08 | GFD Gesellschaft für Diamantprodukte mbH | Composant micromécanique tridimensionnel chanfreiné pour mouvement d'horlogerie et son procédé de fabrication |
WO2017006228A1 (fr) * | 2015-07-03 | 2017-01-12 | Damasko Uhrenmanufaktur KG | Ressort hélicoïdal et procédé de fabrication dudit ressort |
EP3141519A1 (fr) * | 2015-09-08 | 2017-03-15 | Nivarox-FAR S.A. | Procédé de fabrication d'une pièce micromécanique horlogère et ladite pièce micromécanique horlogère |
EP3181940B1 (fr) | 2015-12-18 | 2019-02-06 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Procede de fabrication d'un spiral d'une raideur predeterminee par retrait localise de matiere |
EP3181938B1 (fr) | 2015-12-18 | 2019-02-20 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Procede de fabrication d'un spiral d'une raideur predeterminee par retrait de matiere |
EP3181939B1 (fr) | 2015-12-18 | 2019-02-20 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Procede de fabrication d'un spiral d'une raideur predeterminee par ajout de matiere |
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US10324419B2 (en) | 2009-02-06 | 2019-06-18 | Domasko GmbH | Mechanical oscillating system for a clock and functional element for a clock |
WO2019202378A1 (fr) | 2018-04-16 | 2019-10-24 | Patek Philippe Sa Geneve | Procede de fabrication d'un ressort horloger a base de silicium |
EP3795855A1 (fr) | 2019-09-20 | 2021-03-24 | Patek Philippe SA Genève | Procede de realisation d'un ressort horloger en materiau monocristallin et ressort horloger obtenu par ce procede |
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JP2010261906A (ja) | 2009-05-11 | 2010-11-18 | Seiko Instruments Inc | 時計用歯車及び時計 |
KR20120011050A (ko) | 2009-05-18 | 2012-02-06 | 더 스와치 그룹 리서치 앤 디벨롭먼트 엘티디 | 기계 시스템에 적용하기 위해 높은 마찰동력학적 성능을 갖는 마이크로기계 부품 코팅 방법 |
EP2284629A1 (fr) * | 2009-08-13 | 2011-02-16 | ETA SA Manufacture Horlogère Suisse | Résonateur mécanique thermocompensé |
JP5366318B2 (ja) * | 2009-09-14 | 2013-12-11 | セイコーインスツル株式会社 | デテント脱進機およびデテント脱進機の作動レバーの製造方法 |
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CH711141A2 (fr) | 2015-05-26 | 2016-11-30 | FEHR et Cie SA | Procédé de fabrication d'un cadran de montre noir comportant des nanotubes de carbone, et cadran de montre noir obtenu par un tel procédé. |
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EP3171230B1 (fr) * | 2015-11-19 | 2019-02-27 | Nivarox-FAR S.A. | Composant d'horlogerie a tribologie amelioree |
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EP3285124B1 (fr) | 2016-08-17 | 2020-12-16 | Tronic's Microsystems S.A | Résonateur mécanique pour pièce d'horlogerie ainsi que procédé de réalisation d'un tel résonateur |
US20170285573A1 (en) * | 2016-11-30 | 2017-10-05 | Firehouse Horology, Inc. | Crystalline Compounds for Use in Mechanical Watches and Methods of Manufacture Thereof |
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US11036184B2 (en) | 2016-12-07 | 2021-06-15 | FEHR et Cie SA | Method of fabrication of a black watch dial, and said black watch dial |
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2006
- 2006-06-21 DE DE602006004055T patent/DE602006004055D1/de active Active
- 2006-06-21 EP EP06776066.0A patent/EP1904901B2/fr active Active
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- 2006-06-21 AT AT06776066T patent/ATE416401T1/de active
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- 2006-06-21 CN CN2006800236658A patent/CN101213497B/zh active Active
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JP2011505003A (ja) * | 2007-11-28 | 2011-02-17 | マニュファクチュール エ ファブリック ドゥ モントル エ クロノメートル ユリース ナルダン ル ロクル エス.アー. | 最適化された熱弾性係数を有する機械振動子 |
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EP2518011A3 (fr) * | 2009-06-09 | 2013-01-02 | Nivarox-FAR S.A. | Pièce de micromécanique composite et son procédé de fabrication |
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WO2011009869A1 (fr) | 2009-07-23 | 2011-01-27 | Montres Breguet Sa | Procédé de fabrication d'un pièce micromécanique en silicium renforcé |
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US10001749B2 (en) | 2012-11-16 | 2018-06-19 | Nivarox-Far S.A. | Resonator with reduced sensitivity to climatic variations |
WO2014075859A1 (fr) * | 2012-11-16 | 2014-05-22 | Nivarox-Far S.A. | Résonateur moins sensible aux variations climatiques |
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US11796966B2 (en) | 2018-04-16 | 2023-10-24 | Patek Philippe Sa Geneve | Method for producing a silicon-based timepiece spring |
WO2019202378A1 (fr) | 2018-04-16 | 2019-10-24 | Patek Philippe Sa Geneve | Procede de fabrication d'un ressort horloger a base de silicium |
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EP3795855A1 (fr) | 2019-09-20 | 2021-03-24 | Patek Philippe SA Genève | Procede de realisation d'un ressort horloger en materiau monocristallin et ressort horloger obtenu par ce procede |
EP3825782A1 (fr) | 2019-11-25 | 2021-05-26 | Patek Philippe SA Genève | Composant horloger renforcé |
CN113009808A (zh) * | 2019-12-20 | 2021-06-22 | 尼瓦罗克斯-法尔股份公司 | 特别用于振荡器机构的柔性钟表部件以及包括此部件的钟表机芯 |
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WO2021186332A1 (fr) | 2020-03-19 | 2021-09-23 | Patek Philippe Sa Geneve | Procede de fabrication d'un composant horloger a base de silicium |
Also Published As
Publication number | Publication date |
---|---|
DE602006004055D1 (de) | 2009-01-15 |
HK1122365A1 (en) | 2009-05-15 |
EP1904901B1 (fr) | 2008-12-03 |
JP3154091U (ja) | 2009-10-08 |
CN101213497B (zh) | 2010-11-24 |
EP1904901B2 (fr) | 2013-07-10 |
EP1904901A1 (fr) | 2008-04-02 |
JP2008544290A (ja) | 2008-12-04 |
US20100214880A1 (en) | 2010-08-26 |
CN101213497A (zh) | 2008-07-02 |
US8339904B2 (en) | 2012-12-25 |
ES2318778T3 (es) | 2009-05-01 |
ATE416401T1 (de) | 2008-12-15 |
CH696881A5 (fr) | 2008-01-15 |
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