WO2000022669A1 - Procede de realisation d'une couche de materiau enterree dans un autre materiau - Google Patents
Procede de realisation d'une couche de materiau enterree dans un autre materiau Download PDFInfo
- Publication number
- WO2000022669A1 WO2000022669A1 PCT/FR1999/002476 FR9902476W WO0022669A1 WO 2000022669 A1 WO2000022669 A1 WO 2000022669A1 FR 9902476 W FR9902476 W FR 9902476W WO 0022669 A1 WO0022669 A1 WO 0022669A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- substrate
- precipitates
- microcavities
- germs
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 239000002244 precipitate Substances 0.000 claims abstract description 41
- 241000894007 species Species 0.000 claims abstract description 20
- 244000052616 bacterial pathogen Species 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 39
- 239000010703 silicon Substances 0.000 claims description 31
- 229910052710 silicon Inorganic materials 0.000 claims description 31
- 230000006911 nucleation Effects 0.000 claims description 15
- 238000010899 nucleation Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 claims description 2
- 238000000407 epitaxy Methods 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 210000002257 embryonic structure Anatomy 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 24
- 239000001301 oxygen Substances 0.000 description 24
- 229910052760 oxygen Inorganic materials 0.000 description 24
- 238000002513 implantation Methods 0.000 description 17
- 238000000137 annealing Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000007547 defect Effects 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 235000012431 wafers Nutrition 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000000155 isotopic effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- 210000004940 nucleus Anatomy 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000478345 Afer Species 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- OBOXTJCIIVUZEN-UHFFFAOYSA-N [C].[O] Chemical class [C].[O] OBOXTJCIIVUZEN-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010070 molecular adhesion Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
- H01L21/263—Bombardment with radiation with high-energy radiation
- H01L21/265—Bombardment with radiation with high-energy radiation producing ion implantation
- H01L21/26506—Bombardment with radiation with high-energy radiation producing ion implantation in group IV semiconductors
- H01L21/26533—Bombardment with radiation with high-energy radiation producing ion implantation in group IV semiconductors of electrically inactive species in silicon to make buried insulating layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76245—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using full isolation by porous oxide silicon, i.e. FIPOS techniques
Definitions
- the present invention relates to a method for producing a layer of material buried in another material. It applies in particular to the field of semiconductors and in particular for the production of substrates of the Silicon on Insulator type.
- Silicon on Insulator type substrates or SOI for "Silicon On Insulator” are of great interest for microelectronic applications in the field of low consumption.
- SOI substrates There are several methods of obtaining SOI substrates. The most used today are the SIMOX process (from the English expression “Separation by IMplanted OXygen") and the processes based on bonding by molecular adhesion
- the most important parameters to control in order to obtain these "blisters" are the dose of gas introduced during implantation, the depth at which the gaseous species are implanted and the total thermal budget supplied to the material.
- the implantation conditions are such that after annealing, microcavities or microbubbles are present at the level of the average implantation depth but their size and the pressure inside these cavities are not sufficient. to induce surface deformations. We are then in the presence of a continuous layer of buried defects without any degradation of the surface.
- microcavities For example, an implantation of hydrogen in a silicon wafer at a dose of 3.10 l ⁇ H + / cm 2 and an energy of 25 keV creates a continuous buried layer of microcavities about 150 nm thick at a average depth of about 300 nm. These microcavities are in elongated form: their size is around 6 nm in length and two atomic planes in thickness. If annealing is carried out at 600 ° C for 30 minutes on this plate, the microcavities grow and see their size go from 6 nm to more than 50 nm in length and from a few atomic planes to 4-6 nm in thickness. On the other hand, no disturbance of the surface is observed.
- microcavities are also observed in the case of implantation by helium bombardment, at the level of the average depth (Rp) of implantation in silicon.
- the cavities in this case, have a stable shape which does not change during annealing.
- V. RAINERI and M. SAGGIO published in Appl. Phys. Lett. 71 (12), September 22, 1997.
- defects present in the materials are preferential nucleation centers for the formation of a heterogeneous phase.
- three types of nucleation are listed in the bibliography: in homogeneous phase, in homogeneous phase under stresses, in heterogeneous phases (see for example the article entitled “ Oxygen Precipitation in Silicon "by A. BORHESI et al., Published in J. Appl. Phys. 77 (9), 1995, pages 4169-4244).
- This precipitating oxygen is contained in the initial material. It comes, for example, from the step of forming the material.
- nucleation By nucleation is meant the formation of aggregates of a few oxygen atoms in silicon to form nucleation centers called “nucleis” or “precipitate embryos” in English.
- nucleation can appear in crystalline sites corresponding to nodes of the network where a few interstitial oxygen atoms are close to each other (homogeneous nucleation) or on network faults (heterogeneous nucleation).
- network faults can be point faults, faults induced by the presence of an element external to the matrix (for example carbon in silicon) or complexes such as for example oxygen-carbon complexes (see the article cited above from A. BORHESI et al.).
- point defects intrinsic to the material such as vacancy clusters formed during the growth of silicon can also be nucleation centers to obtain "nuclei".
- defects induced by the presence of an external element one can cite the case of carbon introduced into the substrate to create a continuous and buried layer rich in carbon which will serve as nucleation zone. The introduction of carbon can be obtained by implantation by carbon bombardment.
- Precipitation in a material is a phenomenon of aggregation of atoms to form small particles or precipitates.
- Ts being the equilibrium temperature corresponding to the quantity of oxygen given
- the defects create nucleation centers which are used to form precipitates which then grow.
- the invention proposes a new method for producing a buried layer of material in a substrate of another material.
- An original aspect of the invention consists in creating microcavities buried in the substrate and not in crystal defects to create traps.
- the substrate is made of silicon
- This makes it possible to obtain a surface layer of silicon of much better quality and does not oblige to subject the substrate to a temperature of the order of 1300 ° C. in order to cure the defects. created by oxygen implantation for example.
- the present invention also has the advantage of being able to implement an implantation with a low dose of a light element (for example hydrogen) which does not induce a crystal defect between the implanted surface and the zone for creating microcavities. , unlike what happens when you implant ions like oxygen, silicon or argon. This process is simple to implement, the implantation can be done at room temperature.
- the subject of the invention is therefore a process for producing a layer of a first material buried in a substrate comprising at least one second material, characterized in that it comprises the following steps:
- microcavities also called “platelets” or microbubbles
- the layer of microcavities can be formed by introducing into the second material gaseous species which are advantageously chosen from hydrogen, helium and fluorine.
- gaseous species which are advantageously chosen from hydrogen, helium and fluorine.
- One can also form a porous layer on one face of the substrate and constitute, by epitaxy, a layer of the second material on the porous layer.
- the layer of microcavities can also be formed by an inclusion of gas caused during the preparation of the substrate. It can also be formed from the interface formed by the joining of a first substrate element and a second substrate, providing said substrate.
- the layer of microcavities can then result from the presence of particles at said interface, from the surface roughness of at least one element from the first substrate element and the second substrate element, from the presence of micro-recesses on the surface. at least one element from the first substrate element and the second substrate element or from stresses induced at said interface.
- Precipitate germs can be formed from species present in the second material. They can also be formed from species introduced into the second material. This introduction can be carried out by thermally activated diffusion. In this case, if the training of microcavities implements a heat treatment, the germs of precipitates can be formed simultaneously with the microcavities.
- the growth of the precipitates can be carried out by concentration of species introduced into the substrate. This introduction can be done by thermally activated diffusion, under pressure or by means of a plasma.
- the growth of the precipitates can be carried out by concentration of species present in the substrate, under the effect of a heat treatment.
- the invention applies in particular to the production of a semiconductor substrate provided with a buried layer. It applies in particular to the production of a silicon substrate provided with a buried layer of silicon oxide.
- the buried layer may or may not be continuous depending on the intended applications. For this, one can play on the density of precipitates, on the use of a mask protecting certain zones of the material subjected to the process of the invention
- the first step consists in forming a layer of microcavities in the substrate referenced 1 in the appended figure.
- a simple technique to implement consists in forming this layer of microcavities by bombarding with hydrogen at doses (for example 3.10 16 H + / cm 2 ) which make it possible to obtain, at the average penetration depth of the particles Rp, and after annealing at 600 ° C for 30 minutes, elongated microcavities the length of which is a few tens of nanometers.
- doses for example 3.10 16 H + / cm 2
- the average depth Rp of the layer of microcavities 2 is approximately 500 nm from the face 3 of the substrate through which the implantation is carried out.
- the width of the layer of microcavities 2 is then of the order of 150 nm.
- the dose dose of implanted / annealed hydrogen formation of the microcavities is highly dependent on the implantation parameters and in particular on the implantation temperature.
- hydrogen is understood to mean gaseous species constituted in their atomic form, in their molecular form, in their ionic form, in their isotopic form (deuterium) or also in their isotopic and ionic form.
- the phase of creation of oxide precipitate seeds can be carried out using oxygen present in the silicon of the substrate, by means of a heat treatment to a temperature between 750 ° C and 800 ° C. Since it is desired to obtain a buried oxide layer, it is preferable that the annealing atmosphere contains oxygen. In this case, a small thickness of oxide is formed on the surface of the substrate. This surface oxide layer can be removed at the end of the process according to the invention.
- the amount of oxygen introduced into the material is controlled by the limit solubility of oxygen in silicon. The higher the temperature, the higher the limit solubility.
- the atmosphere of the annealing is another important point to check. If it is necessary to remain for a long time at 1200 ° C. to introduce oxygen into the silicon matrix, the substrate will also be oxidized on the surface to a significant extent. To keep a maximum of silicon on the surface, an atmosphere with a low oxygen content must be used, for example 5% of oxygen diluted in nitrogen. In this case, for an 8 hour plateau at 1200 ° C., the surface oxide thickness is of the order of 120 nm and the buried oxide layer formed is then approximately 50 nm. A buried layer 2 of oxide 50 nm thick is thus obtained under a thin film 4 of silicon of approximately 350 nm.
- the thicknesses of the oxide layer 2 and of the thin film 4 are therefore conditioned by the implantation energy and the annealing conditions (atmosphere, duration, temperature).
- a variant of the process may consist in implanting helium with a dose of 2.10 16 He + / cm 2 under an implantation energy of 100 keV and performing an annealing at 900 ° C for 55 minutes to obtain a layer of microcavities at an average depth of about 600 nm from the implanted surface.
- the silicon substrate can then be oxidized under conditions (temperature levels and duration) identical to those mentioned above, but starting directly at 900 ° C. There is then obtained, by the same process as above, a buried oxide layer 50 nm thick under a silicon film of around 450 nm thick.
- the invention therefore makes it possible to obtain, from a solid silicon substrate 1, an SOI substrate consisting of a silicon plate 5 covered with a insulating layer 2 itself covered with a thin film 4 of silicon.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Element Separation (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/806,511 US6808967B1 (en) | 1998-10-15 | 1999-10-13 | Method for producing a buried layer of material in another material |
EP99947564A EP1142013A1 (fr) | 1998-10-15 | 1999-10-13 | Procede de realisation d'une couche de materiau enterree dans un autre materiau |
JP2000576489A JP2002527907A (ja) | 1998-10-15 | 1999-10-13 | 他の材料中に埋め込まれた材料層の製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9812950A FR2784796B1 (fr) | 1998-10-15 | 1998-10-15 | Procede de realisation d'une couche de materiau enterree dans un autre materiau |
FR98/12950 | 1998-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000022669A1 true WO2000022669A1 (fr) | 2000-04-20 |
Family
ID=9531613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002476 WO2000022669A1 (fr) | 1998-10-15 | 1999-10-13 | Procede de realisation d'une couche de materiau enterree dans un autre materiau |
Country Status (5)
Country | Link |
---|---|
US (1) | US6808967B1 (fr) |
EP (1) | EP1142013A1 (fr) |
JP (1) | JP2002527907A (fr) |
FR (1) | FR2784796B1 (fr) |
WO (1) | WO2000022669A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6995075B1 (en) * | 2002-07-12 | 2006-02-07 | Silicon Wafer Technologies | Process for forming a fragile layer inside of a single crystalline substrate |
KR100947815B1 (ko) * | 2003-02-19 | 2010-03-15 | 신에쯔 한도타이 가부시키가이샤 | Soi 웨이퍼의 제조 방법 및 soi 웨이퍼 |
US7566482B2 (en) * | 2003-09-30 | 2009-07-28 | International Business Machines Corporation | SOI by oxidation of porous silicon |
US8552616B2 (en) * | 2005-10-25 | 2013-10-08 | The Curators Of The University Of Missouri | Micro-scale power source |
KR101233105B1 (ko) * | 2008-08-27 | 2013-02-15 | 소이텍 | 선택되거나 제어된 격자 파라미터들을 갖는 반도체 물질층들을 이용하여 반도체 구조물들 또는 소자들을 제조하는 방법 |
US7927975B2 (en) | 2009-02-04 | 2011-04-19 | Micron Technology, Inc. | Semiconductor material manufacture |
FR2942073B1 (fr) * | 2009-02-10 | 2011-04-29 | Soitec Silicon On Insulator | Procede de realisation d'une couche de cavites |
EP2502266B1 (fr) * | 2009-11-18 | 2020-03-04 | Soitec | Procédés de fabrication de structures semi-conductrices et dispositifs à semi-conducteurs au moyen de couches de liaison de verre, et structures semi-conductrices et dispositifs à semi-conducteurs formés par de tels procédés |
FR2978600B1 (fr) | 2011-07-25 | 2014-02-07 | Soitec Silicon On Insulator | Procede et dispositif de fabrication de couche de materiau semi-conducteur |
US9481566B2 (en) | 2012-07-31 | 2016-11-01 | Soitec | Methods of forming semiconductor structures including MEMS devices and integrated circuits on opposing sides of substrates, and related structures and devices |
KR20180114927A (ko) * | 2016-02-16 | 2018-10-19 | 쥐-레이 스위츨란드 에스에이 | 접합된 경계면들에 걸친 전하 운반을 위한 구조물, 시스템 및 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56110247A (en) * | 1980-02-04 | 1981-09-01 | Nippon Telegr & Teleph Corp <Ntt> | Forming method of insulation region in semiconductor substrate |
US4837172A (en) * | 1986-07-18 | 1989-06-06 | Matsushita Electric Industrial Co., Ltd. | Method for removing impurities existing in semiconductor substrate |
US5633174A (en) * | 1990-09-24 | 1997-05-27 | Biota Corp. | Type silicon material with enhanced surface mobility |
EP0801419A1 (fr) * | 1996-04-11 | 1997-10-15 | Commissariat A L'energie Atomique | Procédé d'obtention d'un film mince de matériau semiconducteur comprenant notamment des composants électroniques |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3849204A (en) * | 1973-06-29 | 1974-11-19 | Ibm | Process for the elimination of interface states in mios structures |
JPH0734478B2 (ja) * | 1986-07-18 | 1995-04-12 | 松下電器産業株式会社 | 半導体装置の製造方法 |
JPS63271942A (ja) * | 1987-04-28 | 1988-11-09 | Matsushita Electric Ind Co Ltd | シリコン表面の欠陥低減方法 |
US5310689A (en) * | 1990-04-02 | 1994-05-10 | Motorola, Inc. | Method of forming a SIMOX structure |
JPH0479372A (ja) * | 1990-07-23 | 1992-03-12 | Nissan Motor Co Ltd | 半導体基板の製造方法 |
FR2681472B1 (fr) | 1991-09-18 | 1993-10-29 | Commissariat Energie Atomique | Procede de fabrication de films minces de materiau semiconducteur. |
JPH07106512A (ja) * | 1993-10-04 | 1995-04-21 | Sharp Corp | 分子イオン注入を用いたsimox処理方法 |
JP3097827B2 (ja) * | 1995-03-20 | 2000-10-10 | 三菱マテリアル株式会社 | Soi基板の製造方法 |
FR2748850B1 (fr) | 1996-05-15 | 1998-07-24 | Commissariat Energie Atomique | Procede de realisation d'un film mince de materiau solide et applications de ce procede |
US5985742A (en) * | 1997-05-12 | 1999-11-16 | Silicon Genesis Corporation | Controlled cleavage process and device for patterned films |
-
1998
- 1998-10-15 FR FR9812950A patent/FR2784796B1/fr not_active Expired - Fee Related
-
1999
- 1999-10-13 US US09/806,511 patent/US6808967B1/en not_active Expired - Fee Related
- 1999-10-13 JP JP2000576489A patent/JP2002527907A/ja active Pending
- 1999-10-13 EP EP99947564A patent/EP1142013A1/fr not_active Ceased
- 1999-10-13 WO PCT/FR1999/002476 patent/WO2000022669A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56110247A (en) * | 1980-02-04 | 1981-09-01 | Nippon Telegr & Teleph Corp <Ntt> | Forming method of insulation region in semiconductor substrate |
US4837172A (en) * | 1986-07-18 | 1989-06-06 | Matsushita Electric Industrial Co., Ltd. | Method for removing impurities existing in semiconductor substrate |
US5633174A (en) * | 1990-09-24 | 1997-05-27 | Biota Corp. | Type silicon material with enhanced surface mobility |
EP0801419A1 (fr) * | 1996-04-11 | 1997-10-15 | Commissariat A L'energie Atomique | Procédé d'obtention d'un film mince de matériau semiconducteur comprenant notamment des composants électroniques |
Non-Patent Citations (2)
Title |
---|
AKITO HARA ET AL: "OXYGEN PRECIPITATION CONTROL BY HYDROGEN AND PREANNEALING AT 425 C IN CZOCHRALSKI SILICON CRYSTALS", INTERNATIONAL CONFERENCE ON SOLID STATE DEVICES AND MATERIALS, 1 August 1992 (1992-08-01), pages 35 - 37, XP000312169 * |
PATENT ABSTRACTS OF JAPAN vol. 005, no. 181 (E - 083) 20 November 1981 (1981-11-20) * |
Also Published As
Publication number | Publication date |
---|---|
FR2784796A1 (fr) | 2000-04-21 |
JP2002527907A (ja) | 2002-08-27 |
FR2784796B1 (fr) | 2001-11-23 |
EP1142013A1 (fr) | 2001-10-10 |
US6808967B1 (en) | 2004-10-26 |
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