SG188195A1 - Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods - Google Patents
Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods Download PDFInfo
- Publication number
- SG188195A1 SG188195A1 SG2013008750A SG2013008750A SG188195A1 SG 188195 A1 SG188195 A1 SG 188195A1 SG 2013008750 A SG2013008750 A SG 2013008750A SG 2013008750 A SG2013008750 A SG 2013008750A SG 188195 A1 SG188195 A1 SG 188195A1
- Authority
- SG
- Singapore
- Prior art keywords
- semiconductor structure
- semiconductor
- substrate
- forming
- thin layer
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 430
- 239000000463 material Substances 0.000 title claims abstract description 253
- 238000000034 method Methods 0.000 title claims abstract description 106
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims description 102
- 239000003989 dielectric material Substances 0.000 claims description 54
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 22
- 229920005591 polysilicon Polymers 0.000 claims description 21
- 150000002500 ions Chemical class 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000002210 silicon-based material Substances 0.000 claims description 10
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 5
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 claims 2
- 239000010410 layer Substances 0.000 description 87
- 235000012431 wafers Nutrition 0.000 description 82
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 229910052710 silicon Inorganic materials 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 239000000377 silicon dioxide Substances 0.000 description 9
- 235000012239 silicon dioxide Nutrition 0.000 description 9
- 238000005530 etching Methods 0.000 description 8
- 150000004767 nitrides Chemical class 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000010354 integration Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 238000003486 chemical etching Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910052732 germanium Inorganic materials 0.000 description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- -1 for example Substances 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000010297 mechanical methods and process Methods 0.000 description 2
- 230000005226 mechanical processes and functions Effects 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000003631 wet chemical etching Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 238000002231 Czochralski process Methods 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 101150093156 Rras gene Proteins 0.000 description 1
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 241000724291 Tobacco streak virus Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000008774 maternal effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01L21/70—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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
-
- 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
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
-
- 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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/84—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being other than a semiconductor body, e.g. being an insulating body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/1302—Disposition
- H01L2224/13025—Disposition the bump connector being disposed on a via connection of the semiconductor or solid-state body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16135—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/16145—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Element Separation (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/879,637 US20120061794A1 (en) | 2010-09-10 | 2010-09-10 | Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods |
FR1057676A FR2965397A1 (fr) | 2010-09-23 | 2010-09-23 | Procédés de formation de trous d'interconnexion a travers la tranche dans des structures semi-conductrices au moyen de matériau sacrificiel, et structures semi-conductrices formées par de tels procédés. |
PCT/EP2011/065778 WO2012048973A1 (en) | 2010-09-10 | 2011-09-12 | Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods |
Publications (1)
Publication Number | Publication Date |
---|---|
SG188195A1 true SG188195A1 (en) | 2013-04-30 |
Family
ID=45937917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG2013008750A SG188195A1 (en) | 2010-09-10 | 2011-09-12 | Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods |
Country Status (7)
Country | Link |
---|---|
JP (1) | JP2013537363A (zh) |
KR (1) | KR20130093627A (zh) |
CN (1) | CN103081090A (zh) |
DE (1) | DE112011103040T5 (zh) |
SG (1) | SG188195A1 (zh) |
TW (1) | TW201214627A (zh) |
WO (1) | WO2012048973A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8859425B2 (en) | 2012-10-15 | 2014-10-14 | Micron Technology, Inc. | Devices, systems, and methods related to forming through-substrate vias with sacrificial plugs |
CN105185738B (zh) * | 2014-06-20 | 2018-10-23 | 中芯国际集成电路制造(上海)有限公司 | 一种半导体器件以及制备方法、电子装置 |
US9899260B2 (en) | 2016-01-21 | 2018-02-20 | Micron Technology, Inc. | Method for fabricating a semiconductor device |
DE112016006659T5 (de) * | 2016-05-27 | 2018-12-13 | Intel Corporation | Damaszierte Stopfen- und Zungenstrukturbildung mittels Photobuckets für auf Abstandhalter basierende Back-End-of-Line (BEOL)-Verbindungen |
US20230121210A1 (en) * | 2021-10-12 | 2023-04-20 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor Device and Method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US39484A (en) | 1863-08-11 | Improved smoothing-iron | ||
FR2681472B1 (fr) | 1991-09-18 | 1993-10-29 | Commissariat Energie Atomique | Procede de fabrication de films minces de materiau semiconducteur. |
FR2755537B1 (fr) | 1996-11-05 | 1999-03-05 | Commissariat Energie Atomique | Procede de fabrication d'un film mince sur un support et structure ainsi obtenue |
FR2767416B1 (fr) | 1997-08-12 | 1999-10-01 | Commissariat Energie Atomique | Procede de fabrication d'un film mince de materiau solide |
FR2773261B1 (fr) | 1997-12-30 | 2000-01-28 | Commissariat Energie Atomique | Procede pour le transfert d'un film mince comportant une etape de creation d'inclusions |
FR2795865B1 (fr) | 1999-06-30 | 2001-08-17 | Commissariat Energie Atomique | Procede de realisation d'un film mince utilisant une mise sous pression |
FR2818010B1 (fr) | 2000-12-08 | 2003-09-05 | Commissariat Energie Atomique | Procede de realisation d'une couche mince impliquant l'introduction d'especes gazeuses |
JP3535461B2 (ja) * | 2001-01-10 | 2004-06-07 | 新光電気工業株式会社 | 半導体装置の製造方法及び半導体装置 |
US7960290B2 (en) * | 2007-05-02 | 2011-06-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method of fabricating a semiconductor device |
US7846837B2 (en) * | 2008-10-09 | 2010-12-07 | United Microelectronics Corp. | Through substrate via process |
US7923369B2 (en) * | 2008-11-25 | 2011-04-12 | Freescale Semiconductor, Inc. | Through-via and method of forming |
-
2011
- 2011-08-29 TW TW100130942A patent/TW201214627A/zh unknown
- 2011-09-12 WO PCT/EP2011/065778 patent/WO2012048973A1/en active Application Filing
- 2011-09-12 SG SG2013008750A patent/SG188195A1/en unknown
- 2011-09-12 KR KR1020137009025A patent/KR20130093627A/ko not_active Application Discontinuation
- 2011-09-12 JP JP2013527639A patent/JP2013537363A/ja not_active Withdrawn
- 2011-09-12 CN CN201180042849XA patent/CN103081090A/zh active Pending
- 2011-09-12 DE DE112011103040T patent/DE112011103040T5/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2012048973A1 (en) | 2012-04-19 |
DE112011103040T5 (de) | 2013-07-04 |
KR20130093627A (ko) | 2013-08-22 |
JP2013537363A (ja) | 2013-09-30 |
TW201214627A (en) | 2012-04-01 |
CN103081090A (zh) | 2013-05-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20200168584A1 (en) | Methods of forming bonded semiconductor structures, and semiconductor structures formed by such methods | |
US20120061794A1 (en) | Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods | |
US10163864B1 (en) | Vertically stacked wafers and methods of forming same | |
US9391011B2 (en) | Semiconductor structures including fluidic microchannels for cooling and related methods | |
US20180374751A1 (en) | Novel 3D Integration Method Using SOI Substrates and Structures Produced Thereby | |
US8525343B2 (en) | Device with through-silicon via (TSV) and method of forming the same | |
TW202331983A (zh) | 擴散屏障及其形成方法 | |
US8987137B2 (en) | Method of fabrication of through-substrate vias | |
KR101426362B1 (ko) | 접합 반도체 구조 형성 방법 및 그 방법에 의해 형성된 반도체 구조 | |
TWI445101B (zh) | 暫時性半導體結構接合方法及相關經接合的半導體結構 | |
US20100090317A1 (en) | Interconnect Structures and Methods | |
US11328927B2 (en) | System for integration of elemental and compound semiconductors on a ceramic substrate | |
JP2010157741A (ja) | スカロップ状側壁を有するシリコン貫通ビア | |
US10074567B2 (en) | Method and system for vertical integration of elemental and compound semiconductors | |
US8853077B2 (en) | Through silicon via packaging structures and fabrication method | |
SG188195A1 (en) | Methods of forming through wafer interconnects in semiconductor structures using sacrificial material, and semiconductor structures formed by such methods | |
US8629061B2 (en) | Method for three-dimensional packaging of electronic devices | |
CN114864545A (zh) | 半导体装置的制造方法 | |
FR2965397A1 (fr) | Procédés de formation de trous d'interconnexion a travers la tranche dans des structures semi-conductrices au moyen de matériau sacrificiel, et structures semi-conductrices formées par de tels procédés. |