[go: up one dir, main page]

SG11201610771SA - Method of manufacturing a substrate - Google Patents

Method of manufacturing a substrate

Info

Publication number
SG11201610771SA
SG11201610771SA SG11201610771SA SG11201610771SA SG11201610771SA SG 11201610771S A SG11201610771S A SG 11201610771SA SG 11201610771S A SG11201610771S A SG 11201610771SA SG 11201610771S A SG11201610771S A SG 11201610771SA SG 11201610771S A SG11201610771S A SG 11201610771SA
Authority
SG
Singapore
Prior art keywords
substrate
manufacturing
Prior art date
Application number
SG11201610771SA
Inventor
Kwang Hong Lee
Chuan Seng Tan
Eugene A Fitzgerald
Eng Kian Kenneth Lee
Original Assignee
Massachusetts Inst Technology
Univ Nanyang Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Massachusetts Inst Technology, Univ Nanyang Tech filed Critical Massachusetts Inst Technology
Publication of SG11201610771SA publication Critical patent/SG11201610771SA/en

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/01Manufacture or treatment
    • H10D84/02Manufacture or treatment characterised by using material-based technologies
    • H10D84/08Manufacture or treatment characterised by using material-based technologies using combinations of technologies, e.g. using both Si and SiC technologies or using both Si and Group III-V technologies
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02107Forming insulating materials on a substrate
    • H01L21/02109Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
    • H01L21/02112Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
    • H01L21/02123Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
    • H01L21/0217Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture 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
    • H01L21/18Manufacture 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
    • H01L21/30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
    • H01L21/302Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
    • H01L21/306Chemical or electrical treatment, e.g. electrolytic etching
    • H01L21/30604Chemical etching
    • H01L21/30612Etching of AIIIBV compounds
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/70Manufacture 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
    • H01L21/71Manufacture of specific parts of devices defined in group H01L21/70
    • H01L21/76Making of isolation regions between components
    • H01L21/762Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
    • H01L21/7624Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
    • H01L21/76251Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D62/00Semiconductor bodies, or regions thereof, of devices having potential barriers
    • H10D62/80Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
    • H10D62/83Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D62/00Semiconductor bodies, or regions thereof, of devices having potential barriers
    • H10D62/80Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
    • H10D62/85Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs
    • H10D62/8503Nitride Group III-V materials, e.g. AlN or GaN
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/40Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00 with at least one component covered by groups H10D10/00 or H10D18/00, e.g. integration of IGFETs with BJTs
    • H10D84/401Combinations of FETs or IGBTs with BJTs
    • H10D84/403Combinations of FETs or IGBTs with BJTs and with one or more of diodes, resistors or capacitors
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/80Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
    • H10D84/82Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/80Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
    • H10D84/82Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
    • H10D84/83Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
    • H10D84/85Complementary IGFETs, e.g. CMOS
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D86/00Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
    • H10D86/201Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates the substrates comprising an insulating layer on a semiconductor body, e.g. SOI

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Recrystallisation Techniques (AREA)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
  • Semiconductor Lasers (AREA)
  • Element Separation (AREA)
SG11201610771SA 2014-07-08 2015-07-06 Method of manufacturing a substrate SG11201610771SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462021810P 2014-07-08 2014-07-08
PCT/SG2015/050198 WO2016007088A1 (en) 2014-07-08 2015-07-06 Method of manufacturing a substrate

Publications (1)

Publication Number Publication Date
SG11201610771SA true SG11201610771SA (en) 2017-01-27

Family

ID=55064575

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201610771SA SG11201610771SA (en) 2014-07-08 2015-07-06 Method of manufacturing a substrate

Country Status (5)

Country Link
US (1) US10049947B2 (en)
JP (1) JP6751385B2 (en)
CN (1) CN107004639B (en)
SG (1) SG11201610771SA (en)
WO (1) WO2016007088A1 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI566328B (en) * 2013-07-29 2017-01-11 高效電源轉換公司 Gallium nitride transistor having a polysilicon layer for generating additional components
US10510560B2 (en) 2015-09-04 2019-12-17 Nanyang Technological University Method of encapsulating a substrate
CN117198983A (en) * 2015-11-20 2023-12-08 环球晶圆股份有限公司 Manufacturing method for flattening semiconductor surfaces
KR20180114904A (en) * 2016-01-20 2018-10-19 메사추세츠 인스티튜트 오브 테크놀로지 Manufacturing of devices on carrier substrates
KR101787435B1 (en) 2016-02-29 2017-10-19 피에스아이 주식회사 Method for manufacturing nanorods
US10773952B2 (en) 2016-05-20 2020-09-15 Qorvo Us, Inc. Wafer-level package with enhanced performance
US10784149B2 (en) 2016-05-20 2020-09-22 Qorvo Us, Inc. Air-cavity module with enhanced device isolation
DE102016109459B4 (en) * 2016-05-23 2019-06-13 X-Fab Semiconductor Foundries Ag Optimized transfer print (transfer printing) between carrier substrates as process, carrier substrate and micro-technical component
CN109844938B (en) 2016-08-12 2023-07-18 Qorvo美国公司 Wafer-level packaging with enhanced performance
US10109502B2 (en) 2016-09-12 2018-10-23 Qorvo Us, Inc. Semiconductor package with reduced parasitic coupling effects and process for making the same
US10749518B2 (en) 2016-11-18 2020-08-18 Qorvo Us, Inc. Stacked field-effect transistor switch
US10068831B2 (en) 2016-12-09 2018-09-04 Qorvo Us, Inc. Thermally enhanced semiconductor package and process for making the same
JP7079940B2 (en) * 2017-01-13 2022-06-03 マサチューセッツ インスティテュート オブ テクノロジー How to Form a Multilayer Structure for Pixelized Display and a Multilayer Structure for Pixelized Display
US10755992B2 (en) 2017-07-06 2020-08-25 Qorvo Us, Inc. Wafer-level packaging for enhanced performance
US10784233B2 (en) 2017-09-05 2020-09-22 Qorvo Us, Inc. Microelectronics package with self-aligned stacked-die assembly
CN109698154B (en) * 2017-10-20 2020-12-15 中芯国际集成电路制造(上海)有限公司 Chip packaging method and chip packaging structure
CN108054200A (en) * 2017-12-21 2018-05-18 深圳市麦思浦半导体有限公司 A kind of manufacturing method and controller of the substrate of power device
CN108321081B (en) * 2018-02-01 2023-05-30 赵中阳 Composite substrate and manufacturing method thereof
US11152363B2 (en) 2018-03-28 2021-10-19 Qorvo Us, Inc. Bulk CMOS devices with enhanced performance and methods of forming the same utilizing bulk CMOS process
WO2019195428A1 (en) 2018-04-04 2019-10-10 Qorvo Us, Inc. Gallium-nitride-based module with enhanced electrical performance and process for making the same
US12046505B2 (en) 2018-04-20 2024-07-23 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same utilizing localized SOI formation
US10804246B2 (en) 2018-06-11 2020-10-13 Qorvo Us, Inc. Microelectronics package with vertically stacked dies
CN112534553B (en) 2018-07-02 2024-03-29 Qorvo美国公司 RF semiconductor device and method for manufacturing the same
US10964554B2 (en) 2018-10-10 2021-03-30 Qorvo Us, Inc. Wafer-level fan-out package with enhanced performance
US11069590B2 (en) 2018-10-10 2021-07-20 Qorvo Us, Inc. Wafer-level fan-out package with enhanced performance
CN109449172A (en) * 2018-10-16 2019-03-08 德淮半导体有限公司 Wafer bonding method
CN109346495A (en) * 2018-11-21 2019-02-15 德淮半导体有限公司 Wafer Bonding Method
US11646242B2 (en) 2018-11-29 2023-05-09 Qorvo Us, Inc. Thermally enhanced semiconductor package with at least one heat extractor and process for making the same
US11851325B2 (en) * 2018-11-30 2023-12-26 Taiwan Semiconductor Manufacturing Co., Ltd. Methods for wafer bonding
CN113632209A (en) 2019-01-23 2021-11-09 Qorvo美国公司 RF semiconductor device and method of manufacturing the same
US12057374B2 (en) 2019-01-23 2024-08-06 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same
US12046570B2 (en) 2019-01-23 2024-07-23 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same
US11387157B2 (en) 2019-01-23 2022-07-12 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same
US12046483B2 (en) * 2019-01-23 2024-07-23 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same
US12125825B2 (en) 2019-01-23 2024-10-22 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same
CN109830484B (en) * 2019-01-28 2020-10-16 浙江大学 A kind of SOI structure and its manufacturing process
GB2602571B (en) 2019-09-27 2024-07-24 New Silicon Corp Pte Ltd Method for fabricating a semiconductor device and the semiconductor device thereof
US12074086B2 (en) 2019-11-01 2024-08-27 Qorvo Us, Inc. RF devices with nanotube particles for enhanced performance and methods of forming the same
US11646289B2 (en) 2019-12-02 2023-05-09 Qorvo Us, Inc. RF devices with enhanced performance and methods of forming the same
US11923238B2 (en) 2019-12-12 2024-03-05 Qorvo Us, Inc. Method of forming RF devices with enhanced performance including attaching a wafer to a support carrier by a bonding technique without any polymer adhesive
US12129168B2 (en) 2019-12-23 2024-10-29 Qorvo Us, Inc. Microelectronics package with vertically stacked MEMS device and controller device
CN113066749A (en) * 2020-01-02 2021-07-02 中国科学院上海微系统与信息技术研究所 Multi-material coplanar heterogeneous integrated structure and preparation method thereof
CN111370321A (en) * 2020-02-07 2020-07-03 中国科学院微电子研究所 Substrate bonding method, three-dimensional integrated substrate and circuit, electronic device and chip
WO2022023630A1 (en) * 2020-07-28 2022-02-03 Soitec Method for transferring a thin layer onto a support substrate provided with a charge trapping layer
US12482731B2 (en) 2020-12-11 2025-11-25 Qorvo Us, Inc. Multi-level 3D stacked package and methods of forming the same
US20220209498A1 (en) * 2020-12-30 2022-06-30 Transwave Photonics, Llc. Quantum cascade laser devices with improved heat extraction
WO2022186857A1 (en) 2021-03-05 2022-09-09 Qorvo Us, Inc. Selective etching process for si-ge and doped epitaxial silicon
WO2023272558A1 (en) * 2021-06-30 2023-01-05 Yangtze Memory Technologies Co., Ltd. Three-dimensional memory device and method for forming the same
US12355024B2 (en) * 2021-11-17 2025-07-08 Taiwan Semiconductor Manufacturing Co., Ltd. Heterogenous integration scheme for III-V/Si and Si CMOS integrated circuits
CN116344448B (en) * 2021-12-17 2025-12-09 苏州龙驰半导体科技有限公司 Method for manufacturing semiconductor device and semiconductor device
CN114530421B (en) * 2022-01-19 2025-07-01 中国科学院上海微系统与信息技术研究所 A method for preparing a device and its structure
US20240071984A1 (en) * 2022-08-23 2024-02-29 Tokyo Electron Limited Next generation bonding layer for 3d heterogeneous integration
US20240175123A1 (en) * 2022-11-29 2024-05-30 Phononics Ltd Fusion bonding of diamond using thermal SiO2

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469863B (en) * 1991-10-15 1993-09-27 Asea Brown Boveri Semiconductor component, semiconductor disk for producing semiconductor component and method for producing such semiconductor disk
JP4027740B2 (en) * 2001-07-16 2007-12-26 株式会社半導体エネルギー研究所 Method for manufacturing semiconductor device
JP2005322745A (en) * 2004-05-07 2005-11-17 Sony Corp Semiconductor device, method for manufacturing semiconductor device, solid-state image sensor, and method for manufacturing solid-state image sensor
FR2888663B1 (en) * 2005-07-13 2008-04-18 Soitec Silicon On Insulator METHOD OF REDUCING THE ROUGHNESS OF A THICK LAYER OF INSULATION
KR20080033341A (en) * 2005-08-03 2008-04-16 엠이엠씨 일렉트로닉 머티리얼즈, 인크. Strained Silicon on Insulator Structure with Improved Crystallinity in the Strained Silicon Layer
US7485968B2 (en) * 2005-08-11 2009-02-03 Ziptronix, Inc. 3D IC method and device
JP5366517B2 (en) * 2007-12-03 2013-12-11 株式会社半導体エネルギー研究所 Method for manufacturing semiconductor device
US8193071B2 (en) * 2008-03-11 2012-06-05 Semiconductor Energy Laboratory Co., Ltd. Method for manufacturing semiconductor device
JP2010287817A (en) * 2009-06-15 2010-12-24 Shin-Etsu Chemical Co Ltd Manufacturing method of SOI substrate with Ge film and SOI substrate with Ge film
US20110299166A1 (en) * 2010-06-07 2011-12-08 Aegis Lightwave, Inc. Thermally Tunable Optical Filter with Single Crystalline Spacer Fabricated by Fusion Bonding
CN101901753B (en) * 2010-06-25 2012-05-23 上海新傲科技股份有限公司 Method for preparing thick-film material with insulating embedded layer
US8536021B2 (en) * 2010-12-24 2013-09-17 Io Semiconductor, Inc. Trap rich layer formation techniques for semiconductor devices
JP6019599B2 (en) * 2011-03-31 2016-11-02 ソニー株式会社 Semiconductor device and manufacturing method thereof
TWI509713B (en) * 2011-03-31 2015-11-21 梭意泰科公司 Method of forming a bonded semiconductor structure and semiconductor structure formed by the method
JP5417399B2 (en) * 2011-09-15 2014-02-12 信越化学工業株式会社 Manufacturing method of composite wafer
US8865507B2 (en) * 2011-09-16 2014-10-21 Sionyx, Inc. Integrated visible and infrared imager devices and associated methods
US9685513B2 (en) * 2012-10-24 2017-06-20 The United States Of America, As Represented By The Secretary Of The Navy Semiconductor structure or device integrated with diamond

Also Published As

Publication number Publication date
JP2017525149A (en) 2017-08-31
CN107004639A (en) 2017-08-01
JP6751385B2 (en) 2020-09-02
US10049947B2 (en) 2018-08-14
US20170200648A1 (en) 2017-07-13
CN107004639B (en) 2021-02-05
WO2016007088A1 (en) 2016-01-14

Similar Documents

Publication Publication Date Title
SG11201610771SA (en) Method of manufacturing a substrate
HUE051760T2 (en) Method of manufacturing a semiconductor module
PL3206816T3 (en) Method of manufacturing a component and component
ZA201804163B (en) Method of tagging a substrate
HUE062315T2 (en) Method of manufacturing a tube
GB201416223D0 (en) Manufacturing method
GB2541146B (en) Method of manufacturing a germanium-on-insulator substrate
GB201421768D0 (en) Method of manufacturing a seal
PL2927017T5 (en) Method of covering a substrate
GB201406135D0 (en) Method of etching
SG11201700614VA (en) Method of manufacturing coated tool
GB201701519D0 (en) Substrate manufacture
SG11201802818VA (en) Method of manufacturing a germanium-on-insulator substrate
TWI562220B (en) Manufacturing method of semiconductor structure
SG11201803235SA (en) Method of manufacturing a hybrid substrate
PL3221068T3 (en) Method for manufacturing a rotationally symmetrical shaped article
GB201402126D0 (en) Method of processing a substrate
SG10201913219RA (en) Method for manufacturing a substrate
GB201419681D0 (en) Manufacturing method
GB201416350D0 (en) A method of fitting
GB2527740B (en) Manufacturing method
SG11201702400TA (en) Method for manufacturing magnetic-disk substrate
IL239014A (en) Method of manufacturing a phylactery and a phylactery manufactured thereby
SG11201607714WA (en) Method for coating cavities of a semiconductor substrate
SG11201608466XA (en) Perforated substrate and a method of manufacture