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1. EP2600390 - CHIP MANUFACTURING METHOD

官庁 欧州特許庁(EPO)
出願番号 11812308
出願日 19.07.2011
公開番号 2600390
公開日 05.06.2013
公報種別 B1
IPC
B23K 26/00
B処理操作;運輸
23工作機械;他に分類されない金属加工
Kハンダ付またはハンダ離脱;溶接;ハンダ付または溶接によるクラッドまたは被せ金;局部加熱による切断,例.火炎切断:レーザービームによる加工
26レーザービームによる加工,例.溶接,切断または穴あけ
B23K 26/04
B処理操作;運輸
23工作機械;他に分類されない金属加工
Kハンダ付またはハンダ離脱;溶接;ハンダ付または溶接によるクラッドまたは被せ金;局部加熱による切断,例.火炎切断:レーザービームによる加工
26レーザービームによる加工,例.溶接,切断または穴あけ
02加工物の位置決めまたは観察,例.照射点に関するもの;レーザービームの軸合せ,照準または焦点合せ
04レーザービームの自動軸合せ,自動照準,または自動焦点合せ,例.後散乱光を用いるもの
B23K 26/38
B処理操作;運輸
23工作機械;他に分類されない金属加工
Kハンダ付またはハンダ離脱;溶接;ハンダ付または溶接によるクラッドまたは被せ金;局部加熱による切断,例.火炎切断:レーザービームによる加工
26レーザービームによる加工,例.溶接,切断または穴あけ
36材料の除去
38穴あけまたは切断
B23K 26/382
B処理操作;運輸
23工作機械;他に分類されない金属加工
Kハンダ付またはハンダ離脱;溶接;ハンダ付または溶接によるクラッドまたは被せ金;局部加熱による切断,例.火炎切断:レーザービームによる加工
26レーザービームによる加工,例.溶接,切断または穴あけ
36材料の除去
38穴あけまたは切断
382穴あけ
H01L 21/78
H電気
01基本的電気素子
L半導体装置,他に属さない電気的固体装置
21半導体装置または固体装置またはそれらの部品の製造または処理に特に適用される方法または装置
701つの共通基板内または上に形成された複数の固体構成部品または集積回路からなる装置またはその特定部品の製造または処理;集積回路装置またはその特定部品の製造
771つの共通基板内または上に形成される複数の固体構成部品または集積回路からなる装置の製造または処理
78複数の別個の装置に基板を分割することによるもの
CPC
H01L 21/78
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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
77Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
78with subsequent division of the substrate into plural individual devices
H01L 21/7806
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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
77Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
78with subsequent division of the substrate into plural individual devices
7806involving the separation of the active layers from a substrate
B23K 26/04
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
04Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
H01L 21/203
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
20Deposition of semiconductor materials on a substrate, e.g. epitaxial growth ; solid phase epitaxy
203using physical deposition, e.g. vacuum deposition, sputtering
H01L 21/304
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
302to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
304Mechanical treatment, e.g. grinding, polishing, cutting
H01L 21/30625
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
21Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
02Manufacture or treatment of semiconductor devices or of parts thereof
04the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
18the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
30Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
302to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
306Chemical or electrical treatment, e.g. electrolytic etching
30625With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
出願人 HAMAMATSU PHOTONICS KK
発明者 SHIMOI HIDEKI
ARAKI KEISUKE
指定国 (国コード)
優先権情報 2010167440 26.07.2010 JP
2011066344 19.07.2011 JP
発明の名称
(DE) CHIP-HERSTELLUNGSVERFAHREN
(EN) CHIP MANUFACTURING METHOD
(FR) PROCÉDÉ DE FABRICATION D'UNE PUCE
要約
(EN)
A method for manufacturing a chip constituted by a functional device formed on a substrate comprises a functional device forming step of forming the functional device on one main face of a sheet-like object to be processed made of silicon; a first modified region forming step of converging a laser light at the object so as to form a first modified region along the one main face of the object at a predetermined depth corresponding to the thickness of the substrate from the one main face; a second modified region forming step of converging the laser light at the object so as to form a second modified region extending such as to correspond to a side edge of the substrate as seen from the one main face on the one main face side in the object such that the second modified region joins with the first modified region along the thickness direction of the object; and an etching step of selectively advancing etching along the first and second modified regions after the first and second modified region forming steps so as to cut out a part of the object and form the substrate.

(FR)
Cette invention se rapporte à un procédé de fabrication d'une puce qui comprend un élément fonctionnel formé sur un substrat. Ledit procédé comprend : une étape de formation d'un élément fonctionnel dans laquelle un élément fonctionnel est formé sur une surface principale d'un objet cible plat formé à partir de silicium ; une étape de formation d'une première région modifiée dans laquelle une lumière laser est focalisée sur l'objet cible de façon à former une première région modifiée parallèle à la surface principale mentionnée ci-dessus de l'objet cible à une profondeur prescrite à partir de ladite surface principale, ladite profondeur prescrite correspondant à l'épaisseur du substrat mentionné ci-dessus ; une étape de formation d'une seconde région modifiée dans laquelle la lumière laser est focalisée sur l'objet cible de façon à former une seconde région modifiée dans la direction de l'épaisseur de l'objet cible de façon à réaliser une connexion avec la première région modifiée, ladite seconde région modifiée s'étendant à partir de la surface principale mentionnée ci-dessus de l'objet cible de façon à correspondre aux bords du substrat dans une vue à partir de ladite surface principale ; et une étape de gravure, après les étapes de formation d'une première et d'une seconde région modifiée, dans laquelle une gravure est faite de façon à progresser de manière sélective le long des première et seconde régions modifiées de façon à couper une partie de l'objet cible, en formant de ce fait le substrat mentionné ci-dessus.