SG10201402092YA - Laser processing method - Google Patents
Laser processing methodInfo
- Publication number
- SG10201402092YA SG10201402092YA SG10201402092YA SG10201402092YA SG10201402092YA SG 10201402092Y A SG10201402092Y A SG 10201402092YA SG 10201402092Y A SG10201402092Y A SG 10201402092YA SG 10201402092Y A SG10201402092Y A SG 10201402092YA SG 10201402092Y A SG10201402092Y A SG 10201402092YA
- Authority
- SG
- Singapore
- Prior art keywords
- single crystal
- crystal substrate
- laser beam
- pulsed laser
- focusing lens
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
- B23K26/046—Automatically focusing the laser beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0201—Separation of the wafer into individual elements, e.g. by dicing, cleaving, etching or directly during growth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
- H01S5/32341—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0206—Substrates, e.g. growth, shape, material, removal or bonding
- H01S5/021—Silicon based substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0206—Substrates, e.g. growth, shape, material, removal or bonding
- H01S5/0213—Sapphire, quartz or diamond based substrates
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Dicing (AREA)
Abstract
43 OF THE DISCLOSURE A laser processing method of applying a pulsed laser beam to a single crystal substrate to thereby process the single crystal substrate. The laser processing method includes a numerical aperture setting step of setting the numerical aperture (NA) of a focusing lens for focusing the pulsed laser beam so that the value obtained by dividing the numerical aperture (NA) of the focusing lens by the refractive index (N) of the single crystal substrate falls within the range of 0.05 to 0.2, a positioning step of relatively positioning the focusing lens and the single crystal substrate in the direction along the optical axis of the focusing lens so that the focal point of the pulsed laser beam is set at a desired position in the direction along the thickness of the single crystal substrate, and a shield tunnel forming step of applying the pulsed laser beam to the single crystal substrate so as to focus the pulsed laser beam at the focal point set in the single crystal substrate thereby forming a shield tunnel extending between the focal point and a beam incident surface to which the pulsed laser beam is applied. (Figure 3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013101557A JP6151557B2 (en) | 2013-05-13 | 2013-05-13 | Laser processing method |
Publications (1)
Publication Number | Publication Date |
---|---|
SG10201402092YA true SG10201402092YA (en) | 2014-12-30 |
Family
ID=51787772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG10201402092YA SG10201402092YA (en) | 2013-05-13 | 2014-05-06 | Laser processing method |
Country Status (7)
Country | Link |
---|---|
US (1) | US9209591B2 (en) |
JP (1) | JP6151557B2 (en) |
KR (1) | KR102024950B1 (en) |
CN (1) | CN104148816B (en) |
DE (2) | DE202014011497U1 (en) |
SG (1) | SG10201402092YA (en) |
TW (1) | TWI620611B (en) |
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JP2007087973A (en) * | 2005-09-16 | 2007-04-05 | Rohm Co Ltd | Manufacture of nitride semiconductor device, method for manufacturing nitride semiconductor device, and nitride semiconductor light-emitting device obtained by the same |
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-
2013
- 2013-05-13 JP JP2013101557A patent/JP6151557B2/en active Active
-
2014
- 2014-03-27 TW TW103111469A patent/TWI620611B/en active
- 2014-05-06 SG SG10201402092YA patent/SG10201402092YA/en unknown
- 2014-05-08 CN CN201410192756.0A patent/CN104148816B/en active Active
- 2014-05-09 KR KR1020140055321A patent/KR102024950B1/en active IP Right Grant
- 2014-05-13 US US14/276,571 patent/US9209591B2/en active Active
- 2014-05-13 DE DE202014011497.8U patent/DE202014011497U1/en not_active Expired - Lifetime
- 2014-05-13 DE DE102014209012.1A patent/DE102014209012A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE202014011497U1 (en) | 2021-06-29 |
JP6151557B2 (en) | 2017-06-21 |
JP2014221483A (en) | 2014-11-27 |
TW201446385A (en) | 2014-12-16 |
KR20140134220A (en) | 2014-11-21 |
DE102014209012A1 (en) | 2014-11-13 |
US20140334511A1 (en) | 2014-11-13 |
CN104148816A (en) | 2014-11-19 |
TWI620611B (en) | 2018-04-11 |
KR102024950B1 (en) | 2019-09-24 |
US9209591B2 (en) | 2015-12-08 |
CN104148816B (en) | 2017-09-12 |
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