OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4278–4281

In situ detection of laser-induced slip initiation on the silicon wafer surface

Sungho Choi and Kyung-Young Jhang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 14, pp. 4278-4281 (2014)
http://dx.doi.org/10.1364/OL.39.004278


View Full Text Article

Enhanced HTML    Acrobat PDF (580 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We propose a real-time in situ method to detect slip initiation on the surface of silicon wafers during high-power laser beam irradiation. In this method, light is collected from the surface of a silicon wafer subjected to laser irradiation. When the slip is initiated, it strongly scatters the laser beam, allowing detection of the time of the slip initiation based on the resulting sudden increase in the scattering signal. To demonstrate the performance of this method, a silicon wafer specimen was illuminated by a near-infrared continuous-wave fiber laser beam (of wavelength 1070 nm) at four different laser powers, and the scattered light was detected. The scattering signal increased suddenly at the time of slip initiation. To confirm the occurrence of slip, the surface morphologies of the silicon specimens after laser irradiation were analyzed using an optical microscope; surface slips were observed only in the specimens for which the sudden increase in scattering had been detected. Thus, the proposed method is shown to be very effective for the real-time in situ detection of surface slip initiation induced by high-power laser beam irradiation on silicon wafers.

© 2014 Optical Society of America

OCIS Codes
(120.1880) Instrumentation, measurement, and metrology : Detection
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(240.6700) Optics at surfaces : Surfaces

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: April 2, 2014
Manuscript Accepted: June 9, 2014
Published: July 15, 2014

Citation
Sungho Choi and Kyung-Young Jhang, "In situ detection of laser-induced slip initiation on the silicon wafer surface," Opt. Lett. 39, 4278-4281 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-14-4278

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited