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LASER PROCESSING METHOD UPDATE

外国特許コード F180009607
整理番号 5573
掲載日 2018年11月16日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP030239
国際公開番号 WO 2018074058
国際出願日 平成29年8月24日(2017.8.24)
国際公開日 平成30年4月26日(2018.4.26)
優先権データ
  • 特願2016-206869 (2016.10.21) JP
発明の名称 (英語) LASER PROCESSING METHOD UPDATE
発明の概要(英語) The present invention is a laser processing method that forms a thermally denatured region inside a transparent member by concentration and irradiation with ultrashort pulse laser light. The ultrashort pulse laser light is constituted of a pulse train P2 wherein peak intensity changes periodically. The pulse train P2 includes, within a single period Ts wherein the peak intensity changes, a maximum pulse Pb1 where the peak intensity is a maximum, a minimum pulse Pb2 where the peak intensity is a minimum, and an intermediate pulse group Pb3 that is formed from a plurality of pulses between the maximum pulse Pb1 and the minimum pulse Pb2 and wherein the peak intensity gradually decreases moving from the maximum pulse Pb1 side to the minimum pulse Pb2 side.
従来技術、競合技術の概要(英語) BACKGROUND ART
In recent years, as one of the laser beam processing method, an extremely small pulse width of the ultrashort-pulse laser beam is focused by light irradiation, the nonlinear light absorption (multiphoton absorption) phenomenon occurs, the inside of the transparent member such as glass and a method of forming the thermal denaturation has been developed (for example, see Patent Document 1).
Non-linear processing method using the laser light absorption, the ultrashort-pulse laser light to locally melt only the light focusing region of the heat has the advantage that the modified region can be formed, for example two in the case of bonding a transparent member such as is available.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NIPPON ELECTRIC GLASS CO., LTD.
  • KYOTO UNIVERSITY
  • 発明者(英語)
  • MASUDA Noriaki
  • MIURA Kiyotaka
  • SHIMOTSUMA Yasuhiko
  • SAKAKURA Masaaki
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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