CN103586587A - 一种激光切割硅片的方法 - Google Patents

一种激光切割硅片的方法 Download PDF

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CN103586587A
CN103586587A CN201310489125.0A CN201310489125A CN103586587A CN 103586587 A CN103586587 A CN 103586587A CN 201310489125 A CN201310489125 A CN 201310489125A CN 103586587 A CN103586587 A CN 103586587A
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silicon chip
cutting
laser cutting
blue film
cut
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乔金彪
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Suzhou Si Erte Microtronics AS
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Suzhou Si Erte Microtronics AS
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00Materials to be soldered, welded or cut
    • B23K2103/50Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/142Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/18Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/38Removing material by boring or cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/40Removing material taking account of the properties of the material involved
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment
    • B23K26/703Cooling arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Dicing (AREA)

Abstract

本发明公开了一种激光切割硅片的方法,其特征在于,包括以下步骤:S1:将硅片贴在蓝膜上;S2:贴片后进行烘烤加强蓝膜和硅片的牢固度,制得待切割工件;S3:将待切割工件固定在硅片激光切割机上进行切割,同时切割刀旁边的喷嘴向切割点区域喷射冷却水和工业清洗剂,制得干净的硅片。防止切割过程中硅片和蓝膜的脱落,加强润滑度,提供最佳冷却效果,清除切割时产生的颗粒残留、硅粉,制得干净的硅片,后续步骤中无需对硅片进行清理操作,提高了工作效率。

Description

一种激光切割硅片的方法
技术领域
本发明涉及一种激光切割硅片的方法。 
背景技术
地壳中含量达25.8%的硅元素,为单晶硅的生产提供了取之不尽的源泉。由于硅元素是地壳中储量最丰富的元素之一,对太阳能光伏电池这样注定要进入大规模市场的产品而言,储量的优势也是硅成为光伏主要材料的原因之一。硅片切割是太阳能光伏电池制造工艺中的关键部分。目前,在切割硅片时,硅片激光切割机利用高能激光束照射在硅片表面,使被照射区域局部熔化、气化、从而达到划片切割的目的。因激光是经专用光学系统聚焦后成为一个非常小的光点,能量密度高,因其加工是非接触式的,对硅片本身无机械冲压力,硅片不易变形。热影响极小,划片切割精度高,但在切割的过程中会产生大量的硅粉,这些硅粉残留在硅片上会对硅片造成污染,在后续的加工过程中还需要额外的工序来清洁处理,影响工作效率。 
发明内容
本发明的目的在于克服现有技术中存在的不足,提供一种激光切割硅片的方法,在切割的过程中对切割产生的硅粉及时清理掉,切割完成后无需对硅片进行清洁,提高工作效率。 
为实现上述技术目的,达到上述技术效果,本发明通过以下技术方案实现: 
一种激光切割硅片的方法,其特征在于,包括以下步骤:
S1:将硅片贴在蓝膜上;
S2:贴片后进行烘烤加强蓝膜和硅片的牢固度,制得待切割工件;
S3:将待切割工件固定在硅片激光切割机上进行切割,同时切割刀旁边的喷嘴向切割点区域喷射冷却水和工业清洗剂,制得干净的硅片。
优选的,工业清洗剂中还包括工业润滑剂,由于贴片后进行烘烤,增强了蓝膜和硅片的牢固度,防止切割过程中硅片和蓝膜的脱落,另外在切割的同时还喷射冷却水和工业清洗剂,可以及时清理掉切割时产生的颗粒残留、硅粉,制得干净的硅片,后续步骤中无需对硅片进行清理操作,提高了工作效率。 
本发明的有益效果是:防止切割过程中硅片和蓝膜的脱落,加强润滑度,提供最佳冷却效果,清除切割时产生的颗粒残留、硅粉,制得干净的硅片,后续步骤中无需对硅片进行清理操作,提高了工作效率。 
具体实施方式
下面结合具体的实施例对本发明技术方案作进一步的详细描述,以使本领域的技术人员可以更好的理解本发明并能予以实施,但所举实施例不作为对本发明的限定。 
一种激光切割硅片的方法,包括以下步骤: 
S1:将硅片贴在蓝膜上;
S2:贴片后进行烘烤加强蓝膜和硅片的牢固度,制得待切割工件;
S3:将待切割工件固定在硅片激光切割机上进行切割,同时切割刀旁边的喷嘴向切割点区域喷射冷却水和工业清洗剂,制得干净的硅片。其中硅片厚度在200-400微米之间。
优选的,在步骤S3中,工业清洗剂中还包括工业润滑剂,可以加强润滑度。 
优选的,在步骤S1和S2之间还包括步骤S4:检查硅片和蓝膜之间是否有气泡,如果没有气泡,进入步骤S2,如果有气泡,还需要重新挤掉气泡后方可进入步骤S2中。 
由于贴片后进行烘烤,增强了蓝膜和硅片的牢固度,防止切割过程中硅片和蓝膜的脱落,另外在切割的同时还喷射冷却水和工业清洗剂,可以及时清理掉切割时产生的颗粒残留、硅粉,制得干净的硅片,后续步骤中无需对硅片进行清理操作,提高了工作效率。 
以上仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书内容所作的等效结构或者等效流程变换,或者直接或间接运用在其他相关的技术领域,均同理包括在本发明的专利保护范围内。 

Claims (4)

1.一种激光切割硅片的方法,其特征在于,包括以下步骤:
S1:将硅片贴在蓝膜上;
S2:贴片后进行烘烤加强蓝膜和硅片的牢固度,制得待切割工件;
S3:将待切割工件固定在硅片激光切割机上进行切割,同时切割刀旁边的喷嘴向切割点区域喷射冷却水和工业清洗剂,制得干净的硅片。
2.根据权利要求1所述的一种激光切割硅片的方法,其特征在于,在步骤S3中,所述工业清洗剂中还包括工业润滑剂。
3.根据权利要求1所述的一种激光切割硅片的方法,其特征在于,在步骤S1和S2之间还包括步骤S4:检查硅片和蓝膜之间是否有气泡,如果没有气泡,进入步骤S2。
4.根据权利要求1或2或3所述的一种激光切割硅片的方法,其特征在于,所述硅片厚度在200-400微米之间。
CN201310489125.0A 2013-10-18 2013-10-18 一种激光切割硅片的方法 Pending CN103586587A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106914705A (zh) * 2017-01-23 2017-07-04 苏州五方光电材料有限公司 一种蓝膜切割工艺
CN107068820A (zh) * 2017-05-31 2017-08-18 山东浪潮华光光电子股份有限公司 一种改善GaAs基LED芯片切割过程中掉管芯的方法
CN110854042A (zh) * 2019-11-12 2020-02-28 苏州迈为科技股份有限公司 太阳能电池裂片方法和系统

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106914705A (zh) * 2017-01-23 2017-07-04 苏州五方光电材料有限公司 一种蓝膜切割工艺
CN106914705B (zh) * 2017-01-23 2019-12-31 苏州五方光电材料有限公司 一种蓝膜切割工艺
CN107068820A (zh) * 2017-05-31 2017-08-18 山东浪潮华光光电子股份有限公司 一种改善GaAs基LED芯片切割过程中掉管芯的方法
CN107068820B (zh) * 2017-05-31 2019-03-01 山东浪潮华光光电子股份有限公司 一种改善GaAs基LED芯片切割过程中掉管芯的方法
CN110854042A (zh) * 2019-11-12 2020-02-28 苏州迈为科技股份有限公司 太阳能电池裂片方法和系统

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