CN117457572B - 一种用于真空反应腔的晶圆交换装置 - Google Patents
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Abstract
本发明公开了一种用于真空反应腔的晶圆交换装置,晶圆交换装置包括顶针机构Ⅰ、顶针机构Ⅱ、真空机械手及驱动装置;顶针机构Ⅰ、顶针机构Ⅱ同心设置,且顶针机构Ⅱ位于顶针机构Ⅰ外围,待加工晶圆、已加工晶圆分别与顶针机构Ⅰ、顶针机构Ⅱ配合,顶针机构Ⅰ、顶针机构Ⅱ交替竖直升降,真空机械手设有分离型手指,分离型手指张开用于避让顶针机构Ⅰ的升降运动,驱动装置驱动真空机械手一次伸出、缩回动作完成待加工晶圆、已加工晶圆的抓取及搬运。本发明通过顶针机构Ⅰ、顶针机构Ⅱ交替升降,实现待加工晶圆、已加工晶圆的交换及搬运,大大提高了晶圆传输效率。
Description
技术领域
本发明涉及半导体设备技术领域,具体涉及一种用于真空反应腔的晶圆交换装置。
背景技术
常见的真空晶圆加工传输系统结构如图1所示,晶圆盒被放置在装载台9上,装载台9完成晶圆盒开盒工作,真空传输平台3与真空锁5之间的真空门阀2关闭,隔绝真空传输平台3和真空锁5,真空锁5充气到大气环境。真空传输平台3常用于真空晶圆加工系统中晶圆搬运,真空锁5主要用于实现真空和大气切换,使得真空传输平台3和真空反应腔Ⅰ1一直维持在真空环境内。
大气门阀6打开,大气机械手7将晶圆盒中的晶圆10搬运到真空锁5中,大气门阀6关闭后将真空锁5抽气到真空环境。真空锁5侧真空门阀2打开,真空传输平台3中的真空机械手Ⅰ4将真空锁5中晶圆10取出,打开真空反应腔Ⅰ1侧的真空门阀2,并将晶圆10放置在真空反应腔Ⅰ1中完成加工。
如图2所示,现有的真空反应腔Ⅰ1内设有顶针系统,顶针11在气缸13带动下将晶圆10抬升脱离真空机械手Ⅰ4,真空机械手Ⅰ4缩回,顶针11下落将晶圆10放置在晶圆载台Ⅰ12上。由此可见,晶圆10的搬运由真空机械手Ⅰ4完成,真空机械手Ⅰ4完成一次伸出、缩回动作仅实现一片晶圆10的搬运,效率低下。
发明内容
有鉴于此,本发明提供了一种用于真空反应腔的晶圆交换装置,能够提高晶圆传输效率。
本发明采用的技术方案如下:
一种用于真空反应腔的晶圆交换装置,包括顶针机构Ⅰ、顶针机构Ⅱ、真空机械手及驱动装置;
所述顶针机构Ⅰ、顶针机构Ⅱ同心设置,且所述顶针机构Ⅱ位于顶针机构Ⅰ外围,待加工晶圆、已加工晶圆分别与所述顶针机构Ⅰ、顶针机构Ⅱ配合,所述顶针机构Ⅰ、顶针机构Ⅱ交替竖直升降,所述真空机械手设有分离型手指,所述分离型手指张开用于避让顶针机构Ⅰ的升降运动,所述驱动装置驱动所述真空机械手一次伸出、缩回动作完成待加工晶圆、已加工晶圆的抓取及搬运;
真空反应腔内完成加工后,顶针机构Ⅱ带动已加工晶圆竖直升起,真空机械手将待加工晶圆传输到已加工晶圆下方、晶圆载台上方,顶针机构Ⅰ竖直升起将待加工晶圆顶起脱离真空机械手;所述真空机械手设有分离型手指,分离型手指在驱动装置驱动下张开避让顶针机构Ⅰ,顶针机构Ⅰ带动待加工晶圆降落在晶圆载台上,真空机械手复位,顶针机构Ⅱ下降将已加工晶圆放置到真空机械手上,真空机械手缩回。
有益效果:
1、本发明设置顶针机构Ⅰ、顶针机构Ⅱ分别与待加工晶圆、已加工晶圆配合,顶针机构Ⅰ、顶针机构Ⅱ交替升降,真空机械手设有分离型手指,分离型手指张开能够避让顶针机构Ⅰ的升降运动,真空机械手一次伸出、缩回动作能够实现待加工晶圆、已加工晶圆的交换及搬运,大大提高了晶圆传输效率。
2、本发明顶针机构Ⅱ结构简单、易于实现。
3、本发明的晶圆交换方法能够实现真空机械手一次伸出、缩回动作完成待加工晶圆、已加工晶圆的交换及搬运,大大提高了晶圆传输效率。
附图说明
图1为现有的真空晶圆加工传输系统结构示意图。
图2为现有的真空反应腔顶针系统结构示意图。
图3为本发明晶圆交换装置布设的结构剖视图。
图4为本发明晶圆交换装置布设的结构俯视图。
其中,1-真空反应腔Ⅰ,2-真空门阀,3-真空传输平台,4-真空机械手Ⅰ,5-真空锁,6-大气门阀,7-大气机械手,8-晶圆前端装置,9-装载台,10-晶圆,11-顶针,12-晶圆载台Ⅰ,13-气缸,14-顶针机构Ⅰ,15-顶针机构Ⅱ,16-真空机械手Ⅱ,17-分离型手指,18-直线驱动装置。
具体实施方式
下面结合附图并举实施例,对本发明进行详细描述。
本发明提供了一种用于真空反应腔的晶圆交换装置,包括顶针机构Ⅰ14、顶针机构Ⅱ15、真空机械手Ⅱ16及直线驱动装置18。
如图3所示,顶针机构Ⅰ14、顶针机构Ⅱ15同心设置,顶针机构Ⅰ14设置在真空反应腔Ⅱ内的晶圆载台Ⅱ上,顶针机构Ⅱ15位于晶圆载台Ⅱ外围,待加工晶圆、已加工晶圆分别与顶针机构Ⅰ14、顶针机构Ⅱ15配合,顶针机构Ⅰ14、顶针机构Ⅱ15交替升降,直线驱动装置18用于驱动真空机械手Ⅱ16一次伸出、缩回动作完成待加工晶圆、已加工晶圆的抓取及搬运。
具体地,顶针机构Ⅱ15包括“7”型顶针杆、顶针连杆及真空密封件,三个“7”型顶针杆竖直均布在晶圆载台Ⅱ外围,“7”型顶针杆下端穿过真空反应腔Ⅱ底面,穿设部分与真空反应腔Ⅱ之间设有真空密封件,相邻两个“7”型顶针杆底端通过顶针连杆固连。“7”型顶针杆搭载晶圆下落至晶圆载台Ⅱ上时,“7”型顶针杆上端水平部有一部分与晶圆载台Ⅱ上表面搭接,晶圆载台Ⅱ于搭接处设置凹槽,该凹槽用于容纳部分“7”型顶针杆水平部。
在另一实施例中,顶针机构Ⅱ15也设置在真空反应腔Ⅱ内的晶圆载台Ⅱ上、且顶针机构Ⅱ位于顶针机构Ⅰ外围。
真空机械手Ⅱ16设置在真空锁内,真空机械手Ⅱ16设有分离型手指17呈剪刀手,直线驱动装置18驱动分离型手指17张开用于避让顶针机构Ⅰ14的升降运动。直线驱动装置18设置在分离型手指17的两根手指之间,用于驱动两根手指运动,实现张开或闭合,直线驱动装置18为气缸或电机。如图4所示,展示了分离型手指17张开和闭合的两种状态。
真空反应腔Ⅱ内完成加工后,顶针机构Ⅱ15带动已加工晶圆升起,真空机械手Ⅱ16穿过顶针机构Ⅱ15的相邻两个“7”型顶针杆将待加工晶圆传输到已加工晶圆下方、晶圆载台Ⅱ上方,顶针机构Ⅰ14升起将待加工晶圆顶起脱离真空机械手Ⅱ16;直线驱动装置18驱动分离型手指17张开避让顶针机构Ⅰ14,顶针机构Ⅰ14下降带动待加工晶圆降落在晶圆载台Ⅱ上,真空机械手Ⅱ16闭合(复位),顶针机构Ⅱ15下降将已加工晶圆放置到真空机械手Ⅱ16上,真空机械手Ⅱ16缩回。
综上所述,以上仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (4)
1.一种用于真空反应腔的晶圆交换装置,其特征在于,包括顶针机构Ⅰ、顶针机构Ⅱ、真空机械手及驱动装置;
所述顶针机构Ⅰ、顶针机构Ⅱ同心设置,且所述顶针机构Ⅱ位于顶针机构Ⅰ外围,待加工晶圆、已加工晶圆分别与所述顶针机构Ⅰ、顶针机构Ⅱ配合,所述顶针机构Ⅰ、顶针机构Ⅱ交替竖直升降,所述真空机械手设有分离型手指,所述分离型手指张开用于避让顶针机构Ⅰ的升降运动,所述驱动装置驱动所述真空机械手一次伸出、缩回动作完成待加工晶圆、已加工晶圆的抓取及搬运;
真空反应腔内完成加工后,顶针机构Ⅱ带动已加工晶圆竖直升起,真空机械手将待加工晶圆传输到已加工晶圆下方、晶圆载台上方,顶针机构Ⅰ竖直升起将待加工晶圆顶起脱离真空机械手;所述真空机械手设有分离型手指,分离型手指在驱动装置驱动下张开避让顶针机构Ⅰ,顶针机构Ⅰ带动待加工晶圆降落在晶圆载台上,真空机械手复位,顶针机构Ⅱ下降将已加工晶圆放置到真空机械手上,真空机械手缩回。
2.如权利要求1所述的用于真空反应腔的晶圆交换装置,其特征在于,所述驱动装置为直线驱动,设置在分离型手指之间,采用气缸或电机。
3.如权利要求1或2所述的用于真空反应腔的晶圆交换装置,其特征在于,所述顶针机构Ⅱ位于晶圆载台外围。
4.如权利要求3所述的用于真空反应腔的晶圆交换装置,其特征在于,所述顶针机构Ⅱ包括“7”型顶针杆、顶针连杆及真空密封件,三个“7”型顶针杆竖直均布在晶圆载台外围,“7”型顶针杆下端穿过真空反应腔底面,穿设部分与真空反应腔之间设有真空密封件,相邻两个“7”型顶针杆底端通过顶针连杆固连;“7”型顶针杆搭载晶圆下落至晶圆载台上时,“7”型顶针杆上端水平部有一部分与晶圆载台上表面搭接,晶圆载台于搭接处设置容纳凹槽。
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