WO2020253653A1 - 微led器件的巨量转移方法及其巨量转移设备 - Google Patents
微led器件的巨量转移方法及其巨量转移设备 Download PDFInfo
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Abstract
Description
Claims (14)
- 一种微LED器件的巨量转移方法,其中,包括:在磊晶基板具有微LED器件的表面涂布柔性覆盖溶液,对所述柔性覆盖溶液固化后形成包覆所述微LED器件的柔性覆盖层;翻转具有包覆所述微LED器件的柔性覆盖层的磊晶基板,使所述磊晶基板位于所述柔性覆盖层的上侧;分离所述磊晶基板和所述微LED器件,使所述柔性覆盖层作为所述微LED器件的载体;将接收基板与所述柔性覆盖层具有所述微LED器件的表面进行对接;翻转对接所述微LED器件的接收基板,使所述柔性覆盖层位于所述接收基板的上侧;分离所述柔性覆盖层和所述微LED器件,使所述接收基板作为所述微LED器件的载体。
- 根据权利要求1所述的巨量转移方法,其中,在磊晶基板具有微LED器件的表面形成涂布柔性覆盖溶液,具体包括:在所述磊晶基板具有微LED器件的表面喷涂柔性覆盖溶液。
- 根据权利要求1所述的巨量转移方法,其中,所述柔性覆盖溶液包含主剂和催化剂,所述主剂包括聚二甲基硅氧烷、聚氨酯丙烯酸或聚甲基丙烯酸甲酯。
- 根据权利要求1所述的巨量转移方法,其中,所述柔性覆盖层的厚度为0.5mm~1mm。
- 根据权利要求1所述的巨量转移方法,其中,在分离所述柔性覆盖层和所述微LED器件之前,还包括:采用设定温度加热所述柔性覆盖层设定时长。
- 根据权利要求5所述的巨量转移方法,其中,所述柔性覆盖层的加热温度高于所述柔性覆盖溶液的固化温度,所述柔性覆盖层的加热时长大于所 述柔性覆盖溶液的固化时长。
- 根据权利要求6所述的巨量转移方法,其中,所述柔性覆盖溶液的固化温范围为60℃~100℃,固化时长范围为10分钟~35分钟;所述柔性覆盖层的加热温度范围为120℃~140℃,加热时长范围为30分钟~40分钟。
- 根据权利要求1所述的巨量转移方法,其中,所述微LED器件与所述磊晶基板之间具有牺牲层;分离所述磊晶基板和所述微LED器件,具体包括:采用激光照射所述牺牲层,使所述微LED器件从所述磊晶基板剥离。
- 根据权利要求1所述的巨量转移方法,其中,所述柔性覆盖层具有第一对位标记,所述接收基板具有第二对位标记和键合层;将接收基板与所述柔性覆盖层具有所述微LED器件的表面进行对接,具体包括:通过所述第一对位标记和所述第二对位标记,将所述接收基板与所述柔性覆盖层具有所述微LED器件的表面进行对位贴合;通过所述键合层,将所述接收基板与所述微LED器件键合。
- 根据权利要求1所述的巨量转移方法,其中,翻转具有包覆所述微LED器件的柔性覆盖层的磊晶基板的翻转角度为175°至185°;翻转对接所述微LED器件的接收基板的翻转角度为175°至185°。
- 一种微LED器件的巨量转移设备,其中,包括:涂布设备,被配置为在磊晶基板具有微LED器件的表面涂布柔性覆盖溶液;固化设备,被配置为对所述柔性覆盖溶液固化后形成包覆所述微LED器件的柔性覆盖层;翻转设备,被配置为翻转具有包覆所述微LED器件的柔性覆盖层的磊晶基板,使所述磊晶基板位于所述柔性覆盖层的上侧,分离所述磊晶基板和所述微LED器件,使所述柔性覆盖层作为所述微LED器件的载体,将接收基板与所述柔性覆盖层具有所述微LED器件的表面进行对接,翻转对接所述微 LED器件的接收基板,使所述柔性覆盖层位于所述接收基板的上侧;分离设备,被配置为分离所述柔性覆盖层和所述微LED器件,使所述接收基板作为所述微LED器件的载体。
- 根据权利要求11所述的巨量转移设备,其中,所述涂布设备内置有喷头,被配置为在所述磊晶基板具有微LED器件的表面喷涂柔性覆盖溶液。
- 根据权利要求11所述的巨量转移设备,其中,所述翻转设备内置有激光器,被配置为分离所述磊晶基板和所述微LED器件,使所述柔性覆盖层作为所述微LED器件的载体。
- 根据权利要求11所述的巨量转移设备,其中,所述分离设备,还被配置为对承载所述微LED器件的接收基板进行清洗。
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CN106384711A (zh) * | 2016-10-19 | 2017-02-08 | 成都海威华芯科技有限公司 | 一种GaN功率半导体器件的衬底转移方法 |
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