-
1.
公开(公告)号:US20190088495A1
公开(公告)日:2019-03-21
申请号:US16044479
申请日:2018-07-24
IPC分类号: H01L21/306 , H01L21/67 , H01L29/20 , H01L21/02
CPC分类号: H01L21/30612 , H01L21/02389 , H01L21/02458 , H01L21/0254 , H01L21/02664 , H01L21/30635 , H01L21/67075 , H01L21/67086 , H01L21/78 , H01L21/7813 , H01L29/2003 , H01L31/02363 , H01L33/0075 , H01L33/22
摘要: Methods and systems for forming a device structure free of a substrate are described. Exemplary embodiments include a device structure comprising of device layers, a release layer, an etch stop layer, and a substrate. The device structure is exposed to photoenhanced wet etch environments to vertically and laterally etch the release layer to separate the device layers from the substrate. The device structure can include a contact layer, an etch stop layer, or both in some embodiments.
-
公开(公告)号:US10522363B2
公开(公告)日:2019-12-31
申请号:US16044479
申请日:2018-07-24
IPC分类号: H01L21/306 , H01L21/78 , H01L21/3063 , H01L33/00 , H01L21/02 , H01L31/0236 , H01L21/67 , H01L29/20 , H01L33/22
摘要: Methods and systems for forming a device structure free of a substrate are described. Exemplary embodiments include a device structure comprising of device layers, a release layer, an etch stop layer, and a substrate. The device structure is exposed to photoenhanced wet etch environments to vertically and laterally etch the release layer to separate the device layers from the substrate. The device structure can include a contact layer, an etch stop layer, or both in some embodiments.
-
3.
公开(公告)号:US20180294372A1
公开(公告)日:2018-10-11
申请号:US15947683
申请日:2018-04-06
IPC分类号: H01L31/0463 , H01L31/05 , H01L31/048
摘要: Systems and methods taught herein provide thin film semiconductor devices such as thin film photovoltaic devices having via holes that enable electrical connection with a bottom surface of a topside contact of the thin film semiconductor device via the back side of the device (e.g., during mounting of the device). In some embodiments, the via holes are electrically insulated.
-
-