公开(公告)号：US20170036905A1

公开(公告)日：2017-02-09

申请号：US15295997

申请日：2016-10-17

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Li-Che Chen ,  Te-Yuan Wu ,  Chia-Huei Lin ,  Hui-Min Wu ,  Kun-Che Hsieh ,  Kuan-Yu Wang ,  Chung-Yi Chiu

IPC: B81B3/00 ,  B81C1/00

CPC classification number: B81B3/0075 ,  B81B2207/07 ,  B81C1/00246 ,  B81C1/00801 ,  B81C2201/014 ,  B81C2203/0714 ,  B81C2203/0735

Abstract: A MEMS structure includes a substrate, an inter-dielectric layer on a front side of the substrate, a MEMS component on the inter-dielectric layer, and a chamber disposed within the inter-dielectric layer and through the substrate. The chamber has an opening at a backside of the substrate. An etch stop layer is disposed within the inter-dielectric layer. The chamber has a ceiling opposite to the opening and a sidewall joining the ceiling. The sidewall includes a portion of the etch stop layer.

Abstract translation: MEMS结构包括衬底，在衬底的前侧上的介电层，介电层之间的MEMS组件，以及设置在介质间介质层内并通过衬底的室。 该腔室在衬底的背面具有开口。 蚀刻停止层设置在介电层内。 该室具有与开口相对的天花板和连接天花板的侧壁。 侧壁包括蚀刻停止层的一部分。

公开(公告)号：US09499399B2

公开(公告)日：2016-11-22

申请号：US13917655

申请日：2013-06-14

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Li-Che Chen ,  Te-Yuan Wu ,  Chia-Huei Lin ,  Hui-Min Wu ,  Kun-Che Hsieh ,  Kuan-Yu Wang ,  Chung-Yi Chiu

IPC: B81C1/00 ,  H01L21/302 ,  H01L21/461

CPC classification number: B81B3/0075 ,  B81B2207/07 ,  B81C1/00246 ,  B81C1/00801 ,  B81C2201/014 ,  B81C2203/0714 ,  B81C2203/0735

Abstract: A method of forming a MEMS structure, in which an etch stop layer is formed to be buried within the inter-dielectric layer and, during an etch of the substrate and the inter-dielectric layer from backside to form a chamber, the etch stop layer protect the remaining inter-dielectric layer. The chamber thus formed has an opening at a backside of the substrate, a ceiling opposite to the opening, and a sidewall joining the ceiling. The sidewall may further include a portion of the etch stop layer.

Abstract translation: 一种形成MEMS结构的方法，其中形成蚀刻停止层以埋入介电层内，并且在从背面蚀刻基板和介电层之间形成室时，蚀刻停止层 保护剩余的介电层。 如此形成的室在基板的背面具有开口，与开口相对的天花板和连接天花板的侧壁。 侧壁还可包括蚀刻停止层的一部分。

公开(公告)号：US20140367805A1

公开(公告)日：2014-12-18

申请号：US13917655

申请日：2013-06-14

Applicant: United Microelectronics Corp.

Inventor： Li-Che Chen ,  Te-Yuan Wu ,  Chia-Huei Lin ,  Hui-Min Wu ,  Kun-Che Hsieh ,  Kuan-Yu Wang ,  Chung-Yi Chiu

IPC: B81C1/00

CPC classification number: B81B3/0075 ,  B81B2207/07 ,  B81C1/00246 ,  B81C1/00801 ,  B81C2201/014 ,  B81C2203/0714 ,  B81C2203/0735

Abstract: A method of forming a MEMS structure, in which an etch stop layer is formed to be buried within the inter-dielectric layer and, during an etch of the substrate and the inter-dielectric layer from backside to form a chamber, the etch stop layer protect the remaining inter-dielectric layer. The chamber thus formed has an opening at a backside of the substrate, a ceiling opposite to the opening, and a sidewall joining the ceiling. The sidewall may further include a portion of the etch stop layer.

Abstract translation: 一种形成MEMS结构的方法，其中形成蚀刻停止层以埋入介电层内，并且在从背面蚀刻基板和介电层之间形成室时，蚀刻停止层 保护剩余的介电层。 如此形成的室在基板的背面具有开口，与开口相对的天花板和连接天花板的侧壁。 侧壁还可包括蚀刻停止层的一部分。

公开(公告)号：US10927000B2

公开(公告)日：2021-02-23

申请号：US15295997

申请日：2016-10-17

Applicant: UNITED MICROELECTRONICS CORP.

Inventor： Li-Che Chen ,  Te-Yuan Wu ,  Chia-Huei Lin ,  Hui-Min Wu ,  Kun-Che Hsieh ,  Kuan-Yu Wang ,  Chung-Yi Chiu

IPC: B81B3/00 ,  B81C1/00

Abstract: A MEMS structure includes a substrate, an inter-dielectric layer on a front side of the substrate, a MEMS component on the inter-dielectric layer, and a chamber disposed within the inter-dielectric layer and through the substrate. The chamber has an opening at a backside of the substrate. An etch stop layer is disposed within the inter-dielectric layer. The chamber has a ceiling opposite to the opening and a sidewall joining the ceiling. The sidewall includes a portion of the etch stop layer.