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    • 2. 发明公开
    • MEMS DOUBLE-LAYER SUSPENSION MICROSTRUCTURE MANUFACTURING METHOD, AND MEMS INFRARED DETECTOR
    • MEMS双层悬浮微结构制造方法和MEMS红外探测器
    • EP3296254A1
    • 2018-03-21
    • EP16792161.8
    • 2016-05-10
    • CSMC Technologies Fab2 Co., Ltd.
    • JING, Errong
    • B81B7/02B81C1/00
    • B81C1/00182B81B7/02B81B2201/0207B81C1/00B81C1/0015B81C1/00476B81C2201/0108B81C2201/0109B81C2201/0132G01J5/20
    • An MEMS double-layer suspension microstructure manufacturing method, comprising: providing a substrate (100); forming a first dielectric layer (200) on the substrate (100); patterning the first dielectric layer (200) to prepare a first film body (210) and a cantilever beam (220) connected to the first film body (210); forming a sacrificial layer (300) on the first dielectric layer (200); patterning the sacrificial layer (300) located on the first film body (210) to make a recess portioned portion (310) for forming a support structure (420), with the first film body (210) being exposed at the bottom of the recess portioned portion (310); forming a second dielectric layer (400) on the sacrificial layer (300); patterning the second dielectric layer (400) to make the second film body (410) and the support structure (420), with the support structure (420) being connected to the first film body (210) and the second film body (410); and removing part of the substrate under the first film body (210) and removing the sacrificial layer (300) to obtain the MEMS double-layer suspension microstructure. In addition, an MEMS infrared detector is also disclosed.
    • 一种MEMS双层悬浮微结构制造方法,包括:提供衬底(100); 在衬底(100)上形成第一介电层(200); 图案化所述第一介电层(200)以制备连接到所述第一膜体(210)的第一膜体(210)和悬臂梁(220); 在第一介电层(200)上形成牺牲层(300); 图案化位于第一膜体(210)上的牺牲层(300)以形成用于形成支撑结构(420)的凹陷部分(310),其中第一膜体(210)暴露在凹陷的底部 分部分(310); 在牺牲层(300)上形成第二介电层(400); (420)连接到第一膜体(210)和第二膜体(410),图案化第二电介质层(400)以制造第二膜体(410)和支撑结构(420) ; 去除所述第一膜体下方的部分衬底,去除所述牺牲层,得到MEMS双层悬浮微结构。 另外,还公开了一种MEMS红外探测器。