发明申请
- 专利标题: PACKAGING STRUCTURES AND PACKAGING METHODS FOR ULTRASOUND-ON-CHIP DEVICES
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申请号: US16774956申请日: 2020-01-28
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公开(公告)号: US20200239299A1公开(公告)日: 2020-07-30
- 发明人: Jianwei Liu , Keith G. Fife
- 申请人: Butterfly Network, Inc.
- 申请人地址: US CT Guilford
- 专利权人: Butterfly Network, Inc.
- 当前专利权人: Butterfly Network, Inc.
- 当前专利权人地址: US CT Guilford
- 主分类号: B81B7/00
- IPC分类号: B81B7/00 ; B06B1/02 ; B81C1/00
摘要:
A method of forming a multiple layer, hybrid interposer structure includes forming a plurality of first openings through a substrate, the substrate comprising a heat spreading material; forming a first metal material within the plurality of first openings and on top and bottom surfaces of the substrate; patterning the first metal material; forming a dielectric layer over the patterned first metal material; forming a plurality of second openings within the dielectric layer to expose portions of the patterned first metal material on the top and bottom surfaces of the substrate; filling the plurality of second openings with a second metal material, in contact with the exposed portions of the patterned first metal material; forming a third metal material on the top and bottom surfaces of the substrate, the third metal material in contact with the second metal material and the dielectric layer; and patterning the third metal material.
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