- 专利标题: Methods for printing a conductive pillar with high precision
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申请号: US17929114申请日: 2022-09-01
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公开(公告)号: US12089343B2公开(公告)日: 2024-09-10
- 发明人: Michael Zenou , Stéphane Etienne
- 申请人: Reophotonics, Ltd.
- 申请人地址: IL Modiin
- 专利权人: REOPHOTONICS, LTD.
- 当前专利权人: REOPHOTONICS, LTD.
- 当前专利权人地址: IL Modiin
- 代理机构: Ascenda Law Group, PC
- 主分类号: H05K3/12
- IPC分类号: H05K3/12 ; B41M5/00 ; C23C14/28 ; C23C14/58
摘要:
Methods for creating a conductive pillar on a receiver substrate may include forming a dried metal paste pillar by printing metal paste over an area of a receiver substrate, drying the metal paste, and repeating the printing and drying steps. The dried metal paste pillar may be inspected so as to determine a height of the dried metal paste pillar. If the height of the dried metal paste pillar is less than a desired height, additional metal paste may be printed onto to the dried metal paste pillar and dried. If the height of the dried metal paste pillar exceeds the desired height, a portion of the dried metal paste pillar may be ablated. The dried metal paste pillar may be sintered so as to form the conductive pillar. Conductive pillars that are produced according to the methods may be used as part of the formation of a flip-chip assembly.
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