Invention Grant
- Patent Title: 3DI solder cup
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Application No.: US17201874Application Date: 2021-03-15
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Publication No.: US11532578B2Publication Date: 2022-12-20
- Inventor: Kyle K. Kirby
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Perkins Coie LLP
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L25/065 ; H01L25/00

Abstract:
A substrate or semiconductor device, semiconductor device assembly, and method of forming a semiconductor device assembly that includes a barrier on a solder cup. The semiconductor device assembly includes a substrate disposed over another substrate. At least one solder cup extends from one substrate towards an under bump metal (UBM) on the other substrate. The barrier on the exterior of the solder cup may be a standoff to control a bond line between the substrates. The barrier may reduce solder bridging during the formation of a semiconductor device assembly. The barrier may help to align the solder cup with a UBM when forming a semiconductor device assembly and may reduce misalignment due to lateral movement of substrates and/or semiconductor devices.
Public/Granted literature
- US20210202411A1 3DI Solder Cup Public/Granted day:2021-07-01
Information query
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