Invention Grant
- Patent Title: Self-aligned under bump metal
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Application No.: US15454230Application Date: 2017-03-09
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Publication No.: US09865555B2Publication Date: 2018-01-09
- Inventor: Manoj K. Jain
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Jacqueline J. Garner; Charles A. Brill; Frank D. Cimino
- Main IPC: H01L23/52
- IPC: H01L23/52 ; H01L23/00 ; H01L23/528

Abstract:
An integrated circuit including a self-aligned under bump metal pad formed on a top metal interconnect level in a connection opening in a dielectric layer, with a solder ball formed on the self-aligned under bump metal pad. Processes of forming integrated circuits including a self-aligned under bump metal pad formed on a top metal interconnect level in a connection opening in a dielectric layer, by a process of forming one or more metal layers on the interconnect level and the dielectric layer, selectively removing the metal from over the dielectric layer, and subsequently forming a solder ball on the self-aligned under bump metal pad. Some examples include additional metal layers formed after the selective removal process, and may include an additional selective removal process on the additional metal layers.
Public/Granted literature
- US20170179053A1 SELF-ALIGNED UNDER BUMP METAL Public/Granted day:2017-06-22
Information query
IPC分类: