Invention Application
- Patent Title: SEMICONDUCTOR PACKAGE WITH NICKEL-SILVER PRE-PLATED LEADFRAME
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Application No.: US17139985Application Date: 2020-12-31
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Publication No.: US20220208665A1Publication Date: 2022-06-30
- Inventor: Nazila Dadvand , Bernardo Gallegos
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Main IPC: H01L23/495
- IPC: H01L23/495 ; H01L23/31 ; H01L23/00 ; H01L21/48 ; H01L21/56

Abstract:
A semiconductor package includes a pad and leads, the pad and leads including a base metal predominantly including copper, a first plated metal layer predominantly including nickel in contact with the base metal, and a second plated metal layer predominantly including silver in contact with the first plated metal layer. The first plated metal layer has a first plated metal layer thickness of 0.1 to 5 microns, and the second plated metal layer has a second plated metal layer thickness of 0.2 to 5 microns. The semiconductor package further includes an adhesion promotion coating predominantly including silver oxide in contact with the second plated metal layer opposite the first plated metal layer, a semiconductor die mounted on the pad, a wire bond extending between the semiconductor die and a lead of the leads, and a mold compound covering the semiconductor die and the wire bond.
Public/Granted literature
- US11848258B2 Semiconductor package with nickel-silver pre-plated leadframe Public/Granted day:2023-12-19
Information query
IPC分类: