Leadframe, package with die cut leads and saw cut sides, and corresponding methods
By using leadframe sawing and punching techniques, combined with molding compound materials, the problems of complexity and high cost in existing packaging technologies have been solved, achieving efficient and stable package manufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INFINEON TECHNOLOGIES AG
- Filing Date
- 2021-01-15
- Publication Date
- 2026-06-16
AI Technical Summary
Existing packaging technologies struggle to effectively reduce processing complexity and cost while maintaining high device reliability.
By employing leadframe manufacturing processes, combined with sawing and punching techniques, sawing textures are formed on the sides of the encapsulation through sawing, and specific structures are formed on the punched surface. Combined with molding compound materials, this enables efficient encapsulation manufacturing.
It enables efficient package manufacturing, reduces processing complexity and resource utilization, and improves the mechanical stability of the package and simplifies electrical connections.
Smart Images

Figure CN122228005A_ABST