- Patent Title: Leadframe with pad anchoring members and method of forming the same
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Application No.: US16223582Application Date: 2018-12-18
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Publication No.: US11031350B2Publication Date: 2021-06-08
- Inventor: Jefferson Talledo
- Applicant: STMICROELECTRONICS, INC.
- Applicant Address: PH Calamba
- Assignee: STMICROELECTRONICS, INC.
- Current Assignee: STMICROELECTRONICS, INC.
- Current Assignee Address: PH Calamba
- Agency: Seed IP Law Group LLP
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L23/31 ; H01L23/495 ; H01L21/56 ; H01L21/48

Abstract:
A leadframe having extensions around an outer edge of a die pad are disclosed. More specifically, leadframes are created with a flange formed at the outer edge of the die pad and extending away from the die pad. The flange is bent, such that it is positioned at an angle with respect to the die pad. Leadframes are also created with anchoring posts formed adjacent the outer edge of the die pad and extending away from the die pad. The anchoring posts have a central thickness that is less than a thickness of first and second portions opposite the central portion. When the leadframe is incorporated into a package, molding compound completely surrounds each flange or anchoring post, which increases the bond strength between the leadframe and the molding compound due to increased contact area. The net result is a reduced possibility of delamination at edges of the die pad.
Public/Granted literature
- US20190198454A1 LEADFRAME WITH PAD ANCHORING MEMBERS AND METHOD OF FORMING THE SAME Public/Granted day:2019-06-27
Information query
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