Invention Grant
- Patent Title: Leadframe having a conductive layer protruding through a lead recess
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Application No.: US16249612Application Date: 2019-01-16
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Publication No.: US10796984B2Publication Date: 2020-10-06
- Inventor: Rennier Rodriguez , Raymond Albert Narvadez , Ernesto Antilano, Jr.
- Applicant: STMicroelectronics, Inc.
- Applicant Address: PH Calamba
- Assignee: STMICROELECTRONICS, INC.
- Current Assignee: STMICROELECTRONICS, INC.
- Current Assignee Address: PH Calamba
- Agency: Seed Intellectual Property Law Group LLP
- Main IPC: H01L23/495
- IPC: H01L23/495 ; H01L23/31 ; H01L21/48 ; H01L21/56 ; H01L23/00

Abstract:
The present disclosure is directed to a leadframe package having leads with protrusions on an underside of the leadframe. The protrusions come in various shapes and sizes. The protrusions extend from a body of encapsulant around the leadframe to couple to surface contacts on a substrate. The protrusions have a recess that is filled with encapsulant. Additionally, the protrusions may be part of the lead or may be a conductive layer on the lead. In some embodiments a die pad of the leadframe supporting a semiconductor die also has a protrusion on the underside of the leadframe. The protrusion on the die pad has a recess that houses an adhesive and at least part of the semiconductor die. The die pad with a protrusion may include anchor locks at the ends of the die pad to couple to the encapsulant.
Public/Granted literature
- US20190148271A1 LEADFRAME WITH LEAD PROTRUDING FROM THE PACKAGE Public/Granted day:2019-05-16
Information query
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