Invention Grant
- Patent Title: Modified leadframe design with adhesive overflow recesses
-
Application No.: US17185742Application Date: 2021-02-25
-
Publication No.: US11552007B2Publication Date: 2023-01-10
- Inventor: Rennier Rodriguez , Aiza Marie Agudon , Jefferson Talledo , Moonlord Manalo , Ela Mia Cadag , Rammil Seguido
- 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

Abstract:
The present disclosure is directed to a leadframe having a recess in a body of the leadframe to collect glue overflowing from the manufacturing process of coupling a semiconductor die to the leadframe. The recess extends beneath an edge of the semiconductor die so that any tendency of the glue to adhere to the semiconductor die is counteracted by a tendency of the glue to adhere to a wall of the recess and at least partially fill the volume of the recess. In addition, the recess for collecting adhesive may also form a mold lock on an edge of the leadframe, the mold lock providing a more durable connection between the leadframe and an encapsulant during physical and temperature stresses.
Public/Granted literature
- US20210183750A1 MODIFIED LEADFRAME DESIGN WITH ADHESIVE OVERFLOW RECESSES Public/Granted day:2021-06-17
Information query
IPC分类: