Invention Grant
- Patent Title: Leadless semiconductor packages, leadframes therefor, and methods of making
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Application No.: US15415504Application Date: 2017-01-25
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Publication No.: US10199311B2Publication Date: 2019-02-05
- Inventor: Darrell D. Truhitte , Soon Wei Wang , Chee Hiong Chew
- Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Applicant Address: US AZ Phoenix
- Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee Address: US AZ Phoenix
- Agency: IPTechLaw
- Main IPC: H01L21/48
- IPC: H01L21/48 ; H01L23/495 ; H01L21/56 ; H01L23/00 ; H01L23/31

Abstract:
A leadframe includes a frame, a die pad, a contact including a flank adjacent to the frame, a first tie bar between the frame and die pad, and a second tie bar between the die pad and contact. The leadframe is disposed over a carrier. A semiconductor die is disposed over the die pad. An encapsulant is deposited over the leadframe and semiconductor die including between the carrier and half-etched portions of the leadframe. A first trench is formed in the encapsulant to remove a portion of the frame and expose the flank of the contact. A conductive layer is formed over the flank by electroplating. A second trench is formed in the encapsulant through the second tie bar after forming the conductive layer.
Public/Granted literature
- US20170133302A1 LEADLESS SEMICONDUCTOR PACKAGES, LEADFRAMES THEREFOR, AND METHODS OF MAKING Public/Granted day:2017-05-11
Information query
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