Invention Grant
- Patent Title: Multirow gull-wing package for microelectronic devices
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Application No.: US16225182Application Date: 2018-12-19
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Publication No.: US11335570B2Publication Date: 2022-05-17
- Inventor: Sreenivasan K Koduri
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Dawn Jos; Charles A. Brill; Frank D. Cimino
- Main IPC: H01L23/498
- IPC: H01L23/498 ; H01L23/495 ; H01L21/48 ; H01L23/31 ; H01L21/56 ; H01L23/00

Abstract:
A microelectronic device, in a multirow gull-wing chip scale package, has a die connected to intermediate pads by wire bonds. The intermediate pads are free of photolithographically-defined structures. An encapsulation material at least partially surrounds the die and the wire bonds, and contacts the intermediate pads. Inner gull-wing leads and outer gull-wing leads, located outside of the encapsulation material, are attached to the intermediate pads. The gull-wing leads have external attachment surfaces opposite from the intermediate pads. The external attachment surfaces of the outer gull-wing leads are located outside of the external attachment surfaces of the inner gull-wing leads. The microelectronic device is formed by mounting the die on a carrier, forming the intermediate pads without using a photolithographic process, and forming the wire bonds. The encapsulation material is formed, and the carrier is subsequently removed, exposing the intermediate pads. The gull-wing leads are formed on the intermediate pads.
Information query
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