一种多功能的TSCPAK引线框架

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By optimizing the mold structure of the TSCPAK lead frame, the problems of long development cycles and high costs of lead frames for different power modules have been solved, enabling multiple products to share a single mold, thereby improving production efficiency and product stability.

CN224521654UActive Publication Date: 2026-07-17JIEXIN SEMICONDUCTOR MATERIALS (ZHUHAI) CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: JIEXIN SEMICONDUCTOR MATERIALS (ZHUHAI) CO LTD
Filing Date: 2025-06-30
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

During the TSCPAK packaging process, developing lead frames for different power modules requires multiple molds, resulting in long development cycles, high costs, and long mold changeover cycles, which affects production efficiency.

Method used

A multifunctional TSCPAK lead frame is designed, with positioning areas on the upper and lower sides of the frame base, small units arranged longitudinally and transversely in the middle, inner and outer feet connected by connecting ribs, and pressure edges designed around the base island. Copper alloy material is used, positioning holes and injection molding channels are added, and the mold structure is optimized to meet the needs of different power modules.

Benefits of technology

By using a single mold to accommodate multiple products, upfront mold development costs are reduced, production efficiency and product sealing stability are improved, and the production process is simplified.

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Abstract

本实用新型公开一种多功能的TSCPAK引线框架，包括框架基体，框架基体上下两侧设有多个规律排布的定位区，框架基体的中间部分纵横排列着若干个小单元，框架基体上包括与小单元交错排列的若干个注塑流道和切断一字孔，小单元包括内脚和外脚，小单元的内外脚以封装线作为区别，内外脚之间通过连接筋相连，小单元的基岛四周做压边设计，两侧的中间设计有用于固定基岛的Tibar。本新型通过更换不同的冲压配件，实现引脚与基岛根据所需产品的不同而改变，以适配不同功率模块的生产需求，基岛背面增加压边和引脚增加锁孔，可以有效的保证产品塑封的稳定性，多款共用一款引线框架模具，能够有效的节省开发模具成本，提高生产的效率。

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Claims

1. A multi-functional TSCPAK lead frame, characterized by, include: The frame base has multiple regularly arranged positioning areas on its upper and lower sides, and several small units are arranged longitudinally and transversely in the middle part of the frame base. The frame base is provided with several injection molding channels and cutting holes arranged alternately with the small units. The small units include inner leads and outer leads, which are distinguished by the encapsulation line. The inner and outer feet are connected by connecting ribs. The base island of the small unit is designed with a pressing edge around its perimeter, and a Tibar is designed in the middle of both sides for fixing the base island.

2. The multi-functional TSCPAK lead frame of claim 1, wherein, The frame base is a cuboid with a length of 281.6 mm, a width of 83 mm, and a thickness of 0.203 mm.

3. A multifunctional TSCPAK lead frame as described in claim 1, characterized in that, The small units in the middle of the frame base are arranged in a crisscross pattern.

4. The multi-functional TSCPAK lead frame of claim 2, wherein, The small units are arranged in a regular pattern along the X and Y directions.

5. The multi-functional TSCPAK lead frame of claim 1 wherein, Between two adjacent columns of the small units, there is a column of injection molding channels and cutting channels arranged alternately. The injection molding channels are composed of elliptical holes, and the cutting channels are composed of straight holes.

6. The multi-functional TSCPAK lead frame of claim 2 wherein, The small unit base island has recessed platforms on its back sides.