Semiconductor lead frame mold facilitating demolding

By employing a snap-fit ​​structure of snap-fit ​​sleeves and snap-fit ​​posts in the semiconductor lead frame mold, the automatic demolding of the lead frame is achieved using the power of the upper mold base. This solves the problems of complex existing mold structures and high energy consumption, and achieves a simplified and energy-saving demolding effect.

CN224389832UActive Publication Date: 2026-06-23WUXI JIATAI PRECISION MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI JIATAI PRECISION MOULD CO LTD
Filing Date
2025-07-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing semiconductor lead frame molds require additional drive structures for ejection operations, resulting in complex structures and high energy consumption.

Method used

The system employs a snap-fit ​​structure with snap-fit ​​sleeves and snap-fit ​​pins. The upper mold base is used to make the lifting plate rise synchronously, and the ejector pins lift the lead wire frame to achieve demolding, reducing the reliance on additional driving force.

Benefits of technology

The mold structure was simplified, energy consumption was reduced, and a convenient demolding process was achieved.

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    Figure CN224389832U_ABST
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Abstract

The utility model provides a kind of semiconductor lead frame mould convenient to demould, belong to lead frame mould technical field, including lower die seat and upper die seat, the lower die seat is located below upper die seat;Cavity is opened in the inside of the lower die seat;Lower butt joint component is located in the inside of the cavity;Fixed in the guide column of the upper die seat bottom;Upper butt joint component is located in the guide column bottom;Wherein, the lower butt joint component includes: lift plate sliding in the inside wall of the cavity;Spring one is fixed between the bottom of the lift plate and the inside bottom of cavity;The utility model can use the power of the upper die seat to move upwards to make lift plate synchronous rising after the butt joint of clamping sleeve and clamping column is engaged, and then make demoulding ejector pin can eject lead frame in lead frame forming cavity, realize lead frame demoulding, without providing additional driving force for demoulding ejector pin, reduce the complexity of mould, reduce the consumption of energy.
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