一种氧化镓晶圆片的倒角装置及方法

A chamfering device and method for gallium oxide wafers using flexible grinding wheels and optimized grinding processes has solved the problem of cleavage and delamination during the chamfering process, improving product quality, reducing production costs, and expanding high-end applications.

CN119141375BActive Publication Date: 2026-07-17HANGZHOU GAREN SEMICON CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU GAREN SEMICON CO LTD
Filing Date
2024-09-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional chamfering processes cannot effectively handle the anisotropy of gallium oxide wafers, resulting in uneven grinding, easy cleavage delamination and chipping, and product scrap.

Method used

Utilizing flexible grinding wheel materials and optimized grinding processes, combined with vacuum adsorption, arc-shaped groove design, and pressure-controlled feed, grinding is performed by spraying grinding fluid to avoid cleavage and delamination caused by excessive mechanical force. Spherical ultrafine powder materials are used as abrasives.

Benefits of technology

It effectively reduces the risk of cleavage and delamination during the chamfering process of gallium oxide wafers, improves geometric accuracy and product quality, reduces production costs, and expands high-end application areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种氧化镓晶圆片的倒角装置及方法,涉及氧化镓晶圆片加工技术领域,装置包括驱动机构、倒角磨削机构和喷液嘴;倒角磨削机构包括由上至下依次设置的砂轮、浮动台、压缩弹簧和底座,砂轮的底端与浮动台固连,压缩弹簧的顶端与浮动台抵接,压缩弹簧的底端与底座抵接;砂轮的顶面设置有一凹陷状的弧面,弧面上设置有一沿弧面的弧长方向分布的弧形凹槽,弧形凹槽的横截面呈倒梯形;弧形凹槽位于真空吸盘吸附的氧化镓晶圆片的正下方。方法:使得需要倒角的氧化镓晶圆片的边缘与弧形凹槽抵接的同时,通过驱动电机驱动需要倒角的氧化镓晶圆片以30rpm‑100rpm的转速转动。能够有效避免氧化镓晶圆片在倒角过程中报废。
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