CNC machine tool processing path optimization method for batch processing of ion implanter consumables

By optimizing the CNC machine tool machining path, generating smooth toolpaths and outputting interpolation command streams, the problems of micro-chipping and particle contamination of consumables were solved, improving the yield and consistency of semiconductor processing.

CN122411285APending Publication Date: 2026-07-17
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-06-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In semiconductor ion implantation equipment, existing CNC machine tool processing paths cannot effectively avoid microscopic damage to consumables in weak areas, leading to micro-edge chipping and particle contamination, which affects the yield of doped wafers.

Method used

By acquiring the initial toolpath and dynamic constraints, particle sensitivity and servo impact risk are extracted, a smooth transition segment is generated, the machining path is optimized to eliminate servo impact risks, a smooth toolpath is generated, and an interpolation command stream is output.

Benefits of technology

It can accurately locate and eliminate micro-chipping and particle release in the batch processing of identical parts, reduce the risk of wafer contamination, and improve processing consistency and yield.

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Abstract

本发明涉及智能工业控制技术领域,公开了离子注入机耗材批量加工用CNC机床加工路径优化方法,包括:采集初始刀轨、动态约束限及插补周期,提取刀位增量与归一增量;推导局部曲率及反映微崩边敏感度的颗粒敏感度;将动态约束限向弧长映射得到综合速度限;结合插补周期提取相位锁定度,融合评估出表征污染隐患的颗粒风险值;据此生成平滑过渡段替换原始折点形成平滑刀轨;在平滑刀轨上执行前瞻调度获取插补状态流,最终生成多轴插补指令流以驱动机床。本发明能够有效抑制高纯耗材在批量制造中因局部切削冲击反复发作而产生的微粉剥落,降低离子注入应用场景下的颗粒污染风险,保障加工品质。
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