集成式晶圆进仓前预处理设备

The integrated pre-processing equipment for wafers entering the warehouse with a three-layer vertical structure enables simultaneous linkage between dust removal and defect detection, solving the problems of low equipment space utilization and poor detection accuracy in existing technologies, and improving the processing yield and equipment adaptability.

CN122003115BActive Publication Date: 2026-07-17WUXI SHANGJI SEMICON TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI SHANGJI SEMICON TECH CO LTD
Filing Date
2026-04-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The lack of integrated pre-processing equipment for wafers before they enter the warehouse in the current technology leads to the decentralized operation of dust removal and defect detection, which is inefficient and has low equipment space utilization, affecting the accuracy of detection and the yield of processed products.

Method used

The integrated wafer pre-processing equipment adopts a three-layer vertical structure. The dust removal mechanism is located on the upper layer, the defect detection device is located on the middle layer, and the conveying mechanism is located on the lower layer. Non-direct imaging is achieved through the cooperation of mirrors and cameras. Dust removal is carried out simultaneously during the conveying process. Multiple sets of nozzles and a negative pressure system are used to ensure the cleanliness of the wafer surface.

Benefits of technology

Significantly reduces equipment footprint, increases integration, improves defect detection accuracy and yield, and ensures processing precision in subsequent processes.

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Abstract

本申请公开了一种集成式晶圆进仓前预处理设备,包括机架、除尘机构、缺陷检测装置和传送机构,机架内自上而下设有上层、中层和下层;通过将除尘机构、缺陷检测装置、传送机构分设于上、中、下层,替代传统的平面式或散落式布置,大幅缩减了设备的水平与竖直占用空间、提升了设备的集成度;同时,缺陷检测装置采用反射镜配合相机的反射式成像系统,无需相机正对晶圆布设,进一步优化了空间利用率;此外,利用上层朝下设置的除尘机构,可在传送机构接取并转移晶圆的过程中同步吹扫晶圆表面的粉尘与杂质,实现了转运与清洁联动作业;通过防止晶圆携带污染物进入后道加工设备,还能保障后续工艺的加工精度、提高晶圆的加工良率。
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