Improving Contact Stability During Wafer Test

Stable contact requires clean probe tips, correct overdrive, accurate planarity, controlled force, and repeatable wafer positioning. Trend data can reveal degradation before it becomes a yield event.

关键考虑因素

• 在加工前确认材料兼容性、设备状况和验收标准。.
• 控制关键参数，并记录每批合格产品或生产批次的可追溯数据。.
• 利用检测和性能结果，区分正常变化与正在发生的工艺问题。.

推荐的方法

从已记录的基础数据开始，并一次性改变一个明确的因素。运行代表性样本，与协议规范进行对比，并验证改进结果是否在不同地点、操作员和物料批次中保持稳定。预防性维护和定期校准应该支持这一过程，而不是弥补不稳定配方的不足。.

结论

Improving Contact Stability During Wafer Test should be managed through clear specifications, controlled trials, and ongoing trend review. This approach improves repeatability, supports faster troubleshooting, and reduces the risk of hidden reliability issues in semiconductor manufacturing.