专业词入口Topic Entry

PECVD 薄膜沉积，先确认膜种、温度预算和验收指标。PECVD starts with the film, thermal budget and acceptance metrics.

PECVD 常用于较低温度下沉积 SiO₂、SiNx 等介质膜、钝化膜或掩膜层。可行性与结果不仅取决于膜名，还与设备配方、基底材料、表面状态、样品尺寸、膜应力和后续刻蚀有关。PECVD is often used for lower-temperature dielectric and passivation films, with results driven by the recipe, substrate, surface, stress and downstream etch.

01

适合什么需求Good For

SiO₂、SiNx 等介质膜，器件钝化、绝缘层、硬掩膜、光学或微流控结构的表面功能层，以及需要控制热预算的样品。Dielectrics, passivation, insulation, hard masks and functional films with a controlled thermal budget.

02

需要准备什么Prepare First

目标膜种与膜厚、基底和已有膜层、样品尺寸与数量、最高允许温度、目标折射率或应力、后续光刻刻蚀和清洗条件。Film, thickness, substrate stack, size, quantity, thermal limit, optical or stress target and downstream steps.

03

常见风险Common Risks

膜应力导致翘曲或开裂，颗粒与针孔，片内均匀性不足，台阶覆盖有限，膜质与折射率偏差，以及聚合物或金属层的温度兼容问题。Stress, cracking, particles, pinholes, non-uniformity, limited step coverage and thermal incompatibility.

推荐下一步Next Step

把“沉积一层介质膜”转换成膜厚、温度、应力和用途四组条件。Translate the dielectric-film request into thickness, temperature, stress and function.

请提交完整材料栈、目标膜厚与容差、最高温度、样品尺寸、膜层用途及验收方法。微纳Hub 会先比较 PECVD、LPCVD、ALD、溅射等路线，并核对膜厚、折射率、应力、均匀性或后续刻蚀的验收点。Share the stack, thickness tolerance, temperature limit, sample size, film function and acceptance method so PECVD can be compared with LPCVD, ALD or sputtering.

提交 PECVD 沉积需求Submit PECVD request查看镀膜工艺导航Open film route