The semiconductor industry fabricates chipsets, wafers, and printed circuit boards. Moreover, these processes require ultrapure water for cleaning, rinsing, etching, and surface conditioning. As a result, semiconductor manufacturing involves the use of ion-selective electrodes (ISEs) to measure ions in various process controls. For example, monitoring sodium, calcium, and chloride to identify contamination in rinse and process water. Another important application is in measuring fluoride concentration after the etching process.
Critical design features, such as form factor, insertion, and reference junction material, enable AlpHa’s ISEs to be designed for specific application requirements. AlpHa can assist in developing ISEs that require a high level of customization to ensure performance objectives are achieved. AlpHa’s ISE portfolio targets over 20 different ions and is designed for both lab and continuous process environments.
| 离子选择性电极 | 25°C 时的范围 | 技术类型 | 温度温度范围 | 保修 |
| 氨(NH3) | 0.01 - 17,000 ppm(以 NH 计3 | 气体感应 | 0 - 50°C | 12 个月 |
| 铵(NH4+) | 0.1 - 14,000 ppm(以 N 计 | PVC 膜 | 0 - 40°C | 6 个月 |
| 溴化物(Br-) | 0.2 - 79,900 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 镉(Cd2+) | 0.01 - 11,200 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 钙(Ca2+) | 0.5 - 40,100 ppm | PVC 膜 | 0 - 40°C | 6 个月 |
| 二氧化碳(CO2) | 百万分之 4.4 - 440 | 气体感应 | 0 - 50°C | 12 个月 |
| 氯化物(Cl-) | 百万分之 1.8 - 35,000 | 固体颗粒 | 0 - 80°C | 12 个月 |
| 铜(Cu2+) | 0.064 - 6,400 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 氰化物(CN-) | 0.2 - 260 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 氟化物(F-) | 0.02 - 19,000 ppm | 固态晶体 | 0 - 80°C | 12 个月 |
| 氟硼酸盐(BF4-) | 视情况而定 | PVC 膜 | 0 - 40°C | 6 个月 |
| 碘化物(I-) | 0.01 - 127,000 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 铅(Pb2+) | 0.2 - 20,700 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 锂(Li+) | 0.2 - 10,000 ppm | PVC 膜 | 0 - 40°C | 6 个月 |
| 镁(Mg2+) | 0.1 - 30,000 ppm | PVC 膜 | 0 - 40°C | 6 个月 |
| 硝酸盐(NO3-) | 0.1 - 14,000 ppm(以 N 计 | PVC 膜 | 0 - 40°C | 6 个月 |
| 氧化氮(NOx) | 视情况而定 | 气体感应 | 0 - 50°C | 12 个月 |
| 高氯酸盐(ClO4-) | 视情况而定 | PVC 膜 | 0 - 40°C | 6 个月 |
| 钾(K+) | 0.04 - 39,000 ppm | PVC 膜 | 0 - 40°C | 6 个月 |
| 银(Ag+) | 0.01 - 107,900 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 硫化物(S2-) | 0.01 - 32,100 ppm | 固体颗粒 | 0 - 80°C | 12 个月 |
| 钠(Na+) | 0.01 - 100,000 ppm | 传感玻璃 | 0 - 80°C | 12 个月 |
| 表面活性剂(X+ / X-) | 视情况而定 | PVC 膜 | 0 - 40°C | 6 个月 |
| 水硬度(Ca2+ / Mg2+) | 0.5 - 40,000 ppm | PVC 膜 | 0 - 40°C | 6 个月 |