The external adjustment probe station is a type of semiconductor testing equipment, mainly used for electrical performance testing of chips. Its working principle is to place probes on the chip and conduct electrical performance tests on the chip. It places the test probes on the test points on the chip surface, then uses a signal source to apply a certain voltage or frequency signal to the chip, and then uses instruments such as oscilloscopes to detect the output electrical signal of the chip, thereby determining the electrical parameters and performance of the chip.

One of the core technologies is its probe adjustment system. This system allows operators to accurately adjust the position and pressure of the probes without touching the chip, ensuring good contact between the probes and the chip, thereby obtaining accurate test results. In addition, it is also equipped with a high-precision positioning system, which can accurately position the probes at any test point on the chip, greatly improving the efficiency and accuracy of testing.

Another technical advantage is its flexibility. Because the probes of the probe station can be adjusted independently, it can adapt to chips of various sizes and shapes, as well as different testing requirements. This enables the probe station to complete multiple different testing tasks within one testing cycle, greatly improving production efficiency.

In addition, it also has high expandability. It can be easily connected to other testing equipment, such as automatic optical inspection (AOI) and X-ray inspection equipment, to achieve more comprehensive testing and fault analysis. This expandability not only improves testing efficiency but also enhances the accuracy of fault diagnosis.

Its principles and technical advantages make it an important tool in the semiconductor manufacturing and testing industry. Its high precision, high efficiency, and high flexibility enable it to greatly improve production efficiency while ensuring product quality.

The following are some main applications of external adjustment probe stations in semiconductor inspection:

1. Wafer Testing: In the semiconductor manufacturing process, after a wafer undergoes a series of processing steps, electrical testing needs to be conducted using an external adjustment probe station to ensure that the function and performance of each chip meet the design requirements. This testing is usually carried out at the wafer level, that is, before the chip is packaged.

2. Chip Screening: It can be used to screen large batches of chips and quickly identify chips that do not meet specifications. This is of great significance for improving production efficiency and reducing waste products.

3. Fault Analysis: In the chip development stage, if there is a performance problem or fault in the chip, it can be used to locate the specific cause of the problem. It can test each lead of the chip individually to help engineers locate specific circuit problems.

4. R&D Testing: In the chip R&D stage, engineers need to conduct various electrical performance tests on newly designed chips. It can provide flexible testing solutions and support different testing requirements, thereby accelerating the R&D process.

5. Quality Control: It is used for quality control of chips in the production process. By sampling and testing each batch of products, the quality and consistency of the products are ensured.