What Does Pilot Run Mean In Wafer Manufacturing?

From a technical point of view,Pilot Run refers to a series of small -scale production operations carried out before the development of new process platforms or new products, which is used to verify and optimize process flow, equipment performance, material selection, design parameters, etc.Through Pilot Run, potential problems can be found in advance, and adjustments are made in time.Ensure the smooth progress of subsequent mass production.The following isThe main technical links and functions of Pilot Run:

Verification process process:The purpose of Pilot Run is to verify whether the entire process process can be carried out in accordance with the design goals to ensure the coherence and repetitiveness of all steps. Especially in the integrated circuit manufacturing, the process process is very complicated. Each step may affect the final electrical performanceHe is good.

Evaluation material performance: inIn Pilot Run, choose appropriate materials and test its performance in different process steps, including HKMG (High-K Metal Gate) materials, SIGE, TSV materials, etc.By small -scale production and operation, the material performance meets the design requirements and optimizes the corresponding parameters.

Optimize electrical performance:Pilot Run is also used for electrical testing. By evaluation of key electrical indicators such as parameters such as Threshold Voltage (VT), Gate Leakage, SRAM, DRAM and other key electrical indicators to ensure that the electrical performance of the product meets the requirements.PILOT RUN often involvesFine -adjustment of process parameters to improve electrical performance.

Good rate assessment: Good rate is an important evaluation indicator in the manufacturing process.existIn Pilot Run, whether the yield of the product manufacturing under the new process platform has reached the expectation.This process is usually confirmed by Wat (WAFER Acceptance Test) and subsequent electrical tests (such as SRAM or DRAM test).

Solve process problems:During the PILOT RUN process, some technical problems that have not been found during the design and experimental phase often encounters short -circuit problems such as M1 and TCP, TSV and M1 layered problems.At this stage, through data collection and analysis, timely optimize process flow and parameter settings, and propose corresponding solutions.

Reliability verification: inIn Pilot Run, a series of reliability tests will also be performed to ensure the long -term stability of the product under different process environments.For example, Gate Leakage, electric migration, thermal stability, etc. in HKMG.

KIP and KEP evaluation: KIP (Key in-Line Parameter) and KEP (Key Electrical Parameter) are commonly used evaluation indicators in Pilot Run.These parameters are feedback through actual production data to ensure that in the production processKey parameters are within the control range, so as to evaluate the feasibility and stability of the process.