On July 1st, Toshiba Corporation's Semiconductor Company and Storage Products Company consolidated to form Semiconductor & Storage Products Company.This page describes reliability information of semiconductor products.

Measurement Control

[As of April, 2011]

Measurement control regulations have been established to guide the control and use of measuring instruments.
Toshiba uses calibration instruments regulated by law that have been inspected and approved by authorized agencies. These instruments are periodically inspected and the results are filed and maintained. This type of control is performed by the Quality Assurance Department.
Semiconductor manufacturing is a field that involves very small dimensions for which there are no international standards. In such cases, Toshiba standards and Semiconductor Co. standards are formulated in cooperation with measurement device manufacturers and overseas agencies, enabling tracing to the standard calibration instrument of each process.
Procurement inspections, periodic inspections and spot inspections are performed on instrumentation. The related log books and slips are filed with the Quality Assurance Department. Approved instruments are identified by a seal which indicates the effective period and the next inspection date. In addition, the department that owns an instrument is responsible for daily management based on control standards.
Figure 1 shows the instrumentation accuracy traceability system.

This is [Figure 1 Instrumentation Accuracy Traceability System].

Figure 1 Instrumentation Accuracy Traceability System