Quality Assurance System
Quality Assurance System
"We, New Japan Radio Co., Ltd., continually creativity to improve our business and thus produce adaptable products and services of high quality that meet the satisfaction of our customers.", is our Quality policy.
To our customers we proffer the product which is high efficiency, high quality, high reliability, and we always consider earth environment. In the present circumstances, the electronic equipment has been upgraded with its performance and plays important role in any industry. Therefore default of the equipment might cause a serious problem on the system. Year after year, IC of our electronic equipment is requested the higher quality and the higher reliability.
In order to meet such rigorous requirements, we acquired ISO 9001 and IATF 16949 as a quality management system and ISO 14001 as an environmental management system, respectively.
We will make unremitting efforts to offer the products of higher quality and higher reliability relentlessly that customers can be more at ease to use.
Fig.1shows NJR's quality assurance system from the planning to shipping and customer services.
2.2.1 DesignWe design the product to meet the customer's requirement by close communications. The design makes by using the CAD system , and is based on the design rules justified reliability. For the quality of the design we check production technologies, development data and quality information by Design Review (DR).
2.3.1 Quality control of Raw MaterialsWe make effort to improve the quality of the raw material by quality approval of the materials, the purchasing specification, incoming inspection and close communication with the vendors.
2.3.2 Process ControlIn addition to raw materials, process control effects importantly the quality. We make effort of avoid scattering products by the standardization and automatic system. We check the performance and the quality by the QC inspection. Fig.2 shows an example of process control and Fig.3 shown inspection specification.
Fig.3 Inspection specification
|INSPECTION ITEM||QUALITY CHARACTERISTICS||LEVEL||AQL(%)|
|Major Defect||Open,Short,Function defect,No mark,Wrong mark,
|External Visual||Mark unclear,Chipping,Scratch,Out-of-dimension,
|Electrical Characteristics||Items which maximum and minimum values are specified
in Electrical Characteristic test.
- Sampling: Apply ANSI/ASQC Z1.4-1993 (Equivalent to MIL-STD-105D)
- Ambient Temperature 25±3[°C]
- Relative Humidity 75[%] or less
3.Customer Returning & Failure Analysis
In the case of device trouble on the customer's operation, we request that customers should send back it. With the troubled products, cause of troubles founded by our salesmen are returned to our factory. Generally, the quality assurance section is responsible for failure analysis. The design section or the engineer section is responsible for the application troubles. Failure analysis data are returned to our quality assurance section. After we totally reevaluate these failure analysis data, we report the failure analysis data to customer by way of salesman. These data returned to the design section, the engineer section and the manufacturing section, are useful for preventing of troubles and progressing in the product's quality.