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Quality Policy
Coset's quality policy is simple: meet or exceed customer's quality expectation and continue to improve the standard of quality management practices by open communications among customers, suppliers and employees.

Coset does perform regular self-audits as well as welcoming evaluations from customers and ISO assessors. The results of these evaluations are utilized to improve and strengthen our quality system and thus our services to customers.

Summary for Coset Quality System
Control of Document
- Comply with ISO 9001

Resource management
- Training
Operators: OJT(on-the-job training), evaluation and yearly re-evaluation
- Work environment
ESD control: regularly check ESD items such as grounding, wrist strip, footwear, ..
Cleanness: monthly check by subcontractor
Temperature & Humidity: daily check

Product realization
- Control of in-process target value
- Process change
Request approval to customer for change before implementation
- RMA(Return Module Analysis)
Process flow chart
- Regular supplier evaluation
- Traceability
Every product is marked with a unique traceability code.
Process data storage by MES(Manufacturing Execution System) and Process flow sheet.
- Calibration
Calibration is performed for measurement equipment yearly by external supplier
- SPC(Statistical Process Control)
Daily measure a golden sample to check measurement equipment
- Shipping assurance
Final testing and measurement is done on each unit to meet customer expectations.

Measurement, analysis and improvement
- Internal audit
Quality management audit twice a year
Monthly special audit, focused on Production Team
- Product audit
Regularly reliability test
In-line quality check: die shear test, pull test, RGA(Residual Gas Analysis),..

Monitoring and measurement of processes
- Control of nonconforming product
- Continual improvement
Weekly quality meeting
39, Cheomdan venture-ro 60beon-gil, Buk-gu, Gwangju Korea 500-470
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