Quality Management

Quality Policy

VIS is committed to becoming global customers' preferred choice for semiconductor manufacturing by providing services of the highest quality.

VIS employees are dedicated to achieving their daily objective of exceeding customer expectations by focusing on delivering exceptional services with continuous quality improvement.

Zero Defect Policy

VIS is committed to embedding zero defect mindset in production, supply chain management, and service processes.

VIS is dedicated to improving constantly in order to achieve the ultimate goal of zero defect.

Quality Philosophy

VIS has established the TQA (Total Quality Assurance) system. The TQA system framework is shown below:

The TQA system covers four dimensions: DQA (Design Quality Assurance), VQA (Vendor Quality Assurance), MQA (Manufacturing Quality Assurance) and SQA (Service Quality Assurance). The key functionalities of each dimension ae listed below:

VIS Quality System-Four Dimensions


Design Quality Assurance
  • New Technology Development System
  • New Process Qualification System


Vendor Quality Assurance
  • Supplier Management System
  • Incoming Quality Control System
  • Material Handling and Storage System


Manufacturing Quality Assurance
  • Process Control System
  • Process Quality Control System
  • Outgoing Quality Control System
  • Non-conforming Product Control System


Service Quality Assurance
  • Customer Complaint Handling System
  • Customer Return Handling System
  • Customer Satisfaction Survey
  • Customer Audit

Quality System

VIS's Quality and Reliability team continues to work with our clients and engineering team to improve stability and quality of manufacturing, and ensure quality of clients' products. The following table shows VIS's incorporation of quality parameters into every facet of the company's operations.

Supplier Quality Management
  • Supplier quality assistance
  • Material spec & characterization (including chemical analysis)
  • Incoming raw material quality control
  • Supplier evaluation & auditing
  • Supplier complaint handling & QIP (Quality Improvement Program)
Reliability Assurance
  • Process reliability qualification, monitoring, & corrective action plan follow up
  • Wafer level reliability methodology development & implementation
  • New technology/module qualification spec determination & methodology development
  • Customer product reliability risk assessment support
  • Worldwide customer reliability spec and related Q&A
In-Process Quality Engineering
  • Wafer level reliability monitoring
  • Environmental ESD prevention methodology development & implementation
  • Mask incoming quality control & monitoring
  • In process quality control, monitoring and defect analysis
  • Manufacturing and environmental control and monitoring
  • Clean room environment monitoring and audit
  • Engineering change and experiment review
  • Outgoing wafer quality improvement and monitoring
  • Corrective action request for customer issues
Failure Analysis (FA)
  • Process technology development & engineering enhancement support
  • In-process defect analysis support
  • FA technology/methodology development & implementation
  • Reliability support for parts failure analysis
  • Reliability methodology development support
Calibration Center
  • Calibration methodology and standards development
  • Measurement & Test equipment (M&TE) calibration control and monitoring
Customer Satisfaction
  • Customer corrective action response
  • Customer satisfaction surveys
  • Service documentation
Quality System Development
  • Audit and development of Quality System
  • SPC maintenance and refinement
  • Customer audit coordination
  • Technical document control and distribution
  • Management of engineering change documentation procedures
Total Quality Management
  • Development and implementation of Quality Training Program
  • Continuous improvement team activity promotion
  • Promotion of employee involvement in total quality activity (e.g. suggestion system, 5S, quality concept & skill publicity)

Quality System Certification

Other Awards & Certificates More +