About the 2021 VLSIresearch Customer Satisfaction Survey VLSIresearch received feedback from more than 89% of the chip market and 79% of subsystems customers for this year's survey. The survey spans 2½ months and covers five languages. Worldwide participants were asked to rate equipment suppliers among fourteen categories based on three key factors: supplier performance, customer service, and product performance. 1,337 surveys were returned, resulting in 18,148 total responses.
The VLSIresearch annual Customer Satisfaction Survey is the only publicly available opportunity since 1988 for customers to provide feedback for suppliers of: semiconductor equipment and subsystems. The 10 BEST, THE BEST, and RANKED 1st awards provide special recognition to suppliers that are rated highest by their customers.
10 BEST awards recognize each semiconductor equipment supplier as a whole, regardless of product type:
Fab, Test, and Assembly equipment ratings are grouped together for an overall rating for each supplier
Each supplier is then listed in one of two categories based on a three-year average of total revenues for all its market segments: Large and Focused
THE BEST awards recognize the more detailed markets:
Fab, Test, Assembly Equipment, WFE to Foundation Chip Makers, WFE to Specialty Chip Makers, Assembly Subsystems, Test Subsystems, and WFE Subsystems