Process CapaBIlity Analysis

(Measure Phase)
Scope of Module
Process Variation
Process CapaBIlity
Specification, Process and Control Limits
Process Potential vs Process Performance
Short-Term vs Long-Term Process CapaBIlity
Process CapaBIlity for Non-Normal Data
Cycle-Time (Exponential Distribution)
Reject Rate (BInomial Distribution)
Defect Rate (Poisson Distribution)
Process Variation
Process Variation is the inevitable differences among individual
measurements or units produced by a process.

Sources of Variation
within unit   (positional variation)
between units   (unit-unit variation)
between lots   (lot-lot variation)
between lines   (line-line variation)
across time   (time-time variation)
measurement error  (repeatability & reproduciBIlity)
Types of Variation
Inherent or Natural Variation

Due to the cumulative effect of many small unavoidable causes
A process operating with only chance causes of variation present is said to be “in statistical control”