The IPC-9194 should be used in conjunction with IPC- 9191. The IPC-9191 provides general guidelines for implementing SPC in electronics industry.

This standard is intended to aid in interpretation of the requirements in IPC-9191 specifically for Printed Board Assembly (PBA) manufacture. This standard promotes process thinking and control of process inputs, in-process parameters and process outputs, including product parameters. The standard organizes various aspects of process control in the Plan, Do, Check and Act (PDCA) cycle.

Purpose  Purpose of the IPC-9194 is to establish practical guidelines for implementation of SPC in the electronics manufacturing operations for continually improving processes and reducing waste.

The standard includes establishing conditions for SPC, implementation of SPC and sustaining SPC. The Implementation phase includes the following elements:

1. Preparation

2. Set up and Process Characterization

3. Practicing SPC

4. Monitoring Effectiveness of SPC

5. Improving Process Capability

Successful implementation of SPC is contingent on effectiveness of the quality management system that includes controlled documentation, calibration, corrective action and management review elements.