G1Requirement freeze
Material, part geometry, process window, atmosphere, pressure or load, utilities, data records, site conditions, and acceptance criteria are recorded before configuration is finalized.
Typical output
Approved technical requirement brief
G2Design review
The chamber, hot zone, tooling, press or gas system, vacuum package, controls, cooling, safety interfaces, and maintenance access are reviewed against the agreed process boundary.
Typical output
Configuration review notes and open-item list
G3Assembly and inspection
Key assemblies, wiring, seals, sensors, fixtures, and utilities are checked against drawings and the agreed bill of scope before functional testing.
Typical output
Inspection records and deviation register
G4Leak and empty-load tests
Vacuum or pressure integrity, temperature response, alarms, interlocks, cooling, and empty-load behavior are checked using a defined method and recorded condition.
Typical output
Test records with conditions and results
G5Factory acceptance
FAT scope is agreed around the actual equipment functions, data channels, dummy tooling or test load, documentation, operator walkthrough, and outstanding actions.
Typical output
FAT checklist, data package, and action closure
G6Installation and service readiness
Site utilities, installation boundaries, training, spare-part context, maintenance access, operating records, and support contacts are prepared for handover.
Typical output
Handover pack and service baseline