FPSAPP.DASH_P_EQP_ENT_SHIFT_HIST_NOW

FACILITY

Facility is included in almost every join in the DWH so this represents a definitive split. A route must have all steps on tools in the same facility. A tool must process all lots in the same facility. If your site has multiple buildings where lots run on routes using tools in multiple buildings then everything should be one facility. For example, multiple Fab buildings. But if your site has independent facilities like Fab and Test and Assembly where lot may progress from one to the next but on different routes then these should be different facilities. Since this column is in virtually every table it is critical that the value here is exactly matches what is in the MES if the MES has facility. Use facility_display for the display friendly name displayed in applications. See site_name comment for client/site/facility example. (* inherited from FPSINPUT.GEN_FACILITIES)

TOOL

Tool is generally just the main tool. The exception is when different entities on the tool run completely independently and it is physically impossible to run wafers of the same lot across multiple entities. In this exception case, we may want to assign the entities to different eqp_types and therefore we should define each entity as a tool. Please note that when we do this there is no indication whatsoever that these different entities are on the same tool. (* inherited from FPSINPUT.EQP_TOOLS)

ENTITY

The lowest level of the equipment hierarchy that an event can be logged against. Tools, subtools, shared parent tools, chambers, ports are all entities. Load locks are also included although we consider them as ports. (* inherited from FPSINPUT.EQP_STATUS_VERIFY)

EQP_STATE

Client equipment state taken directly from their MES or from their existing tool state model. For EQP_MNT_FUTURE, this is the state that we estimate the entity will be in during the maintenance which is often set to a generic PM state if we do not have detailed information. (* inherited from FPSINPUT.EQP_L6_DETAILED_STATES)

START_SHIFT

Shifts can be of any length and it is important that all queries get the shift length based on start_shift and end_shift rather than assuming a set number of hours. (* inherited from FPSINPUT.CAL_SHIFTS)

SECONDS