FPSBASE.RTG_TOOL_ASGN_RATIOS

FACILITY

VARCHAR2(6)

N

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. (* from FPSINPUT.GEN_FACILITIES)

ROUTE

VARCHAR2(256)

N

Route that has threading requirements (* from FPSINPUT.RTG_STEP_THREADING)

STEP

VARCHAR2(256)

N

A single processing step within a route representing a single tool visit. Step is often a very complex string and should rarely be displayed. Instead we should use process_display. (* from FPSINPUT.RTG_ROUTE_STEPS)

TOOL

VARCHAR2(16)

N

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. (* from FPSINPUT.EQP_TOOLS)

LOT

VARCHAR2(32)

N

A lot is a group of units that process together. Usually lot_id or lot_number in MES. All units in a lot are in the same carrier but there may be multiple lots in a carrier. (* from FPSINPUT.WIP_LOTS_STATIC)

LOT_ASGN_RATIO

NUMBER(5,2)

This is the ratio of lot assignments by tool calculated by the DWH (* from FPSAPP.SCH_W_H_S_TOOL_ASSIGNMENTS)

TOOL_COUNT

NUMBER(5)

UPDATED_INST

DATE

Time when the record was updated according to the source data. Note this is not the time when the record was actually updated in this table - it will almost always be earlier. (* from FPSINPUT.GEN_FACILITIES)

WEIGHTED_LOT_COUNT

NUMBER(7