WFE Order-Book — wafer-fab-equipment maker disclosures (ASML, Applied Materials, Lam Research, KLA, Tokyo Electron) from quarterly IR: bookings, backlog, segment revenue, and guidance, in the STATED currency (EUR for ASML, JPY for TEL, USD for the rest — never converted). The 12–24-month leading indicator for fab capacity. Each row: company, fiscal_period, metric, value(s), unit, as_of (release date), source URL, verbatim quote.
USE THIS for: "is the equipment order-book turning up or down?", ASML bookings trend, AMAT segment revenue by quarter, reading WFE demand ahead of fab-capacity changes.
DO NOT USE for: fab capacity itself (use get_fab_capacity); foundry wafer ASP (use get_foundry_economics).
Filters: company (asml|amat|lam|kla|tel), metric (bookings|backlog|deferred_revenue|segment_revenue|guidance_revenue|lead_time_weeks), segment, fiscal_period. Latest slice for all tiers; full history Pro (never a 403). Cite as "Silicon Analysts — WFE Equipment Order-Book".