Semiconductor English

Collocation rehearsal

Practice these as complete field moves: say the phrase, name the evidence it requires, then add the owner and next action.

• put a lot on hold Stop a wafer lot from moving until the hold reason, owner, risk, and release condition are clear.
• release a lot Allow a held lot to continue only after route, disposition, and risk acceptance have been documented.
• open an excursion Start a formal investigation when SPC, defect, yield, or tool behavior moves outside expected limits.
• contain affected lots Identify, quarantine, or restrict lots that may share the same exposure, tool path, material, or time window.
• verify lot genealogy Trace where a lot has been, which tools touched it, and which lots share possible exposure.
• quarantine suspect material Physically or systemically prevent wafers, chemicals, parts, or finished units from being used or shipped.
• review SPC charts Look at control charts, rules, limits, and trends before deciding whether a signal is real.
• separate signal from noise Avoid reacting to a single data point until sampling, repeatability, and tool history are checked.
• tighten the process window Reduce allowed process variation when yield, reliability, or margin is at risk.
• run split lots Process comparable lots or wafers under different conditions to isolate a variable or compare paths.
• qualify a recipe Generate evidence that a controlled tool recipe meets process, quality, and reliability requirements.
• match a tool Show that two tools produce equivalent results within approved limits for a given process step.
• move lots to the matched tool Transfer work to an alternate tool only within the approved matching, recipe, and product constraints.
• pull in preventive maintenance Move planned maintenance earlier to reduce drift, contamination, safety, or downtime risk.
• recover tool uptime Restore qualified equipment availability without bypassing restart, monitor, or qualification requirements.
• check chamber history Review recent maintenance, cleans, alarms, consumables, recipes, and abnormal events for a process chamber.
• confirm metrology repeatability Repeat or cross-check measurements before treating a trend as a process problem.
• hold shipment Prevent finished units from leaving until quality, reliability, customer, or compliance questions are resolved.
• screen for early-life failure Use burn-in, stress, or test screening to identify infant mortality risk before release.
• bin devices by speed and power Sort parts into usable categories after test, often tied to customer specifications or price.
• perform failure analysis Investigate failed die, packages, or returned units to identify physical, electrical, process, or use-related causes.
• close the 8D Complete the structured customer problem-solving report with verified root cause and effective corrective action.
• freeze the mask set Stop design changes so masks, reticles, wafer starts, and downstream schedules can proceed.
• release the PDK Publish foundry design rules, models, and files for a process after readiness checks are complete.
• lock the tape-out package Finalize the files, checks, signoffs, and assumptions needed for mask generation.
• allocate wafer starts Assign constrained foundry capacity or fab starts across products, customers, or priorities.
• approve a deviation Permit a controlled exception only after impact, owner, duration, and risk acceptance are documented.
• issue a customer quality notice Give customers a factual update about risk, containment, impact, and next action without speculation.

Dialogue rehearsal

Open a situation, assign roles, then replace one technical fact with a similar issue from the learner's workplace.

Specialized nomenclature

Use the categories for sorting practice: term, plain-English meaning, business risk, and where the term appears in a real meeting.