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📄 11 articles in total 📅 Continuously updated 🔥 Pinned first, then sorted by rating, views and publish date
Measurement, Inspection & Lab · Inspection System · Full Inspection & Sampling Decisions

Advancing QE Skills (34) | Decision-making for 100% Inspection and No Inspection: A Quantitative Balance of Cost and Risk

A certain electronics assembly company has been continuously complained to by customers for "missed inspections" over th…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

How Many Pieces Should First Article Inspection Take, and When Must It Be Redone? — Three Comparison Tables for Sample Size, Evaluation Criteria, and Trigger Conditions

In a certain stamping factory, after a mold change, the operator took the first piece and measured three external dimens…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

Inspection Stations Keep Increasing, but Customer Complaints Don’t Decrease — A Five-Step Method for Calculating the Economic Viability of Inspection Points

A hardware factory has set up five inspection stations after seven processes, with six inspectors, and averages twelve c…

Measurement, Inspection & Lab · Inspection System · Full Inspection & Sampling Decisions

Why Are There Still Defects After Passing Sampling Inspection? —— A Five-Step Method to Quantify and Manage the Risk of Missed Defects

An electronics company's IQC follows the standard sampling inspection: batch size of 1000 units, general inspection leve…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

Inspector Says "I Inspected It," but Customers Get Defects — Five-Step Method to Quantify Inspection Effectiveness Using Blind Sample Challenge Tests

The quality manager of an electronics manufacturing company was pulled into a customer complaint meeting by the sales de…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

Why Do Issues Still Slip Through Despite a Full Circle of Patrol Inspection? —— Five-Step Design Method for IPQC Patrol Inspection

When a customer conducts a factory audit and reaches the assembly station, they casually pick up the process patrol insp…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

First Article Inspection (FAI) Practical Guide — A Systematic Approach to Guarding the Quality Starting Point of Batch Production

Abstract : In batch production, a large number of quality incidents often stem from the loss of control over the first p…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

Inspection Planning and Control Plan Development — A Systematic Approach to Making Every Inspection Valuable

Abstract : Many companies view inspection as "setting more checkpoints and strictly controlling them," resulting in an i…

Measurement, Inspection & Lab · Inspection System · Full Inspection & Sampling Decisions

Practical Statistical Sampling Inspection — From GB/T 2828.1 to Zero Defect Sampling

In the quality inspection system of manufacturing enterprises, sampling inspection is one of the two major inspection st…

Measurement, Inspection & Lab · Inspection System · Full Inspection & Sampling Decisions

Full Inspection vs. Sampling Inspection Decision — AQL Is Not the Only Answer

Abstract : Should incoming and process inspections be full or sampling inspections? Should AQL be set at 0.65 or 1.0? Sh…

Measurement, Inspection & Lab · Inspection System · IQC/IPQC/FQC/OQC Planning

IQC/IPQC/FQC/OQC —— Four "Gatekeepers" in the Inspection Process of Manufacturing Enterprises

Why Do We Need to Distinguish Four Inspection Stages? Many small and medium sized enterprises SMEs simply understand "qu…