SEMI 3D17 - Specification for Reference Material for Bonded Wafer Stack Void Metrology
A bonded wafer reference sample of known void dimensions is needed for metrology system development and calibration. This Specification provides the details that shall be used to create such a bonded wafer reference sample and is based on 300 mm reference samples used in a SEMI round robin study and published as SEMI AUX032-0715, Round Robin Study of Method for Measurement of Voids in Bonded Pairs of Silicon Wafers.
This Specification describes requisite test structures, including design, manufacturing, and certification procedure for a bonded wafer reference sample composed of two wafers.
Referenced SEMI Standards
SEMI 3D13 — Guide for Measuring Voids in Bonded Wafer Stacks
SEMI M20 — Practice for Establishing a Wafer Coordinate System