Discussion

Match List I with List II and select the correct answer using the codes given below :

List I	List II
(a) Chemical analysis	(i) Probe station
(b) Structural characteristics	(ii) SEM
(c) Topology	(iii) XRD
(d) Electrical characteristics	(iv) EDAX

Answer: C

The correct matching is a-iv, b-iii, c-ii, d-i.

Chemical analysis: EDAX (energy-dispersive X-ray analysis) identifies elements from their characteristic X-rays (iv).
Structural characteristics: XRD (X-ray diffraction) reveals crystal structure and lattice spacing (iii).
Topology: SEM (scanning electron microscope) images surface topography (ii).
Electrical characteristics: a probe station makes electrical contact with devices on a wafer for I-V and C-V measurements (i).

The other codes swap XRD and SEM, or give chemical analysis to the probe station.

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