Chemical etching method | Electrochemical plating method | SEI | SEPC | EBIC | ||||
Junction delineation type | Metallurgical | electrical | ||||||
Delineation display | Highlight etched n doped region | Highlight n doped regions covered by Cu | Delimitation of the metallurgical junction | Highlight p doped regions in bright and n doped regions in dark | Space charge region mapping | |||
Spatial delineation range | HIGH | HIGH | HIGH | LOW (because of SEM imaging) | LOW (because of SEM imaging + probe positioning) | |||
Applicable on multiple junctions design | YES | YES | LIMITED multiple probing configurations required | YES | LIMITED multiple probing configurations required | |||
Require preliminary sample design informations | NO | NO | YES for probe positioning | NO | YES for probe positioning | |||
Spatial resolution | LOW | LOW | LOW | HIGH | LOW | |||
Applicable on short junction (1 µm depth) characterization | LIMITED | NO (large size of the Cu particles) | NO (due to probing) | YES | NO (due to probing) | |||
Junction nature determination | Limited (highly dependent on etching duration) | YES (Cu deposition on n doped areas) | YES | YES | YES | |||
Isotype delineation | LIMITED (1) | n+ = thicker Cu deposition | NO | LIMITED (2) | NO | |||
Other available information(s) | NO | NO | NO | Quantitative approach yet reported | SCR mapping under polarization; diffusion length determination… | |||
Sensitivity to the experimental set up | HIGH | MEDIUM | LOW | LOW | LOW | |||
Sensitivity to the polishing quality | LOW | LOW | MEDIUM | MEDIUM | HIGH | |||
Destructive method on the studied CS | YES | YES | NO | NO | NO | |||
Require Expensive tool | NO | NO | YES | YES | YES | |||
Require specific tool except SEM | NO Common chemical solutions | YES | NO | YES Probing + EBIC ampli | ||||
Easy to implement | YES | YES | YES | YES | NO | |||
Safety constraint level | HIGH | HIGH | LOW | LOW | LOW | |||