How can we determine whether RDL alignment failure mainly reflects die shift, panel topography, or coordinate calibration?
The following evaluation questions were compiled by BLNKK from primary sources. No actual professional or supplier answers are available yet.
Die shiftFOPLPRDL alignment
Problem context and interpretation
BLNKK review of public information
Fraunhofer IZM and imec research identify panel alignment and mold-first die-shift challenges respectively. The measurement sequence below is a BLNKK editorial evaluation plan requiring actual-sample confirmation.
Retain die coordinates and topography maps across process steps.
Evaluate position compensation and flow changes separately.
