SOLUTION NAVIGATOREngineering conditions
For “Post-mold die shift and RDL misalignment in fan-out packages”, add details that may change the assessment order and check the basis and limits of each candidate.
Engineering conditions
Establish pre- and post-mold die coordinates, then confirm material curves and permitted flow changes. Identify missing conditions rather than calculating unsupported compensation.
Live assessment
Establish consistent pre- and post-mold coordinates and panel maps before discussing RDL compensation.
Unconfirmed: Are pre- and post-mold die translations, rotations, and panel-position maps available in the same coordinate system?Confirm that material curves and process settings match the actual batch.
Unconfirmed: Are measured curves available for mold compound, temporary fixation material, and primary structural materials?Confirm whether flow architecture can change and define acceptable comparison scope.
Unconfirmed: Can this evaluation compare carriers, fixation methods, or die-first / RDL-first flows?candidate solutions
The order changes only with conditions you confirm. Public information cannot establish suitability for your actual samples.
After pre- and post-mold measurement, select the main displacement pattern. Combine it with confirmed coordinates, materials, and flow conditions to adjust next steps; the pattern does not establish a cause.
Global, position-dependent, or local shift patterns guide compensation, modeling, and flow controls. Spatial patterns alone cannot prove mold compound, carrier, fixation, or architecture caused the issue.
Based on reported conditions and public sources. Ready to assess does not establish sample applicability or root cause. Order does not identify the best solution.
Establish consistent pre- and post-mold coordinates and panel maps before discussing RDL compensation.
Confirm that material curves and process settings match the actual batch.
No result provided. Clarify key conditions before arranging an assessment.
Fraunhofer IZM · Panel Level Packaging Consortium 2.0 ↗It provides research directions, not compensation accuracy or yield for this panel.
Moldex3D · 2024 IC Packaging Technology Conference ↗The event overview does not provide module versions or validation errors.
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Related solutions
Fraunhofer IZM
Institutional research includes precision placement, temporary fixation materials, and adaptive imaging for planning process comparisons.
Basis: Fraunhofer IZM：Panel Level Packaging Consortium 2.0The reviewed public information describes a workflow. It has not been linked to a specific product in the BLNKK solution catalogue.
Moldex3D
Manufacturer descriptions cover filling, curing, cooling, die shift, and structural evaluation. Calibrate with sample data before comparing variables.
Basis: Moldex3D：2024 IC Packaging Technology ConferenceThe reviewed public information describes a workflow. It has not been linked to a specific product in the BLNKK solution catalogue.
imec
imec demonstrates forming die-to-die interconnects before over-molding, providing a research control for evaluating process order.
Basis: imec：A new approach to fan-out wafer-level packagingThe reviewed public information describes a workflow. It has not been linked to a specific product in the BLNKK solution catalogue.
EV Group
Fan-out die movement requires matching subsequent RDL exposure patterns to actual positions and verifying alignment.
Basis: EVG’s product page and January 2024 paper describe alignment/distortion functions and explicitly require external metrology for die-level compensation and rerouting.SCREEN Semiconductor Solutions
Assess whether fan-out RDL exposure patterns can accommodate actual die positions and substrate distortion.
Basis: SCREEN's December 3, 2025 release documents compensation and claims 1 µm-or-less resolution from updated optics.Onto Innovation
When die shift affects RDL alignment, compare panel exposure and the workflow that incorporates measured die positions.
Basis: The annual report describes panel RDL and this workflow; a dated 2022 official release provides historical order evidence.TSMC
Fan-out die-shift investigations can prompt an architecture and placement-tolerance review.
Basis: The page distinguishes processor/DRAM InFO-PoP from substrate-based multi-chiplet InFO-oS.Koh Young Technology
Placed dies require checks of visible position and appearance, with height and tilt capability established for the selected model.
Basis: The official body distinguishes D from D+ and describes inspection of visible microcracks, chipping and foreign material.Onto Innovation
Measure reconstituted-panel die positions for downstream RDL compensation; integration/software is needed for actual exposure correction.
Basis: The indexed official page lists these inspection and metrology modes. Direct access to the page and supporting paper was unavailable during this review.Deca Technologies
Measured die movement drives adaptive alignment/routing rather than merely reporting shift; actual design rules and LDI integration determine recovery limits.
Basis: Current pages explain measurement, design during manufacturing and LDI; the ISS 2019 presentation supplies historical alignment/routing examples.Powertech Technology Inc. (PTI)
A documented chip-last flow is an architecture alternative when chip-first embedding shift is the issue; changing sequence requires design and qualification, not a correction to already embedded dies.
Basis: The current CLIP page states minimum RDL L/S≥2/2µm; the January 2022 investor presentation also describes known-good RDL integration.References
Research includes precision placement, temporary materials, die-shift / warpage factors, and adaptive imaging.
Limit: It provides research directions, not compensation accuracy or yield for this panel.The manufacturer includes die shift, underfill, curing, and structural analysis within IC packaging simulation capabilities.
Limit: The event overview does not provide module versions or validation errors.A mold-first flow may cause die shift; the research flow forms die-to-die interconnects before molding.
Limit: This is a wafer test vehicle, not a panel product specification.The institution lists warpage, materials and layer order, optical identification, and local alignment as panel technology challenges.
Limit: This describes 2016 research scope, not current commercial equipment limits.EVG’s product page and January 2024 paper describe alignment/distortion functions and explicitly require external metrology for die-level compensation and rerouting.
Limit: Scope and limitations Compensation does not prevent molding shifts or repair existing opens. The described die-shift workflow excludes thermal influences; traceability annotation does not prove corrected overlay. What to prepare BLNKK suggests documenting shift maps, mark quality, RDL layouts/correction rules and resist/process conditions, with post-exposure alignment checks. Confirm with the supplier Confirm metrology/layout interfaces, correction modes, substrate/mark requirements and the resist-specific process window. Discuss thermal deformation separately.SCREEN's December 3, 2025 release documents compensation and claims 1 µm-or-less resolution from updated optics.
Limit: Scope and limitations Resolution is not overlay accuracy or correction range; universal values are not disclosed. Exposure compensation does not reposition dies; verify actual RDL alignment and connectivity. What to prepare BLNKK suggests preparing displacement/rotation maps, substrate distortion, alignment marks, resist stacks and RDL dimension/overlay targets. Confirm with the supplier Confirm formats, metrology/exposure integration, resist windows, correction limits and acceptance methods before representative exposure trials and measurements.The annual report describes panel RDL and this workflow; a dated 2022 official release provides historical order evidence.
Limit: Scope and limitations Exposure adjustment does not physically relocate shifted dies. Public sources do not guarantee project overlay or electrical yield; historical orders do not confirm current availability. What to prepare BLNKK suggests preparing die-shift maps, panel topography, resist thickness, overlay tolerance and validation of coordinate conversion and exposed patterns. Confirm with the supplier Confirm available configuration, substrate/resist suitability, position-data interface, compensation approach and sample alignment validation.The page distinguishes processor/DRAM InFO-PoP from substrate-based multi-chiplet InFO-oS.
Limit: Scope and limitations Does not correct already-shifted die or guarantee yield. Public descriptions are not project design rules; PoP/oS are not interchangeable. What to prepare BLNKK suggests layout, positional tolerance, RDL/via needs, molding measurements and validation targets, considering redesign cost. Confirm with the supplier Confirm option, design/data interfaces, positional budget and validation, plus program access and supply conditions.The official body distinguishes D from D+ and describes inspection of visible microcracks, chipping and foreign material.
Limit: Scope and limitations Visible surfaces do not establish die positions after molding. Do not transfer D+ reflective-height capability to D. What to prepare BLNKK suggests representative dies and carriers, placement coordinates, reference marks and relevant defect samples. Confirm with the supplier Confirm model-specific height/tilt performance, coordinate export and integration with downstream RDL alignment.The indexed official page lists these inspection and metrology modes. Direct access to the page and supporting paper was unavailable during this review.
Limit: Scope and limitations Public information does not establish full-field warpage measurement through thermal cycling or detection of every internal defect. What to prepare Prepare sample materials, dimensions and surface details, known-defect samples or images, dimensional tolerances and line throughput targets. Confirm with the supplier Ask about sample compatibility, detection and false-call performance, repeatability, configuration and production-data interfaces.Current pages explain measurement, design during manufacturing and LDI; the ISS 2019 presentation supplies historical alignment/routing examples.
Limit: Scope and limitations Compensation depends on contact/routing rules and implementation. Historical layer counts, yield or reliability examples are not family-wide guarantees. What to prepare BLNKK suggests preparing displacement/rotation distributions, contact/routing rules, panel format, measurement data and existing exposure/data workflows. Confirm with the supplier Confirm the M-Series architecture, APDK and allowed variation, measurement/LDI integration and pilot validation; define warpage acceptance separately.The current CLIP page states minimum RDL L/S≥2/2µm; the January 2022 investor presentation also describes known-good RDL integration.
Limit: Scope and limitations It cannot reposition embedded dies or guarantee elimination of warpage or yield loss. Published capabilities do not qualify every design. What to prepare BLNKK suggests current flow/shift data, die and pin layouts, RDL design, conversion costs and a validation plan. Confirm with the supplier Confirm design rules, known-good RDL criteria, assembly sequence and stack-specific warpage/reliability evidence.Before assessment