INDEPENDENT WORK / ICEPAK / REPORT REVISION 1

Explore the PCB
thermal results

By Mohammadreza Khani, PhD · Khani Solutions · Independent illustrative model; not manufacturer or employer hardware or results.

Native temperature maps and saved component values from the corrected smartphone assembly at 5.5 W heat input and 25 °C ambient.

Mesh and steady solve completed · energy residual meets its targetProvisional numerical results. Initialization diagnostics, global heat balance, mesh independence and physical validation remain open.

54.33 °CBattery · saved volume maximum

74.51 °CProcessor package · saved volume maximum

671,368Generated mesh cells

SAVED NATIVE FIELDS

Inspect the heat distribution

Open full-resolution view ↗

Native Icepak battery temperature surface display

100%

Battery surface display: maximum 54.359 °C. Saved battery volume maximum: 54.329 °C. These are different postprocessing statistics.

Drag to pan · wheel or + / − to zoom. These are original saved contour images, not a new solver run. No transient heating timeline is available from this steady result.

Full saved temperature table

Component	Volume maximum °C	Vertex-average monitor °C
Battery Cell	54.33	50.67
Processor Package	74.51	74.39
PMIC Package	67.29	66.74
Display Layer	72.60	50.32
Memory Package	61.06	60.39
Camera Module	61.13	60.54
Main PCB	Not recorded	59.25
Rear Cover	Not recorded	51.43
Display Glass	Not recorded	50.16

TRACE THE REPAIR

What changed from the failed run?

Evidence	Earlier failed run	Corrected run
Cooling assignment	Region faces without usable cooling mesh	18 physical exterior faces · 0.02776 m²
Mesh cells	25,876	671,368
Thin-part mapping	Missing TIM/copper mesh warnings	All 19 physical part names appear in mapping
Temperature limiter	Repeated 5,000 K cap	No limiter messages in corrected transcript
Energy residual	1.4195 × 10⁻⁷ · target not met	6.8952 × 10⁻⁹ · target met

This compares a failed setup with a repaired setup. The old 4,726.85 °C value was a numerical cap, so it cannot be used to calculate a cooling-performance improvement. The two meshes do not establish a mesh-independence study.

Recorded energy residuals

One saved outer iteration; the configured 1,000 iterations is a ceiling. No extended convergence curve is inferred.

Completed, with checks still open

Normal Completion; 63 seconds; 4 solver cores.
The transcript contains wta(1st) to string_length during initialization. Its effect remains unresolved.
Independent outward heat balance against 5.5 W is not yet verified.
Layer quality, mesh refinement and physical measurements remain to be checked.

The failed-run residuals are retained in the selector above. Original corrected-run diagnostics are included in the report downloads.

INSPECT THE ASSUMPTIONS

The model behind the results

75 × 160 × 8 mm illustrative phone. Steady conduction in solids and internal air; airflow, buoyancy and radiation are disabled. External h = 7 W/(m²·K), ambient 25 °C. Ideal contacts and effective materials are assumed. This is a separate model from the open-source PCB stages, not a matched solver benchmark.

Component input

Battery Cell · 65 × 108 × 4.2 mm · 0.8 W prescribed heat.

Prescribed thermal losses

Display Layer1.2 W

Battery Cell0.8 W

Processor Package2.5 W

PMIC Package0.5 W

Memory Package0.3 W

Camera Module0.2 W

5.5 W thermal generation in total. These are prescribed losses, not electrical charging power or an electrochemical battery model.

SEPARATE CALCULATION / NOT ICEPAK OUTPUT

Explore the analytical cooling screen

An ideal isothermal skin obeys T = T_ambient + Q / (h A), with A = 0.02776 m². Adjusting these controls changes only this estimate; it does not recalculate the saved temperature maps or component results.

Total heat: 5.500 WCooling coefficient: 7.0 W/(m²·K)

Analytical isothermal skin estimate53.30 °C25 °C ambient · no internal thermal resistance or hotspots

Report analytical case	Heat W	h W/(m²·K)	Estimate °C
Weaker cooling	5.500	3.5	81.61
Nominal assumption	5.500	7.0	53.30
Stronger cooling	5.500	14.0	39.15
Higher heat input	6.875	7.0	60.38

15-PAGE CORRECTED REPORT / ORIGINAL FILES

Read the report and inspect the evidence

Open corrected report PDF Report, plots & source · 4 MB Full native project & results · 78 MB AEDT model input Component maxima CSV Vertex-average monitors CSV Explorer data & provenance Interactive page source

Original PDF SHA-256: b33467dd8e3029652bbc7ef82a85ccc2d0687eb3a29c4e533506a185f48748a4. Source values are from the saved native volume summary and vertex-average monitors. Surface-display legends can differ from volume maxima. Report and native solver archives are original saved evidence. The interactive-page source download contains this public page, its controls and a local preview guide.