Investigation of BGA underfill process based on multipositional computed tomography

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00559367" target="_blank" >RIV/68378297:_____/22:00559367 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21670/22:00358953 RIV/68407700:21230/22:00358953

Výsledek na webu

<a href="https://doi.org/10.1088/1748-0221/17/06/P06037" target="_blank" >https://doi.org/10.1088/1748-0221/17/06/P06037</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-0221/17/06/P06037" target="_blank" >10.1088/1748-0221/17/06/P06037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of BGA underfill process based on multipositional computed tomography

Popis výsledku v původním jazyce

In this paper, defect inspection related to an epoxy underfilling process between integrated circuits (ICs) and printed circuit boards (PCBs) is presented utilizing the data fusion of multipositional computed tomography (DFMCT). The work aims to verify the existence of underfilling epoxy which was not possible utilizing standard computed tomography due to strong metal artifacts created by ball grid array (BGA) packages. By interpreting the results obtained from the scanned samples, we were able to correlate the excess epoxy defects and the success of the underfilling process. We present the data fusion approach as an alternative method when traditional metal artifact reduction methods would be insufficient. The study was commenced by making a proper radiographic simulation using aRTist simulation software. The simulation enabled us to choose the right mounting positions which produce less metal artifacts for the experimental study. The DFMCT was achieved by acquiring multiple computed tomographic scans at different sample orientations. The reconstructed volumes were then aligned, and the fused volume was obtained by combining the corrected data and suppressing the disrupted data of the reconstructed volumes.

Název v anglickém jazyce

Investigation of BGA underfill process based on multipositional computed tomography

Popis výsledku anglicky

In this paper, defect inspection related to an epoxy underfilling process between integrated circuits (ICs) and printed circuit boards (PCBs) is presented utilizing the data fusion of multipositional computed tomography (DFMCT). The work aims to verify the existence of underfilling epoxy which was not possible utilizing standard computed tomography due to strong metal artifacts created by ball grid array (BGA) packages. By interpreting the results obtained from the scanned samples, we were able to correlate the excess epoxy defects and the success of the underfilling process. We present the data fusion approach as an alternative method when traditional metal artifact reduction methods would be insufficient. The study was commenced by making a proper radiographic simulation using aRTist simulation software. The simulation enabled us to choose the right mounting positions which produce less metal artifacts for the experimental study. The DFMCT was achieved by acquiring multiple computed tomographic scans at different sample orientations. The reconstructed volumes were then aligned, and the fused volume was obtained by combining the corrected data and suppressing the disrupted data of the reconstructed volumes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Inženýrské aplikace fyziky mikrosvěta</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

1748-0221

Svazek periodika

17

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

P06037

Kód UT WoS článku

000822178400004

EID výsledku v databázi Scopus

2-s2.0-85133638248