• Information Display
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• v.25 no.1
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• pp.22-34
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• 2024

• Journal of the Microelectronics and Packaging Society
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• v.15 no.2
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• pp.7-15
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• 2008

In this paper, the Chip-On-Flex (COF) assembly process using anisotropic conductive films (ACFs) was investigated and the reliability of COF assemblies using ACFs was evaluated. Thermo-mechanical properties of ACFs such as coefficient of thermal expansion (CTE), storage modulus (E'), and glass transition temperature $(T_g)$ were measured to investigate the effects of ACF material properties on the reliability of COF assemblies using ACFs. In addition, the bonding conditions for COF assemblies using ACFs such as time, temperature, and pressure were optimized. After the COF assemblies using ACFs were fabricated with optimized bonding conditions, reliability tests were then carried out. According to the reliability test results, COF assemblies using the ACF which had lower CTE and higher $T_g$ showed better thermal cycling reliability. Consequently, thermo-mechanical properties of ACFs, especially $T_g$, should be improved for high thermal cycling reliability of COF assemblies using ACFs for compact camera module (CCM) applications.

• Journal of Advanced Navigation Technology
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• v.23 no.4
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• pp.328-332
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• 2019

Advances in web technology have enabled technical convergence in various system environments to be carried out through the web interface. The Web can be categorized from the Web 1.0 to the 4.0, depending on its role, it has the characteristics of connects information, connects people, connects knowledge, and connects intelligence. In addition, various technological needs occurred through the mobile app during the 4th Industrial Revolution, and functions such as 3D, virtual reality, augmented reality, video/audio processing were enabled on the web, which was a simple means of providing information. Technical standards have been studied to support these period needs. In this paper, I would like to mention one of the Web assembly. We will explore ways to link and fuse Web assembly with existing web systems (or platforms) and analyze their technical implications through a variety of examples. In addition, we will conduct a study on the architecture that can fuse the existing javascript with the web assembly, and discuss the future direction of the study.

• Journal of Software Assessment and Valuation
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• v.16 no.2
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• pp.1-8
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• 2020

The similarity detection to plagiarism or duplication of computer programs requires a different type of analysis methods and tools according to the programming language used in the implementation and the sort of code to be analyzed. In recent years, the similarity appraisal for the object code in the embedded system, which requires a considerable resource along with a more complicated procedure and advanced skill compared to the source code, is increasing. In this study, we described a method for analyzing the similarity of functional units in the assembly language through the conversion of object code using the reverse engineering approach, such as the reverse assembly technique to the object code. The instruction and operand table for comparing the similarity is generated by using the syntax analysis of the code in assembly language, and a tool for detecting the similarity is designed.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06a
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• pp.131-133
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• 2012

본 연구에서는 컴퓨터의 개념을 학부 신입생 교육과정에서 쉽게 이해할 수 있도록 ARM 명령어 집합의 부분 집합을 정의하고, 어셈블리 언어 코드를 입력받아 실행하는 가상 머신을 설계하고 구현하였다. 기존 교육 과정의 컴퓨터 구조 과목에서 다루는 어셈블리 언어는 실제의 머신을 기반으로 하기 때문에 개념을 학습하는데 있어서 불필요하게 복잡하다는 단점이 있다. 하지만 본 연구에서는 교육에 필요한 내용만을 포함한 가상 머신을 새롭게 정의함으로써 좀 더 우아한 방법으로 컴퓨터의 개념을 이해할 수 있도록 하였다. 특히 어셈블리 언어 학습을 통해서 컴퓨터 구조와 고급 언어 간의 상호작용을 이해하는데 도움이 될 수 있다. 제안한 가상 머신은 자바로 구현하였으며, 스캐너 및 파서를 구현하기 위해서 오픈소스 컴파일러-컴파일러 시스템을 사용하였다. 해당 가상 머신은 공과대학 학부 신입생을 위한 실습 프로그램으로 사용되었으며 컴퓨터 개념의 이해를 돕는데 유의미한 기여를 하였다.

• Journal of the Korea Society of Computer and Information
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• v.25 no.8
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• pp.1-8
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• 2020

In this paper, we propose a gene family based RNA-seq read distribution method in means to accelerate the overal transcriptome assembly computation time. To measure the performance of our transcriptome sequence data distribution method, we evaluated the performance by testing four types of data sets of the Arabidopsis thaliana genome (Whole Unclassified Reads, Family-Classified Reads, Model-Classified Reads, and Randomly Classified Reads). As a result of de novo transcript assembly in distributed nodes using model classification data, the generated gene contigs matched 95% compared to the contig generated by WUR, and the execution time was reduced by 4.2 times compared to a single node environment using the same resources.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.32 no.10
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• pp.28-32
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• 2014

• Electrical & Electronic Materials
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• v.29 no.5
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• pp.3-10
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• 2016

• CDE review
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• v.20 no.1
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• pp.2-7
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• 2014

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.11a
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• pp.633-634
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• 2010