Summary

Overview

Work History

Education

Skills

Software

Certification

Accomplishments

CERTIFICATIONS(ENG)

Military Service

Timeline

Jungmin Yim

Field Service Engineer Candidate

Seoul

Summary

Field Service Engineer with experience in semiconductor equipment maintenance and manufacturing facility optimization. Performed preventive maintenance (including UHV tuning, sensor alignment, and critical component replacement) on batch LPCVD and ALD systems. Led field service report writing, SOP revisions, and inventory efficiency initiatives to reduce turnaround times and improve equipment availability. Also planned and validated various equipment investment reviews, field implementation of power systems and monitoring platforms, and integrated anomaly detection capabilities to support predictive maintenance strategies.

Overview

years of professional experience

Certifications

Work History

Preventive Maintenance Engineer

Hi-Tech Solution Co., Ltd.

02.2023 - 09.2024

Performed preventive maintenance(PM) on furnace batch-type LPCVD and ALD equipment used in the semiconductor diffusion process. Tasks included component replacement, actuator calibration, sensor alignment, and ultra-high vacuum(UHV) tuning to ensure optimal process stability.
Authored and submitted detailed PM field service reports, ensuring accurate logging of activities and anomaly records.
Contribute to revising and identifying improvements in SOP(Standard Operating Procedures) for existing and new equipment.
Optimize spare parts inventory management to reduce turnaround time and improve availability.
Proceed with mentoring for new employee training based on PM work case education.

Technology Team Staff

Dongwon Systems Corporation

12.2024 - 05.2025

Drafted investment proposals and technical reports to support decision-making on equipment installation and capital expenditures, with a focus on enhancing production efficiency and cost-effectiveness.
Evaluated and verified the field implementation of power supply systems and automated vision inspection equipment, ensuring technical feasibility and alignment with operational needs.
Planned the development of a power usage monitoring system integrated with anomaly detection to enable predictive maintenance and minimize unexpected downtime.

Education

Bachelor of Engineering - Electronic Engineering

Kyung Hee University

Yongin-si, Gyeonggi-do

04.2001 -

Skills

Semiconductor equipment PM

Breakdown trouble shooting

Equipment Calibration

Engineering tools and programming

Microsoft Office

Technical Reporting

Problem solving

Team collaboration

Communication between customers and partners

Flexible problem solving and adaptability

Software

Python

MATLAB

OrCAD PSpice

Silvaco TCAD

Certification

Engineer Electricity

Accomplishments

HTS -

Conducted monthly average of 40 PM and wafer teaching jobs on vertical batch-type Diffusion equipments (max 144/169 slots)
Achieved approximately 10% reduction in average task duration and 33% decrease in equipment downtime.
SOP Revision Detalis:

1. Measured R-axis motor and turn-table tilt after boat elevator part replacement to ensure optimal wafer leveling

2. Checked alignment between tube and shutter to prevent particle contamination on wafers

3. Introduced nozzle numbering to prevent errors during multi-nozzle replacement

4. Updated torque wrench calibration specifications to prevent thermocouple cracking

DWS -

Reviewed investment projects including transformer upgrades, vision inspection system installations, and solar power expansion by building technical relationships with global suppliers and validating field implementations.
Planned and designed a predictive maintenance system using energy usage visualization and anomaly detection, identifying potential cost savings of approximately KRW 44 million in platform and safety management expenses.

CERTIFICATIONS(ENG)

TOEIC - 835

11/2024

OPIc - IM1

09/2023

Military Service

Service Period : 09/2017 - 05/2019

Branch, Unit : Army, Radio operations

Final Rank : Sergeant

Reason for Exemption : None