Junho Choi Email & Phone Number

Covington, Ga, Us

United States

LED NPI BUILDS FROM THE EARLY STAGES OF DEVELOPMENT. POSSESS EXTENSIVE KNOWLEDGE AND EXPERIENCE IN TECHNICAL ACCOUNT MANAGEMENT AND TECHNICAL PROGRAM MANAGEMENT FOR GLOBAL LEADING MOBILE COMPANY IN U.S. • Led the development of new concept of programs to bring-up new technologies for mmWave antenna substrates / RF module solutions • Acted as the local Engineering program manager from the early development phase• Analyzed market intelligence and technical trends in the semiconductor industry and its value chain• Conducted technical promotions for SiP, FC-CSP, and FC-BGA to introduce advanced technologies to major tech companies in bay area

Seoul, South Korea

LED ENGINEERINGS FOR MMWAVE ANTENNA SUBSTRATE & MODULE DEVELOPMENT• Led coordinated efforts and co-development with cross-functional teams and client engineering teams from the early stages of development, supporting new design rules, stack-up, process optimization, RF simulation, and functional measurement• Resolved multiple technical issues quickly and accurately through clear communication with EE, DFM, and RF engineers of client• World Firstly introduced High Dk Materials to enhance Antenna performance keeping the same size of mmWave antenna patch by optimizing process conditions• Generated additional sales revenue of over $250M until 2022 by providing successful ramp-up support, ensuring stable yield and quality since 2020

Seoul, South Korea

TECHNICAL ACCOUNT MANAGER FOR TOUCH WINDOW, RIGID FLEX PCB• Technical communications and coordination led to the development of a new touch window. Successfully managed the program and secured ongoing program engagement, resulting in a 50% increase in net sales• Served as the main engineering program manager for developing POLED rigid flex PCB for mobile Phone, achieving over 80% yield during the 6-month NPI phase in 2017• Facilitated a new capacity ramp-up for new concept of rigid flex PCB through strategic commercial negotiations, leading to a 35% increase in sales revenue in 2018

Osan, Gyeonggi, South Korea

• Optimized process parameters for PSR (Photo-Imageable Solder Resist) and surface treatment• Troubleshot abnormal process and production issues technically and statistically using short loop and full loop Design of Experiments (DoE)• Conducted design reviews for Design for Manufacturing (DFM)• Oversaw the installation of new process lines and equipment for PSR processes• Served as the main counterpart for client’s quality audits and effectively resolved major action items• Conducted quality audits for material and process vendors as an appointed auditor• Successfully developed and scaled high-volume manufacturing of new substrate structures, including Rigid Flex PCB for tablet, laptop in 2014, optimizing cavity structures as a world first