We create the future that
is much better than today.
Laser Diode that is produced by superb
competitiveness & high technical skills.
We will become a leading company
that grows with our customers.
We promise that we will keep moving
forward to become a global leader.
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Despite the remarkable growth and development of photonic semiconductor industry,
the Republic of Korea has fully imported the core component ‘laser diode’ due to a high
To overcome this disadvantage and make a contribution to the improvement of national competitiveness, the professional laser diode manufacturer ‘QSI CO., LTD.’ was founded in July 2000 by the nation’s best photonic semiconductor engineers.
Based on extensive knowhow and experiences, advanced product design capability and state-of-the-art manufacturing facilities which can handle EPI, FAB and PKG, we have promptly responded to our client’s needs and demand and earned a great reputation from the world.
All of us will do our best to promote our company as the world’s best, based on its speedy management and R&D capacity and our slogan, “For a better future than today.”
We will always try to be the company that strives to meet customer satisfaction, create customer value, and grow with its customers.
CEO of QSI Co., Ltd. Cheong-Dai Lee