Semiconductor Group

IC Packaging and Testing

OSE combines over 35 years' experience with unrivaled R&D to deliver the latest solutions to customers worldwide.

From leadframe carriers to CSP and flash memory cards, OSE leads the market in packaging innovation.

Find out more about our IC packaging and testing offerings:



OSE is also a world leading Flash Memory Card Manufacturer for OEM customers with monthly shipment around 15 million pices of Flash Memory Cards.

EMS Group

Electronics Contract Manufacturing Services (EMS)

From prototyping and NPI to high-mix manufacturing, OSE helps our customers achieve the competitive advantage they're looking for.

We will optimize your logistics, drive down your cost, and eagerly help you break new barriers.

Find out more about our EMS/CEM offerings:


OSE has been ranked as one of the world top 50 EMS vendors in 2012 by MMI. OSE is also one of the top three High-Mix Electronics Contract Manufacturing Services (EMS) vendor in the world.

ISO 9001, ISO 13485, ISO 14001 Certified. TAA compliant for US Government Contracts

Taiwan has been a TAA-compliant country since August 2009, allowing OSE Taiwan to provide offshore Electronics Contract Manufacturing Services for fulfilling US government contracts.

About OSE

Established in 1971, OSE has been committed to providing a broad range of high value-added IC packaging and testing services and Electronics Manufacturing Services (EMS/CEM), enabling customers to maximize and optimize their resources and apply their core strengths in research and development (R&D), design, and marketing.

OSE Electronics Manufacturing Services (EMS) Group provides global EMS services. We have manufacturing facilities in US, Taiwan and China for meeting different requirements from our customers. Our US partrner (Sparqtron) provides quick-turn prototyping and NPI to expedite the time-to-market of your new product development. Our Taiwan and China facility help you being competitive in volume product shipment.

OSE Semiconductor Group has manufacturing facilities in Taiwan. We have US sales offices in Beverly, MA, Gilbert, AZ and San Jose, CA.