Samsung Electronics Co., Ltd.

Tae-Hun Lee

Jung Hyun Kim

Byung-jun Park

Jin-Ho Lim

Seung-Hun Shin

Jae-Hyon Roh

Kyoung-Heun Shin

A device for improving the use efficiency of a content delivery network (CDN) service and an operating method of a service distribution device are provided. The operating method includes receiving a service request signal from one or more electronic devices, determining an available domain for the service request signal based on the amount of idle traffic of one or more service domains in response to the reception of the service request signal, and transmitting a service response signal that includes the available domain information to the one or more electronic devices.

Method for providing content delivery network service and electronic device thereof

In a method of manufacturing a complementary metal-oxide semiconductor (CMOS) image sensor (CIS), an epitaxial layer may be formed on a first substrate including a chip area and a scribe lane area. A first impurity layer may be formed adjacent to the first substrate by implanting first impurities into the epitaxial layer. A photodiode may be formed in the epitaxial layer on the chip area. A circuit element electrically connected to the photodiode may be formed on the epitaxial layer. A protective layer protecting the circuit element may be formed on the epitaxial layer. A second substrate may be attached onto the protective layer. The first substrate may be removed to expose the epitaxial layer. A color filter layer may be formed on the exposed epitaxial layer using the first impurity layer as an alignment key. A microlens may be formed over the color filter layer.

Method of manufacturing a CMOS image sensor

A semiconductor device includes a pull-up unit pulling up a voltage of an output node to a first voltage in response to a control signal, a photo sensing unit pulling down a voltage of the output node to a second voltage in response to an incident light, and a CPU, the CPU reset in response to the voltage of the output node produced in response to the incident light.

Growing community of inventors

Seoul, South Korea

Tae-Hun Lee