Abstract: A multi-antenna channel device and a configuration method for the multi-antenna channel device are provided. The device includes: a main control chip and radio frequency chips, wherein the main control chip is connected to chip selection signal interfaces of the radio frequency chips via a shared chip selection signal line and is configured to send a chip selection signal to a target radio frequency chip; the main control chip is connected to clock signal interfaces of the radio frequency chips via a shared clock signal line and is configured to send a clock signal to the target radio frequency chip; and the main control chip is connected to data interfaces of the radio frequency chips via a shared data line and is configured to send target serial data to the target radio frequency chip or receive target serial data from the target radio frequency chip.

Abstract: Embodiments of apparatus and method for testing metal contamination are disclosed. In an example, an apparatus for testing metal contamination includes a chamber in which a test object is placed, a gas supply configured to supply nitrogen gas into the chamber, a pressure controller configured to apply a pressure of at least about 1 torr in the chamber, and a measurement unit configured to measure a concentration of a metal from the test object.

Abstract: Embodiments of apparatus and method for testing metal contamination are disclosed. In an example, an apparatus for testing metal contamination includes a chamber in which a test object is placed, a gas supply configured to supply nitrogen gas into the chamber, a pressure controller configured to apply a pressure of at least about 1 torr in the chamber, and a measurement unit configured to measure a concentration of a metal from the test object.