Abstract: An electronic device includes a circuit board. The circuit board includes a power amplifier footprint configured for mounting a first power amplifier or a second power amplifier thereon. The power amplifier footprint includes a first part and a second part. The first part includes multiple I/O pads. When the first power amplifier is mounted on the circuit board, the I/O pads in the first part are coupled to the first power amplifier. The second part includes multiple I/O pads. When the second power amplifier is mounted on the circuit board, both the I/O pads in the first part and the I/O pads in the second part are coupled to the second power amplifier.

Abstract: A uniform aerosol deposit sampling device includes a first housing and a second housing. The first housing has an air inlet and a first chamber. The second housing has an air outlet, an second chamber, a filter holder and a flow guiding portion. The filter holder is provided for securing an air-penetratable supporting pad and a filter media. The flow guiding portion is a substantially conical and gradually narrowing. The flow guiding portion has a semi-conical angle ranged from 15 to 85 degrees. So, the flow guiding portion makes the entire air flow smooth and evenly distributed. The aerosols will be evenly distributed and uniformly deposited on the filter media. And, it is easy to evaluate the amount and composition of the aerosols.

Abstract: A method for converting a data file into a writer file for a mask writer is provided. A plurality of sub-files is created from the data file. The plurality of sub-files is transferred to the mask writer. A plurality of writer files is created from the plurality of sub-files at the mask writer. The transferring the plurality of sub-files to the mask writer, creating a plurality of writer files from the plurality of sub-files at the mask writer, and checking the plurality of transferred sub-files at the mask writer are executed in parallel in a single process.

Abstract: A method for converting a data file into a writer file for a mask writer is provided. A plurality of sub-files is created from the data file. The plurality of sub-files is transferred to the mask writer. A plurality of writer files is created from the plurality of sub-files at the mask writer. The transferring the plurality of sub-files to the mask writer, creating a plurality of writer files from the plurality of sub-files at the mask writer, and checking the plurality of transferred sub-files at the mask writer are executed in parallel in a single process.

Abstract: A uniform aerosol deposit sampling device includes a first housing and a second housing. The first housing has an air inlet and a first chamber. The second housing has an air outlet, an second chamber, a filter holder and a flow guiding portion. The filter holder is provided for securing an air-penetratable supporting pad and a filter media. The flow guiding portion is a substantially conical and gradually narrowing. The flow guiding portion has a semi-conical angle ranged from 15 to 85 degrees. So, the flow guiding portion makes the entire air flow smooth and evenly distributed. The aerosols will be evenly distributed and uniformly deposited on the filter media. And, it is easy to evaluate the amount and composition of the aerosols.