Financial news on January 15, 2024, according to the announcement of the State Intellectual Property Office, Shenzhen Mingyang Electric Road Technology Co., Ltd. has obtained a project entitled "a high-end service printed circuit board production process and printed circuit Board", authorized announcement number CN117042338B, the application date is October 2023.
The patent abstract shows that the invention relates to the technical field of PCB board production, in particular to a printed circuit board production process for a high-end server and a printed circuit board, which adopts a negative film process to process the andante electric and outer layer of the PCB board, and then tinning and back drilling of the PCB board in sequence; The tinning treatment comprises the following steps: injecting tinning liquid into the compressed gas so that the particle size of the tinning liquid is dispersed and refined in the compressed gas; The PCB board is tin soaked, and then the PCB board is placed horizontally, and the drilling on the PCB board is sprayed with refined tin solution. The printed circuit board production process for the high-end server can tin the PCB board with high longitudinal ratio at low cost and high efficiency, and can stably ensure that the drilling of the PCB board with high longitudinal ratio uniformly deposits the required tin layer.
This article is from: Finance
Author: Intelligence Officer
