A thin line of solder mask drawn between the solder pad and the via acts as a solder dam, preventing the solder from moving to the via. If you apply the inert coating before soldering, it is usually ...

As a result, routing at the substrate top layer is protected by a weaker organic material like the solder mask, which acts as the last line of defense against displacement stresses generated during ...

Designers of miniLED BLU (backlight units) devices typically require that the substrates manufactured by their supply chain will be covered with white solder mask, which has a very high ...

The coverlay in the flex area serves the same functionality as the solder mask of the rigid section. A liquid photo imageable (LPI) solder mask is widely used in rigid-flex PCB fabrication. Four Rigid ...

The real problems for FR4 lie within the resin-glass matrix beneath the coloured solder-mask. The substrate most people would want for electronic circuits is an ideal insulator – and FR4 is some way ...

LG Innotek said Wednesday it has developed a next-generation semiconductor substrate technology that can reduce smartphone thickness while ... While a denser solder ball layout can enhance ...

Conventionally, solder balls were attached directly to the semiconductor substrate in order to connect to the mainboard. The solder balls had to be of a sufficient size to ensure a stable ...