SSD Does DDR Design Need a Back Drill
harddriveSSD OEMSSD Back drill SSD, believe to engage in PCB design or processing friends will not be unfamiliar. We know that SSD, this process has now been widely used in the design of high-speed serial channels above 10G, its role is mainly to solve the problem of sharp attenuation of high-frequency energy caused by the long vias stub, the smaller the vias stub, the higher the frequency band of sharp attenuation, so we will focus on it in high-speed design. We can also obtain the relationship between stub and the back-loss insertion curve through 2-dimensional or 3-dimensional simulation of vias, as shown in the following figure:
