Routing Digital Boards to Avoid Problems

There are many ways to route a PCB, some much more effective for signals than others. The first design rule is that the board must work properly, so it is important to have a plan that addresses... [more]

PCB Design and Assembly Process Strategy for High Density CSP, WLP, 2D and 3D Semiconductor Package Technology

Topics covered: 1. BGA/CSP process technologies and standards; single die BGA and FBGA packaging, flip-chip and die-size package technologies, wafer level packaging (WLP), fan-out wafer-level... [more]

Causes of Signal Degradation in PCB Transmission Lines

Signal degradation on PCB transmission lines manifests in many forms: undershoot, overshoot, ringing, pulse shape distortion, switching noise, attenuation, ground bounce, skew, etc. All these can be... [more]

Materials of Flex Circuits: Specifications and Applications

Materials of Flex Circuits: Specifications and Applications covers the following: Coverlays, cores, bond plies, adhesives and their suppliers  Flex layer processing and stackup Polyimides... [more]