Electronics that keep getting smaller

Smaller, lighter and denser products require boards that fit more into less space. That is where HDI (high-density interconnect), miniaturization and rigid-flex circuits come in. VRI Indústria Eletrônica, which assembles advanced packages and works with flexible circuits, follows this trend closely.

What each one is

• - HDI (High-Density Interconnect) — uses microvias, finer traces and more

layers to pack more circuit into less area

• - Miniaturization — increasingly smaller components and packages (fine pitch,

BGA)

• - Rigid-flex — combines rigid and flexible sections in a single board,

eliminating connectors and cables in compact products

When it is worth it

| Situation | Recommended technology | | -------- | ------------------- | | Critical space (wearable, medical) | HDI + miniaturization | | Bends and non-flat shapes | Rigid-flex / flexible circuit | | Many high-speed signals | HDI with impedance control | | Product subject to vibration | Rigid-flex (fewer connectors = fewer failures) |

What that demands from assembly

Denser boards call for a more precise process: fine pitch and BGA placement, tight solder control and rigorous inspection. It is not enough for the board to be HDI — the assembly must keep up.

<Callout type="info"> Miniaturizing without a matching process trades one problem for another: the board fits, but reliability drops. Density demands process control. </Callout>

VRI's role

VRI assembles BGA and fine pitch with AOI and process control, and works with flexible circuits, on top of an ISO 9001 and ISO 13485 quality system. {/* CONFIRMAR: capacidade exata de HDI/rigid-flex (camadas, classe de pitch, se faz o PCB HDI internamente) */}

Conclusion

HDI, miniaturization and rigid-flex open the door to smaller, more robust products — as long as the assembly keeps up with the density.

Have a compact or flexible project? Talk to our sales team.