Growing Market Opportunities in High Density PCBs

Posted by PARTIK on June 2nd, 2016

In the massive market of PCBs, the newly emerged hi-tech variant is High-Density Interconnector, with claims of a higher wiring density in per unit area compared to traditional PCBs.

What makes them hi-tech are fine lines, spaces, smaller vias and capture pads with higher connection pad density. The HDI PCB with its reduced size and weight enhances electrical performance of the device.

They have Micro via and buried Vias with sequential lamination as the best alternative to high layer-count and expensive lamination.

The advantages with HDI PCB are small size, high speed, and high frequency. They have already invaded personal computers, portable computers, mobile phones and personal digital assistants as the core component.

Since 2006, HDI PCBs in notebooks are real trend setters.

The design and manufacturing of a printed circuit board (PCB) are most critical as far as the main circuit is concerned. With rising speeds and shrinking printed circuit board geometries, high density interconnect (HDI) are becoming commonplace PCBs.

But there is a mistake of people treating HDI and micro vias as just another hole in the board focusing on ways to increase reliability while minimizing fabrication costs. By leveraging fine geometry technologies, companies can gain significant performance benefits without sacrificing reliability or high price premiums.

“If you tackle these boards like conventional multilayer boards, you’ll lose half the benefits. I’ll go into eight essential design elements used in HDI that is not part of through holes,” Holden said.

High-reliability and high layer count PCBs have applications on a range of cutting-edge ICT devices to social infrastructure and industrial equipment.

In PCBs, manufacturers specialize in different types of products such as flexible, rigid, flex-rigid.

As we know, flexible PCB manufacturer assembles circuits on a thin, flexible insulating material and allow PCB to bend and curve without damage to the circuit or insulating material.

They are used in medical equipment, flexible heaters, or even equipment such as hearing aids. The printed circuit board manufacturing can involve a vast range--from single layer to eight or more layers.

Depending on the complexity, PCBs can go from single to 42 layers in highly sophisticated circuitry. Different applications need different types of PCBs.

Rigid PCBs find use in consumer electronic items such as computers, televisions, mobile phones and so on.

But rigid PCBs when stretched beyond limits can crack or break. The rigid-flex variety is a combination of rigid and flexible PCBs and is used mostly in aerospace and military applications where dense circuits are the norm.


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