Challenging development
of substrates with cavities

The introduction of substrate has

  • Achieved smaller and denser substrates with cavities.
  • Expanded mounting options by improving design margin.

Background of development

Cavity substrate for even higher processing precision and design margin

Background of development

Cavities in substrates are created by carving a stepped area around a hole. There have been many cases of forming cavities in strong and easy-to-process ceramic substrates, but this was generally not applied to thinner substrates.
But in the modern society where electronics devices need more functionality in a smaller size, the required board complexity continues to increase. In order to give our customers more design margin in their product development, we set out to develop a cavity process for substrates.

Problems and solutions

The precision needed to make complex cavities was a hurdle

Problems and solutions

The issue was the difficulty of forming a cavity structure in a substrate. Because substrates are usually made by stacking extremely thin internal circuit layers, even the slightest lack of precision makes it impossible to make cavities. In order to make cavities, it was necessary to completely revise the design rules and production process.
The unprecedented level of required precision in dimensions and process made development extremely difficult.

Employing our specialized technology to clear the hurdles and achieve compactness and multi functionality

Problems and solutions

Substrates with cavities were realized by a fusion of a variety of substrate processing and materials technologies. Cavities that appear smooth even under a microscope are the product of a combination of specialty elemental technologies and processes developed over many years of close cooperation with our customers.

Substrates make 3D structures possible
Helping customers make their products more compact

Problems and solutions

Cavities have improved design margin, which in turn has allowed for further module miniaturization and increased functionality. This is the development story of the substrates that have answered the customers’ demands for “smaller” and “high precision” in their modules, sensors, LEDs and other products.

Other development stories

Surface mount-capable substrate for smaller smartphones and more circuit design margin

  • #Thin build up substrate
  • #Smartphones

No restrictions on the form of the customer’s development A new board-to-board connected PWB

  • #Board to board connected PWB
  • #Probe cards, IC testers

Substrates with copper bumps reduced module size

  • #Multi chip module substrate
  • #Module substrates

Products

Products

We have a broad variety of high-feature substrate and printed wiring boards.
Let us produce substrates for you that match your desired material, application and design.

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