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PWB materials

A printed wiring board (PWB) is a board that configures the arrangement of its circuitry with conductive paste,or via a chemical method such as plating or etching a conductive circuit pattern onto an insulated substrate.

A PWB is mounted with semiconductors, condensers and other components and plays a vital role by electrically connecting each of these parts.

Types of PWB

Printed wiring boards are categorized by their shape and use as rigid boards, PKG boards, flexible printed circuit boards and build-up.

Rigid board materials

Products

Liquid

solder resist, legend ink,
plating resist, etching resist

Rigid board

A motherboard is a printed wiring board (PWB) made with a rigid insulated substrate. This single board, primarily installed inside electronic devices, is mounted with LSIs, resistors, condensers and other components. Legend ink, meanwhile, is printed onto a PWB to indicate the names and predetermined positions of the electronic components to be mounted.

Rigid board

PKG board materials

Products

Liquid Dry film

solder resist

PKG board

A type of printed wiring board used as an interposer when mounting semiconductors such as computer CPUs , smartphone AP or memory.

PKG board

Flexible printed circuit board materials

Products

Liquid Dry film

solder resist

Dry film

photoimageable coverlay

Flexible printed circuit board

A soft, flexible board made from polyester or polyimide film coated with copper foil.

Flexible printed circuit board

Build-up materials

Products

Liquid

hole-plugging material

Liquid Dry film

interlayer insulating material

Build-up

Build-up refers to a method of manufacturing heavily layered PWBs by alternately laminating insulated and conductive layers on a core board (or base board). The ink used to fill conductive holes in a core board is called hole-plugging ink. The laminated insulation is called interlayer insulation.

Build-up

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