KURIMOTO Co-LAB English|Kneading, Grinding, Drying

EMC (Epoxy Molding Compound)

环氧模塑料 / Epoxidformmasse / 에폭시 몰딩 컴파운드

EMC (Epoxy Molding Compound)
Description of Final products

A thermosetting material used in semiconductor packages, mainly composed of epoxy resin, curing agents, and fillers, which provides electrical insulation from external environments and protects the device against moisture and mechanical shock.

Applications

Semiconductor encapsulation materials, automotive electronic components, smartphones, PCs, home appliances

Manufacturing process

※This process is just one example, and the manufacturing methods vary by company.

Raw materials to be processed
Mixing
The resin, curing agent, and filler are mixed using various types of mixers.
Kneading
The mixture is fed in precise quantities and kneaded.
課題

To prevent gel formation caused by excessive temperature rise during kneading, the product temperature must be controlled. In addition, the generation of metal contamination adversely affects the performance of the encapsulation material.

解決策

The twin-screw continuous kneader "KRC Kneader" suppresses the formation of gel particles and enables the production of uniform and stable products, while also offering excellent durability and ease of maintenance, by the following mechanical characteristics.

KRCニーダ ジャケット加熱

Removal of kneading heat by cooling through the jacketed barrel

KRCニーダ 両軸受構造

Metal contamination is minimized by the bearing structures installed at both ends of the paddle shaft.

KRCニーダ 耐摩耗材

Wetted parts are made of wear-resistant materials. And easy to replace.

Cooling
& crushing
The kneaded melt is formed into a thin sheet, cooled, and then coarsely crushed.
Granulating
& Particle size
adjustment
The material is granulated and classified to achieve the specified particle size.
課題

Excessive generation of fine powder during grinding or granulating adversely affects moldability in downstream processes. In addition, metal contamination caused by wear can negatively impact the performance of the encapsulation material.

解決策

The "Roll Granulator" suppresses the generation of fines and effectively reduces metal contamination by the following mechanical characteristics.

ロールグラニュレータ 多段式

The system can be configured as a multi-stage setup by combining multiple units.

ロールグラニュレータ ロール溝ピッチ調整

The generation of fine particles is suppressed by stepwise adjustment of the roll groove pitch.

ロールグラニュレータ 耐摩耗材

The rolls are made of wear-resistant materials, thereby minimizing metal contamination.

Tableting
& forming
The material is compressed and formed into tablet-shaped products.
Finished products