Asahi Kasei Unveils Photosensitive Polyimide Film for Panel-Level Semiconductor Packaging

  • Asahi Kasei has developed a novel photosensitive polyimide (PSPI) film combining features of its PIMEL™ liquid PSPI and SUNFORT™ dry film photoresist.
  • The film is designed to improve productivity in semiconductor packaging by enabling uniform application to large square panels and accommodating more insulating layers.
  • Commercial availability is expected in the near future, with the film currently under customer evaluation.
  • The film is expected to be applied to redistribution layers for semiconductor packaging and insulating layers for package substrates.
  • Asahi Kasei is also developing solutions combining the PSPI film with the SUNFORT™ CX series for high-aspect-ratio copper pillars in 3D semiconductor packaging.

Asahi Kasei's new photosensitive polyimide film targets the growing demand for advanced semiconductor packaging, particularly in AI data centers where higher density and larger interposers are required. The shift from wafer-level to panel-level packaging, along with the increasing complexity of 3D semiconductor designs, underscores the strategic importance of this development. The film's ability to improve productivity and yield positions Asahi Kasei to capitalize on the evolving needs of the semiconductor industry.

Market Adoption
The pace at which semiconductor manufacturers adopt the new PSPI film will determine its impact on industry productivity and yield.
Technological Integration
How effectively Asahi Kasei integrates the PSPI film with existing semiconductor packaging processes will affect its market penetration.
Competitive Positioning
Whether Asahi Kasei can maintain its competitive edge in the semiconductor materials space amid rising demand for advanced packaging solutions.