SUMITOMO BAKELITE CO., LTD.
Fields of Applications
Semiconductors | Circuits & Electronic Components | Automotive | Medical & Lab-wares & Bio | Packaging | Highly Functional Products
NewAreas
Cell-phones | Optical | Displays | High Density Jisso
Functions
Heat resistance | Ecological | Metal substitutes | Impact resistance | Heat dissipation
Products

Semiconductor wafer coating resins SUMIRESIN EXCEL® CRC
Semiconductor wafer coating resins Top
Buffer coating resins
Rerouting resins

Resins for WLP rerouting
SUMIRESIN EXCEL® CRC-8600 SERIES
Contact
Electronic Materials Dept.,
IT Materials Div.
Tel. +81-3-5462-4017
Fax. +81-3-5462-4905
• High resolution
• Excellent adhesion (with UBM)
• Low water absorption ratio (0.9%)
• Environmental safety
• High solvent resistance

Representative grades [CRC-8600] [CRC-8650] and others
Applications
For rerouting and bumping of semiconductor wafer level packages.
Positive Photosensitive resin for rerouting
SUMIRESIN EXCEL® CRC-8600 SERIES
Features
* Adhesion (to substrate and metals)
* Free from copper migration
* High heat and chemical resistance
* High resolution
* Alkaline aqueous developable
* Excellent adhesion &compatibility for molding compounds to be cured
* Cost reduction
Example of Bump Rerouting by using CRC-8600 SERIES
Product wafer with Al pad and passivation patterned
CRC layer-1 pattern and curing
Rerouting metal sputtering and patterning
CRC layer-2 patterning and curing
UBM (under barrier metal) sputtering and patterning
Forming of bump
Micrograph
Download catalogs.
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