USG619 is a one component, anisotropic, electrically conductive epoxy adhesive designed for electronic applications. After a rapid snap-cure at elevated temperatures in seconds with thermo-compression, it forms a structural bonding adhesive with conductivity only in z-direction while remaining insulators in the x,y-plane. This is achieved with a delicate formulation of electrically conductive filler in the adhesive matrix. USG619 is designed for flexible circuit applications, flip chip attachment, and fine pitch assembly. USG619 is dispensable and printable.
Special Features and Benefits
• Anisotropic electrical conductivity (z-direction)
• Extremely rapid cure at elevated temperature
• Long pot life in room temperature
• Strong bonding strength
• High temperature stability
• Low bleeding, low volatile
• Flip Chip Interconnection (COB, COG, smart card, etc.)
• TAB interconnections
• Lead terminations and connections
• Fine pitch assemblies for electronics
• Flat panel displays, camera modules, mobile phones, and direct access sensors
• Semiconductor packages and RFID tags
• Automotive electronics
Click here to view the Technical Datasheet (TDS) of this product in details (PDF File) »
The z-direction electrical conductivity is based on the contact of the conductive filler with substrate and bump. Heat and pressure are used to trap the conductive particles between bumps and pads of the substrates. Recommended temperature is +150C to +210C. Pressing time at 190C is ~ 5 seconds.
We recommend running preliminary tests to optimize the conditions of heating temperature and compressing pressure for the particular application. Comprehensive processing instructions can be obtained by contacting directly to USGlue.com.
USG619 has a shelf life of at least one year when stored at -18°C freezer in the originally sealed container. The 'Best use before end' date of each batch appears on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Comprehensive instructions are given in the corresponding Material Safety Data Sheets. They are available on request from USGlue.com.
The data presented in this leaflet are in accordance with the present state of our knowledge, but do not absolve the user from carefully checking all supplies immediately on receipt. We reserve the right to alter product constants within the scope of technical progress or new developments. The recommendations made in this leaflet should be checked by preliminary trials because of conditions during processing over which we have no control, especially where other companies’ raw materials are also being used. The recommendations do not absolve the user from the obligation of investigating the possibility of infringement of third parties’ rights and, if necessary, clarifying the position. Recommendations for use do not constitute a warranty, either express or implied, of the fitness or suitability of the products for a particular purpose. For technical, quality, or product safety questions, please contact directly to USGlue.com.