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Die Attachment
Snap / Fast Cure

Adhesive Details


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5 mL Syringe, Price: $149.00
10 mL Syringe, Price: $298.00
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USG663 is a snap cure, electrically conductive adhesive with an exceptionally fast cure speed (e.g. 15 seconds at 180C). It can be cured in standard soldering reflow process. It is silver-filled one component with long work life at room temperature. After being cured it forms a structural bonding adhesive with superior electrical and thermal conductivity. USG663 is a replacement of regular solder for Pb-free solutions. While it forms bonds at temperatures lower than regular soldering, it can also provide finer pitches for electronic assembly. USG663 is dispensable and printable.

Special Features and Benefits
• Exceptionally fast cure speed
• High electrical conductivity
• Strong bonding strength
• High thermal conductivity
• High temperature stability
• Effective EMI / RFI shielding
• Low bleeding, low volatile

Typical Applications
• Die attach / chip bonding.
• Lead terminations and printed circuit
• Solder replacement as Pb-free solutions
• Conductive coating
• EMI / RFI shielding
• Shielding for aerospace electronics
• Medical Equipment
• Semiconductor and Telecommunications

Click here to view the Technical Datasheet (TDS) of this product in details (PDF File) »

Processing Instruction

USG663 is recommended to store in refrigerator (e.g. < 4 °C). Before apply it, please let it thaw completely at room temperature. This typically takes about 10 min for syringes and 30 min for jars.

For thin coating application, in order to get best result, USG663 may be diluted using a solvent, e.g. isopropyl alcohol.

We recommend running preliminary tests to optimize conditions for the particular application. Comprehensive processing instructions can be obtained by contacting directly to

USG663 has a shelf life of at least 6 months when stored at room temperature, or 12 months at 4°C refrigerator 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.

Safety information
Comprehensive instructions are given in the corresponding Material Safety Data Sheets. They are available on request from

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

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