Some of the benefits of silver loaded glass compared with polymer die attach materials, gold-silicon eutectic scrub, or gold-tin solder include:
- No gold preform handling, cutting, placing or loss; no problems from impurities during storage
- Lower temperature die attach. Since silver glass can be processed as low as 350°C it can be used to process heat-sensitive die at temperatures lower than silicon/gold eutectic attachment. The silicon/gold eutectic is 363°C with processing generally occurring at temperatures in excess of 400°C
- No die scrubbing is necessary with die attach performed at room temperature
- The material is simple to use with no refrigeration required
- Better location of die; eliminating inaccuracies due to die scrub
- Insensitive to back-side die conditions (unlike silicon/gold eutectic, silver glass shear strengths are not affected by oxidation)
- No sacrifice in reliability
- High temperature durability
- Thermal stress and thermal resistance as good or better than silicon/gold
Also see What is silver loaded glass?