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| Foundation | 1988 |
| Founder | Raymond Dietz |
| Stronghold | Located in Byfield, Massachusetts, 30 miles north of Boston |
| Business | Diemat specializes in the development and manufacturing of innovative adhesive and sealing materials to serve the electronic packaging industry. As a technology driven company, only patentable products are marketed. This group has developed a broad range of unique products, none of which have equivalents on the market. |
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| 1988 | Diemat, Inc. was founded in 1988 by Raymond Dietz |
| 1993 | Developed a lower temperature (300°C) Ag loaded glass adhesive for die attachment. |
| 1995 | Patented a thermoplastic Ag adhesives offering thermal conductivity that is an order of magnitude greater than the prior art. |
| 2003 | Developed a low temperature, solder-glass preform for hermetically sealing optical fibers in optoelectronic packages. |
| 2008 | Diemat was acquired by Namics Corporation. |