TECASINT 4111 natural
unfilled polyimide
Compared with the other TECASINT materials the TECASINT 4100 series exhibits extremely high thermal stability, extremely low moisture absorption and high mechanical rigidity. This is accompanied by a very high oxidative stability and increased resistance to chemicals. TECASINT 4111 natural has a very high thermal stability (HDT/A=470 °C). Rigidity and modulus are significantly increased in relation to conventional polyimides in a temperature range up to 400 °C. This polyimide material also provides high thermal and electrical insulation and offers high purity with low outgassing in accordance with ESA regulation ECSS-Q-70-02.
TECASINT 4111 natural is included in Ensinger's semiconductor grade portfolio, that is produced with stringent contamination controls, and offering copy-exact compliance. Thus, Ensinger ensures the highest level of cleanliness and quality performance consistency of this unique property profile. TECASINT 4111 natural is often used in IC test sockets and electronic fixtures due to its excellent dimensional stability and micro machinability of tight tolerances.
The high level of stiffness with flexural modulus up to 6100 MPa and elongation down to 1.7 % achieved without reinforcing fillers allows for optimum bending resistance, minimum burr formation, and highest machining accuracy. Offering the lowest level of water absorption among different polyimide grades and very low CLTE compared to industry standard test socket materials, TECASINT 4111 natural can maintain high levels of dimensional stability during machining and after prolonged use. This PI plastic is also often used in semiconductor manufacturing equipment parts such as in plasma etching vacuum chambers due to its very low level of outgassing, superior plasma resistance, and temperature resistance.
As with all Ensinger semiconductor grade materials, we can confirm that TECASINT 4111 natural meets the limitations imposed by RoHS Directive 2011/65/EU Restriction of Hazardous Substances in electrical equipment, and can also provide further conformity declarations on request.