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[December 2008]
KEMET Offers Flex-Robust Large Case Size Ceramic Chips to Reduce Cracking
KEMET Corporation (Greenville, SC, USA) now offers Flexible Termination (FT-CAP) in case sizes from 1808 through to 2225 in X7R dielectric.
"Larger case size ceramic chips can be vulnerable to cracking due to shear stresses that may be produced during board assembly and handling. The flexible termination solution now offered by KEMET on our larger case size MLCC's minimises cracking during product assembly and adds to our flexible termination portfolio," stated Corey Antoniades, Associate Technical Marketing Manager for KEMET. "This has been an issue in the past, so these new products offer our customers a valuable flex mitigation solution."
Flexible terminations add pliability to the end termination, minimising the transfer of board flex stress to the component body. The FT-CAP is a surface mount multi-layer ceramic capacitor that incorporates a unique and flexible termination system. Integrated with KEMET's standard termination materials, a conductive epoxy is placed between the conductive metallisation and nickel barrier finish, establishing pliability while maintaining terminal strength, solderability and electrical performance.
This technology directs board flex stress away from the ceramic body and into the termination area. As a result, this termination system mitigates the risk of low-IR or short-circuit failures associated with component cracking due to board flex. The FT-CAP complements KEMET's ‘Open Mode’, ‘Floating Electrode (FE-CAP)’ and ‘Flexible Termination w/Floating Electrode (FF-CAP)’ product lines by providing its customers with a complete portfolio of flex solutions.
ENDS