Cross- sectioned ceramic capacitors were metallographic prepared in ALTER TECHNOLOGY Materials & Processes Laboratory, recognized as a recommended facility for such activity by ESA authority (MEMO ESA-TECMSP-MO-013165).
Sample & Method
Ceramic capacitors assembled using different techniques have been submitted to the verification programme defined by ECSS-Q-ST-70-38C Rev.1. Metallographic analysis allows us to check the status of such devices after performing environmental tests (Vibration & Thermal Cycling).
Remark
Ceramic capacitors assembled using the soldering process I presented a good internal structure. No evidences of crack on the ceramic body nor delamination were observed. On the contrary, ceramic capacitors assembled using process II showed a crack on the active area of the device. According to ECSS-Q-ST-70-38C Rev.1 clause 14.10.k, this crack is identified as a verification failure.
Contact us for more information
She is responsible for the Materials & Process Laboratory of Alter Technology. Her work is focused on investigating the effects of the environment on electrical components, materials, and processes. As the head of the laboratory, she also manages the studies conducted to evaluate the quality of a bare or assembled printed circuit board in relation to ECSS standards or according to the customer’s specifications.
- MacroVoids in assembled BGA packages - 14th August 2019
- Microsection Inspection / Constructional Analysis - 23rd July 2019
- Microsection Inspection / Failure Analysis - 19th July 2019
