Ceramic is embedded closely to core to prolong service life of magnetic head substantially.
6.4 million passes were achieved (in laboratory).
UTILITY MODEL: ZL03204682.0 _ China
Exit of signals is built inside structure of magnetic head and connected to meshed FPC layers (double/triple layers) to prevent from extracting signal data in malicious manner.
PATENT: 4342582 _ Japan
101295511 B _ China
7699225 B2 _ USA
A magnetic head is covered by another case. An IC with encryption function is surface-mounted on a circuit board or FPC, which is then sealed by bonding resin.
PATENT: 101131593 B1 _ Korea