A lock assembly and locking systems adapted for use with hinged bidirectional hardened plastic doors is provided. The touch panel includes a panel, a control module having an analog-to-digital converter and a delay buffer, and a processor, the delay buffer able to buffer a trigger signal for interrupting the processor. The isotropic dry etching process may utilize a process gas including main etching gas and selectivity adjusting gas. A first power ring and a second power ring are disposed on the first chip, wherein the first and second power rings are respectively electrically connected to the first and second power bonding pads. The present invention also relates to a method of inspection of unknown defects in web materials.