Patent ID: 11911863
Assignee: CREATIVE TECHNOLOGY LTD
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. An attachment and detachment device enabling suction and separation of a workpiece, the device comprising:
a machinable ceramic layer;
an adhesion activating layer provided on the machinable ceramic layer;
an electrode layer provided on the adhesion activating layer; and
a dielectric layer provided on the electrode layer, wherein
the machinable ceramic layer comprises a machinable ceramic containing SiO2,
the adhesion activating layer comprises a ceramic sprayed film containing an aluminum oxide,
the electrode layer is covered with the adhesion activating layer and the dielectric layer,
the dielectric layer has a volume resistivity at room temperature of 109 to 1012 Ω·cm, and
the adhesion activating layer has a volume resistivity at room temperature of 109 to 1012 Ω·cm or 1014 to 1016 Ω·cm.