Patent ID: 6612900
Filing Date: 2003-09-02
Classification: B24B,H01L

Abstract:
An apparatus for transmitting signals from a planarizing device, the planarizing device having a support, a platen assembly connected to the support, and a carrier movable relative to the platen assembly and the support to remove material from a semiconductor substrate positioned between the carrier and the platen assembly, the apparatus comprising:a first sensor being a force sensor coupled to the carrier, the carrier being further comprised of a mounting member removably coupled to the support structure, and an engaging member to engage the semiconductor substrate, the force sensor being connected between the mounting member and the engaging member to generate a signal corresponding to a force transmitted therebetween; a second sensor connected to the semiconductor substrate, wherein the semiconductor substrate has a conductive material on a surface thereof and the second sensor includes an ohm meter, adjacent to the force sensor, coupled to the conductive material to detect a change signal in resistance of the conductive material when a portion of the conductive material is removed during planarization of the semiconductor substrate a display spaced apart from the first and second sensors; and a wireless communication link coupled between the first and second sensors and the display to transmit the signals from the first and second sensors to the display.