Patent ID: 7659132
Filing Date: 2010-02-09
Classification: B25B,H01L

Abstract:
1. A method of manufacturing an acceleration sensor comprising: providing a collet which can apply a negative pressure, the collet having a protrusion extending from a main body of the collet such that the protrusion defines a chip-holding surface of the collet, and a plurality of suction holes being formed in the protrusion such that the plurality of suction holes are opened in the chip-holding surface; providing a wafer having a plurality of acceleration sensor chips; cutting an acceleration sensor chip from the wafer; and lifting the acceleration sensor chip which has been cut from the wafer, by using the collet which applies the negative pressure onto the acceleration sensor chip concerned, wherein the acceleration sensor chip includes a frame portion, a plurality of flexible arm portions extending inward from the frame portion and a weight portion supported by the plurality of flexible arm portions, and the collet applies the negative pressure to the frame portion, the plurality of flexible arm portions and/or weight portion.