Patent ID: 9310429
Filing Date: 2016-04-12
CPC Classification: G01R

Claim Text:
1. An apparatus for probing a wafer or a portion of the wafer, comprising: a solid immersion lens (SIL) having a surface supporting a first side of the wafer and providing a first force to said first side of said wafer; a supporting structure rigidly fixing the SIL in place; an electrical probe assembly above a second side of the wafer, opposite the first side of the wafer, and providing a second force to said second side of said wafer, said second force counter to said first force, wherein said first force and said second force form a wafer pliers against said wafer, such that forces are balanced with increasing primary and restoring forces by said wafer pliers, until an ultimate force needed for electrical probing is achieved without the bending said wafer; and a wafer positioning system for positioning the wafer.