Kla Tencor Corporation

Kla Corporation

Dexter Magnetic Technologies, Inc.

Aron Welk

John Gerling

Tomas Plettner

Robert Haynes

Mehran Nasser-Ghodsi

Christopher Sears

Richard E Stelter

Chun Li

Mehran Nasser Ghodsi

Felipe Fuks

Christopher Padua

Christopher T Padua

A multi-column scanning electron microscopy (SEM) system includes a column assembly, where the column assembly includes a first substrate array assembly and at least a second substrate array assembly. The system also includes a source assembly, the source assembly including two or more illumination sources configured to generate two or more electron beams and two or more sets of a plurality of positioners configured to adjust a position of a particular illumination source of the two or more illumination sources in a plurality of directions. The system also includes a stage configured to secure a sample, where the column assembly directs at least a portion of the two or more electron beams onto a portion of the sample.

Multi-column scanning electron microscopy system

A multi-column scanning electron microscopy (SEM) system is disclosed. The SEM system includes a source assembly. The source assembly includes two or more electron beam sources configured to generate a plurality of electron beams. The source assembly also includes two or more sets of positioners configured to actuate the two or more electron beam sources. The SEM system also includes a column assembly. The column assembly includes a plurality of substrate arrays. The column assembly also includes two or more electron-optical columns formed by a set of column electron-optical elements bonded to the plurality of substrate arrays. The SEM system also includes a stage configured to secure a sample that at least one of emits or scatters electrons in response to the plurality of electron beams directed by the two or more electron-optical columns to the sample.

The magnet arrangement and resulting rotating sputtering magnetron design of an embodiment provides magnetic flux density and distribution to penetrate thick production ferrous targets. Further, the magnetic field shape improves target life by more uniformly removing target material.

Rotating sputtering magnetron

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Tracy, CA, United States of America

Aron Welk