|
Long accepted as
a tool for depth profiling thin films and insulating materials, Quadrupole
Dynamic SIMS (D-SIMS) is now accepted as the instrument of choice to meet the
analytical requirements of 0.18 um linewidth semiconductor implant
technology. Shrinking device geometries require ultra-shallow, high dose
implantation of intentional dopants such as boron and arsenic and thinner,
highly controlled insulating layers (oxides and oxynitrides). These critical
processes of modern semiconductor device fabrication are ideally suited to the
analytical performance of Physical Electronics' ADEPT-1010 instrument.
The ADEPT-1010 employs a unique secondary ion extraction system which provides
the highest transmission available on a quadrupole dynamic SIMS. High
transmission yields low detection limits offering routine analyses of implant
junction depth and dose. These critical factors in implantation can be measured
with reproducibility of a few percent, consistent with the needs of the
semiconductor industry. In addition, the ADEPT-1010 can be used to monitor the
nitrogen content of nitrided oxides with thickness of 5nm and less.
The ultra-high vacuum environment of the ADEPT-1010 allows for depth profiling
of low levels of oxygen and carbon in SiGe layers while maintaining excellent
depth resolution and low sputter rates. This capability is important to the
integrity of these high speed SiGe devices.
The ADEPT-1010 includes a complete software system, SIMetrictm, for
instrument control, data acquisition, and data reduction. The instrument can be
run in an automated data acquisition mode without analyst intervention. This
mode of operation yields high throughput and reproducible results on batch
samples run overnight or over extended time periods. |