Up to 6 GHz Low Noise Silicon
Bipolar Transistor Chip
Technical Data
AT-41400
Features
鈥?Low Noise Figure:
1.6 dB Typical at 2.0 GHz
3.0 dB Typical at 4.0 GHz
鈥?High Associated Gain:
14.5 dB Typical at 2.0 GHz
10.5 dB Typical at 4.0 GHz
鈥?High Gain-Bandwidth
Product:
9.0 GHz Typical f
T
that are easy to match for low
noise and moderate power appli-
cations. This device is designed for
use in low noise, wideband
amplifier, mixer and oscillator
applications in the VHF, UHF, and
microwave frequencies. An
optimum noise match near 50
鈩?/div>
at
1 GHz , makes this device easy to
use as a low noise amplifier.
The AT-41400 bipolar transistor is
fabricated using Hewlett-Packard鈥檚
10 GHz f
T
Self-Aligned-Transistor
(SAT) process. The die is nitride
passivated for surface protection.
Excellent device uniformity,
performance and reliability are
produced by the use of ion-
implantation, self-alignment
techniques, and gold metalization
in the fabrication of this device.
Chip Outline
Description
Hewlett-Packard鈥檚 AT-41400 is a
general purpose NPN bipolar
transistor chip that offers excel-
lent high frequency performance.
The 4 micron emitter-to-emitter
pitch enables this transistor to be
used in many different functions.
The 14 emitter finger interdigitated
geometry yields an intermediate
sized transistor with impedances
4-99
5965-8922E
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