  The development of modern electronics was to a large extent related to the
advent and popularization of bipolar junction technology. The present work
applies science of science concepts and methodologies in order to develop a
relatively systematic, quantitative study of the development of electronics
from a bipolar-junction-centered perspective. First, we searched the adopted
dataset (Microsoft Academic Graph) for entries related to "bipolar junction
transistor". Community detection was then applied in order to derive sub-areas,
which were tentatively labeled into 10 overall groups. This modular graph was
then studied from several perspectives, including topological measurements and
time evolution. A number of interesting results are reported, including a good
level of thematic coherence within each identified area, as well as the
identification of distinct periods along the time evolution including the onset
and coming of age of bipolater junction technology and related areas. A
particularly surprising result was the verification of stable interrelationship
between the identified areas along time.
