"the overall device" is a correct and usable phrase in written English.
You can use it when referring to a collective piece of equipment or technology as a whole. For example, "The overall device design has had a positive effect on efficiency."
The overall device performance (Fig. 3d) and longevity (Fig. 3e) were optimal with tBA.
The simulated single-stage depressed collector of the gyrotron predicted the overall device efficiencies >55%.
Each component is tested individually to characterise and delineate their specific contributions to the overall device.
However, the overall device performance was poor as a result of the degradation of QDs during the harsh deposition process of inorganic layers.
It is found that the graded channel doping feature can efficiently improve the overall device optical and electrical performances.
Electrochemical investigations showed a side reaction takes place inside an active layer which diminished the overall device efficiency.
What has changed is that desktops and by extension the desktop OS make up a significantly lower chunk of the overall devices used in the world.
The optical features of the internal dipole radiation have major impact on the emission pattern and overall device efficiency of organic light-emitting diodes (OLEDs).
That could allow, for example, each element of a data entry to be duplicated 100 times, without enlarging the overall memory device, which would make data more secure, I.B.M. said.
In October, iPad conversion rates reached 6.8percentt as compared to the overall mobile device conversion rate of 3.6percentt.
RIM's smartphone market share dropped from 19% a year ago to 12% and it lost its #5 spot in the overall mobile device rankings to ZTE.
