The defect density
diagram of a-Si:H (i) layers used in the simulation.
To prevent deterioration in the production yield of such large chips, the defect density
of epitaxial wafers should be controlled within 0.
(defects per 1,000 lines of code) of open source code and commercial code has continued to improve since 2013:
Since 2006, Python has achieved a defect density
Empirical data and experience confirm research showing that as the defect density
becomes low, the miss and false alarm rates increase.
After only five cycles, the final defect density
is almost reached for the fatigue tests achieved under a low displacement.
Some of the common project quality metrics that Motorola used to measure its software development projects included software defect density
, adherence to schedule, estimation accuracy, reliability, requirements tracking, and fault-type tracking (Daskalantonakis, 1992).
The grading and mark placement accuracy appears to have been affected by the raw material defect density
(defects/meter), the complexity of the grading rules, and the grading and marking production speed.
While a SiC wafer provides the high thermal conductivity desirable for high power density applications, its latlice mismatch to GaN can lead to a high dislocation defect density
in the GaN epitaxy.
The microstructure of the Earth-grown crystal is less well defined, consistent with a higher defect density
Figure 3 plots defect density
(defects per 1,000 lines of code) over the 10-year development period of the project, identifying where the major quality improvement initiatives occurred.
As previously mentioned, defect density
(Do) has an effect on ELFR and on the reliability of the product produced as the same type of testing is performed to determine the reliability figure of merit (FIT rate) and the ELFR for each product or process.