Comments on "Observations on component infant mortality and burn-in effectiveness

This paper presents the comments of the author on the work of Mr. Cooper (2008) by pointing out two concerns: First, the discussion of burn-in, and the tone of one of the major references (van der Pol et al. (1998)), would lead one to believe that burn-in is the only screen currently or commonly used to identify infant mortality or to detect substandard components. Second, it appears that Cooper´s assumptions regarding acceleration factors may be suitable in cases where burn-in is the only screen in use, where the defects are susceptible to the burn-in stresses, and where only a limited number of different failure modes are present.