In Auburngrads/SMRD: Statistical Methods For Reliability Data

Example 1.8 - Printed Circuit Board ALT Data (Meeker & LuValle, 1995)

• Motivation for the study

  • Relative humidity $\%RH$ affects the time until a short-circuit event in PCB's

  • Failures may be generated more quickly by increasing $\%RH$

• Study objectives

  • Drive failures of PCB's at several levels of $RH$

  • Use the failure data to determine the proportion of PCB's failing at the "use" humidity

• Data set (Table 1.4) printedcircuitboard

  • $n = 70$ PCB's tested at $4$ separate levels of $\%RH$

  • The time until a short-circuit was assessed in $4$ or $12$-hour intervals

Auburngrads/SMRD documentation built on Sept. 14, 2020, 2:21 a.m.