Mathematics, 10.03.2021 14:40, abby6628

A company has developed two types of Chip Scale Packages (CSP). One is ceramic interposer land grid array (LGA) type. The other is lead on chip (LOC). Thermal cycling
test from -40°C to 125°C with 25 cycles per day is conducted and the distribution of the
thermal fatigue failure is described by the Weibull cumulative distribution function
(CDF):
F(t) = 1-e-Umy
where F(1) is the fraction failing; t is cycles to failure; n is the characteristic life to 63%
failure; and B is Weibull slope or shape parameter. For the LGA CSP, n is 602 and B is
8.78. For the LOC CSP, n is 1073 and ß is 4:32.
W
a) Evaluate the reliability of the LGA CSP and LOC CSP at 10 and 109 cycles.
b) What are the corresponding hazard rates ?
c) Plot the hazard rates vs cycles for both packages.
d) What is the expected life (in cycles) for both packages?

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:30, GEEKLIFE6598

If jm equals 5x -8 and lm equals 2x -6 which expression represents jl

Answers: 1

continue

Mathematics, 21.06.2019 15:00, mrus

Which statements regarding the diagram are true? check all that apply.

Answers: 1

continue

Mathematics, 21.06.2019 17:40, kayleeemerson77

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

Answers: 2

continue

Mathematics, 21.06.2019 19:00, dfrtgyuhijfghj4794

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Answers: 1

continue

Do you know the correct answer?

A company has developed two types of Chip Scale Packages (CSP). One is ceramic interposer land grid...