l*****n 发帖数: 29 | 1 Sorry for no input of Chinese.
A simple circuit with only 5 solder balls. The circuit needs to pass at 99%.
We can design a redundant structure, that 1 ball fail but the circuit still
works. Then what is the min. passing rate for each solder ball, if every
ball has the same passing rate?
Thanks. |
A********r 发帖数: 43 | 2 这个看起来不难啊
得知道ball fail 的prob 吧
假设ball 之间 indepdent? |
l*****n 发帖数: 29 | 3 independent balls. system requires 99%. i want to know the requirement for
each ball. Thank you. |
l******n 发帖数: 9344 | 4 0.9673179 at tol 1E-10
for
【在 l*****n 的大作中提到】![](/moin_static193/solenoid/img/up.png) : independent balls. system requires 99%. i want to know the requirement for : each ball. Thank you.
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l*****n 发帖数: 29 | |
t**c 发帖数: 539 | 6 what do you mean by "1 ball fail but the circuit still works"?
Does it mean that the circuit works when less than 2 ball fail?
If yes, then: (1-p)^5 + 5*(1-p)^4 * p = 1-0.99
%.
still
【在 l*****n 的大作中提到】![](/moin_static193/solenoid/img/up.png) : Sorry for no input of Chinese. : A simple circuit with only 5 solder balls. The circuit needs to pass at 99%. : We can design a redundant structure, that 1 ball fail but the circuit still : works. Then what is the min. passing rate for each solder ball, if every : ball has the same passing rate? : Thanks.
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