Method for optimizing thermal cycle and random vibration life of LCCC chip solder joint of car networking
A technology of random vibration and optimization methods, applied in design optimization/simulation, computer-aided design, special data processing applications, etc. The effect of cycle life
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[0065] Such as figure 1 As shown, 1) establish the finite element analysis model of LCCC solder joint;
[0066] 2) Obtain the thermal cycle stress of the LCCC solder joints: apply constraints to the model built in step 1), perform analysis under temperature cycle loading conditions, and then use ANSYS software to simulate and analyze the model to obtain the stress distribution of the LCCC solder joints;
[0067] 3) Obtain the random vibration stress of the LCCC solder joint: impose constraints on the model built in step 1), perform analysis under random vibration loading conditions, and then use ANSYS software to simulate and analyze the model to obtain the stress distribution of the LCCC solder joint;
[0068] 4) Determine the influencing factors that affect the thermal cycle and random vibration of LCCC solder joints: specifically include LCCC pad width W, pad length L, gap height H, and stencil thickness T, so as to obtain a set of process parameters that can be optimized a...
test approach Y1
[0079] Test plan Y 1 :X 1 ={X 11 ,X 12 ,X 13 , X 14}={M 1 , N 1} (3)
test approach Y2
[0080] Test plan Y 2 :X 2 ={X 21 ,X 22 ,X 23 , X 24}={M 2 , N 2} (4)
PUM
Property | Measurement | Unit |
---|---|---|
Width | aaaaa | aaaaa |
Length | aaaaa | aaaaa |
Gap height | aaaaa | aaaaa |
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