Patent ID: 7845542
Filing Date: 2010-12-07
Classification: B23K,H01L,Y10T

Abstract:
1. A process control procedure for a bonding process comprising: a) predetermining a deformation upper control limit for deforming a bonding precursor member; b) predetermining an actuator time upper control limit for a bonding energy actuator; c) defining a shut-down time value as corresponding to an earliest occurrence of a first shut-down condition or an earliest occurrence of a second shut-down condition, wherein said first shut-down condition occurs when a deformation value of said bonding precursor member reaches said deformation upper control limit before an actuator time value for said bonding precursor member reaches said actuator time upper control limit and said second shut-down condition occurs when an actuator time value for said bonding precursor member reaches said actuator time upper control limit before a deformation value of said bonding precursor member reaches said deformation upper control limit; d) applying a first bonding energy to a first bonding precursor member from said activated bonding energy actuator; e) deforming said first bonding precursor member in response to said first bonding energy while monitoring deformation values of said first bonding precursor member and actuator time values for said first bonding precursor member; f) determining at a first monitored actuator time value for said first bonding precursor member that a first monitored deformation value of said first bonding precursor member has reached said deformation upper control limit before said first monitored actuator time value has reached said actuator time upper control limit, thereby triggering an earliest occurrence of said first shut-down condition for said first bonding precursor member; g) shutting down application of said first bonding energy to said first bonding precursor member in response to said earliest occurrence of said first shut-down condition for said first bonding precursor member such that said first monitored actuator time value is a first shut-down time value; h) producing a first acceptable deformed bond member from said first bonding precursor member having a first final deformation value substantially equal to said deformation upper control limit; i) applying a second bonding energy to a second bonding precursor member from said activated bonding energy actuator; j) deforming said second bonding precursor member in response to said second bonding energy while monitoring deformation values of said second bonding precursor member and actuator time values for said second bonding precursor member; k) determining at a second monitored actuator time value for said second bonding precursor member that said second monitored actuator time value has reached said actuator time upper control limit before a second monitored deformation value of said second bonding precursor member has reached said deformation upper control limit, thereby triggering an earliest occurrence of said second shut-down condition for said second bonding precursor member; l) shutting down application of said second bonding energy to said second bonding precursor member in response to said earliest occurrence of said second shut-down condition for said second bonding precursor member such that said second monitored actuator time value is a second shut-down time value; and m) producing a second acceptable deformed bond member from said second bonding precursor member having a second final deformation value substantially less than said deformation upper control limit.