-
公开(公告)号：US06427897B1
公开(公告)日：2002-08-06
申请号：US09733890
申请日：2000-12-08
IPC分类号： B23K106
摘要： A feed unit for moving parts over short distances has a four-bar chain forming a translating solid parallelogram having two parallel rigid opposite legs, one of which constitutes a base leg, connected to one another by elastic elements and a piezoelectric stack translator extending between and flexibly connected to the rigid legs for articulation relative to the rigid legs and oriented at an angle of incidence (&agr;) with respect to a base leg that is less than 90° and greater than 45°.
-
公开(公告)号：US06308881B1
公开(公告)日：2001-10-30
申请号：US09548761
申请日：2000-04-13
IPC分类号： B23K3102
CPC分类号： H01L24/80 , B23K20/10 , B23K31/125 , H01L2224/45124 , H01L2924/00014 , H01L2924/01005 , H01L2924/01013 , H01L2924/01019 , H01L2924/01033 , H01L2924/01057 , H01L2924/01068 , H01L2924/01073 , H01L2924/3011 , H01L2924/00 , H01L2224/48
摘要： A quality control method for ultrasonic wire bonding is provided wherein the deformation of the wire to be bonded to a contact surface is substantially constantly monitored. The method includes generating an ultrasonic output table. In the table, the current status of the bonding process is represented as a function of the gradient of deformation of the wire, the impedance of the transducer-bond wedge unit, as well as the currently reached deformation of the wire. The desired gradient of deformation of the wire, a function of the particular status of the process, is specified as the desired value. A correcting variable for the ultrasonic generator is calculated by the addition of correction values formed in the controller to the respective current table values.
摘要翻译： 提供了一种用于超声波引线接合的质量控制方法，其中基本上不断地监测要接合到接触表面的线的变形。 该方法包括生成超声波输出表。 在表中，接合过程的当前状态表示为线的变形梯度，换能器接合楔形单元的阻抗以及当前达到的线的变形的函数。 线的变形的期望梯度，该过程的特定状态的函数被指定为期望值。 通过将形成在控制器中的校正值加到相应的当前表值来计算超声波发生器的校正变量。
-
搜索结果
2 条记录 (耗时 0.016 秒)
