公开(公告)号：US5783938A

公开(公告)日：1998-07-21

申请号：US804795

申请日：1997-02-24

申请人： Terry L. Munson ,  Douglas O. Pauls

发明人： Terry L. Munson ,  Douglas O. Pauls

IPC分类号： G01N1/34 ,  G01N1/40 ,  H01L21/66 ,  H05K3/26 ,  G01N1/04 ,  G01R27/10

CPC分类号： H05K3/26 ,  G01N1/34 ,  G01N1/4044 ,  H01L22/12 ,  H05K2203/163

摘要： An apparatus and test method for determining the cleanliness (based on corrosivity) of a specific area on an electronic circuit assembly, such as the area between holes or pads on a single side of an assembly. The apparatus includes: (1) an extraction cell for providing an extraction fluid to an electronic circuit assembly ("ECA") area to be measured; (2) an extraction fluid for extracting residue from the ECA area to be measured; (3) a test cell with two or more electrodes and a voltage source for providing a voltage to the electrodes; and (4) a timer for measuring the time between the application of the voltage and an electrical short between the electrodes. The method includes: (1) positioning an extraction cell over an electronic circuit assembly area to be measured; (2) dispensing an extraction fluid into the extraction cell; (3) contacting the ECA area to be measured with the extraction fluid for a time sufficient to extract residue from the ECA area; (4) transferring the extraction fluid to a test cell made of two or more electrodes; (5) applying a voltage to the electrodes; and (6) measuring the time between the application of the voltage and an electrical short between the electrodes.

摘要翻译： 一种用于确定电子电路组件上的特定区域的清洁度（基于腐蚀性）的装置和测试方法，例如在组件的单​​侧上的孔或焊盘之间的区域。 该装置包括：（1）提取单元，用于将提取流体提供给待测量的电子电路组件（“ECA”）区域; （2）提取流体，用于从待测量的ECA区域中提取残留物; （3）具有两个或多个电极的测试电池和用于向电极提供电压的电压源; 以及（4）计时器，用于测量施加电压与电极之间的电短路之间的时间。 该方法包括：（1）将提取单元定位在要测量的电子电路组件区域上; （2）将提取液分配到提取池中; （3）将待测量的ECA区域与提取液接触足以从ECA区域中提取残留物的时间; （4）将提取流体输送到由两个或更多个电极制成的测试电池; （5）向电极施加电压; 和（6）测量施加电压和电极之间的电短路之间的时间。