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    • 5. 发明授权
    • Apparatus for the electrical function testing of wiring matrices,
particularly of printed circuit boards
    • 布线电路特殊电线功能测试装置
    • US5148102A
    • 1992-09-15
    • US768632
    • 1991-10-10
    • Thomas RoseDetlef Hoffmann
    • Thomas RoseDetlef Hoffmann
    • G01R1/07G01R31/28
    • G01R1/072G01R31/2805
    • An apparatus for testing, for example, printed circuit boards having measuring locations connected by interconnects in which some of the measuring locations are closely spaced, includes a carrier plate having an arrangement of gas discharge channels each provided with an electrode for separate ionic contact with the more widely space measuring locations. The more closely space measuring locations are ionically contacted by a group gas discharge channel having a group electrode which extends over a group of the closely space measuring locations. The group gas discharge channel in one embodiment is an oblong hole in the carrier plate with a wire extending along its length. Current flow and voltage via the ionic contact is measured to identify faults in the interconnects between the measuring locations.
    • PCT No.PCT / DE90 / 00641 Sec。 371日期1991年10月10日 102(e)日期1991年10月10日PCT提交1990年8月22日PCT公布。 公开号WO91 / 02986 日期:1991年3月7日。一种用于测试的装置,例如具有通过互连连接的测量位置的印刷电路板,其中一些测量位置紧密地间隔开,包括具有排气通道排列的载体板, 用于与更广泛的空间测量位置分离离子接触的电极。 更紧密的空间测量位置通过具有延伸在一组紧密空间测量位置上的组电极的组气体放电通道离子地接触。 在一个实施例中,组气体排出通道是沿着其长度延伸的导线的载体板中的长孔。 测量通过离子接触的电流和电压以识别测量位置之间的互连中的故障。
    • 6. 发明授权
    • Electro-luminescent automatic testing apparatus and method for ceramic
substrates, printed circuit boards and like items with background
illumination suppression
    • 陶瓷基板,印刷电路板等具有背景照明抑制功能的电致发光自动测试装置和方法
    • US4764719A
    • 1988-08-16
    • US901595
    • 1986-08-29
    • Robert M. Zeh
    • Robert M. Zeh
    • G01R1/07G01R31/02G01R31/28G01R31/309
    • G01R31/309G01R1/072G01R31/026G01R31/2806
    • An automatic, electro-optical testing apparatus which employs electro-luminescence for the testing of items such as printed circuit boards, ceramic substrates and the like for electrical continuity. A unipotential array of conductor wires lying in substantially the same plane is supported within a sealable test chamber over an item under test to develop a desired electric field between exposed conductive surfaces of the item under test and the unipotential array of parallel conductors. Electro-luminescence is produced in a gaseous atmosphere within the sealable test chamber around test points contacted by a movable probe and around all conductive parts on the item under test and having electrical continuity with the test point contacted by the movable probe. The invention thus comprised eliminates the source of undesired background noise illumination while maintaining all of the transparent parallel conductor grid wires of a unipotential array at the same electric potential. This feature in conjunction with scanning with an automatic electro-optical scanning photometer in desired scanning paths parallel to the axes of the unipotential array of conductor wires reduces to a minimum the possibility of error occurring in the test results by reason of undesired background light noise illumination.
    • 一种自动的电光测试装置,其使用电致发光来测试诸如印刷电路板,陶瓷基板等的物品以用于电连续性。 位于基本上相同的平面内的导线的单电位阵列被支撑在可密封的测试室内的待测试项目上,以在待测试项目的暴露的导电表面与平行导体的单电位阵列之间形成期望的电场。 在可密封的测试室内的气体气氛中产生电致发光,该测试室围绕由可移动探针接触的测试点周围以及被测物品上的所有导电部件,并且与由可移动探针接触的测试点具有电连续性。 因此,本发明消除了不需要的背景噪声照明的源,同时保持单电位阵列的所有透明平行导体网格线处于相同的电位。 这个特征与扫描自动电光扫描光度计在平行于导线的单电位阵列的轴的所需扫描路径中的扫描减少了由于不期望的背景光噪声照明而导致测试结果中出错的可能性 。