| 摘要 |
An overmolded electronic assembly is provided having a circuit board with electronic devices and a diagnostic connection. The diagnostic connection includes electrical conductors having a distal end projecting above a first side of the circuit board, for example, circuit pads having solder thereon or conductive pins oriented substantially perpendicular to the circuit board. The electrical conductors are overmolded with sealing material along with the other electronic devices and circuit board area. The sealing material is a dielectric, for example, a thermoset polymer base such as epoxy that may include another material such as a fill material. In order to provide a diagnostic connection to the circuit and electronic devices, the encapsulation or sealing material overlying the electrical conductors is removed from the outside surface down to at least the distal end of the electrical conductors. The arrangement of the electrical conductors and the method of removal of the sealing material prevents damage to the circuit and electronic devices and provides instrumentation used during product development and facilitates failure analysis. The sealing material may be removed, for example, by mechanical cutting, laser cutting, or high pressure jet erosion, for example, by a high pressure water or liquid nitrogen stream.
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