| 摘要 |
An electronic device and method of making same wherein the device includes a substrate (e.g., a printed wiring board or semiconductor chip) having a circuit thereon, a first non-photosensitive layer (e.g., polyimide resin) positioned on the substrate and over the substrate's circuit, a second, photosensitive layer (e.g., epoxy resin) positioned on the first layer, and an electrically conductive layer positioned on the first, non-photosensitive layer and electrically coupled to the circuit through a hole in the first layer.
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