PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME
A printed circuit board includes: a first insulating layer; a first circuit layer disposed above the first insulating layer; a second insulating layer disposed above the first insulating layer; a second circuit layer disposed above the second insulating layer and constructed of a photosensitive mate...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A printed circuit board includes: a first insulating layer; a first circuit layer disposed above the first insulating layer; a second insulating layer disposed above the first insulating layer; a second circuit layer disposed above the second insulating layer and constructed of a photosensitive material; and a protective layer disposed above the second insulating layer and surrounding the second circuit layer, wherein the protective layer includes a tunnel type cavity and exposes a portion of the second circuit layer to an outside environment, and wherein the second insulating layer exposes a portion of the first circuit layer located below the cavity to an outside environment. |
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