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AssigneeTDK Corporation
InventorAkifumi Kamijima
Estimating the term…
In an electronic device, insulating layers (24, 26 and 28) on metal conductors (23 and 27) situated inside the device are formed of insulating layers made of a novolac resin, and an insulating layer made of a polyimide resin is used as an insulating layer (30) covering these insulating layers and exposed on the surface of the device. Development can be prevented in the case where a portion of each of the insulating layers (24, 26 and 28) is opened to expose a metal conductor, and rework can also be easily carried out. The use of an insulating layer made of a polyimide resin as the insulating layer (30) exposed on the surface of the device provides excellent weather resistance and reliability.
An electronic device formed with at least a portion of an insulating layer exposed on the surface of the device, wherein:
A method for fabricating an electronic device which is formed with at least a portion of an insulating layer exposed on the surface of the device, the insulating layer comprising at least an insulating layer made of a novolac resin and an insulating layer made of a polyimide resin, the insulating layer made of the novolac resin formed on a metal conductor situated inside the device, and the insulating layer made of the novolac resin, a portion of which is opened to expose the metal conductor, the method comprising:
Dependencies are inferred from the claim text.