Capacitor package structure with functional coating and method for manufacturing the same

A method for manufacturing a capacitor package structure having a functional coating, comprising:

• a preparing step including preparing a surface treating solution including a silane coupling agent and a solvent, wherein the silane coupling agent has a general formula of Y(CH2)nSiX3, wherein n is an integer of 0 to 3, X is same or different substituent selected from the group consisting of:
• chloride, methoxy group, ethoxy group, methoxyethoxy group and acetoxy group, and Y is a vinyl group, an amino group, an epoxy group, a methacryloyloxy group, a thiol group, a uramino group or an isobutyl group;
• performing a first coating step after the preparing step, including:
• coating the surface treating solution onto a capacitor element, wherein the surface treating solution is disposed on a surface of the capacitor element and a part of the surface treating solution enters a plurality of voids of the capacitor element;
• performing a first drying step after the first coating step, including:
• drying the surface treating solution for forming the functional coating;
• performing a second coating step after the first drying step, including:
• coating a conductive dispersion onto the functional coating;
• and
• performing a second drying step after the second coating step, including:
• drying the conductive dispersion for forming a conductive polymer layer, wherein a conductive polymer in the conductive polymer layer is connected to the surface of the capacitor element through the silane coupling agent in the functional coating.