| 摘要 |
A thin-film lithium-ion type battery is encapsulated by forming, on substrate (40), an active stack (44) having cathode collector layer (46) extending over surface area larger than that of other layers; forming, over the structure, a passivation layer (56) comprising through openings at locations intended to receive anode collector and cathode collector contacts; forming first and second separate portions of an underbump metallization; and forming encapsulation layer over the entire structure. Encapsulating thin-film lithium-ion type battery comprises forming, on substrate (40), an active stack (44) having as lower layer a cathode collector layer (46) extending over surface area larger than that of the other layers; forming, over the structure, a passivation layer (56) comprising through openings at locations intended to receive anode collector and cathode collector contacts; forming first and second separate portions of an underbump metallization, the first portions being located on the walls and the bottom of the openings, the second portions covering the passivation layer; and forming encapsulation layer over the entire structure. |
