초록 ▼

Filtered feedthrough assembly (100, 200) is formed by mounting a filter support assembly (130, 130', 230) having a capacitor (110,210) mounted thereto, to a conductive feedthrough (10, 10'). The conductive feedthrough includes a metallic ferrule (14, 14') having a centrally disposed through opening

Filtered feedthrough assembly (100, 200) is formed by mounting a filter support assembly (130, 130', 230) having a capacitor (110,210) mounted thereto, to a conductive feedthrough (10, 10'). The conductive feedthrough includes a metallic ferrule (14, 14') having a centrally disposed through opening (28) extending between opposing ends thereof. At least one elongate lead wire (12) extends through the ferrule through opening. A hermetic seal insulator (20, 20') is disposed within the central opening of the ferrule and is sealed thereto. The filter support assembly (130, 130', 230) includes an insulative substrate (132, 132', 132") having a first metallization pattern (133, 314) formed on an upper surface (138, 138") thereof. A second metallization pattern (135, 316) is formed on the lower surface (124, 124') of substrate (132, 132', 132"). A capacitive element (110, 210) is electrically coupled between a first metallization area (145, 318) and second metallization area (143,320) of the first metallization pattern (133, 314). The first metallization area (145, 318) is electrically coupled to the lead (12) and the second metallization area (143, 320) is electrically coupled to the ferrule (14, 14'). The second metallization area (145, 318) includes a metallized recess (140, 140') formed in a perimeter edge (134, 134') of the substrate (132, 132', 132"). A conductive contact material (150) is disposed within the recess for providing the electrical connection to the ferrule (14, 14'). A conductive contact material (152) provides the electrical connection between the lead (12) and the first metallization area (145, 318).

대표청구항 ▼

[ What is claimed is:] [2.] A filtered feedthrough assembly, comprising:a conductive feedthrough including (a) a metallic ferrule having opposing first and second ends and a centrally disposed through opening extending between said first and second ends, (b) at least one elongate lead wire extending

[ What is claimed is:] [2.] A filtered feedthrough assembly, comprising:a conductive feedthrough including (a) a metallic ferrule having opposing first and second ends and a centrally disposed through opening extending between said first and second ends, (b) at least one elongate lead wire extending through said ferrule through opening, and (c) means for forming a hermetic seal between said lead wire and said ferrule disposed within said ferrule through opening;filter support means disposed at an end surface of the hermetic seal means of said conductive feedthrough, said filter support means including an insulative substrate having at least one aperture formed therein for passage of said lead wire therethrough, said substrate having (a) an upper surface with at least one first metallization area adjacent said at least one aperture and at least one second metallization area adjacent a perimeter portion thereof, said first and second metallization areas each having a mounting pad extending therefrom, and (b) an opposing lower surface;at least one capacitor coupled to said filter support means, said capacitor being electrically coupled between said mounting pads of said first metallization area and said second metallization area;means for electrically coupling said first metallization area to said lead wire; and,means for electrically coupling said second metallization area to said ferrule.