초록 ▼

To hermetically seal an optically transparent ceramic or glass member to a metallic housing, an aperture with a diameter less than the diameter of the member is formed through the metallic housing. The member is then press-fit into the aperture, partially displacing metal from the walls of the apert

To hermetically seal an optically transparent ceramic or glass member to a metallic housing, an aperture with a diameter less than the diameter of the member is formed through the metallic housing. The member is then press-fit into the aperture, partially displacing metal from the walls of the aperture, forming an inner burr circumscribing the aperture. The walls of the aperture and the circumscribing burr are then coated with a second metal, preferably electroless nickel. The resultant seal maintains hermeticity following thermal cycling and is particularly suited for the manufacture of a hybrid electronic package having an optical or opto-electronic coupling.

대표청구항 ▼

[ We claim:] [1.] A hybrid electronic package, comprising:a unitary metallic housing formed from a metal having a first coefficient of thermal expansion with an aperture of a first diameter extending through a wall of said metallic housing;an optically transparent member inserted into said aperture

[ We claim:] [1.] A hybrid electronic package, comprising:a unitary metallic housing formed from a metal having a first coefficient of thermal expansion with an aperture of a first diameter extending through a wall of said metallic housing;an optically transparent member inserted into said aperture and contacting said aperture at an intermediate point thereof wherein the diameter of said aperture is equal to the diameter of said optically transparent member outward from said intermediate point and essentially conforms to said optically transparent member inward of said intermediate point;a metallic burr extending from an inner surface of said aperture and circumscribing said aperture; anda metallic coating of a second metal coating the walls of said aperture and said circumscribing burr, except for where said aperture contacts said optically transparent member.