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A semiconductor device including a metal base, a metal case and a through-passage connecting the inside and outside of the metal case, an electric terminal which provides a bridge selectively deposited on an insulator base allowing formation of conductive layer thereon. The insulator base and the co

A semiconductor device including a metal base, a metal case and a through-passage connecting the inside and outside of the metal case, an electric terminal which provides a bridge selectively deposited on an insulator base allowing formation of conductive layer thereon. The insulator base and the conductive layer are integrated with the insulator base and the combination is insertingly engaged with the through-passage of the metal base. A semiconductor element is fixed in the metal case, in which a pseudo-coaxial line structure is formed by the conductive layer, the insulator base, the insulator bridge and the metal case. Accordingly a device of the present invention is capable of stably operating even at a frequency of 10 GHz or higher.

대표청구항 ▼

A device for an electronic device, comprising: a solid metal base having a solid metal case and a throughpassage connecting the inside and outside of said metal case, the metal case for accommodating the electronic device; an electric terminal in the through hole, said electric terminal comprising:

A device for an electronic device, comprising: a solid metal base having a solid metal case and a throughpassage connecting the inside and outside of said metal case, the metal case for accommodating the electronic device; an electric terminal in the through hole, said electric terminal comprising: an insulator base having a planar surface; a strip line conductor layer formed on the planar surface of said insulator base; and an insulator piece abutting part of the planar surface of said insulator base, an upper surface of said strip line conductor layer being exposed on both sides of said insulator piece and the exposed portion being provided on the inside and outside of said metal case, and the electronic device being connectable to the exposed portion of said strip line conductor on the inside of said metal case.