PURPOSE: To promote the reduction in spurious radiation and to attain a high output by discharging a charge stored in the base-emitter junction of a transistor(TR) chip from a ground part electrode via an inductance element. ;CONSTITUTION: An electrode pad consitituting an internal matching circuit such as the electrode pad of a capacitance element 4 is connected to an outer package 3 forming a ground circuit via a grounding bonding wire 40. The length of the bonding wire 40 is selected so as to be sufficiently longer so that the impedance component is larger than the input impedance of a TR chip 1 at an amplification frequency band and no influence is given onto the amplification frequency hand. Furthermore, the inductance is set to a degree that the resistance is low at a low frequency band and a DC region so as not to increase spurious radiation. Thus, the charge stored in the base-emitter junction of the TR chip 1 is discharged to the outer package through the bonding wire 40 and the influence of other charge is eliminated.;COPYRIGHT: (C)1993,JPO&Japio
展开▼
