Packaged semiconductor device for microwave use

Claim 1

A PACKAGED SEMICONDUCTOR DEVICE FOR USE IN THE MICROWAVE FREQUENCY REGION, COMPRISING A FLAT RECTANGULAR SUBSTRATE OF A DIELECTRIC BATERIAL HAVING SUBSTANTIALLY PARALLEL TOP AND BOTTOM SURFACES, FIRST, SECOND, THIRD AND FOURTH CONDUCTIVE LAYERS FORMED ON SAID SUBSTRATE, A TRANSISTOR ELEMENT OPERABLE IN THE BICROWABE FREQUENCY REGION, EACH OF SAID LAYERS HAVING A FIRST PART FORMED ON SAID TOP SURFACE, A SECOND PART FORMED ON SAID SIDE SURFACE, AND A THIRD PART FORMED ON SAID BOTTOM SURFACE, SAID FIRST, SECOND AND THIRD PARTS BEING ELECTRICALLY CONNECTED WITH EACH OTHER, FIRST, SECOND AND THIRD PARTS OF SAID FIRST CONDUCTIVE LAYER EXTENDING ALONG AND OVER THE ENTIRE LENGTH OF ONE SIDE OF SAID SUBSTRATE, THE FIRST, SECOND, AND : THIRD PARTS OF SAID SECOND CONDUCTIVE LAYER EXTENDING ALONG AND OVER THE ENTIRE LENGTH OF THE OPPOSITE SIDE OF SAID SUBSTRATE TO SAID ONE SIDE AND IN PARALLELWITH FIRST, SECOND AND THIRD PARTS OF SAID FIRST CONDUCTIVE LAYER, RESPECTIVELY, THE FIRST, SECOND AND THIRD PARTS OF SAID THIRD AND FOURTH CONDUCTIVE LAYERS BEING ARRANGED RESPECTIVELY BETWEEN SAID FIRST, SECOND AND THIRD PARTS OF SAID FIRST CONDUCTIVE LAYER AND SAID FIRST, SECOND AND THIRD PARTS OF SAID SECOND CONDUCTIVE LAYER AND EXTENDING IN PARALLEL WITH SAID FIRST AND SECOND CONDUCTOR LAYERS, FIRST PARTS OF SAID THIRD AND FOURTH CONDUCTIVE LAYERS BEING ARRANGED IN LINE, THIRD PARTS OF SAID THIRD AND FOURTH CONDUCTIVE LAYERS BEING ARRANGED IN LINE, THE FIRST PART OF EACH CONDUCTIVE LAYER OVERLAPPING ONLY WITH ITS OWN THIRD PART WHEN VIEWED IN A DIRECTION NORMAL TO SAID SUBSTRATE, THE COLLECTOR OF SAID TRANSISTOR ELEMENT BEING CONNECTED TO SAID FIRST PART OF SAID THIRD CONDUCTIVE LAYER, THE BASE OF SAID TRANSISTOR ELEMENT BEING CONNECTED TO SAID FIRST PART OF SAID FOURTH CONDUCTIVE LAYER, AND THE EMITTER OF SAID TRANSISTOR ELEMENT BEING CINNECTED TO SAID FIRST PARTS OF SAIL FIRST AND SECOND CONDUCTIVE LAYERS, AND LEAD-OUT CONDUCTORS RESOECTIVELY CONNECTED TO SAID THIRD PARTS OF SAID FIRST, SECOND, THIRD, AND FOURTH CONDUCTIVE