Semiconductor devices and methods of making same

Claim 1

A METHOD OF PRODUCING A JUNCTION TRANSISTOR FROM A MONOCRYSTALLINE SEMICONDUCTOR BODY HAVING DISPERSED THEREIN AT LEAST ONE ACTIVATOR ELEMENT FOR PRODUCING DOMINANT CONDUCTION CARRIERS OF ONE CONDUCTIVITY TYPE THEREIN AND A SECOND ACTIVATOR ELEMENT FOR PRODUCING A SMALLER NUMBER OF CONDUCTION CARRIERS OF THE OPPOSITE CONDUCTIVITY TYPE THEREIN, WHICH METHOD COMPRISES FUSING A PORTION OF SAID SEMICONDUCTOR BODY TO PRODUCE A LIQUID-PHASE TO SOLID-PHASE INTERFACE THEREIN, REFREEZING SAID FUSED PORTION FROM SAID INTERFACE, SAID ACTIVATORS BEING OF A KIND, THE RATIO OF THE QUANTITIES THEREOF BEING OF A MAGNITUDE, AND THE FREEZING THEREOF BEING AT A RATE WHEREBY SAID FUSED AND REFROZEN PORTION IN THE REGION THEREOF ADJACENT SAID INTERFACE HAS SMALLER QUANTITIES OF EACH OF SAID ACTIVATOR ELEMENTS AND HAS SAID ONE CONDUCTIVITY TYPE, THE DIFFUSION COEFFICIENT OF SAID SECOND ACTIVATOR ELEMENT BEING APPRECIABLY GREATER THAN THE DIFFUSION COEFFICIENT OF SAID FIRST ACTIVATOR ELEMENT, THE DENSITY OF THE SAID SECOND ACTIVATOR ELEMENT IN SAID UNMELTED REGION OF SAID BODY BEING GREATER THAN THE DENSITY OF SAID FIRST ACTIVATOR ELEMENT IN SAID FUSED AND REFROZEN REGION, HEATING SAID BODY FOR A TIME AND TEMPERATURE WITHOUT MELTING SAID BODY TO CAUSE SUFFICIENT DIFFUSION OF SAID SECOND ACTIVATOR ELEMENT FROM SAID UNMELTED PORTION INTO SAID MELTED AND REFROZEN REGION TO PRODUCE DOMINANT CONDUCTION CARRIERS OF SAID OPPOSITE CONDUCTIVITY TYPE THEREIN.

Claim 2

A METHOD OF PRODUCING A JUNCTION TRANSISTOR FROM A MONOCRYSTALLINE SEMICONDUCTOR BODY HAVING DISPERSED THEREIN AT LEAST ONE ACTIVATOR ELEMENT FOR PRODUCING DOMINANT CONDUCTION CARRIERS OF ONE CONDUCTIVITY TYPE THEREIN AND A SECOND ACTIVATOR ELEMENT FOR PRODUCING A SMALLER NUMBER OF CONDUCTION CARRIERS OF THE OPPOSITE CONDUCTIVITY TYPE THEREIN, WHICH METHOD COMPRISES FUSING A PORTION OF SAID SEMICONDUCTOR BODY TO PRODUCE A LIQUID-PHASE TO SOLID-PHASE INTERFACE THEREIN, REFREEZING SAID FUSED PORTION FROM SAID INTERFACE, SAID ACTIVATORS BEING OF A KIND, THE RATIO OF THE QUANTITIES THEREOF BEING OF A MAGNITUDE, AND THE FREEZING THEREOF BEING AT A RATE WHEREBY SAID FUSED AND REFROZEN PORTION IN THE REGION THEREOF ADJACENT SAID INTERFACE HAS SMALLER QUANTITIES OF EACH OF SAID ACTIVATOR ELEMENTS AND HAS SAID ONE CONDUCTIVITY TYPE, THE DIFFUSION COEFFICIENT OF SAID SECOND ACTIVATOR ELEMENT BEING APPRECIABLY GREATER THAN THE DIFFUSION COEFFICIENT OF SAID FIRST ACTIVATOR ELEMENT, THE DENSITY OF THE SAID SECOND ACTIVATOR ELEMENT IN SAID UNMELTED REGION OF SAID BODY BEING GREATER THAN THE DENSITY OF SAID FIRST ACTIVATOR ELEMENT IN SAID FUSED AND REFROZEN REGION, HEATING SAID BODY FOR A TIME AND TEMPERATURE WITHOUT MELTING SAID BODY TO CAUSE SUFFICIENT DIFFUSION OF SAID SECOND ACTIVATOR ELEMENT FROM SAID UNMELTED PORTION INTO SAID MELTED AND REFROZEN REGION TO PRODUCE DOMINANT CONDUCTION CARRIERS OF SAID OPPOSITE CONDUCTIVITY TYPE THEREIN.