Patent ID: 6949439
Filing Date: 2005-09-27
Classification: H01L

Abstract:
1. A method of producing a semiconductor power component, the method comprising: preparing a wafer substrate of a first conductive type, including a rear-side emitter region of a second conductive type and a front-side drift region of the first conductive type; providing a front-side MOS control structure, including a front-side source region and a body region which are introduced into the front-side and a control contact, arranged as an insulated contact above the body region and above a part of the front-side drift region adjoining thereto; removing a portion of material of a rear side of the wafer substrate by at least one of an etching operation and a grinding operation; providing a rear-side anode contact connected to the rear-side emitter region and extending partially to the front-side; and providing a front-side cathode contact that is connected to a front-side source region of the front-side MOS control structure and the body region; wherein a thickness of the front-side drift region between the front-side MOS control structure and the rear-side emitter region is considerably larger than a width of a space charge region at a defined breakdown voltage, and a thickness of the rear-side emitter region is greater than 5 μm, the thickness of the front-side drift region being of such dimension that a temperature increase in the rear-side emitter region up to a point in time at which the front-side has reached a defined maximum temperature in a pulse case does not exceed a value of approximately 50K.