Patent ID: 8679936

Claim:
In a method of manufacturing a resistor structure which can exhibit any resistance value within a range of resistance values that includes a resistance value that is desired for the resistor structure, including implanting an amount of dopant in a semiconductor material to form a doped semiconductor region, and annealing the doped semiconductor region according to an anneal recipe, the improvement comprising: using in said annealing step an adjusted anneal recipe that effectuates a reduction in said range of resistance values and also effectuates a shifting of said range of resistance values relative to said desired resistance value; wherein said adjusted anneal recipe comprises three gas flows, the three gas flows comprising a first process gas flow that is followed by a separate ammonia only gas flow that is followed by a second process gas flow; and using in said implanting step an adjusted amount of said dopant to compensate for said shifting of said range of resistance values.