Method to increase carbon and boron doping concentrations in Si and SiGe films
   
   

We provide a method of doping an Si or SiGe film with carbon or boron. By reducing the silicon precursor pressure, heavily-doped films may be obtained. A single dopant source may be used. The doped Si and SiGe films are of suitable quality for use in a transistor such as an HBT.

 
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> METHOD OF FORMING CORE AND PERIPHERY GATES INCLUDING TWO CRITICAL MASKING STEPS TO FORM A HARD MASK IN A CORE REGION THAT INCLUDES A CRITICAL DIMENSION LESS THAN ACHIEVABLE AT A RESOLUTION LIMIT OF LITHOGRAPHY
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