A semiconductor device containing at least one transistor and at least one heater resistor in a heater resistor area adjacent the at least one transistor on a semiconductor substrate. The device includes a silicon substrate containing contact openings for metal contacts to the at least one transistor....http://www.google.es/patents/US6887782?utm_source=gb-gplus-sharePatente US6887782 - Diffusion barrier and method therefor
