Trimmable resistors having improved noise performance
OwnerOleg Grudin, Leslie Landsbergerinventors
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Abstract
There is described a method for designing a circuit having a plurality of thermally mutable electrical components having different power dissipation and noise tolerance requirements, the method comprising: identifying a desired value for said noise tolerance and said power dissipation for each of said plurality of components; selecting a parameter value for each of said plurality of components; and selecting a dimension for each of said plurality of components as a function of said power dissipation and noise tolerance requirements to yield a trimmable range including said parameter value.
Claims108
A thermally trimmable circuit, the circuit comprising:
- a thermally isolated platform suspended over a depression on a substrate;
- and
- a thermally mutable resistor on said thermally isolated platform taking up a majority of an area of said platform.
A method for providing a circuit including at least one thermally trimmable resistor, the method comprising:
- providing a thermally isolated platform suspended over a depression on a substrate;
- and
- placing said trimmable resistor on said thermally isolated platform and maximizing an area of said resistor on said platform such that said component covers a majority of said platform.
A thermally trimmable circuit, the circuit comprising:
- a thermally isolated platform suspended over a depression on a substrate;
- and
- a thermally mutable resistor embedded in said thermally-isolated platform and composed of a plurality of superimposed layers, whereby a large effective area of said resistor covers a majority of said platform.
A method for providing a thermally trimmable circuit, the method comprising:
- providing a thermally isolated platform suspended over a depression on a substrate;
- embedding a thermally mutable resistor composed of a plurality of superimposed layers in said thermally-isolated platform;
- and
- maximizing an area of said resistor embedded in said platform such that said component covers a majority of said platform.
A method for designing a circuit having a plurality of thermally mutable resistors having different power dissipation and noise tolerance requirements, the method comprising:
- identifying a desired value for said noise tolerance and said power dissipation for each of said plurality of resistors;
- selecting a resistance value for each of said plurality of resistors;
- and
- selecting a dimension for each of said plurality of resistors as a function of said power dissipation and noise tolerance requirements to yield a trimmable range including said resistance value.
A circuit comprising a plurality of thermally mutable resistors having different power dissipation and noise tolerance requirements, characterized in that a dimension for each of said plurality of resistors is set as a function of said power dissipation and noise tolerance requirements to yield a trimmable range including a desired parameter value.
Dependencies are inferred from the claim text.