Typical parameters of inductors and capacitors in integrated electronics,

[viperpaki007]

Hi,

Can anybody tell what are the typical range of inductor and capacitor values in integrated circuits. Moreover, what are there typical quality factors and ESR values in integrated circuits.

regards

 

[Dominik Przyborowski]

It depends to technology and type of capacitor, unfortunately I never used inductors so I will no utter. Poly-poly capacitors usually has capacitance ~0.6-1 fF/um^2, MIMCAPs could has ~3-8fF/um^2 but has a lower limit, e. g. 50fF, MOSCAPs has highest beacause its a 2-nodes mosfets with thin oxide, but their capacitance depends to voltage drop on them (must be higher than threshold voltage). In DSM is posible to use VNCAPs - capacitors made from metal layers with relatively low capacitance per square.

The ESR also depends to capacitor type - metal capacitors has relatively low ESR, but poly-poly, if You use not enough contacts to polysilicon could have ESR on a level of several Ohms (depends to layout).

 

[sina taheri]

The inductor value depends on your process and your inductor type.For a spiral inductor you can easily achieve 10 nH but for a bond wire off-chip inductor up to 100 nH can be feasible.I should mention that these are the values I confronted before and for larger inductors I have no idea!!