English citations of zeptoampere

  • 2013 November 5, Semiconductor memory device, US Patent 8575604 (PDF version):
    When the off-state current is less than or equal to 10 zA (1 zA (zeptoampere) is 1×10−21 A), a capacitance of 10 fF stored in the capacitor can be hold as data for at least 104 seconds.