M milli m 1e-3 U micro 1e-6 N nano n 1e-9 P pico p 1e-12 F femto f 1e-15 A atto a 1e-18 Scale factor A is not a scale factor in a character string that contains amps. For example, IBIS-ISS-compliant tools shall interpret the string "20amps" as 20 amperes of current, not as 20e-18mps. Numbers may use exponential format or engineering key letter format, but not both (1e-12 or 1p, but not 1e-6u). To designate exponents, use D or E. Trailing alphabetic characters are interpreted as units comments (for example, 1kV is interpreted as 1k, while 1w is interpreted as 1). Units comments are not checked. Parameters and Expressions Parameter names shall begin with an alphabetic character. Subsequent characters in the parameter name shall be either alphanumeric characters or special characters as defined in If multiple definitions are given for the same parameter, IBIS-ISS uses the last parameter definition even if that definition occurs later in the input than a reference to the parameter. A parameter shall be defined before that parameter is used in a definition for another parameter.
M milli m 1e-3 U micro 1e-6 N nano n 1e-9 P pico p 1e-12 F femto f 1e-15 A atto a 1e-18 Scale factor A is not a scale factor in a character string that contains amps. For example, IBIS-ISS-compliant tools shall interpret the string "20amps" as 20 amperes of current, not as 20e-18mps. Numbers may use exponential format or engineering key letter format, but not both (1e-12 or 1p, but not 1e-6u). To designate exponents, use D or E. Trailing alphabetic characters are interpreted as units comments (for example, 1kV is interpreted as 1k, while 1w is interpreted as 1). Units comments are not checked. Parameters and Expressions Parameter names shall begin with an alphabetic character. Subsequent characters in the parameter name shall be either alphanumeric characters or special characters as defined in If multiple definitions are given for the same parameter, IBIS-ISS uses the last parameter definition even if that definition occurs later in the input than a reference to the parameter. A parameter shall be defined before that parameter is used in a definition for another parameter.
ibis-iss_ver1_0.docx