Semiconductor integrated circuit

Abstract

A discriminating method for a trimming error is provided. A fuse is connected between an output terminal and a terminal having a potential at a VDD or VSS level, and an output voltage at the time of the trimming error is fixed. Alternatively, when the trimming error occurs, short circuit is established between VDD and VSS, and a large current is made to flow, thereby making error detection easy.

1 .- 9 . (canceled).  
     
     
         10 . A CMOS circuit, comprising: 
 a CMOS circuit;    a MOS transistor connected to the CMOS circuit and having a source terminal, a gate terminal, and a drain terminal, the source terminal being connected to a power supply voltage and the gate terminal being connected to a test signal terminal; and    a fuse element having one end connected to the drain terminal and another end connected to an output terminal of the CMOS circuit.    
     
     
         11 . A CMOS circuit according to  claim 10;  wherein the power supply voltage to which the source terminal is connected is a negative power supply voltage.  
     
     
         12 . A CMOS circuit according to  claim 10;  wherein the power supply voltage to which the source terminal is connected is a positive power supply voltage.  
     
     
         13 . A CMOS circuit, comprising: 
 a CMOS circuit;    a MOS transistor connected to the CMOS circuit and having a source terminal, a gate terminal, and a drain terminal, the drain terminal being connected to an output terminal of the CMOS circuit and the gate terminal being connected to a test signal terminal; and    a fuse element having one end connected to the source terminal and another end connected to a power supply voltage.    
     
     
         14 . A CMOS circuit according to  claim 13;  wherein the power supply voltage to which the fuse element is connected is a negative power supply voltage.  
     
     
         15 . A CMOS circuit according to  claim 13;  wherein the power supply voltage to which the fuse element is connected is a positive power supply voltage.