Because Precision Is Crucial
In active laser trimming, the assembly is energized with the supply voltage. Certain voltages on the assembly, for example, or even certain amplification factors can be precisely adjusted by trimming the resistors. Especially in the field of sensor technology, active laser trimming allows for the manufacture of highly precise sensor elements and measuring transformers. The use of highly precise design elements can also be avoided, enough so that significantly cheaper standard elements can be used.