Field effect transistors are divided into two categories: junction type and insulated gate type. Junction field-effect transistor (JFET) is named after having two PN junctions, while insulated gate field-effect transistor (JGFET) is named after the gate is completely insulated from other electrodes. At present, the most widely used insulating gate field-effect transistor is MOS field-effect transistor, abbreviated as MOSFET (metal oxide semiconductor field-effect transistor MOSFET); In addition, there are PMOS, NMOS, and VMOS power field-effect transistors. According to the different materials of channel semiconductors, there are two types of junction and insulation gate types: channel and P-channel. If divided by conductivity, field-effect transistors can be further divided into depleted and enhanced types. Junction field-effect transistors are all depletion type, and insulated gate field-effect transistors have both depletion and enhancement types. Baijian can provide various equipment testing services such as consumer material testing according to corresponding testing standards, and can also design solutions based on customer needs to provide non-standard testing services for customers. Baijian Testing is a comprehensive third-party testing agency that provides customers with one-stop testing services and green solutions. If you have testing needs, please feel free to inquire at any time. Testing cycle: 7-15 working days to issue testing equipment testing reports. Testing fee: Free initial testing, quoted based on customer testing needs and experimental complexity. Sample size: The specific sample size needs to be determined based on the customer's testing project, and you can consult an engineer