Self Encapsulating Metal Semiconductor Field Effect Transistor

A new type of organic transistor – Self-Encapsulating Metal-semiconductor Field Effect Transistor (SEMFET) is under development at the University of British Columbia which promises to be the first one to offer quality performance and low cost at low gate voltages (~ 3 V). Self-encapsulation of the SEMFET eliminations a significant number of issues associated with traditional organic semiconductors - electrical instability when exposed to air and moisture; as well as cost and space requirements of additional sealing methods. The self-encapsulation enables the use of this device in medicinal “on-body” application where the transistor may come in direct contact with tissue. SEMFET is also expected to be useful in RFID circuits where the decrease in conductance and transconductance as compared to OFETs because a few hundreds of transistors would be employed over a relatively large area Advantages:

Low voltage gate operation

No non-conductive oxide layer reduces manufacturing costs

Encapsulation reduces instability

Type of Offer: Licensing

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