Digital Asynchronous Logic In Printed Electronics

Technology Overview

Digital logic circuits operate by means of a global sequencing element commonly known as \'clock\'. Error-free operation is assured by operating the clock slower than all circuits, known as synchronous logic circuits. The clock synchronizes all logic circuits.

In contrast, the worst-case condition for printed circuits is the difficulty to model due to distributed and potentially degrading device parameters. Principle challenges of printed electronics are:

i) poor stability of printed circuits as printed transistor parameters degrade

ii) digital circuits incurring large margins due to large distribution of printed transistor parameters

These problems limit the potential of printed electronics to be used in applications that required more integrated functions.

Technology Features & Specifications

This invention exploits digital asynchronous logic to overcome the problem of degradation and/or large distribution of transistor parameters for more robust printed circuits. The delay of every circuit is correlate with a printed delay circuit, known as matched delay.

Advantages of the asynchronous logic:

  • Error free for VDD from 10V - 90V
  • Maintains error free operation at the mobility range from 10-1 to 10-4 cm2 V-1 s-1
  • When the mobility of transistor degrades, error free operation can be extended by increasing the power supply voltage
  • Can accommodate the broad range of printed transistor performance distribution
  • Do not required excessive margins to compensate the sparse distribution of printed transistor parameters

Potential Applications

Potential applications which required the use of printed transistors as in:

  • Printed electronics
  • Printed circuits
  • Printed memory
  • Printed sensors
  • Printed intelligence

Customer Benefits

We are looking for interested industrial partners to collaborate in further development of this technology or direct licensing for commercial applications.

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