3/2/2023 0 Comments Layouteditor slanted array![]() ![]() ![]() Transistor arrays were quickly and reliably configured for different logic functions by an additional process step of inkjet printing conductive silver wires and poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) resistors between transistors or between logic blocks. We have fabricated arrays of organic thin-film transistors (OTFTs) and printed electronic components driving an electrophoretic ink display up to 70 mm by 70 mm on a single flexible transparent plastic foil. In this paper, we present a functional integrated plastic system. 2 is the IGA fabricated with TUC process. This structure has been designed and implemented for two different processes of CPI (Center for Process Innovation) and TUC (Technical University of Chemnitz) according to their Design Rules (DRC) restrictions and process yield. 1 in which pseudo ratioed pMOS with three power rails (VDD, GND, VSS) is selected as the cell style in basic bulk cell, for a process with only p-channel transistors available. In this methodology, IGA is divided into main pCells such as (Basic-Bulk-Cell (repetition of OTFTs), Wire-Cell, Inter-Connection Cell and PAD cells) and the design parameters of the pCells vary according to any target process restrictions. ![]() Furthermore, since there is a big variety of printed electronics process technologies, Paramiterizable-Cell (PCell) approach is used to scale the inkjet gate array regardless of the technology dimensions (design rules). So, depending on the number of KGOs and their position and the target function, each fabricated foil can have its own personalization. This solution is achieved by wiring only the Known Good OTFTs (KGO) which has been characterized and marked individually in the GA customization stage. In order to overcome this issue, fault-tolerant concept is proposed as a strategy to allow achieving high yield on circuits out of foils with mid yield in Organic Thin Film Transistors (OTFTs). The main barrier for the wide adoption of printed electronic circuits is its poor yield. In this paper, we introduce Technology-Independent Fault-Tolerant Inkjet Gate Array (IGA) structure as a novel concept to allow ASPEC design in Organic Electronics. Application Specific Printed Electronic Circuits (ASPEC), are circuits designed and customized for a special application, (the equivalent term for ASIC in Organic Electronics). ![]()
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