System and process for manufacturing application specific printable circuits (ASPC'S) and other custom electronic devices

A process for creating a custom printed circuit from pre-provided functional blocks of electronic circuits on a substrate, comprising:

• a) designing the custom printed circuit from one or more functional blocks of electronic circuits;
• and
• b) direct printing one or more conductive traces between the one or more functional blocks of electronic circuits to form the designed custom printed circuit.

A process for providing user defined data in a configurable read-only memory device (ROM), wherein the ROM comprises an array of transistors on a substrate, the process comprising:

• a) direct printing a first interconnect pattern within the array of transistors to provide the user defined data;
• and
• b) direct printing a second interconnect pattern to provide external and/or internal access to the user defined data.

A process for creating a custom printed circuit from pre-provided functional blocks of electronic circuits and standard integrated circuits, comprising:

• a) designing the custom printed circuit from one or more functional blocks of electronic circuits and at least one or more standard integrated circuits;
• and
• b) direct printing one or more conductive traces between the one or more functional blocks of electronic circuits and the at least one or more standard integrated circuits to form the designed custom printed circuit.

A process for creating a membrane keyboard device from a plurality of substrates, wherein each substrate comprises a pre-provided array of transistors and at least one or more standard integrated circuits, the process comprising:

• a) direct printing a plurality of conductive traces for a first membrane of the membrane keyboard onto a first substrate, and direct printing a second plurality of conductive traces for a second membrane of the membrane keyboard onto a second substrate;
• and
• b) direct printing one or more conductive traces from either or both of one or more transistors from the array of transistors and one or more of the standard integrated circuits to at least one or more of the plurality of traces printed on the first and second membranes.