Bioprocessing element and neural network processor with bioprocessing element

A neural network processor comprising:

• a plurality of bioprocessing devices performing an operation based on cultured biological neurons,
• wherein the bioprocessing devices are connected in parallel, and
• wherein each of the bioprocessing elements comprises:
• an electrode layer comprising electrodes configured to be connected to the biological neurons;
• circuit layers, stacked with the electrode layer, comprising stacked circuits for the biological neurons, wherein, for each of the circuit layers, circuit blocks of different groups comprised in the circuit layer are configured to perform different predetermined functions and signals of circuit blocks of a same group comprised in the circuit layer performing a same predetermined function are grouped and transmitted to circuit blocks of a same group comprised in another one of the circuit layers configured to perform the same predetermined function;
• and
• inter-layer connectors configured to connect the electrode layer and the circuit layers.

A bioprocessing device performing an operation based on cultured biological neurons, the device comprising:

• an electrode layer comprising electrodes configured to be connected to the biological neurons;
• a circuit layer stacked with the electrode layer and comprising groups of adjacent circuit blocks, wherein, for each of the groups, the circuit blocks of the group are configured to perform a same operation that is different than an operation performed by circuit blocks of another one of the groups and signals of the circuit blocks of the group are grouped and transmitted to circuit blocks of another group of another circuit layer configured to perform the same operation;
• and
• inter-layer connectors configured to connect the electrode layer and the circuit layer.