Timer switch

An electrochemical switch for delayed switching comprising:

• a source contact;
• a drain contact;
• a switch channel including an electrochemically active material electrically connecting said source contact to said drain contact;
• a delay reservoir including electrochemically active material in contact with said switch channel;
• a gate electrode;
• an electrolyte ionically connecting both said switch channel and said delay reservoir to said gate electrode;
• an application circuit configured to apply a potential across said electrolyte such that an electrochemical reaction between said delay reservoir and said gate electrode is initiated;
• a maintenance circuit configured to maintain a potential across said electrolyte such that a front of said electrochemical reaction first propagates in said delay reservoir until said front reaches said switch channel before said electrochemical reaction alters the electrical conductivity of said switch channel such that said switch channel switches.

An electrochemical timer switch comprising:

• a source contact;
• a drain contact;
• a gate electrode;
• an electrochemically active element defining a delay reservoir and a switch channel;
• and
• an electrolyte being in contact with the electrochemically active element and the gate electrode thereby facilitating an electrochemical reaction between the electrochemically active element and the gate electrode, wherein
• said switch channel is between, and in contact with, said source and drain contacts and having the ability of altering electrical conductivity through said electrochemical reaction, and
• said delay reservoir separates said switch channel from said gate electrode thereby preventing the switch channel from participating in said electrochemical reaction unless the delay reservoir is first electrochemically reacted.