1. A method for establishing a virtual tether between a mobile device and a semiconductor processing tool, the method comprising: obtaining, by a mobile device, a unique key associated with the semiconductor processing tool; establishing a unique pairing between the mobile device and the semiconductor processing tool based on the unique key that is obtained by the mobile device; in response to successfully establishing the unique pairing between the mobile device and the semiconductor processing tool, authenticating a user of the mobile device for access to the semiconductor processing tool; in response to successfully authenticating the user, performing resource arbitration on the semiconductor processing tool which includes reserving one or more resources associated with the semiconductor processing tool based on a level of access granted to the user; monitoring an activity level of the mobile device over a period of time; and comparing the activity level to a predetermined activity level threshold, wherein the comparing includes determining whether the activity level is less than the predetermined activity level threshold, and when the activity level is determined to be less than the predetermined activity level threshold, revoking the reservation of the one or more resources associated with the semiconductor processing tool; and wherein the revoking the reservation includes logging the user off of the mobile device, releasing the one or more reserved resources, and breaking the unique pairing between the mobile device and the semiconductor processing tool.