A method is described for generating electrode stimulation signals for electrode contacts in a cochlear implant electrode array. The fuel-door housing may also include a locking mechanism moveable between an unlocked state permitting movement of the second housing into the second state and a locked state restricting relative movement between the first housing and the second housing to maintain the second housing in the second state. A request for an emergency exception to the workflow with respect to an update to the content item is received, the update being associated with the problem. Thus, production efficiency and performance of an IC product formed by the mixed-mode process can be improved.