Method for retaining a device to a substrate

A method for retaining a device to a substrate, the method comprising:

• disposing a thermally or chemically removable material directly over a first portion of the device;
• positioning a second portion of the device adjacent to the substrate;
• securing a retainer to the substrate with a part of the retainer disposed over the removable material, wherein the retainer is secured adjacent to the device;
• and
• removing the removable material to form a gap between the device and at least one of the substrate and the retainer so that the device is freely movably retained therein, such that when the device is exposed to environments, the gap allows separation of the device from the retainer and the substrate without being constrained in response to changes in temperature.