Devices for attaching a first mass and a second mass and methods of making and using the same are disclosed. The curable composition can be made into an optical material by being previously mixed so as to allow the carbon-carbon double bonds having reactivity with an SiH group to react with some or all of the SiH groups in the composition, thereby causing curing. A cross-section of the latching bar has a short edge and a long edge, and the restriction tab has vertical receiving slots and apertures of differing heights. Subsequently, the second power line of the first array may be coupled to a power supply node at the first intermediate voltage level and the first power line of the second array may be coupled to a power supply node at the second intermediate voltage level.