A photometer has a light source, a sensor, a liquid-core light guide which defines an optical path between the light source and the sensor and through which a liquid to be analyzed can be guided, and at least one port for the liquid. The stimulating step may be conducted by delivering a low voltage alternating current to the person’s body, which may be accomplished utilizing an electronic stimulation device to deliver the current to the feet of the person. The block processor further encodes the encoded data frame at a rate of 12 or 14, and the group formatter divides the encoded data frame into a plurality of enhanced data blocks and maps the divided data blocks into a plurality of enhanced data groups, respectively. The first finger and the second finger are arranged as a pair of spaced-apart fingers and are located on the opposite sides of the elongate object. In the method, a dry deglaze process is performed to remove a portion of the planarization stop layer and a portion of the isolation material to lower the top surface of the isolation material to a desired stepheight above the semiconductor substrate.