Priorly, semiconductor devices wherein a flexible sheet with a conductive pattern was employed as a supporting substrate, a semiconductor element was mounted thereon, and the ensemble was molded have been developed. The sacrificial spacers or photoresist layer portions shield portions of the top semiconductor layer underneath the trenches from subsequent ion implantation for forming junction butting. When the content is displayed, the system monitors a user’s speech to detect user utterances corresponding to the audio commands and performs content navigation in response to the user utterances. The log entries include at least one of system information, user information, drug information, and patient information. Thus it is possible to reduce a measurement error caused by a change of the light quantity distribution of the light source 12.