42 Testing or research on electronic circuits, semiconductor devices, integrated circuits, large scale integrated circuits, and image sensors; design of electronic circuits, semiconductor devices, integrated circuits, large scale integrated circuits, and image sensors; mask design for image sensor manufacturing; design of color filter for image sensor manufacturing; design of analog IP, mixed signal circuit for image sensor; design of test circuit and insertion and creation of test pattern for image sensor; design and verification of logic circuits for image sensor; system design of image sensor; design of analog custom layout for image sensor; design of whole image sensor chip layout; analysis and evaluation of electronic circuits, semiconductor devices, integrated circuits, large scale integrated circuits, and image sensors for quality control purposes; function and characteristic evaluation of image sensor for quality control purposes; reliability evaluation of image sensor for quality control purposes; consulting on overall image sensor design; providing test program for image sensor evaluation for quality control purposes; development of test program for image sensor evaluation for quality control purposes; design services of image sensors on electronic circuits, semiconductor devices, integrated circuits, large scale integrated circuits, and image sensors