| 摘要 |
PURPOSE:To obtain an image sensor or an EP-ROM of low cost by assembling a semiconductor element into a plastic stem and bonding a plate of crystal, sapphire or glass for projecting a ray of light onto an element surface on the stem as a window. CONSTITUTION:A semiconductor element 12 is assembled on a plastic stem 11 composed of epoxy resin, a lead frame and etc. and said stem 11 is provided with a glass plate 13 bonded on the stem 11. Thus, a light irradiation properties are not deteriorated and it becomes possible to obtain the low-cost semiconductor device. |
