| 摘要 |
<p>PURPOSE:To prevent the mounting part of a circuit board from being destroyed without protruding an EP-ROM from an armour panel by mounting an ultraviolet erasing EPROM on the circuit board, covering it with a cap to transmit ultraviolet rays so as to constitute a circuit module and fixing it to the window of the armour panel. CONSTITUTION:A chip-shaped ultraviolet erasing EP-ROM 1 is attached to a circuit board 2 by die and the pad of the circuit board 1 is bonded with the pad of the circuit board by a wire bonding method. Then, the cap composed of a transmissive plate 6 and a receiving frame 7 covers then and the circuit module is constituted. The circuit module is fixed to the frame 3 and fixed to the armour panel from the both sides like a sandwich. The window is opened on the armour panel corresponding to the cap, and a written data can be erased by irradiating the panel with ultraviolet rays. Thus, the mounting part can be prevented from being destroyed without protruding the EP-ROM onto the upper face rather than the armour panel.</p> |
