| 摘要 |
<p>PURPOSE:To reduce the degree of erasing of a mask and the like by a method wherein the mask and the like is put on the surface of a package, and a film through which the mark and the like can be visually observed is provided thereon. CONSTITUTION:A recessed part 3 is formed on the upper surface f the package 2 of an IC 1. The size of the recessed part 3, its area in other words, is provided freely according to the size and number of letter, marks and th like. The mark, type and the like are impressed on the surface of the recessed part 3 using silver ink. Besides, the film of transparent resin 4 is coated on the above- mentioned surface. As a result, the degree of erasing of the letter, marks and the like can be reduced.</p> |
