Patent ID: 7871842
Filing Date: 2011-01-18
Classification: H01L

Abstract:
1. A production process for making a surface-mounting ceramic LED package, comprising the steps of: (i) preparing a first ceramic green sheet and a second ceramic green sheet and forming through holes in the first ceramic green sheet; (ii) forming LED connection electrodes in the first and/or the second ceramic green sheet; (iii) layering the first ceramic green sheet and the second ceramic green sheet to form a ceramic green sheet substrate having a concave portion; (iv) inserting a mold, which comprises a base portion that presses portions other than the concave portion of the first ceramic green sheet of the ceramic green sheet substrate, and an insertion portion having a convex portion that protrudes from the base portion and presses the inside of the concave portion of the ceramic green sheet substrate, into the concave portion of the ceramic green sheet substrate so that the distal end surface of the insertion portion contacts the bottom of the concave portion of the ceramic green sheet substrate, the distal end surface of the insertion portion of the mold being provided with a groove for forming a partition in the bottom of the concave portion of the ceramic green sheet substrate; (v) crimping the ceramic green sheets by pressing the mold onto the ceramic green sheet substrate while at the same time press-forming into a shape in which a partition is formed in the bottom of the concave portion of the ceramic green sheet substrate and the lateral surface of the concave portion is inclined so as to spread toward the opening; and (vi) firing the crimped and press-formed ceramic green sheet substrate to form a ceramic substrate.