Patent ID: 7467464
Filing Date: 2008-12-23
Classification: B29C,G06K,H01L,Y10T

Abstract:
1. A method for manufacturing a Multi Media Card comprising steps of: (a) providing a substrate; (b) after the step (a), mounting a first flash memory chip and a controller chip for controlling the flash memory chip over a front surface of the substrate; (c) after the step (b), molding the first flash memory chip and the controller chip by a resin; (d) after the step (c), providing a case having a main surface and a back surface, and the back surface of the case has a first recess and a second recess; and (e) after the step (d), covering the resin and the front surface of the substrate by the case; wherein the depth of the first recess is deeper than the depth of the second recess, wherein the resin is fitted in the first recess, wherein an edge portion of the substrate is fitted in the second recess, wherein the substrate warps so that a central portion of the substrate projects in a direction away from the case.