Patent ID: 8268670

Claim:
A method for protecting a semiconductor device that is subjected to a plurality of treatments after fabrication but before shipment, comprising the step of: performing the treatments with a protection member being attached to the semiconductor device, wherein the protection member comprises: a base portion with a first surface and a second surface, said first surface being flat, and the second surface having a projecting portion and a depressed portion; and an engaging portion to engage the protection member with the semiconductor device, so as to detachably attach the protection member to the semiconductor device, said engaging portion extending from a peripheral portion of said second surface, wherein the semiconductor device has a substrate, parts mounted on the substrate, and a plurality of solder balls attached to the substrate, said projected portion of said second surface is shaped so as to contact with the substrate of the semiconductor device, said depressed portion of said second surface is shaped so as not to contact the parts mounted on the substrate, and said engaging portion is to be engaged with a periphery of the substrate of the semiconductor device.