One aspect of the disclosure is directed to a calibration system. Each of the container bodies is capable of accommodating at least one IC chip, and has a bottom face formed with a plurality of mount terminals and a top face which is capable of forming a crystal unit thereto. The cartridge is filled with refrigerant by transferring the refrigerant from the refrigerant source to the cartridge, after which, the filled cartridge is disconnected from the refrigerant source. These implanted regions are a sum of said first ion species implanted through said first aperture and said second aperture. Functional tests include many test patterns to test all memory locations in the partially-tested memory chips on the memory modules. The system is engaged and disengaged through the interaction of the various tapered surfaces and the nuts, caused by the directional rotation of the nuts.