| 摘要 |
PURPOSE: A detection method of a leakage current is provided to reduce manufacturing costs and test costs by connecting pins used in test mode with the other pins not used in test mode through pass gates. CONSTITUTION: A first, and a fifth data pins(1,5) are used in test mode. Then, a second, a third, and a fourth data pins(2,3,4) are connected with the first data pin(1) by respectively using a first, a second, and a third(T1,T2,T3) for connecting between the outputs of the first and second data pins(1,2), the outputs of the second and third data pins(2,3), and the outputs of the third and fourth data pins(3,4). At the same time, a sixth, a seventh, and an eighth data pins(6,7,8) are connected with the fifth data pin(5) by respectively using a fourth, a fifth, and a sixth(T4,T5,T6) for connecting between the outputs of the fifth and sixth data pins(5,6), the outputs of the sixth and seventh data pins(6,7), and the outputs of the seventh and eighth data pins(7,8). |
