| 摘要 |
PURPOSE:To improve measurement efficiency by the standardization of check point positions by providing the corners of the main surface of a substrate forming an I.C. with land portions that are used in combination with electrodes on the substrate for electrically checking the I.C. CONSTITUTION:On the main surface of a substrate 1 an electric circuit is formed consisting of a plurality of transistors, resistors, capacitors, etc., wiring and a plurality of electrodes 2-14. These electrodes are provided on the substrate side faces and also at one of the four corners of the substrate. The remaining three corners are each provided with lands 15, 16, 17 used for checking and wiring is also made with these lands. The three corners A,B,C are each cut into an angle of 45 deg., and on the inside of the corners the lands 15, 16, 17 are formed by contacting two triangle lands 16, 18 at their respective right angle corners. In this constitution a desired part can be checked by the use of a combination of one of the lands 15, 16, 17 with one of the electrodes 2-14. |
