Carrier tape Design Specifications

Understanding the Symbols in Carrier Tape Engineering Drawings: 

(1) W - represents width; 

(2) A0 - represents the length of the trench or pit bottom; 

(3) B0 - represents the width of the trench or hole at the bottom; 

(4) D - represents the diameter of the circular edge hole; 

(5) D1 - represents the inner hole diameter; 

(6) D2: Indicates the diameter of the elliptical edge hole; 

(7) E - represents the distance from the horizontal bisector of the circular edge slot to the upper edge of the circular edge slot (width); 

(8) F - represents the distance from the centerline of the half-cylindrical recess to the horizontal line of the edge of the positive circular hole; 

(9) K0 - represents the depth of the trench or pit (second level depth); 

(10) K1 - represents the depth of the first level of the trench; 

(11) P0 - represents the distance between the perpendicular bisectors of the two adjacent edge holes; 

(12) P - represents the distance between the center lines of each of the two phase slots, which is equally divided by the entire slot width; 

(13) P2 - represents the distance from the centerline of any slot to the vertical bisector of the adjacent slot edge; 

(14) T - represents the thickness of the tape; 

(15) T2: This represents the bottom thickness of the strip after it has been formed.