Tab tape and method of manufacturing the same
View Patent ↗Input test pads of an adjacent pattern area are placed in a vacant area of a layout area of output test pads, optimizing the layout area of test pads for use in inspection of a semiconductor chip. Thus, it is possible to miniaturize a semiconductor package.
1. A TAB tape comprising:
a plurality of adjacent pattern areas defining a plurality of semiconductor packages, each of said plurality of adjacent pattern areas comprising:
a mounting area for a semiconductor chip,
an output test pad area including a plurality of first output test pads for inspecting such semiconductor chip, said output test pad area located adjacent to said mounting area on a first side thereof, and
an input test pad area including at least one first input test pad for inspecting such semiconductor chip, said first input test pad located adjacent to said mounting area on a second side of the mounting area opposite the first side,
wherein each of said adjacent pattern areas has an overlapping area where the first output test pad area of a first pattern area overlaps a first input test pad area of a second pattern area, and the first output test pads of the first pattern area and the first input test pads of the second pattern area are adjacent to each other without overlapping.
2. The TAB tape according to claim 1 , wherein the plurality of first output test pads of the first pattern area form rows and columns, and the first input test pads of the second pattern area are located in the rows and columns.
3. A method of manufacturing the TAB tape according to claim 1 , said method comprising using a mask including a mask pattern, wherein said mask pattern is for forming:
said plurality of first output test pads for use in inspection of a semiconductor chip;
output terminal wires for connecting corresponding output terminals of the semiconductor chip to the output test pads;
said at least one input test pad in the overlapping area, for use in inspection of a semiconductor chip in the adjacent pattern area; and
input terminal wires in said adjacent pattern area, for connecting corresponding input terminals of the semiconductor chip to the input test pads.
4. The method of manufacturing the TAB tape according to claim 3 , wherein the mask pattern includes a mask pattern of the input test pad and a mask pattern of the input terminal wire overlapping each other.
5. A method of manufacturing the TAB tape according to claim 1 , said method comprising using a mask including a mask pattern, wherein said mask pattern is for forming:
a first part comprising said plurality of first output test pads for use in inspection of a semiconductor chip,
an output terminal wire for connecting a corresponding output terminal of the semiconductor chip to the part comprising the plurality of first output test pads,
a second part comprising a plurality of second output test pads for use in inspection of a semiconductor chip, the part being in a pattern area adjacent to a first side of the semiconductor chip,
a third part comprising said at least one first input test pad for use in inspection of the semiconductor chip, the part being placed in the overlapping area in a pattern area adjacent to the other side of the semiconductor chip,
a fourth part comprising said at least one second input test pad located in the overlapping area of the pattern area adjacent to the first side of the semiconductor chip, and
an input terminal wire for connecting a corresponding input terminal of the semiconductor chip to the fourth part comprising the second input test pad.
6. The method of manufacturing the TAB tape according to claim 5 , wherein the first output test pad and the second output test pad are of a predetermined size, such that said overlapping area exists when the mask is displaced within a predetermined range, and the first input test pad and the second input test pad are of a predetermined size, such that said overlapping area exists when the mask is displaced within a standard range.
7. The method of manufacturing the TAB tape according to claim 6 , wherein the test pad has a rounded mask pattern.
8. A method of manufacturing the TAB tape according to claim 1 , said method comprising using a mask including a mask pattern, wherein said mask pattern is for forming:
a first half part comprising said plurality of first output test pads for use in inspection of a semiconductor chip,
an output terminal wire for connecting a corresponding output terminal of the semiconductor chip to the half part comprising the plurality of first output test pads,
a second half part comprising a plurality of second output test pads for use in inspection of a semiconductor chip, the second part being in a pattern area adjacent to a first side of such semiconductor chip,
a third half part comprising said at least one first input test pad for use in inspection of such semiconductor chip, the third half part located in the overlapping area in a pattern area adjacent to a second side of such semiconductor chip opposite the first side,
a fourth half part comprising at least one second input test pad located in the overlapping area of the pattern area adjacent to the first side of such semiconductor chip, and
an input terminal wire for connecting a corresponding input terminal of such semiconductor chip to the fourth half part comprising the second input test pad.
9. The TAB tape according to claim 1 , wherein each test pad has a length determined by an area of a needle mark of a probe with which is in contact with the test pad.
10. A TAB tape comprising:
a plurality of adjacent pattern areas defining a plurality of semiconductor packages, each of said plurality of adjacent pattern areas comprising:
a mounting area for a semiconductor chip,
an output test pad area including a plurality of output test pads for inspecting such semiconductor chip, said output test pad area located adjacent to said mounting area on a first side thereof, and
an input test pad area including at least one input test pad for inspecting such semiconductor chip, said input test pad located adjacent to said mounting area on a second side of the mounting area opposite the first side,
wherein each of said adjacent pattern areas has an overlapping area where the input test pad area of a first pattern area overlaps the output test pad area of an adjacent, second pattern area, and the input test pads of the first pattern area are interspersed among the output test pads of the second pattern area.