Patent ID: 7181722

Claim:
A method of dividing a circuit pattern for creating complementary stencil masks corresponding to complementary patterns, the method comprising: dividing the circuit pattern into a plurality of complementary patterns including a first complementary pattern comprising a pattern of a cantilevered beam member having a support portion width W 1 and a length L 1 , and a second complementary pattern comprising a pattern of a both end-supported beam member having a support portion width W 2 and a length L 2 ; wherein the dividing of the circuit pattern is performed in a manner that an aspect ratio A 1 (L 1 /W 1 ) of the pattern of the cantilevered beam member is confined to not more than 100, and that an aspect ratio A 2 (L 2 /W 2 ) of the pattern of the both end-supported beam member is confined to not more than 150.