| 摘要 |
PURPOSE: An apparatus for preventing a contact error of a connection pin on a multilayer substrate for MDF(Main Distributing Frame) switching board is provided to prevent the permeation of an adhesive into an insertion hole for a connection pin by forming a plurality of anti-adhesive holes in a predetermined interval on a land. CONSTITUTION: An apparatus for preventing a contact error of a connection pin on a multilayer substrate for MDF switching board includes a plurality of both-sided substrates(1) and a plurality of adhesive layers(7). A plurality of line patterns(2) are formed on both sides of the both-sided substrates(1). A conductive layer is electrically connected to the line patterns(2). A plurality of connection pins(6), a plurality of insertion holes(3), and a plurality of lands(5) are formed on the both-sided substrate. The adhesive layers(7) are formed on the remaining region except for the lands(5) formed around circumferences of the insertion holes(3) in order to combine the both-sided substrates. A plurality of anti-adhesive holes(8) are formed in a predetermined interval on the lands.
|
