Invention Application
US20080017983A1 Flip-chip semiconductor package and chip carrier thereof 有权
倒装芯片半导体封装及其芯片载体

Flip-chip semiconductor package and chip carrier thereof
Abstract:
The present invention discloses a flip-chip semiconductor package and a chip carrier thereof. The chip carrier includes a groove formed around a chip-mounting area. The groove may be formed along a periphery of the chip-mounting area or at corners thereof. The groove is filled with a filler of low Young's modulus so as to absorb and eliminate thermal stress, thereby preventing delamination between an underfill and a flip chip mounted on the chip-mounting area.
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