摘要:
An IC package is assembled from a bumpless die, a die carrier having a plurality of solder bumps thereon, and a heat spreader lid. The bumpless die is bonded to the heat spreader lid to form a module and then the module is bonded to the bumped die carrier.
摘要:
The invention provides an electronic assembly comprising a carrier substrate, a die, and a solidified underfill material. The carrier substrate has an upper plane. The die has a die substrate and an integrated circuit formed on one side of the die substrate. The die has a lower major surface over the upper plane, an upper major surface, and a plurality of side edge surfaces from the upper major surface to the lower major surface. A corner edge portion where extensions of two of the side edge surfaces meet has been removed. The solidified underfill material is located between and contacts both the upper plane of the carrier substrate and the lower surface of the die.
摘要:
The present invention provides a cytochrome P450-encoding gene, DAS5, as well as an altered gene, das5-D, which are involved in the synthesis of the plant steroid hormone brassinolide. The das5-D mutant has an insertion of a T-DNA containing transcriptional enhancers into its promoter region. Overexpression of the mutant thus produces large amounts of DAS5 transcript. The expression of this das5-D mutation or overexpression of the DAS5 gene in transgenic plants causes such plants to become significantly larger and more robust than their wild-type counterparts, thus increasing plant yields.