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In this study, the modified panel base package (PBP) technology with enhanced cover layer is proposed to improve packaging reliability. One cover layer which has larger Young's modulus than the lamination material is applied to restrain the expansion/shrinkage of dielectric. The testing samples are fabricated and tested under temperature cycling. Besides, three-dimensional finite element (FE) analysis...
A new panel base package (PBP) technology that was developed based on the concepts of the wafer level package (WLP) has been proposed in order to obtain the signal fan-out capability for the fine-pitched integrated circuit (IC). In the PBP, the chip is attached to a selected chip carrier, and the volume of IC devices is extended for the redistribution of the original die pads. In this study, the thermal...
The toxicity of two species of wild Cambodian freshwater pufferfish of the genus Tetraodon, T. turgidus and Tetraodon sp., was investigated. Tetraodon sp. was non-toxic. The toxicity of T. turgidus was localized mainly in the skin and ovary. Paralytic shellfish toxins (PSTs), comprising saxitoxin (STX) and decarbamoylsaxitoxin (dcSTX), account for ≈85% of the total toxicity. Artificially reared specimens...
In this study, we assessed the toxicity of the horseshoe crab Carcinoscorpius rotundicauda collected from Cambodia within two successive months during rainy (April–May) and dry (December–January) seasons, respectively. Toxicity assessments of the collected specimens by standard mouse bioassay showed marked individual variation, and their toxin profiles by liquid chromatography/mass spectrometry (LC/MS)...
Out of eight dominant discrete bacterial colonies isolated and purified from the toxic marine puffer fishes collected in Hong Kong waters, two novel species of non-sporing, non-acid-fast and chemoorganotrophic bacteria capable of producing tetrodotoxin (TTX, a potent non-protein neurotoxin), as well as one previously reported and confirmed TTX-producing bacterium. They were identified as Microbacterium...
The toxicological profiles of two local common puffer fish, Takifugu niphobles (Jordan and Snyder) and Takifugu alboplumbeus (Richardson), collected in Hong Kong waters were investigated continuously for 14months (June 1997-August 1998). Their annual spawning seasons (as evident by the enlargement of gonads and presence of eggs in the ovary) were found to be from October to February (four consecutive...
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