A semiconductor device composed of a capacitive humidity sensor comprised of a moisture-sensitive polymer layer electrografted to an electrically conductive metal layer situated on an CMOS substrate or a combined MEMS and CMOS substrate, and exposed within an opening through a passivation layer, packages composed of the encapsulated device, and methods of forming the capacitive humidity sensor within the semiconductor device, are provided.
A semiconductor device composed of a capacitive humidity sensor comprised of a moisture-sensitive polymer layer electrografted to an electrically conductive metal layer situated on an CMOS substrate or a combined MEMS and CMOS substrate, and exposed within an opening through a passivation layer, packages composed of the encapsulated device, and methods of forming the capacitive humidity sensor within the semiconductor device, are provided.
Highly regioselective synthesis of novel aromatic esters of arbutin catalyzed by immobilized lipase from Penicillium expansum
作者:Rong-Ling Yang、Ning Li、Min Ye、Min-Hua Zong
DOI:10.1016/j.molcatb.2010.07.003
日期:2010.11
Ester derivatives of phenolic glycosides have attracted more attention in food, cosmetic and pharmaceutical industries, due to their potent biological activities. In the present study, a group of novel aromatic esters of arbutin were successfully synthesized by using immobilized lipase from Penicillium expansum with excellent 6'-regioselectivities (>99%) and moderate to excellent isolated yields (68-93%), except for 6'-O-vanilloyl-arbutin and 6'-O-(p-hydroxycinnamoyl)-arbutin with 28% and 34% yields, respectively. Among all the acyl donors tested, the lipase was most active towards vinyl 3-phenylpropionate, while remarkable decrease in the activity was recorded when the phenyl of acyl donors carried the hydroxyl and/or methoxyl. (C) 2010 Published by Elsevier B.V.
Integrated Capacitive Humidity Sensor
申请人:Freescale Semiconductor, Inc.
公开号:US20170247247A1
公开(公告)日:2017-08-31
A semiconductor device composed of a capacitive humidity sensor comprised of a moisture-sensitive polymer layer electrografted to an electrically conductive metal layer situated on an CMOS substrate or a combined MEMS and CMOS substrate, and exposed within an opening through a passivation layer, packages composed of the encapsulated device, and methods of forming the capacitive humidity sensor within the semiconductor device, are provided.
Donor specificity and regioselectivity in Lipolase mediated acylations of methyl α-d-glucopyranoside by vinyl esters of phenolic acids and their analogues
作者:Mária Mastihubová、Vladimír Mastihuba
DOI:10.1016/j.bmcl.2013.07.051
日期:2013.10
Methylα-d-glucopyranoside as a model acceptor was acylated by several phenolic and non-phenolic vinyl esters using immobilised Lipolase. Donor specificity and regioselectivity of reaction were investigated. Conversion and rate of acylation by structurally varied donors indicates that the synthetic reactivity of Lipolase corresponds to the hydrolytic activity of feruloyl esterase type A. Lipolase exhibited