TI
http://www.ti.com

Winbond
http://www.winbond.com.cn

VISHAY
http://www.vishay.com/

Freescale
http://www.freescale.com.cn

Anpec
http://www.anpec.com.tw

Renesas
http://cn.renesas.com

ST
http://eu.st.com/stonline

RichTek
http://tw.richtek.com

AVAGO
http://www.avagotech.cn

AMD
http://www.amd.com/

Analog Devices
http://www.analog.com 

Atmel
http://www.atmel.com

Cypress
http://www.cirrus.com/

CSR
http://www.csr.com/

Cypress
http://www.cypress.com/

EMERSON
http://www.emerson.com/