Xerox Corporation

Agency for Science, Technology and Research

Mediatek Singapore Pte. Ltd.

Nanyang Technological University

Mediatek Corporation

Beng Ong

Yiliang Wu

Yuning Li

Ping Liu

Jun Li

Zhikuan Chen

Chang-Fu Kuo

Wee Liang Lien

Kok Haw Ong

Samarendra Pratap Singh

Yu Qi

Hoi Kai Ivy Wong

Min Jie Wu

Maria Birau

Ashok Kumar Mishra

Subodh Gautam Mhaisalkar

Siu Choon Ng

Siew Lay Lim

Prashant Sonar

Andrew Grimsdale

Minjie Wu

Ging Meng Ng

Chang Ming Li

Qin Fang

Omer E Ahmed Moawia

A polymer comprises a polymeric chain represented by formula (I) or (II). In formula (I) a, b, d, and n are integers, a from 0 to 3, b from 1 to 5, c from 1 to 3, d from 1 to 5, and n from 2 to 5000; Rand Rare side chains; Rand Rare each independently H or a side chain; and when a is 0, Rand Rare side chains. In formula (II), a, b, c, d, e, and n are integers, a from 1 to 3, b and c being independently 0 or 1, d and e being independently 1 or 2, and n from 2 to 5000; Rand Rare side chains except &#x2014;COOalkyl; and X, Xand Xare independently O, S, or Se. Semiconductors and devices comprising the polymer are also provided. 

Polymeric semiconductors, devices, and related methods

A compound including at least one type of an optionally substituted indolocarbazole moiety and at least one divalent linkage.

Compound having indolocarbazole moiety and divalent linkage

There is presently provided compounds of formula (I), which are useful as p-type semiconductor materials and in devices comprising such p-type semiconductor materials. 

P-type materials and organic electronic devices

A polymer comprises a polymeric chain represented by formula (I) or (II). In formula (I), a, b, c, d, and n are integers, a from 0 to 3, b from 1 to 5, c from 1 to 3, d from 1 to 5, and n from 2 to 5000; Rand Rare side chains; Rand Rare each independently H or a side chain; and when a is 0, Rand Rare side chains. In formula (II), a, b, c, d, e, and n are integers, a from 1 to 3, b and c being independently 0 or 1, d and e being independently 1 or 2, and n from 2 to 5000; Rand Rare side chains except &#x2014;COOalkyl; and X, Xand Xare independently O, S, or Se. Semiconductors and devices comprising the polymer are also provided. 

A polymer comprising at least one type of repeat unit comprising at least one type of an optionally substituted indolocarbazole moiety and at least one divalent linkage.

Polymer having indolocarbazole moiety and divalent linkage

A substituted indolocarbazole comprising at least one optionally substituted thienyl.

Substituted indolocarbazoles

An organic compound represented by the following general formula (I) wherein n is an integer from 1 to 500, inclusive, and R1 and R2 are each independently a moiety having an atom length of from about 8 atoms to about 20 atoms. 

Dithienothiophene derivatives

An organic compound represented by the following general formula (I) and characterized by the conjugation of thieno[3,2-b]thiophene, thiophene and phenylene units in the conjugated compound. 

Thienothiophene derivatives

A process for fabricating a thin film transistor comprising: (a) forming a gate dielectric; (b) forming a layer including a substance comprising a fluorocarbon structure; and (c) forming a semiconductor layer including a thiophene compound comprising one or more substituted thiophene units, one or more unsubstituted thiophene units, and optionally one or more divalent linkages, wherein the layer contacts the gate dielectric and is disposed between the semiconductor layer and the gate dielectric.

Fabricating TFT having fluorocarbon-containing layer

A process to fabricate an electronic device comprising: (a) liquid depositing a composition comprising a liquid, silver-containing nanoparticles, a replacement stabilizer comprising a carboxylic acid on the surface of the silver-containing nanoparticles, and a residual amount of an initial stabilizer on the surface of the silver-containing nanoparticles, resulting in a deposited composition; and (b) heating the deposited composition to form an electrically conductive layer comprising silver.

Electronic device fabrication process

An integrated circuit and an apparatus are provided. The integrated circuit comprises a bias circuit, an LC resonator circuit, and a current mode logic (CML) frequency divider. The bias circuit generates first and second bias voltages. The LC resonator circuit generates an oscillation signal having an oscillation frequency. The CML frequency divider, coupled to the bias circuit and the LC resonator circuit, biased by the first and second bias voltages, receives the oscillation signal to generate an output signal having an output frequency with a fractional rate of the oscillation frequency. The oscillation signal comprises AC and DC components, the CML frequency divider receives the AC component to determine an injected frequency and reuses the DC component to provide tail currents to determine a natural frequency of the CML frequency divider. The output frequency is determined by the injected frequency and the natural frequency.

Voltage controlled oscillator

A polymer comprising one or more types of repeat units, wherein the polymer includes a substituted thieno[3,2-b]thiophene component A and a different component B in the same type of repeat unit or in different types of repeat units, and wherein the polymer excludes a substituted or unsubstituted thieno[2,3-b]thiophene moiety. The polymer can be used as a semiconductor in electronics such as in organic thin film transistors.

Polymer having thieno[3,2-b] thiophene moieties

A Global Positioning System (GPS) receiver integrated with a cellular phone system, comprising a single-balanced mixer, a poly phase filter, a channel select filter, an analog-to-digital converter, a reference frequency source, and a PLL unit is disclosed. The single-balanced mixer downconverts a GPS signal to generate an in-phase signal I and a quadrature signal Q. The poly phase filter generates an IF signal based on the in-phase signal I and the quadrature signal Q. The channel select filter receives the IF signal to filter unwanted channel signals. The analog-to-digital converter converts the signal from the channel select filter to a digital output signal. The reference frequency source provides a reference frequency to the analog-to-digital converter. The PLL unit receives the reference frequency for generating a clock signal to the single-balanced mixer for downconversion.

Mobile communication system with integrated GPS receiver

An electronic device comprising a polymer comprising at least one type of repeat unit comprising at least one type of an optionally substituted indolocarbazole moiety and at least one divalent linkage.

Growing community of inventors

Singapore, Singapore

Beng Ong