Applied Materials, Inc.

Jriyan Jerry Chen

Soo Young Choi

Tae Kyung Won

Beom Soo Park

Dong Kil Yim

Dong-Kil Yim

Wen-Hao Wu

Lisa L Yang

Yanping Li

Embodiments of the present disclosure generally relate to an organic light emitting diode device, and more particularly, to moisture barrier films utilized in an OLED device. The OLED device comprises a thin film encapsulation structure and/or a thin film transistor. A moisture barrier film is used as a first barrier layer in the thin film encapsulation structure and as a passivation layer and/or a gate insulating layer in the thin film transistor. The moisture barrier film comprises a silicon oxynitride material having a low refractive index of less than about 1.5, a low water vapor transmission rate of less than about 5.0×10g/m/day, and low hydrogen content of less than about 8%.

Moisture barrier film having low refraction index and low water vapor transmission rate

Methods for forming a microcrystalline silicon layer in a thin film transistor structure are provided. In one embodiment, a method for forming a microcrystalline silicon layer includes providing a substrate in a processing chamber, supplying a first gas mixture having a hydrogen containing gas to a silicon containing gas flow rate ratio greater than about 200:1 into the processing chamber, maintaining a first process pressure greater than about 6 Torr in the processing chamber to deposit a first microcrystalline silicon containing layer in presence of a plasma formed from the first gas mixture, supplying a second gas mixture into the processing chamber, and maintaining a second process pressure less than about 5 Torr in the processing chamber to deposit a second microcrystalline silicon containing layer in presence of a plasma formed from the second gas mixture.

Microcrystalline silicon thin film transistor

Embodiments of the present invention relate to methods for depositing an amorphous film that may be suitable for using in a NIP photodiode in display applications. In one embodiment, the method includes providing a substrate into a deposition chamber, supplying a gas mixture having a hydrogen gas to silane gas ratio by volume greater than 4 into the deposition chamber, maintaining a pressure of the gas mixture at greater than about 1 Torr in the deposition chamber, and forming an amorphous silicon film on the substrate in the presence of the gas mixture, wherein the amorphous silicon film is configured to be an intrinsic-type layer in a photodiode sensor.

Methods for forming an amorphous silicon film in display devices

Methods for forming a microcrystalline silicon layer in a thin film transistor structure are provided. In one embodiment, a method for forming a microcrystalline silicon layer includes providing a substrate in a processing chamber, supplying a gas mixture having a hydrogen-based gas, a silicon-based gas and an argon gas into the processing chamber, the gas mixture having a volumetric flow ratio of the hydrogen-based gas to the silicon-based gas greater than about 100:1, wherein a volumetric flow ratio of the argon gas to the total combined flow of hydrogen-based gas and the silicon-based gas is between about 5 percent and about 40 percent, and maintaining a process pressure of the gas mixture within the processing chamber at greater than about 3 Torr while depositing a microcrystalline silicon layer on the substrate.

A nickel silicon alloy barrier layer formed between a metal bonding pad on an integrated circuit and a tin-based solder ball, for example, a lead-free solder. The nickel silicon alloy contains at least 2 wt % silicon and preferably less than 20 wt %. An adhesion layer may be formed between the barrier layer and the bonding pad. For copper metallization, the adhesion layer may contain titanium or tantalum; for aluminum metallization, it may be aluminum. The nickel silicon alloy may be deposited by magnetron sputtering. Commercially available NiSi% sputter targets have provided a superior under-bump metallization (UBM) with lead-free tin solder bumps. Dopants other than silicon/may be used to reduce the magnetic permeability and provide other advantages of the invention.

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Santa Clara, CA, United States of America

Jriyan Jerry Chen