Globalwafers Co., Ltd.

Sino-american Silicon Products Inc.

Sino-american Sulicon Products Inc.

I-Ching Li

Wen-Ching Hsu

Wen-Huai Yu

Yu-Min Yang

Chun-Hung Chen

Chia-Chi Tsai

Shang-Chi Wang

Ming-Kung Hsiao

Hsing-Pang Wang

Kuo-Wei Chuang

Ching-Shan Lin

Sung-Lin Hsu

Cheng-Jui Yang

Wen-Chieh Lan

Han-Zong Wu

Masami Nakanishi

Chien-Cheng Liou

Jiunn-Yih Chyan

Hung-Sheng Chou

Jian-Hsin Lu

Bo-Kai Wang

Sung Lin Hsu

Chih-Chieh Yu

Yu-Sheng Su

Miao-Pei Chen

Huang Wei Lin

Lu-Chung Chuang

Yuan Hsiao Chang

Chung-Wen Lan

Yu-Tsung Chiang

Chien-Jen Sun

Ming-Shien Hu

A method for collecting dust from a single crystal growth system includes providing dry air and oxygen into an exit pipe connecting to the single crystal growth system, blowing a first inert gas into the exit pipe to compel the dust oxide toward a dust collecting device, collecting the dust oxide by the dust collecting device; and providing a rotary pump to transport residues of the dust oxide backward. The oxygen reacts with the unstable dust for forming dust oxide. The exit pipe is used to exhaust unstable dust from the single crystal growth system.

Method for collecting dust from single crystal growth system

A wafer surface defect inspection method and a wafer surface defect inspection apparatus are provided. The method includes the following steps. Scanning information of a wafer is received, and the scanning information includes multiple scanning parameters. At least one reference point of the scanning information is determined, and path information is generated according to the at least one reference point and a reference value. Multiple first scanning parameters corresponding to the path information in the scanning parameters are obtained according to the path information to generate a curve chart. According to the curve chart, it is determined whether the wafer has a defect, and a defect type of the defect is determined.

Wafer surface defect inspection method and apparatus thereof

A semiconductor device includes a substrate, an initial layer, and a superlattice stack. The initial layer is located on the substrate and includes aluminum nitride (AlN). The superlattice stack is located on the initial layer and includes a plurality of first films, a plurality of second films and at least one doped layer, and the first films and the second films are alternately stacked on the initial layer, wherein the at least one doped layer is arranged in one of the first films and the second films, and dopants of the at least one doped layer are selected from a group consisting of carbon, iron, and the combination thereof.

Semiconductor device

A material analysis method is provided. A plurality of wafers processed from a plurality of ingots are measured by a measuring instrument to obtain an average of a bow of each of the wafers processed from the ingots and a plurality of full widths at half maximum (FWHM) of each of the wafers. Key factors respectively corresponding to the ingots are calculated according to the FWHM of the wafers. A regression equation is obtained according to the key factors and the average of the bows.

Material analysis method

The disclosure provides a wafer inspection method and wafer inspection apparatus. The method includes: receive scanning information of at least one wafer, wherein the scanning information includes a plurality of haze values; the scanning information is divided into a plurality of information blocks according to the unit block, and the feature value of each of the plurality of information blocks is calculated according to the plurality of haze values included in each of the plurality of information blocks; and converting the feature value into a color value according to the haze upper threshold and the haze lower threshold, generating the color value corresponding to the at least one wafer according to the converted color value according to the feature value, whereby the color graph displays the texture content of the at least one wafer.

Wafer inspection method and apparatus thereof

A dust collecting system for single crystal growth system includes an air compressor, a dust collecting device, a first inert gas source, a rotary pump and a scrubber. The air compressor is fluidly connected to an exit pipe of the single crystal growth system. The exit pipe is used to exhaust unstable dust from the single crystal growth system. The dust collecting device is fluidly connecting to the exit pipe to collect the dust oxide. The first inert gas source is fluidly connected to the exit pipe to blow a first inert gas into the exit pipe to compel the dust oxide toward the dust collecting device. The rotary pump is fluidly connected to the dust collecting device. The scrubber is fluidly connected to the rotary pump. The rotary pump transports the residual dust oxide toward the scrubber. The present disclosure further provides a method for collecting dust.

Method for collecting dust from single crystal growth system and dust collecting system thereof

A mono-crystalline silicon growth apparatus is provided. The mono-crystalline silicon growth apparatus includes a furnace, a support base disposed in the furnace, a crucible disposed on the support base, and a heating module. The support base and the crucible do not rotate relative to the heating module, and an axial direction is defined to be along a central axis of the crucible. The heating module is disposed at an outer periphery of the support base and includes a first heating unit, a second heating unit, and a third heating unit. The first heating unit, the second heating unit, and the third heating unit are respectively disposed at positions with different heights corresponding to the axial direction.

Mono-crystalline silicon growth apparatus

A mono-crystalline silicon growth method includes: providing a furnace, a supporting base and a crucible which do not rotate relative to the furnace, and a heating module disposed at an outer periphery of the supporting base. After solidifying a liquid surface of a silicon melt in the crucible to form a crystal, the heating power of the heating module is successively reduced to appropriately adjust the temperature around the crucible to effectively control a temperature gradient of a thermal field around the crucible, so as to form a mono-crystalline silicon ingot by solidifying the silicon melt.

Mono-crystalline silicon growth method

A mono-crystalline silicon growth apparatus includes a furnace, a support base, a crucible, a heating module disposed outside of the crucible, and a heat adjusting module above the crucible. The heat adjusting module includes a diversion tube, a plurality of heat preservation sheets, and a hard shaft. The diversion tube includes a tube body and a carrying body connected to the tube body. The heat preservation sheets are sleeved around the tube body and are stacked and disposed on the carrying body. The hard shaft passes through the tube body and does not rotate. The hard shaft includes a water flow channel disposed therein and a clamping portion configured to clamp a seed crystal. Therefore, a fluid injected into the water flow channel takes away the heat near the clamping portion. A heat adjusting module and a hard shaft of the mono-crystalline silicon growth apparatus are provided.

A silicon carbide crystal and a manufacturing method thereof are provided. The silicon carbide crystal includes an N-type seed layer, a barrier layer, and a semi-insulating ingot, which are sequentially stacked and are made of silicon carbide. The N-type seed layer has a resistivity within a range of 0.01-0.03 &#x3a9;&#xb7;cm. The barrier layer includes a plurality of epitaxial layers sequentially formed on the N-type seed layer by an epitaxial process. The C/Si ratios of the epitaxial layers gradually increase in a growth direction away from the N-type seed layer. A nitrogen concentration of the silicon carbide crystal gradually decreases from the N-type seed layer toward the semi-insulating ingot by a diffusion phenomenon, so that the semi-insulating crystal has a resistivity larger than 10&#x3a9;&#xb7;cm.

Semi-insulating silicon carbide crystalline ingot having a resistivity larger than 10&#x2227;7 Ohm-cm and manufacturing method therefor

A polycrystalline silicon wafer is provided. The polycrystalline silicon wafer, includes a plurality of silicon grains, wherein the carbon content of the polycrystalline silicon wafer is greater than 4 ppma, and the resistivity of the polycrystalline silicon wafer is greater than or equal to 1.55 &#x3a9;-cm.

Polycrystalline silicon column and polycrystalline silicon wafer

A method for producing a silicon carbide wafer includes: providing a silicon carbide wafer having an unpolished surface; in which the unpolished surface has a first crystal face and a second crystal face; polishing one face of the first crystal face and the second crystal face of the unpolished surface in a first polishing solution by using a polisher; in which the polisher includes a polishing pad and a plurality of abrasive particles fixed on the polishing pad; and polishing the other face of the first crystal face and the second crystal face of the unpolished surface in a second polishing solution by using the polisher; in which a pH value of the first polishing solution is less than or equal to 7, and a pH value of the second polishing solution is greater than or equal to 7. The present disclosure also provides a silicon carbide wafer.

Silicon carbide wafer and method for production thereof

A polycrystalline silicon column is provided. The polycrystalline silicon column includes a plurality of silicon grains grown along a crystal-growing direction. In the crystal-growing direction, the average grain size of the silicon grains and the resistivity of the polycrystalline silicon column have opposite variation in their trends, the average grain size of the silicon grains and the oxygen content of the polycrystalline silicon column have opposite variation in their trends, and the average grain size of the silicon grains and the defect area ratio of the polycrystalline silicon column have the same variation in their trends. The overall average defect area ratio of the polycrystalline silicon column is less than or equal to 2.5%.

A crystal growth apparatus includes a crucible, a heating device, a thermal insulation cover, and a driving device. The crucible contains materials to be melted, wherein the heating device heats the crucible to melt the materials; the thermal insulation cover is provided upon the materials, wherein the thermal insulation cover includes a main body, which has a bottom surface facing an interior of the crucible, and a insulating member being provided at the main body; the driving device moves the thermal insulation cover towards or away from the materials, whereby, the thermal insulation cover effectively blocks heat conduction and heat convection, which prevents thermal energy from escaping out of the crucible.

Crystal growth apparatus and thermal insulation cover of the same

The invention provides a crucible assembly and method of manufacturing a crystalline silicon ingot by use of such crucible assembly. The crucible assembly of the invention includes a crucible body and a fiber textile article. The fiber textile article is made of a plurality of carbon fibers, and is loaded on a bottom of the crucible body. The fiber textile article has a plurality of intrinsic pores randomly arranged.

Growing community of inventors

Hsinchu, Taiwan

I-Ching Li