{"id":2707,"date":"2025-09-11T15:48:40","date_gmt":"2025-09-11T07:48:40","guid":{"rendered":"https:\/\/weitai2.globaldeepsea.site\/sic-coated-graphite-carrier-importance\/"},"modified":"2026-04-24T14:44:04","modified_gmt":"2026-04-24T06:44:04","slug":"sic-coated-graphite-carrier-importance","status":"publish","type":"post","link":"https:\/\/www.cn-semiconductorparts.com\/it\/sic-coated-graphite-carrier-importance\/","title":{"rendered":"Perch\u00e9 il portatore di grafite con rivestimento SIC conta di pi\u00f9 oggi"},"content":{"rendered":"

Perch\u00e9 il portatore di grafite con rivestimento SIC conta di pi\u00f9 oggi<\/span><\/h1>\n

\u00a0<\/p>\n

By Lucy Zhang (Sales) @ semicera semiconductor technology co., ltd.<\/span><\/p>\n

\n

The semiconductor industry relies on precision and durability, making the sic-coated graphite carrier an essential component in modern manufacturing. These carriers excel in high-performance environments due to their exceptional thermal stability and chemical resistance. Their ability to withstand extreme temperatures and corrosive conditions ensures consistent performance during critical processes like wafer handling and thin film growth. Additionally, their advanced coating technology enhances longevity, reducing maintenance needs and operational costs. As demand for high-quality semiconductors grows, these carriers play a pivotal role in meeting the industry\u2019s rigorous standards.<\/span><\/o:p><\/span><\/p>\n

\u00a0<\/p>\n

The pain points and limitations of pure graphite carriers<\/span><\/b><\/span><\/o:p><\/span><\/b><\/span>\u00a0<\/span><\/h2>\n

Graphite is prone to oxidation in high-temperature environments, particularly in oxygen-rich or corrosive atmospheres, leading to gradual material degradation and shortened service life. Its relatively porous surface with microporous structures facilitates impurity adsorption or particle release, posing contamination risks and adversely affecting wafer yield. Pure graphite exhibits limited mechanical strength and may deform or crack under prolonged thermal cycling or high-stress conditions. <\/span><\/span><\/p>\n

Additionally, graphite demonstrates poor resistance to certain process gases (such as chlorine and fluorine), making it susceptible to chemical reactions.<\/span><\/o:p><\/span><\/span><\/p>\n

<\/span><\/p>\n

In that case, the SiC Coated Graphite Carrier<\/strong> is important because it can meet these needs.<\/span><\/span><\/o:p><\/span><\/p>\n

<\/span><\/span><\/p>\n

Key Characteristics<\/span><\/b> of SiC coating<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h2>\n

Oxidation Resistance<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h3>\n

It stays stable at temperatures up to 1600\u2103 in environments with oxygen, and oxidizes much slower than pure graphite. At high temperatures, it does not lose weight or shrink due to oxidation or structural changes, which greatly extends the service life.<\/span><\/o:p><\/span><\/p>\n

Wear Resistance<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h3>\n

SiC has a high hardness of HV 2800\u20133300<\/strong><\/span>. Its surface is dense and as smooth as a mirror, which completely stops dust from falling off the graphite, prevents particle contamination, and improves the yield of epitaxial wafers significantly.<\/span><\/o:p><\/span><\/p>\n

Corrosion Resistance<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h3>\n

In high-temperature epitaxy environments, it can stably resist corrosive gases such as NH\u2083, HCl, and MO sources (like TMGa, TMAl). It is chemically stable, with no reaction, dissolution or corrosion.<\/span><\/o:p><\/span><\/p>\n

Low density<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h3>\n

The SiC coating made by CVD is dense and continuous, with no visible pores or pinholes. It fully covers and seals the graphite substrate, stops process gases from seeping in and impurities from spreading, and fundamentally prevents wafer contamination.<\/span><\/o:p><\/span><\/p>\n

High Temperature Resistance<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h3>\n

It can work stably for a long time at up to 1600\u2103<\/strong> <\/span>(in environments with oxygen) and above 1800\u2103<\/strong><\/span> (in inert gas environments). At high temperatures, it does not soften, decompose or change its structure.<\/span><\/o:p><\/span><\/p>\n

Thermal Conductivity<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h3>\n

SiC has a thermal conductivity of 120\u2013150 W\/(m\u00b7K). It can transfer heat quickly and evenly, ensuring the temperature on the wafer surface is uniform.\u00a0<\/span><\/o:p><\/span><\/p>\n

<\/span><\/p>\n

Semicera\u2019s SiC Coated Graphite Carrier<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h2>\n

High temperature resistance:\u00a0normal use at 1<\/span><\/b>6<\/span><\/span><\/b>00 \u2103<\/span><\/b>
<\/span><\/b>High thermal conductivity:\u00a0\u00a0equivalent to graphite material<\/span>
<\/span>High hardness:\u00a0\u00a0hardness second only to diamond<\/span><\/b>
<\/span><\/b>Corrosion resistance:\u00a0strong acid and alkali have no corrosion to it,\u00a0the corrosion resistance is better than tungsten carbide and alumina<\/span>
<\/span>No deformation:\u00a0\u00a0low\u00a0coefficient of thermal expansion<\/span>
<\/span>Thermal shock resistance:\u00a0\u00a0it can withstand sharp temperature changes, resist thermal shock, and has stable performance<\/span>
<\/span>Silicon carbide carriers, such as sic etching carrier, ICP etching susceptor, are widely used in semiconductor CVD, vacuum sputtering, etc.\u00a0 \u00a0 \u00a0<\/span><\/p>\n

\u00a0 \u00a0 <\/span><\/o:p><\/span><\/p>\n

We can provide customers with customized wafer carriers<\/strong> of silicon and silicon carbide materials to meet different applications.\u00a0<\/span>\u00a0\u00a0<\/span><\/o:p><\/span><\/p>\n

<\/span><\/p>\n

Comparison with Alternatives<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Propriet\u00e0<\/span><\/b><\/o:p><\/span><\/p>\n<\/td>\n

\n

SiC-Coated Graphite Carrier<\/span><\/b><\/o:p><\/span><\/p>\n<\/td>\n

\n

Pure Graphite<\/span><\/b><\/o:p><\/span><\/p>\n<\/td>\n

\n

High-Purity SiC (Ceramic)<\/span><\/b><\/o:p><\/span><\/p>\n<\/td>\n

\n

Quartz (SiO\u2082)<\/span><\/b><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Struttura<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Dense SiC coating + graphite substrate<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Layered carbon structure<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Fully dense ceramic<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Amorphous glass<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Max Temp (Air)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

1500\u20131600 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

400\u2013500 \u00b0C (oxidizes)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

1600\u20131700 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

1000\u20131200 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Max Temp (Inert\/Vacuum)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

>2000 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

>2000 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

>2000 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

~1200 \u00b0C<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Oxidation Resistance<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Excellent (SiO\u2082 protective layer)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Poor<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Excellent<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Moderate<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Hardness (Vickers)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

2000\u20133000 HV<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

10\u201320 HV<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

2500\u20133000 HV<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

500\u2013600 HV<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Thermal Conductivity<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

100\u2013200 W\/m\u00b7K<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

100\u2013200 W\/m\u00b7K<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

120\u2013200 W\/m\u00b7K<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

1\u20132 W\/m\u00b7K<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Thermal Shock Resistance<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Excellent<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Excellent<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Moderate <\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Poor<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Resistenza chimica<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Great <\/span><\/span>(Cl\u2082, HCl, NH\u2083 resistant)<\/span><\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Moderate<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Excellent<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Good (except HF)<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Particle Generation<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Very low<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

High (dusting)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Low<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Moderate<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Resistenza meccanica<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

High (composite benefit)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Medium\u2013low<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Very high (but brittle)<\/span><\/o:p><\/span><\/p>\n<\/td>\n

\n

Low<\/span><\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/span><\/p>\n

SiC-coated graphite carriers provide the best overall performance compared to alternatives because they combine the high hardness, thermal stability, and chemical inertness of silicon carbide (SiC) with the excellent thermal conductivity and thermal shock resistance of graphite.<\/span><\/p>\n

<\/span><\/p>\n

IL<\/span>\u00a0SiC coating (2000\u20133000 HV)<\/span><\/b>\u00a0protects against wear, oxidation, and corrosive gases, enabling stable operation in air up to <\/span>1500\u20131600 \u00b0C,<\/span><\/b>\u00a0while the graphite substrate (<\/span>~100\u2013200 W\/m\u00b7K<\/span><\/b>) ensures efficient heat distribution and structural resilience. In contrast, pure graphite oxidizes rapidly above ~400\u2013500 \u00b0C, bulk SiC ceramics are brittle despite similar hardness, and quartz suffers from low thermal conductivity (~1\u20132 W\/m\u00b7K) and limited thermal shock resistance.<\/span><\/p>\n

<\/span><\/p>\n

As a result, SiC-coated graphite achieves superior durability, cleanliness, and process consistency in demanding applications such as Chemical Vapor Deposition.<\/span><\/o:p><\/span><\/p>\n

<\/span><\/p>\n

Nowadays\u2019 Market<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h2>\n

SiC coated graphite substrates are composite materials formed by depositing a dense SiC film on the graphite matrix surface, combining graphite\u2019s high thermal conductivity with SiC\u2019s high-temperature resistance, oxidation resistance, and corrosion resistance. In the semiconductor industry, these materials are widely used as plates and brackets in CVD and MOCVD equipment, maintaining structural stability and preventing contamination under high-temperature and reactive conditions. They also serve as critical substrates and structural components in photovoltaics, LEDs, and high-temperature industrial applications. Their comprehensive performance makes them an ideal material for high-purity, high-temperature processes where both performance and cost-effectiveness are paramount.<\/span><\/o:p><\/span><\/p>\n

\u00a0<\/o:p><\/span><\/p>\n

Choose Semicera<\/span><\/b><\/span><\/o:p><\/span><\/b><\/h2>\n

Semicera is a leading supplier of advanced semiconductor ceramics and the only manufacturer in China that can simultaneously provide high-purity silicon carbide ceramic(especially the Recrystallized SiC) and CVD SiC coating. In addition,<\/span>\u00a0Semicera <\/span><\/span>is also committed to ceramic fields such as alumina, aluminum nitride, zirconia, and silicon nitride, etc.<\/span><\/o:p><\/span><\/p>\n

IL <\/span><\/span>main products including: silicon carbide etching disc, silicon carbide boat tow,\u00a0<\/strong><\/span>High Purity SiC Coated Graphite Wafer Carrier Susceptor, <\/span><\/b>silicon carbide wafer boat(Photovoltaic&Semiconductor), silicon carbide furnace tube, silicon carbide cantilever paddle, silicon carbide chucks, silicon carbide beam, as well as the CVD SiC coating and TaC coating.<\/strong> The products mainly used in the semiconductor and photovoltaic industries, such as equipment for crystal growth, epitaxy, etching, packaging, coating and diffusion furnaces,etc.<\/span><\/o:p><\/span><\/p>\n

Besides, Upholding the principle of delivering optimal services to customers, Semicera also provides customized solutions tailored to clients\u2019 <\/span><\/span>unique and special requirements. <\/span><\/span><\/o:p><\/span><\/p>","protected":false},"excerpt":{"rendered":"

SiC coated graphite carriers ensure durability, thermal stability, and chemical resistance, making them vital for precision and efficiency in semiconductor manufacturing.<\/p>","protected":false},"author":1,"featured_media":4284,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[103],"class_list":["post-2707","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-sic"],"_links":{"self":[{"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/posts\/2707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/comments?post=2707"}],"version-history":[{"count":4,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/posts\/2707\/revisions"}],"predecessor-version":[{"id":5533,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/posts\/2707\/revisions\/5533"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/media\/4284"}],"wp:attachment":[{"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/media?parent=2707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/categories?post=2707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cn-semiconductorparts.com\/it\/wp-json\/wp\/v2\/tags?post=2707"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}