Nā Uhi CVD no ka Hana ʻana i ka Semiconductor Kiʻekiʻe
I hana ʻia no nā wahi hana semiconductor koʻikoʻi, ʻo kā mākou Chemical Vapor Deposition (CVD) Silicon Carbide (SiC), Tantalum Carbide (TaC), a me Pyrolytic Carbon (PyC) nā uhi e hāʻawi i ka inertness kemika koʻikoʻi, ke kūpaʻa wela loa, a me ka maʻemaʻe ultra-kiʻekiʻe (< 5 ppm). Hoʻolālā ʻia e pale i nā substrates graphite a me nā keramika maʻemaʻe kiʻekiʻe mai ka plasma aggressive, nā kinoea hana reactive, a me ke kaʻapuni wela kiʻekiʻe, hoʻemi kā mākou mau uhi holomua i ka hanauna ʻāpana a hoʻolōʻihi nui i ke ola o nā ʻāpana i loko.ʻO Silicon/SiC Epitaxy, MOCVD, Plasma Etching, a me ka ulu ʻana o Monocrystalnā noi.
Nā haumia metala haʻahaʻa i hōʻoia ʻia e GDMS e pale aku i ka haumia o ka wafer i nā kaʻina hana koʻikoʻi.
Mālama ka ʻano kristal paʻa i ka plasma halogen (CF₄, NF₃, Cl₂) a me nā kinoea ʻino.
Hoʻopau ka mana CTE koʻikoʻi i ka micro-cracking a me ka delamination coating ma lalo o nā haʻalulu wela koʻikoʻi.
| ʻAno Uhi | Pōmaikaʻi ʻenehana koʻikoʻi | Noi Hana Kumu |
|---|---|---|
| Uhi ʻana o CVD SiC | ʻO ke alakaʻi wela kiʻekiʻe, ke kūpaʻa plasma erosion maikaʻi loa | ʻEtch maloʻo, Si Epitaxy, MOCVD, ulu ʻana o ke aniani |
| Uhi ʻana o CVD TaC | Ke kūpaʻa wela loa (>2000°C), ka pale ʻana i ka palaho H₂/SiH₄ | ʻO ka Epitaxy SiC, ka ulu ʻana o ka PVT SiC Crystal hoʻokahi |
| Uhi ʻana o PyC | Ke sila ʻana o ke kinoea Hermetic, ʻili kalapona anisotropic laumania loa | ʻO ka pale ʻana o ke kahua wela, CZ Monocrystalline Silicon |
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