Chuck faakuumka dhoobada ee ku salaysan Alumina-ku salaysan ee loogu talagalay maaraynta Wafer khafiif ah
Qalabka daloolada leh ee ku salaysan alumina ee St.Cera waxaa laga sameeyay 99.6% nadiifnimo sare oo Al₂O₃ ah iyadoo leh dalool furan oo la xakameeyey oo ah 30-45% iyo cabbir siman oo dalool ah oo u dhexeeya 10 ilaa 50 μm. Si ka duwan qalabka daloolada leh, dusha sare ee daloolada leh waxay bixisaa faakuum qaybsan oo dhan oo ku baahsan dhabarka dambe ee wafer-ka, taasoo meesha ka saaraysa calaamadaynta geeska waxayna suurtogalinaysaa in si fudud loo hayo oo ah mid aad u khafiifsan (≤100 μm) ama wafers qalloocan. Maaddadu waxay bixisaa xoog dabacsan oo ah ≥250 MPa iyo xasillooni kuleyl ah oo ilaa 400°C ah hawada.
Tilmaamaha(oo ku salaysan 99.6% Al₂O₃):
| Hantida | Qiimaha |
| Alaab | 99.6% Alumina (Cad) |
| Daloolada daloolsan | 30–45% (la hagaajin karo) |
| Cabbirka Celceliska Godka | 10–50 μm |
| Xoogga Dabacsanaan | ≥250 MPa |
| Cufnaanta | 3.88 g/cm³ |
| Fidsanaan (in ka badan 200mm) | ≤5 μm |
| Heerkulka ugu Sareeya ee Hawlgalka | 400°C (hawada) |
| Dhammaadka Dusha Sare | La daboolay (Ra ≤0.8 μm) |
Codsiyada:
- · Wafer khafiif ah (≤50 μm) oo shiidi gadaal
- · Ku rakibidda wafer-ka qalloocan ee loogu talagalay laalaabashada
- · Soo qaadis qalabaysan oo gaar loo leeyahay
- · Maareynta walxaha galaaska
Wax soo saarka:
Budada lagu qasay daloolada → riixitaan isostatic ah → sintering heerkul ah 1600°C → oo laalaada ilaa dhumucda ugu dambeysa. Qulqul kasta waxaa lagu tijaabiyaa isku mid ahaanshaha faakuumka (kala leexashada cadaadiska <5%) waxaana la hubiyaa qaybinta cabbirka daloolka (SEM).
Faa'iidooyinka ka badan chucks-ka caadiga ah:
- · Ma jiro calaamadaynta dambe ee wafer ama wareejinta daaha
- · Waxay qabataa buskud qaanso leh ilaa 500 μm
- · Dusha is-nadiifinta (dalooladu way iska caabiyaan inay xirmaan)
- · Taageerada isku midka ah waxay meesha ka saartaa walbahaarka deegaanka
Cis-beddelidda:
Qaabab wareegsan ama laba jibbaaran, dhexroorkoodu yahay 100–450 mm. Giraanta shaabadaysan ee geeska ah ayaa diyaar u ah xakamaynta faakuumka ee aagga ku wareegsan.
Codso muunad cabbir ah oo ku saabsan cabbirkaaga gaarka ah ee buskudka.
