Passivation yog ib qho txheej txheem tseem ceeb hauv kev tsim cov dovTooj liab ntawv nyiajCov. Nws ua raws li "molecular-theem shield" rau saum npoo, txhim kho kev cuam tshuam rau nws cov kev cuam tshuam rau kev ua haujlwm tseem ceeb xws li kev ua haujlwm thiab sonedability. Tsab ntawv no rho mus rau hauv kev tshawb fawb tom qab cov txheej txheem caij nplooj zeeg, kev ua lag luam ua lag luam tawm, thiab kev ua haujlwm engineering. Kev sivRiven hlauKev tawg ua piv txwv, peb yuav tshawb txog nws tus nqi tshwj xeeb hauv kev tsim hluav taws xob siab.
1. Passivation: ib "molecular-qib shield" rau tooj liab ntawv nyiaj
1.1 Yuav ua li cas cov kev ua hauj lwm txheej
Los ntawm kev kho mob lossis tshuaj kho tshuab hluav taws xob, cov txheej txheej compact 10-50nm tuab cov ntaub ntawv nyob saum npoo ntawmTooj liab ntawv nyiajCov. Suav tau tsuas yog ntawm cu₂o, teo, thiab cov organic complexes, txheej txheej no muab:
- Kev tiv thaiv lub cev:Cov oxygen diffusion coeffusent txo qis rau 1 × 10 teev cm² / s (nqis los ntawm 5 × 10⁻⁸ cm² / s rau bare tooj liab).
- Electrochemical passivation:Corrosion tam sim no ceev cov tee ntawm 10μha / cm² rau 0.1μa / cm².
- Tshuaj lom neeg inertness:Lub zog dawb dawb yog txo los ntawm 72MJ / M² rau 35MJ / M², suppressing tus cwj pwm uas muaj kev sib haum xeeb.
1.2 tsib qhov tseem ceeb ntawm passivation
| Kev Ua Haujlwm Tshuam | Tsis Yog Siv Tooj Liab Ntawv Nyiaj | Passivated Tooj Liab Ntawv Nyiaj | Yam ua kom zoo dua |
| Ntsev Tshuaj Kuaj (Teev) | 24 (pom xeb) | 500 (tsis muaj kev ua kom pom corrosion) | + 1983% |
| Kev kub-kub oxidation (150 ° C) | 2 teev (hloov dub) | 48 teev (tswj cov xim) | + 2300% |
| Cia Lub Neej | 3 lub hlis (lub tshuab nqus tsev) | 18 lub hlis (txheem ntim) | + 500% |
| Kev sib chwv tiv thaiv (Mω) | 0.25 | 0.26 (+ 4%) | - |
| High-feartency freow poob (10ghz) | 0.15db / cm | 0.16db / cm (+ 6.7%) | - |
2. Qhov "Muab ob npaug rau rab ntaj" ntawm cov neeg passive-thiab yuav ua li cas sib npaug
2.1 Ntsuas cov kev pheej hmoo
- Txo me ntsis hauv kev ua raws:Txheej passivation nce daim tawv nqaij tob (ntawm 10ghz) los ntawm 0.76μm rau 0.76μm, tab sis los ntawm kev ua kom tuab hauv 30nm, tiv taus rau hauv qab ntawm 5Nwm.
- Soldering cov nyom:Qis dua saum npoo zog nce cov solder plug ntub dej los ntawm 15 ° txog 25 °. Siv cov khoom siv ntaus (RA hom) tuaj yeem pab txhawb cov nyhuv no.
- Cov teeb meem adhesion:Resin sib txuas lus lub zog yuav poob 10-15%, uas tuaj yeem raug txiav tawm los ntawm kev sib txuas nrog roughening thiab passivation cov txheej txheem.
2.2Riven hlau's ntsuas txoj kev
Gradient passivation Technology:
- Lub hauv paus txheej:Electrochemical kev loj hlob ntawm 5nm cu₂o nrog (111) cov kev nyiam ua haujlwm.
- Nruab nrab txheej:Ib 2-3nm benzotriazole (BTA) tus kheej sib sau ua yeeb yaj kiab.
- Txheej sab nraud:Kev sib txuas ua ke coupling tus neeg sawv cev (aptes) los txhim kho resin adhesion.
Cov txiaj ntsig zoo ua tau:
| Me me | IPC-4562 YUAV TSUM | Riven hlauTooj liab ntawv ci |
| Deg tsis kam (Mω / SQ) | 00 | 220-250 |
| Tev lub zog (n / cm) | ≥0.8 | 1.2-1.5 |
| Solder koom tes tensile zog (mpa) | ≥25 | 28-32 |
| Ionic tsiv teb tsaws (μg / cmo) | I≤0.5 | 0.2-0.3 |
3. Riven hlau'S Pass pass Technology: Rov ua dua cov qauv kev tiv thaiv
3.1 Plaub-Tier tiv thaiv lub cev
- Ultra-nyias oxide tswj:Mem tes anodization ua kom tuab sib txawv hauv ± 2nm.
- Organic-Inorganic hybrid txheej:BTA thiab SILANE ua haujlwm ua ke los txo tus nqi corrosion rau 0.003mm / xyoo.
- Kev Kho Mob Sab Deg:Ntshav tu (ar / ₂ roj sib tov) restores solder solder ces kaum rau 18 °.
- Real-Lub Sij Hawm Tswj Xyuas:Ellipsometry ua kom passivation txheej txheej thickness hauv ± 0.5nm.
3.2 Qhov Pom Zoo Tshaj
- Cov av noo thiab cua sov:Tom qab 1,000 teev ntawm 85 ° C / 85% RH, DISFIGHTION HLOOV los ntawm tsawg dua 3%.
- Thermal poob siab:Tom qab 200 lub voj voog ntawm -55 ° C rau + 125 ° C, tsis muaj cov kab nrib pleb tshwm sim hauv txheej passivation (lees paub los ntawm sem).
- Tshuaj lom neeg Kuj:Kuj rau 10%% hcl vapor nce los ntawm 5 feeb txog 30 feeb.
3.3 Tau sib xyaw nyob rau hauv cov ntawv thov
- 5G millimeter-we antennas:28Ghzz cov ntxig kev txo qis txo rau tsuas yog 0.17db / cm (piv rau cov neeg sib tw '0.21db / cm).
- Automotive Electronics:Dhau ISO 16750 "Kev Ntsuas Ntsev Ntsev, Nrog Txuas Mus Rau 100.
- IC substrates:Adhesion lub zog nrog Abf Resin ncav cuag 1.8n / cm (kev lag luam nruab nrab: 1.2n / cm).
4. Lub neej yav tom ntej ntawm passivation technology
4.1 atomic txheej tso nyiaj (ALD)
Tsim Nanolaminate Passivation cov yeeb yaj kiab raws li al₂o₃ / ti₂:
- Qhov tuab:<5nm, nrog resistivity nce ≤1%.
- Caf (txhais lus Anodic filament) Kuj:5x kev txhim kho.
4.2 Kev Kho Mob Rau Yus Tus Kheej Passivation Txheej
Sib koom ua ke microcape corrosion inhibitors (benzimidazole derivatives):
- Kev Kho Mob Rau Yus Tus Kheej:Tshaj 90% nyob rau hauv 24 teev tom qab khawb.
- Kev Pab Lub Neej:Txuas rau 20 xyoo (piv rau tus txheej txheem 10-15 xyoos).
Xaus:
Passivation kev kho kom ua tiav qhov sib npaug ntawm kev tiv thaiv nruab nrab ntawm kev tiv thaiv thiab kev ua haujlwm rau dovTooj liab ntawv nyiajCov. Los ntawm kev tsim kho tshiab,Riven hlauTsawg dua cov neeg them nyiaj poob qis, tig nws mus rau hauv "tsis pom cov cuab yeej" uas txhawb cov khoom muaj kev ntseeg tau. Raws li cov kev lag luam hluav taws xob txav mus rau qhov ceev dua thiab kev ntseeg tau, meej thiab tswj tau lub pob zeb uas tau sib xyaw ua ke.
Lub Sijhawm Post: Mar-03-2025