Passivation jẹ ilana mojuto ni iṣelọpọ ti yiyiEjò bankanje. O ṣe bi “asà-ipele molikula” lori dada, imudara ipata resistance lakoko ti o farabalẹ ṣe iwọntunwọnsi ipa rẹ lori awọn ohun-ini to ṣe pataki bi adaṣe ati solderability. Nkan yii n lọ sinu imọ-jinlẹ lẹhin awọn ọna ṣiṣe passivation, awọn iṣowo iṣẹ ṣiṣe, ati awọn iṣe imọ-ẹrọ. LiloCIVEN irin's breakthroughs bi apẹẹrẹ, a yoo Ye awọn oniwe-oto iye ni ga-opin Electronics ẹrọ.
1. Passivation: A "Molecular-Level Shield" fun Ejò bankanje
1.1 Bawo ni Passivation Layer Fọọmù
Nipasẹ awọn itọju kemikali tabi elekitiroki, Layer oxide iwapọ 10-50nm awọn fọọmu nipọn lori oju tiEjò bankanje. Ti a kọ ni pataki ti Cu₂O, CuO, ati awọn eka Organic, Layer yii pese:
- Awọn idena ti ara:Ìsọdipúpọ̀ ìtújáde atẹgun n dinku si 1×10⁻¹⁴ cm²/s (isalẹ lati 5×10⁻⁸ cm²/s fun bàbà igboro).
- Electrochemical Passivation:Ìwọ̀n ìbàjẹ́ lọ́wọ́lọ́wọ́ láti 10μA/cm² sí 0.1μA/cm².
- Kemikali ailagbara:Agbara ọfẹ ti oju ti dinku lati 72mJ/m² si 35mJ/m², tiipa ihuwasi ifaseyin.
1.2 Marun Key Anfani ti Passivation
| Performance Aspect | Idẹ Ejò ti ko ni itọju | Passivated Ejò bankanje | Ilọsiwaju |
| Idanwo sokiri iyo (wakati) | 24 (awọn aaye ipata ti o han) | 500 (ko si ipata ti o han) | + 1983% |
| Afẹfẹ-Iwọn otutu giga (150°C) | Awọn wakati 2 (di dudu) | Awọn wakati 48 (ntọju awọ) | + 2300% |
| Ibi ipamọ Life | Osu 3 (gbale-kojọpọ) | Awọn oṣu 18 (ti kojọpọ ni deede) | + 500% |
| Olubasọrọ Resistance (mΩ) | 0.25 | 0.26 (+4%) | – |
| Pipadanu Ifibọsi Igbohunsafẹfẹ giga (10GHz) | 0.15dB/cm | 0.16dB/cm (+6.7%) | – |
2. “Idà Oloju Meji” ti Awọn Layer Passivation — ati Bi o ṣe le Ṣe iwọntunwọnsi Rẹ
2.1 Iṣiro awọn ewu
- Idinku diẹ ninu Iṣeṣe:Layer passivation mu ki ijinle awọ ara pọ si (ni 10GHz) lati 0.66μm si 0.72μm, ṣugbọn nipa titọju sisanra labẹ 30nm, awọn ilọsiwaju resistance le ni opin si labẹ 5%.
- Awọn italaya tita:Isalẹ agbara dada mu solder wetting awọn igun lati 15° si 25°. Lilo awọn pastes solder ti nṣiṣe lọwọ (Iru RA) le ṣe aiṣedeede ipa yii.
- Awọn oran Adhesion:Agbara isunmọ resini le ju silẹ 10–15%, eyiti o le dinku nipasẹ apapọ awọn ilana roughening ati passivation.
2.2CIVEN irin's Iwontunwonsi ona
Imọ-ẹrọ Passivation Gradient:
- Ipilẹ Layer:Idagba elekitirokemika ti 5nm Cu₂O pẹlu (111) iṣalaye ti o fẹ.
- Layer agbedemeji:Fiimu ti ara ẹni 2–3nm benzotriazole (BTA).
- Layer ita:Aṣoju idapọ Silane (APTES) lati jẹki ifaramọ resini.
Awọn abajade Iṣe iṣapeye:
| Metiriki | IPC-4562 ibeere | CIVEN irinEjò bankanje Results |
| Atako Oju (mΩ/sq) | ≤300 | 220–250 |
| Agbara Peeli (N/cm) | ≥0.8 | 1.2–1.5 |
| Solder Apapọ Agbara Agbara (MPa) | ≥25 | 28–32 |
| Oṣuwọn Iṣilọ Ionic (μg/cm²) | ≤0.5 | 0.2–0.3 |
3. CIVEN irinImọ-ẹrọ Passivation's: Itumọ Awọn ajohunše Idaabobo
3.1 A Mẹrin-Tier Idaabobo System
- Iṣakoso Afẹfẹ Afẹfẹ-Tinrin:Pulse anodization ṣe aṣeyọri iyatọ sisanra laarin ± 2nm.
- Awọn fẹlẹfẹlẹ arabara Organic-Inorganic:BTA ati silane ṣiṣẹ papọ lati dinku awọn oṣuwọn ipata si 0.003mm / ọdun.
- Itọju Imuṣiṣẹ Dada:Pilasima mimọ (Alapọ gaasi Ar/O₂) ṣe atunṣe awọn igun ririn solder pada si 18°.
- Abojuto Igba-gidi:Ellipsometry ṣe idaniloju sisanra Layer passivation laarin ± 0.5nm.
3.2 Ifọwọsi Ayika to gaju
- Ọriniinitutu giga ati Ooru:Lẹhin awọn wakati 1,000 ni 85 ° C / 85% RH, iyipada oju-aye nipasẹ o kere ju 3%.
- Gbona Shock:Lẹhin awọn akoko 200 ti -55°C si +125°C, ko si awọn dojuijako ti o han ninu Layer passivation (ti o jẹri nipasẹ SEM).
- Atako Kemikali:Resistance si 10% HCl oru pọ lati iṣẹju 5 si 30 iṣẹju.
3.3 Ibamu Kọja Awọn ohun elo
- 5G Awọn eriali-Igbi Igbi:Pipadanu ifibọ 28GHz dinku si 0.17dB/cm o kan (fiwera si 0.21dB/cm awọn oludije).
- Awọn Itanna Ọkọ ayọkẹlẹ:Ṣe awọn idanwo sokiri iyọ ISO 16750-4, pẹlu awọn gigun gigun si 100.
- Awọn sobusitireti IC:Agbara ifaramọ pẹlu resini ABF de 1.8N/cm (apapọ ile-iṣẹ: 1.2N/cm).
4. Ojo iwaju ti Passivation Technology
4.1 Atomic Layer Deposition (ALD) ọna ẹrọ
Dagbasoke awọn fiimu passivation nanolaminate ti o da lori Al₂O₃/TiO₂:
- Sisanra:<5nm, pẹlu ilosoke resistivity ≤1%.
- CAF (Conductive Anodic Filament) Resistance:5x ilọsiwaju.
4.2 Ara-iwosan Passivation Layer
Pipọpọ awọn inhibitors ipata microcapsule (awọn itọsẹ benzimidazole):
- Imudara Iwosan Ara-ẹni:Ju 90% laarin awọn wakati 24 lẹhin awọn irẹwẹsi.
- Igbesi aye iṣẹ:Tesiwaju si ọdun 20 (akawe si awọn ọdun 10-15 boṣewa).
Ipari:
Itọju Passivation ṣe aṣeyọri iwọntunwọnsi isọdọtun laarin aabo ati iṣẹ ṣiṣe fun yiyiEjò bankanje. Nipasẹ imotuntun,CIVEN irindinku awọn ipadasẹhin passivation, yiyi pada si “ihamọra alaihan” ti o ṣe alekun igbẹkẹle ọja. Bi ile-iṣẹ eletiriki ti n lọ si iwuwo giga ati igbẹkẹle, kongẹ ati igbafẹ idari ti di okuta igun-ile ti iṣelọpọ bankanje bàbà.
Akoko ifiweranṣẹ: Mar-03-2025