Kubudirira mukugadzira zvinhu zvisina dambudziko kuburikidza nematanho mana ehunyanzvi
I. Ruzivo rweTechnical: Kudzora Kwakarurama kweSolder Paste Deposition
Ruzivo rweIndasitiri: "60%-70% zvikanganiso zvekusungirirwa zvinobva pakudhinda (IPC-7525 7.1.2). Kuisa zvinhu nemazvo ndiyo nzira yekutanga yekudzivirira."
Zvinangwa zvekudzora huwandu
| Chiyero | Zvinodiwa Zvakajairika | Referensi yeIPC |
|---|---|---|
| Kururama kweVhoriyamu | Mwero weKutamisirwa > 85%, CPK ≥ 1.67 | J-STD-005 4.3.2 |
| Kuvimbika kweChimiro | Kudonha ≤ 10%, Hapana Kudonha/Kudonha | IPC-SM-817 3.2.1 |
| Kururama kweChinzvimbo | Kubvisa ≤ 15% yehupamhi hwePad | IPC-A-610H 8.2.3.4 |
II. Kugadzirisa Zvakadzama Mapango Mana Ehunyanzvi
1. Dhizaini yeStencil: Template Yakanyatsojeka yeNano-scale
- ·Kucheka neLaser + electropolishing (Ra ≤ 0.6μm, inoenderana neClass 3)
- ·Kureba kwematanho ekukwira/kudzika ≤ 0.08mm (dhizaini yekudzivirira kudonha kwebanga)
- ·SiN nano-coating inoderedza zvikanganiso zvebhora re solder ne38%
- ·Dhizaini ye micro aperture yezvikamu zve 01005 (chiyero chenzvimbo ≥ 0.71)
Kufambiswa Kwebasa Rekusimbisa Dhizaini: PCB → DFM → Muenzaniso → Kugadzirwa Kwakawanda
2. MaParamita Ekudhinda: Kudzora Kwakangwara Kwakavharwa
| Paramita | Range Yakajairika | Njodzi Yekusvika Panjodzi |
|---|---|---|
| Kumanikidzwa kweSqueegee | 100 ± 20 g/mm | >150 g/mm → kushandurwa kwestencil |
| Kukurumidza Kuparadzanisa | 1.5 ± 0.5 mm/s | >3 mm/s → kutema matombo +250% |
| Mamiriro Ekunze | 23 ± 1℃ / 50 ± 5% RH | ΔT > 3℃ → kushanduka kwevhoriyamu ±12% |
Kudzora kweAI Closed-loop: Kutarisa kweSPI → LSTM modhi → muripo unochinja-chinja → CPK ≥ 2.0
3. Solder Paste: Kutevedza Kwakazara Kwehupenyu Hwako
- ·Kuchengetera zvinhu zvinotonhora pa -40℃
- ·Kudziya zvishoma nezvishoma: 5℃ maawa maviri ega ega kusvika pakupisa kwemukamuri
- ·Kusanganisa kweCentrifugal: 1200 rpm kwema180s
- ·Kutarisa kusimba kwesimba: 850 ± 30 kcps
- ·Nguva yekuvhura: ≤ maawa makumi manomwe nemaviri
- ·Kusunga kweMES batch kuti kutevereke
4. Kuchenesa Stencil: Guarantee yeZero-Residue
| Nzira Yekuchenesa | Kakawanda | Nzira Yekusimbisa |
|---|---|---|
| Pukuta neOma + Vacuum | MaPCB mashanu ega ega | Kuongorora Maikorosikopu kwe50x |
| Kuchenesa Zvakadzika | Maminetsi makumi matatu ega ega | Zvakasara zveGravimetric |
Maitiro Ekubvisa Zvimedu: Kusimba 50,000 prints
III. Kukosha kweMutengi: Kuvandudzwa kweHunhu Hwakakosha
| Chiyero | Pamberi | Mushure me | Mamiriro ezvinhu |
|---|---|---|---|
| Kubudirira Kwekutanga | 82% | 99.1% | 0.4mm kukwirira QFN |
| Mwero Wakakwana Wekuremara | 850 PPM | 62 PPM | BGA yeMotokari (X-Ray) |
| Mari Yokugadzirisazve | $12k/mwedzi | $0.8k/mwedzi | Mutsetse wePCBA wekurapa |
Bhokisi: Smartwatch mainboard ine huwandu hwezvikamu zve 01005 haina kukanganisa bhora re solder ne nano-coated stencil.
IV. Muganho weMaindasitiri: Nguva yeKudhinda Kwakangwara
Mepu yeTekinoroji
- ·2024: Kutevedzera mapatya edhijitari ekudhinda stencil
- ·2025: Sisitimu yeAi squeegee inochinjika
- ·2026: Kudzora reactivity ye solder paste paste paste paste padanho remamorekuru
Ruzivo rweNyanzvi
"23.7% goho rakawanikwa nekuvandudza kurongeka kwehuwandu hwepaste kubva pa ±15% kusvika ±8% (SMTA 2023-PT-087).
Tekinoroji yemapazi mana inowedzera kukanganisa kwekudhinda MTBA (Mean Time Between Defects) kusvika maawa 1200."
Mareferensi
- 1.IPC-7525C “Nhungamiro dzeKugadzira Stencil”
- 2.J-STD-005B “Zvinodiwa Pakusanganisa Mapendi”
- 3. SMTA White Paper: “Solder Paste Deposition Metrics” (2023)
- 4.IEC 61191-3:2017 “Misangano yeBhodhi Rakadhindwa - Chikamu 3”
