haen aur bys 8 pcb
| Eitemau | Datas technegol | |
| haenau | Haen 1-12 | |
| Deunyddiau sylfaen | CEM 3, FR-4，alwminiwm, CEM-1, 22F, FR-1 | |
| Trwch Bwrdd | 0.3 mm-3.20 mm (12mil-126mil) | |
| Trwch Bwrdd craidd gofynnol | 0.1mm(4mil) | |
| Trwch copr | 1/2 owns min; 3 owns uchafswm. | |
| Isafswm lled/llinellau | 0.1mm(4mil) | |
| Diamedr twll gofynnol | 0.25mm(10mil) | |
| Twll PTH goddefgarwch | 0.9mm(35mil) | |
| Goddefgarwch | Safle twll | ±0.075mm(3mil) |
| Lled llinell | ±0.1 mm (4mil) neu % ±20 lled llinell | |
| Maint y twll | PTH±0.1mm(4mil) | |
| NPTH±0.075mm(3mil) | ||
| Goddefgarwch allanol | Neuadd machine±0.15MM(6mil) | |
| Pwnsh peiriant ±0.10mm(4mil) | ||
| Twist a oes arall | 0.70%-1% | |
| Mae'r arwyneb yn gorffen | Aer blatio/Entek/poeth nicel/aur a lefelu | |
| inswleiddio ymwrthedd | 10KΩ-20MΩ | |
| dargludiad ymwrthedd | < 50Ω | |
| Profion foltedd | 300V | |
| Toriad V | Maint y Panel | 110×100mm(min.) 660×600mm(max.) |
| Trwch Bwrdd | min 0.6 mm (24mil). | |
| Trwch sy'n weddill | min 0.3 mm (12mil). | |
| Goddefgarwch | ±0.1mm(4mil) | |
| slot o led | 0.50 mm (20mil) uchafswm. | |
| Slot amser lled | 10mm min. | |
| Amser i linell | munud 0.50 mm (20mil). | |
| Slot wedi'i | Slot maint tol. > = goddefgarwch 2W | PTH L:±0.15mm(6mil) |
| W:±0.1mm(4mil) | ||
| NPTH L:±0.125mm(5mil) | ||
| W:±0.1mm(4mil) | ||
| Goddefgarwch cofrestru gofynnol twll | PTH Hole:0.13mm(5mil) | |
| NPTH Hole:0.18(7mil) | ||
| Cofrestru dim goddefgarwch o flaen/yn ôl delwedd | Goddefgarwch cofrestru gofynnol patrwm | 0.075mm(3mil) |
| multilayer | Interlayer goddefgarwch | Haen 4: 0.15 mm (6mil) uchafswm. |
| haenau: 0.025 6 mm (10mil) uchafswm. | ||
| Pellter gofynnol rhwng twll a roundness mewnol | 0.25mm(10mil) | |
| Ymyl Bwrdd isafswm pellter a roundness mewnol | 0.25mm(10mil) | |
| Goddefiant trwch Bwrdd | 4 layers:±0.13mm(5mil) | |
| 6 layers:±0.15mm(6mil) | ||
| rhwystrol naturiol | 60% yn ohm±10 | |
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