Double sided pcb Normal pcb Lead free HASL Counterbore Manufacturer | YMS PCB
HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in Fanadihadiana .
HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).
The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). This solder will cover all the exposed copper surfaces. Upon retraction from the solder, high pressure hot air is blown over the surface through air knives, this levels the solder deposit and removes the excess solder from the surface of printed circuit boards.
Fampidirana ny birao fanaovana pirinty vita pirinty
Birao Circuit Normal: Most PCBs for simple electronics are simple and composed of only a single layer. More sophisticated hardware such as computer graphics cards or motherboards can have 2 or multiple layers, sometimes up to twelve.
A printed circuit board (PCB) mechanically supports and electrically connects electrical or electronic components using conductive tracks, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. Components are generally soldered onto the PCB to both electrically connect and mechanically fasten them to it.PCBs can be single-sided (one copper layer), double-sided (two copper layers on both sides of one substrate layer), or multi-layer (outer and inner layers of copper, alternating with layers of substrate). Multi-layer PCBs allow for much higher component density, because circuit traces on the inner layers would otherwise take up surface space between components. The rise in popularity of multilayer PCBs with more than two, and especially with more than four, copper planes was concurrent with the adoption of surface mount technology.
What is the difference between a Countersink and a Counterbore?
Fahaiza-manao YMS PCB mahazatra:
| YMS Fanadihadiana fahaizan'ny PCB mahazatra mahazatra | ||
| endri-javatra | fahaiza-manao | |
| Isan'ny sosona | 1-60L | |
| Misy Teknolojia PCB mahazatra | Amin'ny alàlan'ny lavaka miaraka amin'ny Aspect Ratio 16: 1 | |
| nalevina ary jamba via | ||
| mifangaro | Fitaovana matetika matetika toy ny RO4350B sy FR4 Mix sns. | |
| Fitaovana haingam-pandeha toy ny M7NE sy FR4 Mix sns. | ||
| ara-nofo | CEM- | CEM-1; CEM-2, CEM-4, CEM-5.etc |
| FR4 | EM827, 370HR, S1000-2, IT180A, IT158, S1000 / S1155, R1566W, EM285, TU862HF, NP170G sns. | |
| Haingam-pandeha | Megtron6, Megtron4, Megtron7, TU872SLK, FR408HR, N4000-13 Series, MW4000, MW2000, TU933 sns. | |
| Fahita matetika | Ro3003, Ro3006, Ro4350B, Ro4360G2, Ro4835, CLTE, Genclad, RF35, FastRise27 sns. | |
| Ny hafa | Polyimide, Tk, LCP, BT, C-ply, Fradflex, Omega, ZBC2000, PEEK, PTFE, ceramic-based sns. | |
| hateviny | 0.3mm-8mm | |
| Max.copper matevina | 10OZ | |
| Tsipika faran'ny ambany sy habakabaka | 0.05mm / 0.05mm (2mil / 2mil) | |
| BGA PITCH | 0,35 mm | |
| Min mekanika namboarina habe | 0.15mm (6mil) | |
| Aspect Ratio amin'ny alàlan'ny lavaka | 16: 1 | |
| Vita ny etona | HASL, HASL maimaim-poana, ENIG, firoboka ao anaty rano, OSP, volom-boaloboka, rantsantanana volamena, volamena mafy elektrika, OSP voafantina, ENEPIG.etc. | |
| Amin'ny alàlan'ny Safidy famenoana | Ny via dia nopetahany takelaka ary nofenoina epoxy conductive na tsy conductive avy eo notapenana sy nopetahana (VIPPO) | |
| Fenoy varahina, feno volafotsy | ||
| fisoratana anarana | ± 4mil | |
| Saron-tava solder | Green, Red, Yellow, Blue, White, Black, Purple, Matte Black, Matte green. | |
Mety tianao:
1, Summary of matters needing attention in circuit board welding
3, What is PCB
4、Inona no atao hoe fanandramana tsy misy saina?
5. Inona no famolavolana PCB avo lenta
Mianara bebe kokoa momba ny vokatra YMS
