PCB Board factory
Тип статьи:
Рецензия
| HASL: Hot air solder spraying is a step and process flow in the production process of electronic board. Specifically, immerse the PCB into the molten solder pool, so that all exposed copper surfaces will be covered by solder, and then remove the excess solder on the PCB through a hot-air cutter. Because the surface of the circuit board after tin spraying is the same material as the solder paste, the welding strength and reliability are good. However, due to its processing characteristics, the surface flatness of tin spraying treatment is not good, especially for small electronic components such as BGA. Due to the small welding area, if the flatness is poor, it may cause problems such as short circuit. Therefore, a process with good flatness is needed to solve the problem of tin spraying plate. Generally, the gold plating process will be selected (note that it is not the gold plating process), and the principle and method of chemical replacement reaction will be used for reprocessing to increase the nickel layer with a thickness of about 0.03 ~ 0.05um or 6um to improve the surface flatness. PCB Standard: IPC-A-610 D Supply Ability Supply Ability: 800000 Piece/Pieces per month Packaging & Delivery Packaging Details PCB: Vacuum Packing with Carton Box PCBA: ESD Packing with Carton Box Shipping service: By EMS/DHL/FEDEX/UPS/SEA Port: ShangHai Payment Method: T/T; Paypal; Western Union; MoneyGram Product cost: 0.1 USD-8 USD Product Description Electronic printed circuit board 1: Support 48 hours make the sample, In general, samples need 3-5 working days, mass production need 8-12 working days. 2. MOQ is 1 PCS. produce rigid FR4,1-48 layer PCB. 3. Mini Line width / space:0.15mm, Minin drill holes:0.3mm 4. Pass through ISO9001/SGS/ROHS certificate 5. Support OEM design, Send us gerber file. FAQ Q1. What is your terms of packing? A: Generally, we pack our goods in neutral cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters. Q2. What is your terms of payment? A: T/T 80% as deposit, and 20% before delivery or against copy of shipping B/L. For long term business relations, we have more advantage terms for payment. Q3. What is your terms of delivery? A: EXW, FOB, CFR, CIF. Q4. How about your delivery time? A: Generally, it will take 3 to 35 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. and if the item was non standard, we have to consider extra 10-15days for tooling/mould made. Q5. Can you produce according to the samples or drawings? A: Yes, we can produce by your samples or technical drawings. Q5-1: How about tooling Charge? A: Tooling charge only charge once when first order, all future orders would not charge again even tooling repair or under maintance. Q6. What is your sample policy? A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. Q7. Do you test all your goods before delivery? A: Yes, we have 100% test before delivery Q8: How do you make our business long-term and good relationship? A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from. PCB Board factory website:http://www.rcpcba1s.com/pcb/ |