Dear customers, Please kindly have an alert that according to our project experience, we foresee that many ICs will be in very tight supply or even out of stock for a long time, so please schedule your crucial projects of 2021 beforehand. : For more details, please have an alert to this news, down load Electronic Components Price Increase Reminder_Weller Technology Co., Limited

Faq Category: PCB Assembly

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Questions

Do you do PCB and electronics baking process before assembly?

All the print circuit boards received by WELLER will be determined to be purposely baked at below condition before release it to assembly process: A minimum of 4 hours at 125°C and a maximum of 16 hours would meet IPC-1601 standards (Printed Board Handling and Storage Guidelines). Moisture barrier bags in a range of sizes were … Continued

What files do you need for PCB assembly and mold injection?

What files do you need for PCB assembly and mold injection? 1. PCB specifications like below: Based material: FR-4? Board thickness: 1.6mm? Copper thickness: 1oz? Solder mask color: Green? Silkscreen color: White? Surface treatment: HASL lead free, immersion gold…? 2. PCB Gerber files (in RS274-X format) 3. BOM list in excel format 4. Mold design … Continued

Are you able to put Bare die on the PCB’s?

What wire bond options do you have? Do you have Au and Al bond wire? Do you have ribbon and/or wire bonding? Weller: Al bond wire is popular to us, but Au is rarely used , so we would suggest to Al boding wire.

What is clean and non clean process of a PCBA

What is clean PCB assembly process? It is processed with clean-needed solder paste composed by a type of Water Soluble Flux,which can provide excellent soldering performance. But with it’s flux residues left after soldering process is very sensitive and reactive to water so it is easy to corrode PCB board. Hence, it is necessary to … Continued

What is the necessary document for PCBA quote or order?

Documents Required to Quote or Order a PCB Assembly               What do you need to get a quote on a PCB assembly? This is a great question and often a source of confusion. There are four basic documents and exactly how they are transmitted depends on your company’s tools; … Continued

Do you have Quick Turn PCB Assembly Services.

Yes, Weller can provide Prototype PCB Assembly as Quick as 1 Day. Our printed circuit board assembly service is South China’s leading one-stop solution for PCB and assembly under one roof; specializing in small and medium runs with fast lead-times and no minimum quantity requirement.

Do you offer RoHS-compliant assemblies

Yes. Normally all our PCB board material used and  PCB manfuactured by lead free process unlesse customer have other options.Anyway,all our PCB assembly process are lead free process which can 100% meet RoHS-compliant

What is the lead time for a turnkey PCBA order?

Assembly lead times quoted to the customer exclude the procurement lead time. The lead times for the turnkey PCB assembly order entirely depend on the time required to source the part. The assembly begins only after all the components are available in the inventory. Weller Technology sometimes have special routing to by the some curcial … Continued

How can I provide components for the assembly?

Usually customer is interested to ship the components to us from outside of China intead of we purchasing that.But please note that normally China custom will charge extra duty taxes as below approximately: ICs: 13% depending on the unit cost LED, connectors.resistors and capacitors: 30%-50% extra taxesThe long lead time on the custom clearance process. … Continued

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