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What should we pay attention to in soldering PCB?

The following points we should pay attention to in soldering PCB: 1)The soldering temperature and environment; 2)The soldering method, such as if the PCB has components in both sides( In order to avoid components falling, pads rub off and board broken.) 3)Component soldering order:Resistor-Capacitor-Diode-Triode-Integrated Circuit-High Power Valve( From small size to big one) 4)Soldering way: Based […]

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EDM Machine Quick-Turn PCB Assembly /HASL 58pcba

Supplier: Shenzhen Grande Electronic Layers:4 Application: EDM Machine Quick-Turn PCB Assembly /HASL 58pcba PCB:FR4/1.6mm/1oz Min Via: 0.2mm Surface Treatment: HASL PCBA Lead time: 3-4 weeks Testing: 100% E-test Standard Warp:<0.75% [Description] 1, Turnkey solution for EDM Machine Quick-Turn PCB Assembly /HASL 58pcba 2, PCB Assembly, PCB fabrication / PCB layout, PCB Reversing. 3,  Full Bespoke PCBA/ OEM/ EMS(Electronics Manufacturing Services). 4, SMT&DIP&PTH&BGA. […]

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Signal Generators Full Turn-Key PCB Assembly / PCBA Partner China

Supplier: Shenzhen Grande Electronic Layers: 4 Application: Signal Generators Full Turn-Key PCB Assembly / PCBA Partner China  PCB:FR-4/1.6mm, 2oz finished copper Surface Treatment: HASL PCBA Lead time: 3-4 weeks Packing: Anti-static bag and compartmental packing Standard Warp: <0.75% [Description] 1, Turnkey solution for Signal Generators Full Turn-Key PCB Assembly / PCBA Partner China  2, PCB Assembly, PCB fabrication / PCB layout, PCB re-layout. 3, Electronic […]

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Level Meter Measuring Multilayer PCB Prototype and Assembly Service / Yellow Solder Mask

Supplier: Shenzhen Grande Electronic Layers: 4 Application: Level Meter Measuring Multilayer PCB Prototype and Assembly Service / Yellow Solder Mask PCB:FR-4/1.6mm, 2oz finished copper Surface Treatment: HASL PCBA Lead time: 3-4 weeks Packing: Anti-static bag and compartmental packing Standard Warp: <0.75% [Description] 1, Turnkey solution for Level Meter Measuring Multilayer PCB Prototype and Assembly Service / Yellow Solder Mask 2, PCB Assembly, PCB fabrication / […]

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Level Sensor PCB Prototype Assembly / HASL FR4 Grande China

Supplier: Shenzhen Grande Electronic Layers: 4 Application: Level Sensor PCB Prototype Assembly / HASL FR4 Grande China PCB:FR-4/1.6mm, 1oz finished copper Surface Treatment: HASL PCBA Lead time: 3-4 weeks Packing: Anti-static bag and compartmental packing Standard Warp: <0.75% [Description] 1, Turnkey solution for Level Sensor PCB Prototype Assembly / HASL FR4 Grande China 2, PCB Assembly, PCB fabrication / PCB layout, PCB re-layout. 3, Electronic […]

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Boolean Girl Project

ExpressPCB is proud to support a great Project! Boolean Box is a self-contained computer engineering kit for girls (and boys), designed for ages 8 and up. At our startup, Boolean Girl, we’ve taught hundreds of girls in our camps and classes to code using these simple, fun kits. As soon as they got their hands on […]

Blog-neuroprosthetic

Modular Neuroprosthetic

The goal for this project is to produce a low cost modular neuroprosthetic.  By making the arm modular and localizing motors and their controllers within the components they control, the arm can be configured to fit multiple different kinds of amputees.  The user control aspect is also quite different from most neuroprosthetics. I hoped to […]

Blog-whitaker-amp

WhitakerAudio 40 W Stereo Amplifier

WhitakerAudio – ExpressPCB Customer Spotlight The 40 W XL Stereo Power Amplifier is an all vacuum tube design intended for moderate power output levels. A tube-based amplifier imposes some unusual requirements on circuit board design, notably high operating voltages and considerable heat from the active devices. The typical operating voltage of this amplifier (plate voltage) is 425 Vdc. […]

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Wind Reader

Victor Fraenckel designed and built the “WindReader”, a device that measures the wind’s speed and direction. The instrument combines a commercially available theodolite telescope with custom electronics. The operator uses the WindReader to track a helium balloon as it ascends in the atmosphere to as high as 15,000 feet. The optical theodolite is adapted to include […]