Frank Guo - Kingda - Page 82 Of 591

Reflow Oven Loading: 5 Rules for Even Heating

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Reflow Oven Loading: 5 Rules for Even Heating Reflow oven loading is the way boards are arranged on the belt as they enter the oven, and it changes the thermal profile of every board in the batch. A single board run alone heats faster than a full belt, and a…

Pull Strength: Design Rules and Process Limits

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Pull Strength: Design Rules and Process Limits Pull strength testing measures the force needed to separate a component lead or a wire from its solder joint, and it is the most direct check a shop has on the mechanical quality of that joint. The number it produces is only useful…

SMD vs SMT: Understanding the Key Differences in PCB Assembly

Mouse Bite Tabs: A Complete Depaneling Guide

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Mouse Bite Tabs: A Complete Depaneling Guide A mouse bite is the row of small perforations that joins a panel to its frame or to a neighbouring board and lets the assembly be snapped apart after soldering. The break is quick and needs no machine, which is why the process…

Panel Rail Width: A Complete Design Guide

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Panel Rail Width: A Complete Design Guide Panel rail width is the width of the material left along the edges of a production panel so that the assembly can be handled, printed and conveyed without touching the boards themselves. It looks like a trivial layout detail and it is one…

X-Ray Void Measurement: A Complete Inspection Guide

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

X-Ray Void Measurement: A Complete Inspection Guide X-ray void measurement is the practice of imaging a solder joint from above, counting the dark areas inside it and reporting the result as a percentage of joint area. It is the only practical way to see inside a ball grid array joint…

Water Jet Depaneling: A 5-Rule Process Guide

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Water Jet Depaneling: A 5-Rule Process Guide Water jet depaneling cuts a panel with a very narrow, very fast stream of water, usually carrying an abrasive grit. The cut is cold, it works on any material in the stack, and it leaves no heat-affected zone, which is why the process…

Paste Inspection System: A 6-Point Selection Guide

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Paste Inspection System: A 6-Point Selection Guide A paste inspection system photographs the deposits on a board after printing and reports their volume, area and position. It is the only measurement in a solder paste printing process that looks at every board at production speed, which makes it the fastest…

Routing Bit Selection: 5 Rules for Clean Depaneling

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Routing Bit Selection: 5 Rules for Clean Depaneling A routing bit is the carbide cutter that separates boards from a panel along a programmed path. It removes material rather than fracturing it, so the edge it leaves is machined and the stress it puts into the assembly is low. The…

Vacuum Nozzle Care: A 6-Point SMT Maintenance Guide

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Vacuum Nozzle Care: A 6-Point SMT Maintenance Guide A vacuum nozzle is the small tip on a placement spindle that holds a component by vacuum until the head reaches the pad and the part is released. It is the last mechanical interface before placement, so its condition sets pickup reliability…

Mask adhesion check on an SMOBC board after plating

Paste Bead Control: 5 Rules for a Stable Print

By Frank guo
2026年 9月 13日
PCB Assembly
No Comments

Paste Bead Control: 5 Rules for a Stable Print Paste bead control is the practice of keeping the roll of solder paste that sits ahead of the squeegee at the right volume, the right shape and the right temperature for the whole print stroke. A bead that is correct pushes…

Reflow Oven Loading: 5 Rules for Even Heating

Pull Strength: Design Rules and Process Limits

Mouse Bite Tabs: A Complete Depaneling Guide

Panel Rail Width: A Complete Design Guide

X-Ray Void Measurement: A Complete Inspection Guide

Water Jet Depaneling: A 5-Rule Process Guide

Paste Inspection System: A 6-Point Selection Guide

Routing Bit Selection: 5 Rules for Clean Depaneling

Vacuum Nozzle Care: A 6-Point SMT Maintenance Guide

Paste Bead Control: 5 Rules for a Stable Print

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