High Tg Thick Copper PCB: When Both Are Needed A high Tg thick copper board combines two separate requirements in one laminate: a resin system that stays rigid at elevated temperature, and copper layers heavy enough to carry current or spread heat. Each is available on its own, and combining…

PCB Expedite A Build: When It Has to Be Now Modern electronics depend on boards that are assembled correctly the first time. Every product – a phone, a charger, a medical instrument or an industrial controller – relies on thousands of solder joints that must conduct current for years. This…

Heat Sink Mounting and PCB Thermal Design Adding a heat sink to a hot component is the obvious answer to a thermal problem, and it is often the wrong one. The heat sink is only the last element in a chain that runs from the silicon junction, through the die…

PCB Supplier Scorecard: Measuring a Supplier Modern electronics depend on boards that are assembled correctly the first time. Every product – a phone, a charger, a medical instrument or an industrial controller – relies on thousands of solder joints that must conduct current for years. This article explains PCB supplier…

PCB Lead Time Planning: Working Backwards Buyers and engineers often focus on the finished product and forget the production line behind it. In practice, most field failures can be traced back to process decisions made during assembly. Understanding PCB lead time planning gives you a practical advantage when you choose…

PCB Storage Racking: Where the Boards Live Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB storage racking from the perspective of a PCBA factory floor, covering choosing…

PCB Contract Manufacturer Selection: Choosing a Builder Electronics manufacturing has become a discipline of small details. Solder paste volumes, placement accuracy, temperature profiles and inspection limits all add up to the final result. This guide looks at PCB contract manufacturer selection from the perspective of a PCBA factory floor, covering…

Reflow Profile for Boards With Mixed Thermal Mass A board with a heavy connector at one end and a fine pitch package at the other cannot reach the same temperature everywhere at the same time. The single profile that suits both is a compromise, and understanding the compromise is what…

Level Shifter Interface Circuit Design Modern boards mix logic families, and a 3.3 volt processor often has to talk to a 5 volt peripheral or a 1.8 volt radio. Connecting them directly risks both damage and unreliable operation, so a level shifter is inserted between the two domains. The circuit…

Solder Mask Printing: Process Steps And Controls Solder mask is applied over the whole panel and then patterned, which means the printing step is only one part of a sequence. Getting it right depends on what happened before the ink touched the board and what happens after it is exposed,…