Perfboard

<p>Perfboard is a material for <a href="/facts/Electronic_prototype/vE4kTByH">prototyping</a> <a href="/facts/Electronic_circuits/IRfQ6Cc2">electronic circuits</a>. It is a thin, rigid sheet with holes pre-drilled at standard intervals across a grid, usually a square grid of 0.1 inches (2.54 mm) spacing. These holes are ringed by round or square copper pads, though bare boards are also available. Inexpensive perfboard may have pads on only one side of the board, while better quality perfboard can have pads on both sides (<a href="/facts/Via_(electronics)/WzYthtKS">plate-through holes</a>).  Since each pad is electrically isolated, the builder makes all connections with either <a href="/facts/Wire_wrap/MwwjB67E">wire wrap</a> or miniature <a href="/facts/Point_to_point_wiring/b8wuFuKv">point to point wiring</a> techniques. Discrete components are soldered to the prototype board such as <a href="/facts/Resistor/JrsGReM6">resistors</a>, <a href="/facts/Capacitor/hyowqv7n">capacitors</a>, and <a href="/facts/Integrated_circuit/fjn6vg7C">integrated circuits</a>. The substrate is typically made of paper laminated with <a href="/facts/Phenolic_resin/poc4M0JX">phenolic resin</a> (such as  <a href="/facts/Synthetic_resin_bonded_paper/nVzJaqfG">FR-2</a>) or a fiberglass-reinforced epoxy laminate (<a href="/facts/FR-4/JYj7rtoJ">FR-4</a>).
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Perfboard open-in-new

Perfboard