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Populated (rear) and unpopulated (front) TSOP land patterns on a printed circuit board. A row of through-holes acting as the footprint for a pin header.. A footprint or land pattern is the arrangement of pads (in surface-mount technology) [1] or through-holes (in through-hole technology) used to physically attach and electrically connect a component to a printed circuit board.
In beam-lead technology, the metallized pads that would be used for wire bonding connections in a conventional chip are thickened and extended to allow external connections to the circuit. Assemblies using "bare" chips have additional packaging or filling with epoxy to protect the devices from moisture.
Endcaps at a Walmart store. In retail marketing, an endcap, end cap, Free Standing Display Unit (FSDU), or gen-end (general end shelving) is a display for a product placed at the end of an aisle. It is perceived to give a brand a competitive advantage. [1] It is often available for lease to a manufacturer in a retail environment.
The QIL design increased the spacing between solder pads without increasing package size, for two reasons: It allowed more reliable soldering. This may seem odd today, given the far closer solder pad spacing in use now, but in the 1970s, the heyday of the QIL, bridging of neighbouring solder pads on DIL chips was an issue at times,
Some QFP packages have an exposed pad. The exposed pad is an extra pad underneath or on top of the QFP that may act as a ground connection and/or as a heat sink for the package. The pad is typically 10 or more mm 2, and with the pad soldered down onto the ground plane, heat is passed into the PCB. This exposed pad also gives a solid ground ...
Pad printing (also called tampography) is a printing process that can transfer a 2-D image onto a 3-D object (e.g., a ceramic pottery).This is accomplished using an indirect offset printing process that involves an image being transferred from the cliché via a silicone pad onto a substrate.
Size: 8 x 8 mm. Out of patent IBM ThinkPad caps (left-to-right): Soft Dome, Soft Rim, Classic Dome, Eraser Head (discontinued) A pointing stick (or trackpoint , also referred to generically as a nub or nipple ) is a small analog stick used as a pointing device typically mounted centrally in a computer keyboard .
Polaroid Zink printer Dell Wasabi PZ310 Zink printer Polaroid Socialmatic Zink camera. Zink (stylised as ZINK, a portmanteau of zero and ink) is a full-color printing technology [1] for digital devices that does not require ink cartridges and prints in a single pass.
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