by John Walt Childers, IPC-CID, Founder of Golden Gate Graphics
Golden Gate Graphics is an official Altium Service Bureau
Terms that contain digits are alphabetized as if the numeric characters were spelled in English.
Terms with two or more words are alphabetized "dictionary style." They are alphabetized as though the spaces between the terms have been removed.
If there are other characters in the term, such as a slash (/), these are treated the same as spaces and ignored for the purpose of alphabetizinig.
laser photoplotter (also "laser plotter") A photoplotter which simulates a vector photoplotter by using software to create a raster image of the individual objects in a CAD file, then plotting the image as a series of lines of dots at very fine resolution. A laser photoplotter is capable of more accurate and consistent plots than a vector photoplotter.
lead frame (LEED-fraym) Pronunciation Key noun [Component Manufacturing] The metal frame that semiconductors are attached to during the package assembly process.
Typically a lead frame is a long metal frame with positions for multiple chips.
After the chips are attached to the lead frame tiny wires are used to connect the chip bond pads to the frame and then the positions on the frame where chips are located are encapsulated in epoxy. (shown in Fig. 6.77).
At this point, the leadframe package goes through a solder plating process whereby the metal fram with the leads are plated with a tin-lead or lead-free tin or tin alloy finish. After the plating step, the metal frame goes through a trim-and-form process whereby leads are separated from the frame and each package is diced, separated and made ready for assembly (Fig. 6.78). Leadframes_Modern_Electroplating_5th Ed_Mordechay_Schlesinger
LGA (EL GEE AY) Pronunciation Key
liquid photoimageable solder mask (LPI) A mask sprayed on using photographic imaging techniques to control deposition. It is the most accurate method of mask application and results in a thinner mask than dry film solder mask. It is often preferred for dense SMT.
LPI stands for Liquid PhotoImageable. Refers to liquid photoimageable solder mask.
This is the best, most usable dictionary for electronics, because its
definitions help you grasp the terms and therefore the subject. Lesser
dictionaries define electronics terms with even more difficult technical
jargon, leading one into endless "word chains." Not this one.
You can buy the Modern Dictionary of Electronics new or used via the Internet.
You need a big, comprehensive dictionary. Get this one. Despite being a big dictionary, The Random House has great definitions, quick to grasp.
Although out of print, as of 2020 you could still buy a great used copy online for $30 including shipping or possibly for much less. Two versions are available of the 2nd Edition, Unabridged: