Scrap Wiki

Last Updated: September 15, 2026

What Determines E-Scrap Value? Electronics Markets vs. Raw Materials Market

Learn how electronics markets, raw-material prices, mining, recycling, processing, and Ohata classifications influence e-scrap value.

CPU Featured Desktop Motherboard Circuit Board

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Last Updated: September 15, 2026

What Is a BGA Chip? A Complete Guide to Ball Grid Array Packaging

A BGA chip is an integrated circuit package that uses a grid of solder balls underneath to connect directly to a circuit board. BGA packaging allows many electrical connections to fit within a compact area and is commonly used for processors, graphics chips, memory, chipsets, and controllers. Learn how BGA differs from PGA, LGA, and leaded IC packages and where each design may be preferred.

CPU PC Parts Computer

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Last Updated: September 15, 2026

Gold Fingers and Gold-Plated Contact Identification Guide

Gold fingers are narrow, gold-plated contacts found along the edges of memory modules, graphics cards, and other circuit boards. This guide explains how to identify them and how hard gold differs from other gold-colored PCB finishes. Learn what alignment notches, beveled edges, shorter contacts, and insertion marks can reveal about their design and condition.

CPU Desktop Motherboard Computer PC Memory(RAM)

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Last Updated: September 7, 2026

CPU Scrap Classification Guide: 9 Grades | Ohata

Identify CPU scrap by package material, gold cap, pins, contacts and condition. Compare nine Ohata grades from CPU-SSS to CPU-Fbefore recycling.

CPU

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Last Updated: September 5, 2026

Large Plastic CPU Socket Identification Guide | Ohata

Learn how Ohata measures a large plastic PGA CPU socket: both outer dimensions must be at least 50mm. See qualifying boards, exclusions and photo examples.

CPU Desktop Motherboard Circuit Board

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Last Updated: August 27, 2026

Ohata CPU Scrap Classification Wiki

Learn how Ohata classifies ceramic, PGA, LGA, BGA, fiber, slot-style, plastic, and damaged CPU scrap. Compare package construction, contact types, identification features, sorting guidance, and conditions that may affect classification or acceptance.

CPU PC Parts

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