Platings for Interconnections
Published: |
June 4, 2019 |
Author: |
ACI Technologies, Inc. |
Abstract: |
Interconnection technology relies very heavily on the ability of the conductors on a printed wiring assembly to maintain reliable signal integrity. Harsh environmental factors can precipitate a loss of conductivity due to oxidation and corrosion. Connections are typically soldered or inserted using pressure fitted connectors to obtain enough surface contact to meet the electrical conductivity requirements. In pressure contacts, surface integrity is especially critical where the abrasive effects of retraction and insertion can wear off the metallic finish from the contact area. This can expose the underlying copper or nickel and lead to increased resistance at the contact points. These types of conductors are frequently found in card edge connectors where the terminations are plated with a layer of nickel and gold (frequently referred to as gold fingers). A hard gold is typically used containing very small amounts of nickel and cobalt to increase the wear resistance.... |
You must be a registered user to talk back to us. |
Company Information:
More articles from ACI Technologies, Inc. »
- Dec 07, 2020 - A Non-destructive Approach to Identify Intermittent Failure Locations on Printed Circuit Cards (PCC) that have been Temperature Cycle Tested
- Nov 09, 2020 - Ball Grid Array (BGA) Voiding Affecting Functionality
- Sep 02, 2020 - Reworking ALD Coatings
- Aug 05, 2020 - ALD of Alumina Ceramic Films for Hermetic Protection
- Jul 01, 2020 - Lead-Free Risk Mitigation -- A Case Study
- See all SMT / PCB technical articles from ACI Technologies, Inc. »
More SMT / PCB assembly technical articles »
- Aug 20, 2024 - Thermal Interface Materials Drive Electronic Innovation | GPD Global
- Aug 20, 2024 - Underfill Materials Dispensing in Electronics Manufacturing Applications | GPD Global
- Jul 15, 2024 - Transforming LED Manufacturing: I.C.T Engineers Set Up Complete Production Line in Tajikistan | I.C.T ( Dongguan ICT Technology Co., Ltd. )
- Jun 20, 2024 - Case study: Precise Coating on Electronic Hearing Devices | ASYMTEK Products | Nordson Electronics Solutions
- Mar 19, 2024 - What is Underfill | GPD Global
- Browse Technical Library »
Platings for Interconnections article has been viewed 599 times