IPC 7721 : 1998

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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REPAIR AND MODIFICATION OF PRINTED BOARDS AND ELECTRONIC ASSEMBLIES

Available format(s):

Superseded date: 01-10-2003

Language(s):

Published date: 12-01-2013

Publisher: Institute of Printed Circuits

Table of Contents - (Show below) - (Hide below)

1 General
2 Handling/Cleaning
  2.1 Handling Electronic Assemblies
  2.2 Cleaning
  2.3 Coating Removal
  2.4 Coating Replacement
  2.5 Baking and Preheating
  2.6 Epoxy Mixing and Handling
  2.7 Legends/Marking
3 Blisters and Delamination
  3.1 Delamination/Blister Repair, Injection Method
  3.2 Bow and Twist Repair
  3.3 Hole Repair
  3.4 Key and Slot Repair
  3.5 Base Material Repair
4 Lifted Conductors
  4.2 Conductor Repair
  4.3 Conductor Cut
  4.4 Lifted Land Repair
  4.5 Land Repair
  4.6 Edge Contact Repair
  4.7 Surface Mount Pad Repair
5 Plated Hole Repair
  5.1 Plated Hole Repair, No Inner Layer Connection
  5.2 Plated Hole Repair, Double Wall Method
  5.3 Plated Hole Repair, Inner Layer Connection

Abstract - (Show below) - (Hide below)

Procedures are covered for modifying, reworking, and repairing printed boards and printed assemblies. Covers internal circuits, surface mount land and plated through-hole and edge contacts. Repair methods are listed for burr holes, legend marking, blisters and delamination, bow and twist, and base materials. Details coating removal and replacement, jumper wires, cutting conductors, and handling.

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Development Note	Supersedes IPC R 700. (08/1998) This document is included in IPC 7711/21 (7711 AND 7721 PACKAGE). (06/2002) Included in the IPC E 500 Collection. (09/2003)
Document Type	Standard
ISBN
Pages
Published
Publisher	Institute of Printed Circuits
Status	Superseded
Superseded By	IPC 7711/21 : B
Supersedes	IPC R 700 : C1988

Standards Referenced By This Book - (Show below) - (Hide below)

IEC PAS 62250:2001	Qualification and performance specification for rigid printed boards (IPC 6012A with Amendment 1)
IPC D 326 : A	INFORMATION REQUIREMENTS FOR MANUFACTURING PRINTED CIRCUIT BOARDS AND OTHER ELECTRONIC ASSEMBLIES
IPC J STD 033 RUSSIAN : B	HANDLING, PACKING, SHIPPING AND USE OF MOISTURE/REFLOW SENSITIVE SURFACE MOUNT DEVICES
IPC J STD 033 CHINESE : B-1	HANDLING, PACKING, SHIPPING AND USE OF MOISTURE/REFLOW SENSITIVE SURFACE MOUNT DEVICES
IPC J STD 033 GERMAN : C	HANDLING, PACKING, SHIPPING, AND USE OF MOISTURE/REFLOW AND/OR PROCESS SENSITIVE COMPONENTS
IPC J STD 033 ITALIAN : B	HANDLING, PACKING, SHIPPING AND USE OF MOISTURE/REFLOW SENSITIVE SURFACE MOUNT DEVICES
ARINC 669 : 2004	GUIDANCE FOR LEAD-BASED SOLDERING, REPAIR AND REWORK
GEIA HB 0005-3 : 2008	REWORK/REPAIR HANDBOOK TO ADDRESS THE IMPLICATIONS OF LEAD-FREE ELECTRONICS AND MIXED ASSEMBLIES IN AEROSPACE AND HIGH PERFORMANCE ELECTRONIC SYSTEMS
ARINC 671 : 2006	GUIDANCE FOR THE TRANSITION TO LEAD-FREE SOLDERING, MAINTENANCE, AND REPAIR
IEC PAS 62293:2001	Qualification and performance specification for high density interconnect (HDI) layers or boards (IPC 6016)

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