AMPHENOL TCS
TB-2241
TM
DFM and SMT Assembly Guideline
Revision “K“
Specification Revision Status
Revision
“A“
“B”
“C”
“D”
SCR No.
S1647
S1884
S2248
S2412
Description
Initial Release
Implemented 6-Pr changes
Updated PN Tree and connector weight table
Updated 6-Pr images, 4-pr & 6-pr weight table, stack
heights, PN Tree and JEDEC Tray Info
Updated section 9.0 to recommend using a secondary
method of attachment for bottom side reflow
Updated Addendum A – Connector Weights Table to
remove testing results
Added Section 3.5.1 Allowable mating angles and
mating forces and suggested mechanical structure for
heavier assemblies. Revised connector weight table to
reflect metal caps on 6-pr plugs
Updated Section 3.7, changed minimum recommended
standoff length and clarified DFM impact
Updated PN Trees. Added info for new part #’s – 4pr
15.5 and 17.5mm – 6pr 16mm. Added PCB hole info
and hardware assembly order to section 3.7
Update Section 3.4 – connector array positional
tolerances, the DFM check sheet in Addendum B, and
the PN matrix in sections 2.1/2.2
Removed the angular tolerance note in the visual aid on
pg 18
Added section 3.5.2 mating gatherability tolerances
Initial
J. Proulx
J. Proulx
J. Proulx
J. Proulx
Date
1/27/11
12/15/11
2/19/13
8/20/13
“E”
S2652
J. Proulx
1/16/14
“F”
“G”
S3138
S3260
M. Chareth
J. Proulx
9/29/14
1/08/15
“H”
S4356
J. Proulx
2/26/16
“J”
“K”
S4404
S6828
J. Proulx
J. Proulx
3/09/16
3/14/18
TM
DFM and SMT Assembly Guideline
Table of Contents
1.0
DFM Guideline Introduction
1.1
Scope
1.2
Purpose
1.3
Reference Documents
1.3.1
Customer Use Drawings
2.0
Design Introduction – InfinX Connector
2.1
Part Numbering Matrix
3.0
Design Requirements
3.1
InfinX Solder Joint Definition – Reliability Factors
3.2
Landing Pad Footprint
3.3
PCB General Requirements and Routing
3.4
Connector Array Positional and Shift Tolerances
3.5
Layout and Orientation for Multi-Connector Applications
3.5.1
Allowable Mating and Un-Mating Angles
3.5.2
Mating Gatherability Tolerances
3.6
Connector Mating and Polarizing Features
3.7
Mechanical Requirements
3.7.1
Suggested Mechanical Structure for Heavier Assemblies
3.8
Keep-out Zone and Clearances
4.0
Manufacturing Introduction - InfinX Connector
5.0
Connector Handling
Part # and Serial # Location Information
Solder Paste Process
Placement Process
7.1 Part Set-Up
7.2 Feeders
7.3 4-Pair Plug JEDEC Tray Set-up
7.4 4-Pair Receptacle JEDEC Tray Set-up
7.5 6-Pair Plug and Receptacle JEDEC Tray Set-up
Reflow Process - Set-up and Recommended Thermocouple Locations
8.1 Reflow Profile Recommendations
8.2 Vacuum Cap Removal
Double Sided Reflow Process
TB-2241
Revision “K“
6.0
7.0
8.0
9.0
10.0 Rework Process
Addendums:
A. InfinX Connector Weights
B. InfinX DFM Check Sheet - used for design reviews, and process start-up.
Copyright © Amphenol Corporation 2018 • All rights reserved
Page 2 of 38
TM
DFM and SMT Assembly Guideline
1.0
DFM Guideline Introduction
TB-2241
Revision “K“
This document is intended to provide design criteria and process information that will promote
automation, cost and cycle time reduction, and help to produce designs that will yield high quality for the
solder attach of InfinX connectors. The InfinX connector will be used in many assembly processes, and
because all processes are different, this document provides a starting point, or “baseline” criteria for
application process development.
This document is not intended to be the final process definition,
nor is it intended to constrain designs.
If customers cannot meet/follow all of the recommendations,
they should contact TCS to discuss the best alternatives.
1.1
Scope
This document has been prepared to communicate the application guidelines for the InfinX
Surface Mount Connector. It provides Printed Circuit Board (PCB) footprint and layout criteria, and
“starting-point” process recommendations for SMT assembly. Updates and revisions will be issued on a
continuous basis to expand the guidelines, address changes in technology and manufacturing
capabilities, and cover modifications and/or additions to current criteria.
1.2
Purpose
DFM is the sharing of manufacturing guidelines developed from industry standards and the
knowledge gained from design and production. Applying these guidelines concurrently, in new product
development with the design and application of Amphenol TCS’s InfinX connector, can positively
impact cost, time to market, and quality of the end product.
1.3
Reference Documents
Located at:
http://www.amphenol-tcs.com/search.php?n=infinx&srt=rel&p=1
1.3.1
TB2240 InfinX Routing Guideline
1.3.2
Customer Use Drawings
C379-XXXX-XXX
C380-XXXX-XXX
Plug
Receptacle
1.4
Levels of Requirement
For each requirement, an impact and benefit statement is included to quantify the requirement.
Some requirements are stated as being recommended or preferred per the following:
Recommended:
The minimum processing requirement – a deviation
will
most likely impact
manufacturability and cost.
Preferred:
Should be done when possible – a deviation
could
impact manufacturability and
cost.
Copyright © Amphenol Corporation 2018 • All rights reserved
Page 3 of 38
TM
DFM and SMT Assembly Guideline
2.0 Design Introduction – InfinX Connector
TB-2241
Revision “K“
The InfinX connector is wafer constructed and organized in 10 and 18 wafer configurations.
There are 4 Pair and 6-Pair versions available. Each 4-Pair wafer has 18 connections – 8 signals and 10
grounds. The 6-Pair wafer has a total of 26 connections - 12 Signals and 14 Grounds.
The wafer construction allows for the contacts to be spaced on a 1.15mm x 2.3mm interstitial
grid. The connector can be specified in multiple separation heights – see section 2.1.
The connector is completely SMT attach, utilizing ball grid technology for termination to the
board, and is readily applied using standard SMT processes.
The solder ball used is a SAC305 Alloy with a diameter of 28 mils (0.71mm), re-flowed on the
end of a lead – “Blade in Ball”. (Tin-Lead is also available)
18 Wafer 6-Pair Plug Assembly – 8mm
8mm Plug Wafer
18 Wafer 6-Pair Receptacle Assembly – 9mm
9mm Receptacle Wafer
Copyright © Amphenol Corporation 2018 • All rights reserved
Page 4 of 38
TM
DFM and SMT Assembly Guideline
2.1
Part Numbering Matrix:
Plug
TB-2241
Revision “K“
Copyright © Amphenol Corporation 2018 • All rights reserved
Page 5 of 38
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