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A K&S IConn PLUS wire bonder and a K&S IConn wire bonder should not be compared only by model name, machine age or purchase price. Two quotations may appear similar while including very different bond heads, capillary holders, workholders, wire-feed modules, vision systems, controllers, software versions, package fixtures and process tooling.
For buyers searching for a K&S IConn PLUS, K&S IConn wire bonding machine, IConn PLUS wire bonder, IConn wire bonder or a general K&S wire bonder, the important question is not simply which platform is newer. The important question is whether the offered configuration can support the intended package, wire material, capillary design, loop profile, workholder and production target.
This guide explains how to compare used K&S IConn and IConn PLUS wire bonding machines before purchase, which configuration areas matter most, and how to avoid approving a quotation based only on a familiar machine label.
In Brief: What Is the Most Important Difference Between IConn PLUS and IConn?
The most important difference is often not the name printed on the machine. It is the actual installed configuration. A used IConn or IConn PLUS wire bonder may differ in bond head condition, capillary interface, wire-feed path, EFO setup, workholder type, package tooling, vision configuration, controller generation, software environment and available process recipes.
Do not assume every IConn PLUS machine includes the same process options.
Do not assume an IConn tool set will fit an IConn PLUS machine without confirming the installed interface.
Do not compare quotations until both suppliers provide a written configuration list.
Do not approve a machine from an empty movement video alone.
Why Model Name Alone Is Not Enough for a Wire Bonder Purchase
A wire bonder is a complete process system. The machine frame is only one part of the decision. The actual process depends on how wire is fed, how the capillary is mounted, how the free-air ball is formed, how the die and package are aligned, how the workholder supports the package and how the machine controls first bond, second bond and loop formation.
For a used K&S wire bonding machine, a quotation can use broad wording such as “IConn PLUS,” “IConn wire bonder,” “automatic wire bonder” or “complete machine.” Those descriptions are not enough for engineering approval.
Procurement rule: Compare the installed process configuration, not only the platform family name.
Eight Areas to Compare Between K&S IConn PLUS and IConn Quotations
1. Exact Machine Identity and Serial Information
Start with the full machine designation, serial number, production generation, controller information and current physical configuration. Request clear nameplate photographs and current images of the machine bond area, workholder, monitor, controller cabinet and accessories.
The written quotation should match the actual offered machine. This is especially important when a supplier uses broad phrases such as “IConn PLUS type,” “IConn system” or “K&S wire bonding machine.”
2. Bond Head and Ultrasonic System Condition
The bond head controls movement, energy delivery, capillary positioning and repeatable bonding behavior. Before purchase, request information about the installed bonding head, transducer condition, vertical motion, cable condition, head maintenance history and any replaced components.
A machine can look clean externally while still requiring work on the bond head, ultrasonic system, motion components or associated electronics.
3. Capillary Holder and Tool Interface
Capillary compatibility is central to wire bonding. The capillary geometry must match the wire material, wire diameter, bonded-ball requirement, die pad layout, bond finger or leadframe geometry and intended loop profile.
Ask for an itemized inventory of capillary holders, capillaries, collets, setup tools and calibration references. Existing tools can be valuable, but they must be reviewed against the target package rather than assumed compatible.
4. Wire Feed, Clamp and EFO System
Wire-feed behavior affects tail formation, free-air ball consistency, first-bond repeatability and loop stability. Check the spool path, wire guide condition, clamp response, tail-control behavior and EFO-related hardware.
During inspection or FAT, request a practical demonstration of wire threading, wire clamp movement, tail formation and repeated free-air ball generation.
5. Workholder, Heater and Package Fixture Configuration
A wire bonding machine cannot be evaluated separately from its workholder and fixture setup. The package must be held securely and consistently during bonding. Workholders, heater plates, clamps, leadframe tools, substrate fixtures and carrier plates are all process-critical items.
Confirm whether the included workholder fits the target package dimensions, thickness, material, thermal requirements and package locating method.
6. Vision, Alignment and Teach-Point Setup
Vision configuration should be reviewed against actual die pads, leads, bond fingers, substrate references or package features. Camera condition, optics, illumination, focus, teach points and alignment software can all affect setup time and process repeatability.
Do not assume a visible camera proves that the system can recognize the target package. Ask for an alignment demonstration using representative material or a defined package reference.
7. Controller, Software and Recipe Recovery
A used K&S IConn PLUS wire bonder may power on normally but still carry significant risk if the controller, industrial PC, software version, option files, machine parameters, recipes or backups are unavailable.
Request information about controller condition, software version, recipe storage, backup media, enabled options, alarm history, documentation and recovery procedure. These items matter during installation, troubleshooting and later product changes.
8. FAT Scope and Functional Evidence
A meaningful factory acceptance test should prove more than machine start-up and empty-axis movement. It should demonstrate the systems that are actually included with the quoted machine.
| Comparison Area | Questions to Ask | Evidence to Request |
|---|---|---|
| Machine Identity | Is the model and serial number confirmed? | Nameplate images, machine photos and written configuration list. |
| Bond Head | What head and tool interface are installed? | Bond area photos, movement demonstration and maintenance history. |
| Capillaries | What tools are included and what wire were they used with? | Tool inventory, capillary images and condition review. |
| Wire Feed | Can the clamp, wire path and tail formation be demonstrated? | Video of wire feed, clamp movement and FAB generation. |
| Workholder | Does it fit the target package? | Fixture drawings, photos and package comparison. |
| Vision | Can the target package references be recognized? | Camera images, alignment test and setup screenshots. |
| Software | Are backups and recipes available? | Software details, backup list and recovery information. |
| FAT | Can the machine complete a relevant bonding sequence? | Defined FAT document, results, photos and videos. |
How to Compare Two Used IConn PLUS Wire Bonder Quotations
Do not compare only the final equipment price. Create a configuration sheet for each offered machine and compare every process-critical item side by side.
Exact model, serial number and controller generation
Bond head and capillary holder configuration
Wire-feed, clamp and EFO condition
Included capillaries, nozzles and setup tools
Workholder, heater plate and package fixture inventory
Vision system, camera condition and alignment capability
Software, recipe, backup and documentation status
Refurbishment scope and replaced component list
FAT proposal and shipment-release criteria
Installation, spare parts and support scope
When an IConn PLUS Configuration May Be Worth Prioritizing
An IConn PLUS wire bonder may be worth prioritizing when the actual machine has a verified configuration that better matches the target package route, tooling requirement, vision workflow, process data and support plan.
However, a well-maintained IConn machine with the correct workholder, capillary tools, recipe backups and documented FAT can be a stronger project choice than an IConn PLUS machine with incomplete tooling, unknown software status or unclear process modules.
The better purchase is the machine that has the clearest route to successful package qualification.
Seven Common IConn PLUS Purchasing Mistakes
Buying from the machine name alone. IConn and IConn PLUS labels do not define every installed process component.
Ignoring capillary and workholder tooling. Missing tools can delay package qualification after delivery.
Assuming the prior recipe fits the new product. Different wire, die, package and loop requirements may need a new process window.
Accepting a power-on video as FAT evidence. A machine must demonstrate wire feed, FAB, bonding and looping behavior.
Leaving controller and software questions until after shipment. Recovery risk increases when backups are unavailable.
Comparing only headline UPH or equipment price. Tooling, qualification time and support scope can affect total project cost more.
Skipping package-level material validation. A working wire bonder still needs validation on the actual package route.
Related Wire Bonder Resources
Frequently Asked Questions About K&S IConn PLUS and IConn Wire Bonders
Are K&S IConn PLUS and K&S IConn wire bonders configured the same way?
No. Used machines can differ in bond head configuration, capillary holder, wire-feed hardware, workholders, heater setup, vision package, controller generation, software options and available process tools.
What should be checked first on a used K&S IConn PLUS wire bonder?
Start with machine identity, serial number, installed bond head, capillary interface, wire-feed condition, included workholder, controller status and available documentation.
Why are capillary tools important when buying a wire bonder?
Capillaries influence FAB formation, first bond, second bond, loop shape and package compatibility. The tool geometry and condition must match the target wire material and package design.
Can a K&S IConn wire bonder use an existing process recipe for a new package?
Existing recipes can be useful as a reference, but a new package may require different capillaries, wire settings, loop programming, vision teach points, workholder setup and bonding parameters.
Is a machine power-on video enough before buying an IConn PLUS wire bonder?
No. A power-on video does not confirm wire feed, clamp behavior, FAB formation, capillary compatibility, first bond, second bond, looping, vision alignment or software recovery.
What should an IConn PLUS wire bonder FAT include?
A useful FAT should include machine identity verification, safety checks, bond head movement, capillary mounting, wire feed, clamp behavior, FAB formation, vision review, workholder verification, recipe status and a representative bonding sequence.
How do I compare two K&S wire bonder quotations?
Compare the full installed configuration rather than model name or price alone. Review bond head, capillary tools, wire feed, workholder, vision, controller, software, refurbishment scope, FAT evidence and support plan.
Need a K&S IConn PLUS Wire Bonder Configuration Review?
Share machine photos, serial information, package drawing, wire material, capillary details, workholder information, target loop profile and expected production conditions. A useful review starts with the actual bonding process and the physical configuration of the offered machine.
