Wedge bondingtools
A wedge bonding tool makes the wire connection between a chip and the circuit around it.
We tailor tools to your requirements and reply quickly with a practical proposal.
Your requirements
Tools can be customized to your requirements, and we respond quickly.
Send your drawing with the quote request, or build a Sunns part number with the builder on this page.
- 01Your drawing or requirements
- 02Configured from the catalog code key, position by position
- 03Custom series: extended length, ultra-thin and ultra-fine pitch
- 04Lead time of 2–4 weeks for models in volume production
- Station
- 01 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
Material
Titanium carbide, tungsten carbide and other ultra-hard materials, machined to any shape.
- 01P · Cermet
- 02W · Tungsten carbide
- 03T · Titanium carbide
- 04Raw materials checked on the Zeiss EVO 18 SEM
- Station
- 02 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
Grinding
Grinding, machining and inspection of every tool happen under one roof at our partner factory in China.
Grinds cemented carbide rod on five axes at once. Control resolution 0.0001 mm, rotary axis resolution 0.0001°, surface finish < 0.2 Ra.
- 01Carbide rod
- 02Shank ground to tool diameter
- 03Taper and tool length (0.75" or 1")
- 04Foot type: F, C, CSF, CG, GW, DT, VG
- Station
- 03 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
Feed hole and foot
Micro holes and shaped holes, 0.01 to 0.4 mm.
High-precision CNC micro-hole machine: 5-axis, minimum micro-hole diameter 4 µm, rotary axis resolution 0.001°.
- 01Feed angle: 30°, 38°, 45°, 52°, 55° or 60°
- 02Standard (O) or vertical (V) wire feed
- 03Sized to the wire: fine 0.0005"–0.0020", heavy 0.003"–0.0160"
- 04Bond length: BL = BF + ⅓FR + ⅓BR
- Station
- 04 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
Finish
Precision surface treatment and polishing.
- 01M · Matte FR, BR and bond flat
- 02P · Polished FR, BR and bond flat
- 03MP · Polished FR and BR, matte bond flat
- 04Worn FR and BR radii leave a weaker bond heel
- Station
- 05 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
The bond
The tool tip vibrates ultrasonically. With the right heat and pressure, this bonds gold, aluminum or copper wire to the pad at the atomic level.
- 01Wire through the feed hole
- 02Ultrasonic vibration, temperature and pressure
- 03Usable bond length is 50–70% of pad length for fine wire
- 040.002" pad, 0.0007" wire, BL 0.001", tool size 1510
- Station
- 06 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
Inspection
Zeiss EVO 18 scanning electron microscope, with EDS and WDS, for full control of raw materials.
Keyence VHX-7000 digital microscope for in-process control. An inspection image is kept for every product.
- 01Raw material analysis on the SEM, with EDS and WDS
- 02In-process control on the VHX-7000
- 03An inspection image kept for every product
- 04SEM view of the finished bonding face
- Station
- 07 / 07
- Part
- SW-WFABSV-45O-1/16x1-CG2020-M-WX
01
Key facts
- Materials
- W tungsten carbide, T titanium carbide, P cermet
- Designs
- 14 tool designs for manual and automatic bonding, including gold ribbon and heavy aluminum wire
- Wire
- Fine wire .0005"–.0020", heavy wire .003"–.0160". Gold ribbon 50–500 µm wide, 12.5–25.4 µm thick
- Feed angles
- 30°, 38°, 45°, 52°, 55°, 60°. Vertical feed in 45° and 52°
- Machines
- A8D vertical feed holds the wire more steadily. It doesn't suit F&K or Hesse machines
- Lead time
- 2–4 weeks for models in volume production
Sizes not listed here can be made on request. Dimensions and tolerances are for reference.
02
Designs
| Design | For | Front | Back | Notch |
|---|---|---|---|---|
| WFABSV | Wire | Front angle | Back step | V-notch |
| WFABSQ | Wire | Front angle | Back step | Square notch |
| WFABSN | Wire | Front angle | Back step | No notch |
| WSFBSP | Wire | Front square | Back step | Parallel end |
| WSFBSQ | Wire | Front square | Back step | Square notch |
| WSFBSN | Wire | Front square | Back step | No notch |
| WSFBSV | Wire | Front square | Back step | V-notch |
| WSFBAQ | Wire | Front square | Back angle | Square notch |
| WSFBAN | Wire | Front square | Back angle | No notch |
| WSFBAV | Wire | Front square | Back angle | V-notch |
| RFABSV | Gold ribbon | Front angle | Back step | V-notch |
| On request | Automatic bonding, wire: send us your requirements | |||
| On request | Automatic bonding, gold ribbon: send us your requirements | |||
| On request | Heavy aluminum wire: send us your requirements | |||
Every design comes with standard feed, or vertical feed in 45° and 52°. The design code reads use (W wire, R ribbon), front (FA, SF), back (BS, BA) and notch (V, Q, N, P). Profile abbreviations are in the glossary below.
03
Build a part number
Part number
SW-_-__-1/16x_-__-_-__
Choose every position to copy or quote it. Positions not chosen show as _.
Please specify. Standard is Ø1/16".
Four digits, a standard size. Not sure? Use the bond length helper below.
Special customization: insert X at the position and state the value. Specify table-tear or clamp-tear wire termination in your quote.
Bond length helper
Not sure of the size? Enter the pad length in the wire direction and the wire diameter, in inches.
Example from the catalog: 0.002 in pad, 0.0007 in wire, BL 0.001 in, tool size 1510.
04
Glossary
- BA
- Back angle
- BC
- Back chamfer
- BF
- Bond flat
- BL
- Bond length
- BR
- Back radius
- BS
- Back step
- BSV
- Back step vertical
- C
- C-groove
- CBR
- Chamfer back radius
- C/CG
- C-groove with cross groove
- CG
- Cross groove
- CM
- Center of mass
- DBS
- Double back step
- DF
- Double flat
- ECM
- Extra coarse matte
- ELG
- Elongated hole
- EN
- End angle
- FA
- Front angle
- FR
- Front radius
- FS
- Front step
- GW
- Wire groove
- LR
- Left radius
- M
- Matte
- MTA
- Main taper angle
- MP
- FR & BR polished, bond flat matte
- P
- Polished
- RR
- Right radius
- SA
- Side angle
- SB
- Back square
- SC
- Side chamfer
- SF
- Front square
- SS
- Side step
- TD
- Tool shank diameter
- TDF
- Tool shank flat
- V
- Vertical feed
- VG
- V-groove (along wire dir.)
- VGC
- V-groove with C-groove
05
Designs in 3D
Choose a design, then drag it to turn it in any direction. Request a quote with its number, or send us your own drawing.
Fine wire, cross groove
SW-WFABSV-45O-1/16x1-CG2020-M-WX
- Foot CG, cross groove
- 45° standard feed
- Shank 1/16" × 1" · proportions illustrative
Drag the model to turn it, or focus it and use the arrow keys.
The 3D model needs WebGL 2.
Send us your requirements
Models in volume production ship in 2–4 weeks.
Custom series: extended length (1.2–1.6" and 0.828"), ultra-thin and ultra-fine pitch, and tools made to customer requirements.