Bed of Nails Test Fixtures

Metalic Process Carrier Pallets

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Aluminum Metalic Process Carrier Pallets

Aluminum
Aluminum pallets can be used in solder paste IR reflow applications. The pallet is designed for use as circuit board and flex circuit carrying pallets for wave solder machines and solder reflow ovens. Test Electronics will precision drill and customize pallets for your circuit board. Click on the Quote tab on the left then click on the Carrier Pallets tab to get an instant quotation on your process carrier pallets.

Titanium Metalic Process Carrier Pallets

Titanium
Titanium pallets used in wave solder will not contaminate the solder bath. The pallet is designed for use as circuit board and flex circuit carrying pallets for wave solder machines and solder reflow ovens. Test Electronics will precision drill and customize pallets for your circuit board. Click on the Quote tab on the left then click on the Carrier Pallets tab to get an instant quotation on your process carrier pallets.

Stainless Steel Metalic Process Carrier Pallets

Stainless Steel
Stainless Steel pallets used in wave solder will not contaminate the solder bath. The pallet is designed for use as circuit board and flex circuit carrying pallets for wave solder machines and solder reflow ovens. Test Electronics will precision drill and customize pallets for your circuit board. Click on the Quote tab on the left then click on the Carrier Pallets tab to get an instant quotation on your process carrier pallets.

Pallet Features

Testing features providing ability to test a variety of telephones, telephone handsets and headsets.

High strength to withstand operator abuse and repeated use without damage.
High temperature compatibility allowing frequent cycles through IR reflow soldering without warping or delamination.
Dimensional stability so that fit and alignment are the same time after time.
Chemical resistance which provides long pallet life even through rigorous cleaning processes.
Consistent conductivity on the surface and through the sheet to preserve sensitive components.
Low heat absorption allowing the machines to run cooler and faster.
Special pin fabrication and insertion techniques prevent loosening of circuit board alignment pins.
White lettering provides easy to read part number labeling.

Standard Machining and Static Protection

Conductive Carbon
The pallet material is impregnated with a conductive carbon which acts to prevent static damage. Standard machining techniques can loosen and wash this protective carbon away from the surface areas where it is most needed. Test Electronics prevents this by using a high speed spindle speed of 30,000 rpm. This high speed promotes cleaner cutting of the fibers and minimizes breaking up and washing away the conductive carbon composite material. After the machining process, the pallet is then micro bead polished to a gloss ensuring that the fibers and carbon are blended smoothly at the surface for optimum static protection.

Lower heat Absorption

Polishing
Special high speed cutting and micro bead polishing techniques which enhance the surface conductivity also allows the use of lower carbon content pallet material. This lightens the color and reduces heat absorption allowing the reflow soldering machines to run cooler and faster.

Tooling Pin Insertion Base Styles

Tooling pins are installed using an automated machine for positioning, and insertion. This technique provides perpendicularly exceeding 1/1000" per linear foot, and prevents drift due to side scoring and chipping. The end result is an extremely high degree of accuracy and repeatability in pin positioning. Above all, a tighter press fit for better mechanical reliability.
Other techniques for even higher reliability are as shown above:

Swaged pins.
Grove and glued pins (high temperature epoxy).
Cap captured pins.

Tooling Pin Body Styles

A variety of pin body styles are available. The styles are listed from the lower cost to the most expensive. The tradeoff is pin placement longevity. The stainless steel pins expand and contract at different rates than the pallet material, and can loosen up over time. The flanged step pin holds the best but costs the most.
Common pin styles available are:

Straight pins.
Step pins.
Flanged Step Pins.

Tooling Pin Tip Styles

A variety of pin body styles are available. The styles are listed from the lower cost to the most expensive. The tradeoff is locating accuracy. The standard round pin is typically used with a slotted or diamond pin head style. The diamond head is easier to machine and adequate for most applications. Applications which require higher precision may require the use of the elongated round head pin style.
Common pin styles available are:

Round head for standard through holes.
Diamond head for slotted holes.
Elongated round head for precision aligning slotted holes.

Composite Materials

Pallet carrier materials are available in three grades to meet your needs. All grades are lightweight, and offer advantages over aluminum, titanium and other composite materials. Dimensional stability, flatness, thermal shock resistance and chemical resistance make these products ideal for the hostile environments presented in wave solder applications.

Material Selection

We offer the industry's widest variety of pallets:

No Carbon is non-conductive.
High Carbon is semi-conductive.
Low Carbon is both semi-conductive and optically reflective.

Quality

All versions of the Pallet materials are closely checked for warp, twist, surface resistivity and other key properties prior to being micro-sanded to the tightest tolerance control available.

Machining Specifications
Pinning accuracy	±0.0005"
Perimeter Cut accuracy	±0.0005"
Surface roughness	ANSI-16 or better

Material Specifications	Aluminum	Titanium	Stainless Steel
Surface Resistivity (Ω/in²)	1000	0	0
ESD Safe	YES	YES	YES
Density lb/in³	0.09	0.16	0.28
Water Absorption %	0	0	0
Avg. CTE (para) K-1	0	0	0
Avg. CTE (perp) K-1	0	0	0
Flexural Strength (psi)	100000	240000	340000
Modulus in Flexure (psi)	0	0	0
Izod Impact Strength (ft-lb/in)	10	12	14
Thermal Conductivity (W/(m·K))	235	21	16
Surface Operating Temp °C	500	1400	1200
Chemical Resistance	Very Good	Very Good	Very Good
Barcol Hardness	0	0	0

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Enter Number of Test Pins for each side:
BOT	TOP	BAK	FNT	LFT	RGT

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Press Plate Features:
	Press Rods	Edge Press	Adjustable
BON Plate Features:
	Standard	QuickChange	Adjustable
Durability:
	50 Thousand	2 Million	10 Million
50K Operations = 2 years at 100 tests/day 2M Operations = 8 years at 1000 tests/day 10M Operations = 10 years at 4000 tests/day

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	Lever Latch		Panel Inserts
	Microcontroller		Mid Carrier Plate
	HV Shield		RF Shield

Pallet Material Antistatic / Reflectivity:
	No Carbon White	HighCarbon Black	Med Carbon Grey
Material Thickness:
	3mm	5mm
Hold Down Mechanism:
	None	SwivelLatch	TensionPins
Durability Until Delamination:
	12 Thousand	25 Thousand	50 Thousand
12K Cycles = 6 months at 100 cycles/day 25K Cycles = 1 year at 100 cycles/day 50K Cycles = 2 years at 100 cycles/day

Pallet Material Durability:
	Aluminum	Stainless	Titanium
Material Thickness:
	0.0625inch	0.090inch	0.125inch
Hold Down Mechanism:
	None	SwivelLatch	TensionPins

Pallet Material Conductivity:
	No Carbon NonConductive	Silicon Carbide Semiconductive
Material Thickness:
	2mm	3mm
Durability from Stress Pulveration Fractures:
	1 Million	1.2 Million	2 Million
1M Cycles Standard HS Machining 1.2M Cycles Bead Polished Finish 2M Cycles Polish & Heat Temper Treatment