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Types of PCB: PIB / DIB / Probecard / Daughter board

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taring77

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Types of PCB

Hi all,
any one knows what are these types of boards? its functions...and perhaps some specs.

PIB / DIB / Probecard / Daughter board
& loadboard PCB

Thanks All
 

Re: Types of PCB

PIB = Prober Interface Board: goes between the tester prober and the semiconductor wafer or die.

DIB = Device Interface Board: goes between the tester and a device.

Probe Card = A PCB with probe needles mounted that contact the unmounted/unbonded semiconductor die or wafer to interface to a tester.

Daughter Board = A board with socket and/or circuitry on it that is mounted on, or plugs into, a larger board (usually referred to as the motherboard).

Load Board = A tester interface board that includes circuitry to test the design limits of a device. It augments or modifies the basic tester functions to permit dynamic and/or static current, voltage, load, etc. measurements.

There are no general specifications for the above. The requirements of each of the above depend on the semiconductor/IC/device, the specifications/standards you are trying to meet or verify with the test, and what brand of tester is in use.

Some well known brands of semiconductor testers that would use the above defined boards include: HP, Credence, LTX, Teradyne, Schlumberger, etc.

Picture of DIB -
**broken link removed**

Picture of Probe Card -
**broken link removed**

Picture of Load Boards -
**broken link removed**
 

Re: Types of PCB

thank you so much House_cat....

Looks to me that these boards are not as complicated as a normal product PCB's.
looks like its only just a fan out board....
anyone know if there is challenges doing this line or any prospect in PCB designing if someone is doing this boards?

thanks
Taring
 

Re: Types of PCB

Some of them are quite complex. Most are controlled impedance because you are trying to meet EIA or MILSPEC qualification standards. The space on the boards is very limited, and the board must be designed such that it doesn't introduce skew, jitter, false trigger, etc. etc.

In addition to requiring execellent signal integrity, you are faced with high density fanout problems such as 433 ball, 1mm pitch BGA sockets. More and more tester interface boards now require micro vias, blind vias, and filled vias.

Many of the boards today use low Er, high Tg board materials to reduce loss between the tester and the device.

Various methods are used to mount the boards to the testers. Some are held in place by vacuum, so all pads and vias have to be filled, blind, or blank in the vacuum area. Some boards have docking plates to guide the automatic handling hardware. Those boards can't have any parts on the top of the board. Much of the bottom of the board is unusable because of the contact pads that mate to the tester pogo pins.

In short - the boards have to be designed to be as electronically invisible as possible between the device and the tester, and the mechanical resistrictions are numerous.
 

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