Carrier Board Developments
The various carrier boards developed at Nikhef for the various Medipix chips are listed here with descriptions and detailed information that is password protected and available for collaboration members only.
Relaxd Read-Out System
The first iteration of the chipboard for the Relaxd project that has been produced still uses wire-bond technology to connect the bond-pads on the chip to the printed circuit board. It is ready to use either a standard 1GBs Ethernet line or a non-standard 3GBps read-out interface.
Single Board (Nikhef)
In collaboration with PANalytical an improved version of the single Medipix2 chipboard was developed at NIKHEF. To maintain backward compatibility with the current read-out systems the VHDCI connector with the same pinout like in case of the board developed by CERN is used. The difference is, that now the connector has 90 degree orientation according to the printed circuit board. The dimensions of this single chipboard are 58 mm x 43 mm.
For the schematics and layout files go to download page (password protected).
Single Board (CERN)
The very first Medipix2 charrier board was developed in CERN. For the communication and powering of the Medipix2 chip is used the VHDCI connector, for high voltage connection the is used standard LEMO connector. The dimensions of the board are 79 mm x 49 mm.
For the schematics and layout files go to download page (password protected).
Quad Board
The quad board design was the first step to larger area detectors based on the Medipix chips. Four Medipix2 chips with one common sensor chip to have a larger area with limited dead space compared to combining single boards.
The quad-board design was even aimed at the minimalization of the dead space among neighbouring boards. From the top it can be tiled without any dead space, from the sides the dead space is minimized to few mm. The dimensions of the board are 74 mm x 56 mm.
The board is in general mounted on an aluminium block to provide a connection to a cooling device, as running four chips together can generate quite some heat.
For the schematics and layout files go to download page (password protected).
Octal Carrier Board
The octal chip carrier board is the biggest one developed at NIKHEF. It can accomodate from one to eight Medipix2 chips, which can be read out serially or in parallel. The dimensions of the 12-layer PCB are 56 mm x 110 mm. The board is usually assembled on the protective metal block.
For the schematics and layout files go to download page (password protected).
