Working on the endcap timing layer

(1/2) Lindsey Grey, right, is an associate scientist in the Scientific Computing Division working on early prototypes of readout boards for the MIP timing detector endcap timing layer. This group is determining by hand the functioning yield of bump bonds that attach a low-gain avalanche detector (a silicon sensor that can be used as a precision timing device) to a simple interposer PCB to make a prototype sensor assembly. From left: Aashaq Shah (Delhi University), Miaoyuan Liu (Fermilab), Lindsey Gray (Fermilab). detector technology, people Photo: Leticia Shaddix

(1/2) Lindsey Grey, right, is an associate scientist in the Scientific Computing Division working on early prototypes of readout boards for the MIP timing detector endcap timing layer. This group is determining by hand the functioning yield of bump bonds that attach a low-gain avalanche detector (a silicon sensor that can be used as a precision timing device) to a simple interposer PCB to make a prototype sensor assembly. From left: Aashaq Shah (Delhi University), Miaoyuan Liu (Fermilab), Lindsey Gray (Fermilab). Photo: Leticia Shaddix

(2/2) Normally they would attach these interposers to a readout card with amplifiers to detect the passage of charged particles, but they identified some problems with this assembly that needed to be investigated! Their measurements will be used to help improve and automate quality control procedures for producing these prototype assemblies and eventually endcap timing layer sensor assemblies. detector technology, people Photo: Leticia Shaddix

(2/2) Normally they would attach these interposers to a readout card with amplifiers to detect the passage of charged particles, but they identified some problems with this assembly that needed to be investigated! Their measurements will be used to help improve and automate quality control procedures for producing these prototype assemblies and eventually endcap timing layer sensor assemblies. Photo: Leticia Shaddix