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  • From: Zhenyu Ye <yezhenyu2003 AT gmail.com>
  • To: star-fst-l AT lists.bnl.gov
  • Subject: Re: [Star-fst-l] Dimensions of the new hybrids and T-board
  • Date: Mon, 3 Jun 2019 14:19:24 -0500

Thanks a lot, Jianing.

Zhenyu

> On Jun 3, 2019, at 3:38 AM, 董家宁 <jndong AT sdu.edu.cn> wrote:
>
> Dear Zhenyu,
> The locations of APV25 chips and bias pads have been modified. The new
> document and CAD files can be found in the following link:
> https://drupal.star.bnl.gov/STAR/blog/jndong/190603document-dimensions-and-cad-files-new-hybrids-and-t-board-v21
> .
> Please double check to make sure that there is no misunderstanding.
> Thanks!
>
> P.s. We have just got the hybrids soldered with connectors from the
> company (the old version ones). Besides that, there are only two pieces of
> inner hybrids left in SDU. Please remind me if you need extra bare hybrids
> (the old version ones). If not, they will be sent to Yi for testing.
>
> Best,
> Jianing
>
>
>> -----原始邮件-----
>> 发件人: "Zhenyu Ye" <yezhenyu2003 AT gmail.com>
>> 发送时间: 2019-05-30 11:59:21 (星期四)
>> 收件人: "董家宁" <jndong AT sdu.edu.cn>
>> 抄送: "LI YI" <li.yi AT sdu.edu.cn>, "Yi Yang" <yiyang AT ncku.edu.tw>
>> 主题: Re: [Star-fst-l] Dimensions of the new hybrids and T-board
>>
>> Jianing,
>>
>> Can you make the following changes:
>>
>> Inner hybrid
>> 1. move the APV chips away from the origin by ~0.7 mm, i.e. center of the
>> footprints at R=171.5 mm
>> 2. place the bias pads at R=167.5 mm and angles of +/-15.08 degrees
>>
>> Outer hybrid
>> 1. move the APV chips away from the origin by ~0.4 mm, i.e. center of the
>> footprints at R=286.5 mm
>> 2. place the bias pads at R=282.5 mm and angles of +/-0.4 and +/-15.6
>> degrees
>>
>> Zhenyu
>>
>>> On May 29, 2019, at 9:37 PM, 董家宁 <jndong AT sdu.edu.cn> wrote:
>>>
>>> Hi Zhenyu,
>>> The distance between the center of the APV25 footprint and the center of
>>> the Silincon sensors in IST hybrids is 25.119 mm, as shown in the
>>> attachment.
>>> Is that what you asked?
>>> Please let me know if you need more information.
>>>
>>> Best,
>>> Jianing
>>>
>>>
>>>
>>>
>>>> -----原始邮件-----
>>>> 发件人: "Zhenyu Ye" <yezhenyu2003 AT gmail.com>
>>>> 发送时间: 2019-05-30 10:12:54 (星期四)
>>>> 收件人: "董家宁" <jndong AT sdu.edu.cn>
>>>> 抄送:
>>>> 主题: Re: [Star-fst-l] Dimensions of the new hybrids and T-board
>>>>
>>>> Hi Jianing,
>>>>
>>>> Can you please tell me the distance between the center of the APV25
>>>> footprint and that of the Silicon sensors for IST hybrids?
>>>>
>>>> Zhenyu
>>>>
>>>>> On May 24, 2019, at 10:55 PM, 董家宁 <jndong AT sdu.edu.cn> wrote:
>>>>>
>>>>> Dear Zhenyu,
>>>>>
>>>>> Slide 2:
>>>>> 166.7 mm (not so accurate) is actually the Distance from the origin to
>>>>> the edge of APV25 footprint, which is measured manually. The bright
>>>>> yellow arc with radius of 166.7 mm is placed as a reference.
>>>>> In addition, it seems that the APV25 pads are very close to the
>>>>> footprint edge. The distance I just measured manually is roughly
>>>>> estimated at 0.6 mm. And these values have been updated in the document.
>>>>>
>>>>> Slide 3:
>>>>> The positions of the chips correspond to the center of their footprint
>>>>> (the same footprint used in IST). I think it's also the center of APV25
>>>>> chip (Maybe not, I'm not sure about that).
>>>>>
>>>>> P.s. The APV25 chip assembled on hybrid in IST and its footprint are
>>>>> shown in the attachment, which maybe helpful for easier understanding.
>>>>>
>>>>> Best,
>>>>> Jianing
>>>>>
>>>>>
>>>>>> -----原始邮件-----
>>>>>> 发件人: "Zhenyu Ye" <yezhenyu2003 AT gmail.com>
>>>>>> 发送时间: 2019-05-25 00:35:47 (星期六)
>>>>>> 收件人: "董家宁" <jndong AT sdu.edu.cn>
>>>>>> 抄送: star-fst-l AT lists.bnl.gov
>>>>>> 主题: Re: [Star-fst-l] Dimensions of the new hybrids and T-board
>>>>>>
>>>>>> Dear Jianing,
>>>>>>
>>>>>> Slide 2 How do you get the number 166.7 mm for the Distance from the
>>>>>> origin to APV25 pads?
>>>>>>
>>>>>> Slide 3 What the positions of the APV chips (e.g. X: 33.4 mm, Y: 167.6
>>>>>> mm) in your slides correspond to? Are they the center of the chips?
>>>>>>
>>>>>> Best,
>>>>>> Zhenyu
>>>>>>
>>>>>>> On May 24, 2019, at 7:39 AM, 董家宁 <jndong AT sdu.edu.cn> wrote:
>>>>>>>
>>>>>>> Dear All,
>>>>>>>
>>>>>>> The document of dimensions and CAD files for the new hybrids and
>>>>>>> T-board have been uploaded to the WIKI
>>>>>>> (https://wiki.bnl.gov/star/index.php/Hybrid_and_T-board), and they
>>>>>>> can also be found in the following link:
>>>>>>> https://drupal.star.bnl.gov/STAR/blog/jndong/document-dimensions-and-cad-files-new-hybrids-and-t-board
>>>>>>> .
>>>>>>>
>>>>>>> Please help me to double-check the dimensions and locations of APV25
>>>>>>> chips and other critical components.
>>>>>>>
>>>>>>> If you need additional information, please let me know.
>>>>>>>
>>>>>>> Thanks!
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Best,
>>>>>>>
>>>>>>> Jianing
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Star-fst-l mailing list
>>>>>>> Star-fst-l AT lists.bnl.gov
>>>>>>> https://lists.bnl.gov/mailman/listinfo/star-fst-l
>>>>> <APV25-chip_and_footprint.pdf>_______________________________________________
>>>>> Star-fst-l mailing list
>>>>> Star-fst-l AT lists.bnl.gov
>>>>> https://lists.bnl.gov/mailman/listinfo/star-fst-l
>>> <IST_sensor_APV.png>





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