Could anyone advise on the following with regard to embedded = capacitors;- 1. How much capacitance per mm2 can I expect ? I believe here that the = key to this is how thin one can get the substrate. Any takers on this = one ? I have seen the figure of 50 microns crop up a lot for thick film = hybrids using embedded capacitors but I would like to know if this can = be improved on? If 50 microns is the limit then the size of capacitors = (surface area) is quite large (100 pF comes out at about 7.5 x 7.5 mm = using Er 10 substrate). 2. What are the typical tolerances like for these components 3. What cost does this technology incur ? Thanks in advance Steve Rogers B.Eng (Hons) C.Eng IEE RF Design Engineer Micromill Electronics Limited Leydene House Waterberry Drive=20 Waterlooville Hampshire PO7 7XX Tel: +44 (0) 23 9236 6600 Fax: +44 (0) 23 9236 6673 Registered No. 1456922 (England). =20 Registered Office Brook Road Wimborne, Dorset BH21 2BJ *********************************************************************** "This email and any attached files are confidential and may be legally = privileged.If you are not the addressee, any disclosure, = reproduction,copying, distribution,, or other dissemination or use of = this communication is strictly prohibited. If you have received this = transmission in error please notify the sender immediately and then = delete this email. It is the policy of Micromill Electronics Limited that no legally = binding statements, representations or commitments (collectively = 'statements') may be made by email. Any such statements must be = confirmed either by facsimilie or by post before they will have legal = effect. The sender of this email is not authorised to commit the company = in any way and the addressee is hereby formally notified of that fact." *********************************************************************** ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu