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June 2015

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Subject:
From:
Joel Peiffer <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Joel Peiffer <[log in to unmask]>
Date:
Tue, 30 Jun 2015 20:08:14 +0000
Content-Type:
text/plain
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"Inserted Components" are fully functional components such as caps, resistors, etc. that can be inserted into boards.  "Formed" components are components that made as part of the PCB fab process.  Both inserted and formed components (mostly caps and resistors) are fairly common these days for many products (for example, just about every smart phone and tablet utilizes formed technology).  Inserted components were probably first used in the 1980s or early 1990s.  Formed components were first used the 1960s.

You need to define whether you mean inserted or formed as many PCB fabs utilize one technology but few offer both.

Regards, Joel

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Thayer
Sent: Tuesday, June 30, 2015 12:02 PM
To: [log in to unmask]
Subject: [EXTERNAL] Re: [TN] PCB Fabrication house with Embedded Discrete Component Capability

Hi GA Tan-

The question is what you mean by "discrete". For most people it means a passive which "stands on its own" as opposed to something done with special dielectrics and/or resistive metal layers to create passives within a circuit board.

For the embedding of truly discrete components, this is Joe Fjelstad's special area. He had a shop build a demo circuit. His website covering the technology is www.verdantelectronics.com

The tricky part is how to electrically connect to the passives. Probably a laser could be used to dig down to the part and then plate up a contact. But most end terminations are covered with Sn, which is particularly difficult to make contact to (other than with solder).

For the other technique, using special foils and/or dielectrics, there are a few competing products. They all seem to substantially increase the number of steps required to make a board, and they are so volume-inefficient that there are only a small number of cases where they work out economically.

Wayne Thayer

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Tan Geok Ang
Sent: Tuesday, June 30, 2015 10:13 AM
To: [log in to unmask]
Subject: [TN] PCB Fabrication house with Embedded Discrete Component Capability

Dear All,
               I'm looking for PCB supplier who has the above capability for proto design. Any recommendation? Thank in advance.

Regards
GA Tan

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