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公开(公告)号：JPH1051173A
公开(公告)日：1998-02-20
申请号：JP9543497
申请日：1997-04-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DAHRINGER DONALD WILLIAM , HUBBAUER PHILIP , LAMBERT WILLIAM ROGER , LYONS ALAN MICHAEL , SHEPHERD LLOYD , WELD JOHN DAVID
Abstract: PROBLEM TO BE SOLVED: To provide an assembly of an electronic product having electromagnetic interference shielding capability. SOLUTION: A metallized flexible enclosure 50 is provided around an electronic product, such as, a printed circuit board, and the metallized flexible enclosure 50 is sealed in such a manner that an isolatable connector 20 may be easily accessed without deteriorating the completeness of sealing. Thus, an assembly is formed. The metallized flexible enclosure 50 has a plurality of polymeric material layers which provide diffusion barrier property, and a metal layer which provides diffusion barrier property and electromagnetic interference shielding capability. This multilayer sheet is so patterned as to optimize the diffusion barrier property and the electromagnetic interference shielding capability, thus enabling efficient mass production.
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Patent Agency Ranking
公开(公告)号：JPH10674A
公开(公告)日：1998-01-06
申请号：JP7109797
申请日：1997-03-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LAMBERT WILLIAM ROGER , WELD JOHN DAVID
Abstract: PROBLEM TO BE SOLVED: To obtain a composite co-extrusion part reinforced in diffusion barrier characteristics and having shield characteristics of electromagnetic interference by extruding a first part made of a first material and forming a sheet material containing a multilayered sheet to the periphery of the extrudate in a tubular shape to bond the same thereto to form a composite structure and extruding a second part of a second material to cover the composite structure. SOLUTION: A base part 12 composed of a first material is extruded from a die 20 of an extruder 10 to form a first part 80 while a multilayered sheet 82 wherein a metal layer is held between upper and lower polymer layers is held to the continuous roll on a mandrel and continuously formed into a tubular form by a winding jig 70 and a sewing machine 72 and this flexible tube is matched with the outside of the first extrusion part 80 to be pressed to the surface of the first part 80 by a roll 60 to form a part 83. Next, the part 83 is passed through a second extrusion die 40 and the material 84 for a second part from an extruder 30 is extruded to be attached to the part 83 to form a part 81 to obtain a composite co-extrusion part having a multilayered structure.
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公开(公告)号：CA2197728A1
公开(公告)日：1997-09-25
申请号：CA2197728
申请日：1997-02-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor： LAMBERT WILLIAM ROGER , WELD JOHN DAVID
IPC: B29C48/16 , B32B7/02 , B29C47/02 , B29C47/06 , B29L9/00 , B29L23/00 , B32B15/08 , H05K9/00 , B29C47/04
Abstract: A method for fabricating a coextruded part includes a multiple layer sheet. First, an extruded part is fabricated which can include a complex interior structure. Then, a multiple layer sheet material is formed into a tube surrounding the first extruded part and bonded to the outer surface. Next, the composite structure then enters a second extrusion die and an outer layer of a second polymeric material is coextruded over the structure to form the outer surface. Thus, the multiple layer sheet embedded within the coextruded part imparts diffusion barrier and electromagnetic shielding capabilities to a complex extruded part in a continuous and cost effective manner.
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公开(公告)号：CA2200136C
公开(公告)日：2001-06-05
申请号：CA2200136
申请日：1997-03-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DAHRINGER DONALD WILLIAM , LYONS ALAN MICHAEL , HUBBAUER PHILIP , LAMBERT WILLIAM ROGER , SHEPHERD LLOYD , WELD JOHN DAVID
Abstract: An assembly for protecting the active electronic components of an electronic product from the environment and electromagnetic interference (EMI). A method is described where the assembly is formed by providing a metallized flexible enclosure around the electronic product, such as a printed circuit board, and subsequently sealing the metallized flexible enclosure, such that separable connectors can be readily accessed without violating the integrity of the seal. The metallized flexible enclosure includes multiple layers of polymeric materials that provide diffusion barrier properties and a metallic layer that provides both diffusion barrier properties and EMI shielding capabilities. The multiple layer sheet is patterned to optimize the diffusion barrier properties and EMI shielding capabilities. Further, the multiple layer sheet enables efficient, high volume production. Thus, electronic products can be provided with an assembly having an environment protection capability and EMI shielding capability amenable to reliable and cost effective high volume production.
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公开(公告)号：SG52954A1
公开(公告)日：1998-09-28
申请号：SG1997001175
申请日：1997-04-11
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DAHRINGER DONALD WILLIAM , HUBBAUER PHILIP , LAMBERT WILLIAM ROGER , LYONS ALAN MICHAEL , SHEPHERD LLOYD , WELD JOHN DAVID
Abstract: An assembly for protecting the active electronic components of an electronic product from the environment and electromagnetic interference (EMI). A method is described where the assembly is formed by providing a metallized flexible enclosure around the electronic product, such as a printed circuit board, and subsequently sealing the metallized flexible enclosure, such that separable connectors can be readily accessed without violating the integrity of the seal. The metallized flexible enclosure includes multiple layers of polymeric materials that provide diffusion barrier properties and a metallic layer that provides both diffusion barrier properties and EMI shielding capabilities. The multiple layer sheet is patterned to optimize the diffusion barrier properties and EMI shielding capabilities. Further, the multiple layer sheet enables efficient, high volume production. Thus, electronic products can be provided with an assembly having an environment protection capability and EMI shielding capability amenable to reliable and cost effective high volume production.
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公开(公告)号：CA2200136A1
公开(公告)日：1997-10-17
申请号：CA2200136
申请日：1997-03-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DAHRINGER DONALD WILLIAM , HUBBAUER PHILIP , LAMBERT WILLIAM ROGER , LYONS ALAN MICHAEL , SHEPHERD LLOYD , WELD JOHN DAVID
Abstract: An assembly for protecting the active electronic components of an electronic product from the environment and electromagnetic interference (EMI). A method is described where the assembly is formed by providing a metallized flexible enclosure around the electronic product, such as a printed circuit board, and subsequently sealing the metallized flexible enclosure, such that separable connectors can be readily accessed without violating the integrity of the seal. The metallized flexible enclosure includes multiple layers of polymeric materials that provide diffusion barrier properties and a metallic layer that provides both diffusion barrier properties and EMI shielding capabilities. The multiple layer sheet is patterned to optimize the diffusion barrier properties and EMI shielding capabilities. Further, the multiple layer sheet enables efficient, high volume production. Thus, electronic products can be provided with an assembly having an environment protection capability and EMI shielding capability amenable to reliable and cost effective high volume production.
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