Source: http://www.google.fr/patents/US20050156614
Timestamp: 2017-12-11 19:26:02
Document Index: 102020177

Matched Legal Cases: ['art 41', 'art 46', 'art 49', 'arts 46', 'art 46', 'art 47', 'art 48', 'art 49', 'arts 46', 'arts 46', 'arts 46', 'art 41', 'art 49', 'art 41', 'art 57', 'arts 46', 'arts 46', 'arts 46', 'art 49', 'art 49', 'art 58', 'art 58', 'art 1', 'art 2', 'art 3', 'art 4', 'art 5', 'art 73', 'art 6', 'art 7', 'art 8', 'arts 46', 'art 9', 'art 1', 'art 10', 'arts 46', 'art 11', 'art 12', 'art 41', 'arts 46', 'art 41', 'art 13', 'art 41', 'arts 46', 'art 85', 'arts 46', 'art 41', 'arts 46', 'art 41', 'art 106', 'art 109', 'arts 106', 'art 106', 'art 107', 'art 108', 'art 109', 'arts 106', 'arts 106', 'arts 106', 'arts 106', 'arts 106', 'arts 106', 'art 57', 'arts 106', 'arts 106', 'art 57', 'art 106', 'art 106', 'art 106', 'art 58', 'art 58', 'art 1', 'art 2', 'art 3', 'art 4', 'art 5', 'art 141', 'art 6', 'art 7', 'art 8', 'art 106', 'art 107', 'art 107', 'art 108', 'art 108', 'art 109', 'arts 106', 'art 9', 'arts 106', 'arts 106']

Brevet US20050156614 - Semiconductor inspection device and method for manufacturing contact probe - Google Brevets
A semiconductor inspection device for inspecting an electronic device is disclosed. The semiconductor inspection device includes a contact probe including a plurality of column parts disposed in continuation, each of the column parts having different height, a conductive layer formed at least on the...http://www.google.fr/patents/US20050156614?utm_source=gb-gplus-shareBrevet US20050156614 - Semiconductor inspection device and method for manufacturing contact probe
Numéro de publication US20050156614 A1
Numéro de demande US 11/036,314
Autre référence de publication DE602005004942D1, DE602005004942T2, EP1555533A1, EP1555533B1, US7061261, US20060130322
Numéro de publication 036314, 11036314, US 2005/0156614 A1, US 2005/156614 A1, US 20050156614 A1, US 20050156614A1, US 2005156614 A1, US 2005156614A1, US-A1-20050156614, US-A1-2005156614, US2005/0156614A1, US2005/156614A1, US20050156614 A1, US20050156614A1, US2005156614 A1, US2005156614A1
Inventeurs Kei Murayama
Cessionnaire d'origine Kei Murayama
Citations de brevets (4), Classifications (13), Événements juridiques (3)
Semiconductor inspection device and method for manufacturing contact probe
US 20050156614 A1
4. A method of manufacturing a contact probe including N column parts disposed in continuation, each of the column parts having different height, the N column parts being supported by a holding part, the method comprising the steps of:
a) forming an N−1th resist film on a portion of the silicon substrate corresponding to a position of the holding part and a portion of the silicon substrate corresponding to a position of an N−1th column part;
b) forming an Nth resist film on the N−1th resist film and a portion of the silicon substrate corresponding to a position of an Nth column part, the Nth resist film having a property different from that of the N−1th resist film;
c) repeating the steps a) and b);
d) etching a predetermined area to a predetermined depth by using the Nth resist film as a mask and then removing the Nth resist film;
e) repeating the step d); and
f) forming a conductive layer at least on the surfaces of the first to Nth column parts.
5. A method of manufacturing a contact probe including first to fourth column parts disposed in continuation, each of the column parts having different height, the first to fourth column parts being supported by a holding part, the method comprising the steps of:
a) forming a first resist film on a portion of a silicon substrate corresponding to the holding part and a portion of the silicon substrate corresponding to a position of the first column part;
b) forming a second resist film on the first resist film and a portion of the silicon substrate corresponding to a position of the second column part, the second resist film having a property different from that of the first resist film;
c) forming a third resist film on the second resist film and a portion of the silicon substrate corresponding to a position of the third column part, the third resist film having a property different from that of the second resist film;
d) forming a fourth resist film on the third resist film and a portion of the silicon substrate corresponding to a position of the fourth column part, the fourth resist film having a property different from that of the third resist film;
e) etching a first area to a first depth by using the fourth resist film as a mask and then removing the fourth resist film;
f) etching a second area to a second depth by using the third resist film as a mask and then removing the third resist film;
g) etching a third area to a third depth by using the second resist film as a mask and then removing the second resist film;
h) etching a fourth area to a fourth depth by using the first resist film as a mask; and
i) forming a conductive layer at least on the surfaces of the first to fourth column parts and filling a through-hole formed by executing step h) with a conductive material.
6. The method as claimed in claim 5, wherein the holding part includes a frame body encompassing the first to fourth column parts, wherein the frame body is integrally formed with at least one of the first to fourth column parts of the contact probe.
FIG. 5 is a cross-sectional view of a semiconductor inspection apparatus shown in FIG. 3 along line A-A of FIG. 3;
FIG. 7 is a cross-sectional view of a configuration shown in FIG. 6 along line C-C of FIG. 6;
FIG. 9 is a cross-sectional view of a configuration shown in FIG. 8 along line C-C of FIG. 8;
FIG. 11 is a cross-sectional view of a configuration shown in FIG. 10 along line C-C of FIG. 10;
FIG. 12 is a cross-sectional view of a configuration shown in FIG. 10 along line D-D of FIG. 10;
FIG. 14 is a cross-sectional view of a configuration shown in FIG. 13 along line C-C of FIG. 13;
FIG. 15 is a cross-sectional view of a configuration shown in FIG. 13 along line E-E of FIG. 13;
FIG. 17 is a cross-sectional view of a configuration shown in FIG. 16 along line C-C of FIG. 16;
FIG. 18 is a cross-sectional view of a configuration shown in FIG. 16 along line E-E of FIG. 16;
FIG. 20 is a cross-sectional view of a configuration shown in FIG. 19 along line C-C of FIG. 19;
FIG. 21 is a cross-sectional view of a configuration shown in FIG. 19 along line E-E of FIG. 19;
FIG. 23 is a cross-sectional view of a configuration shown in FIG. 22 along line C-C of FIG. 22;
FIG. 24 is a cross-sectional view of a configuration shown in FIG. 22 along line E-E of FIG. 22;
FIG. 26 is a cross-sectional view of a configuration shown in FIG. 25 along line C-C of FIG. 25;
FIG. 27 is a cross-sectional view of a configuration shown in FIG. 25 along line E-E of FIG. 25;
FIG. 29 is a cross-sectional view of a configuration shown in FIG. 28 along line A-A of FIG. 28;
FIG. 33 is a cross-sectional view of a configuration shown in FIG. 31 along line A-A of FIG. 31;
FIG. 35 is a cross-sectional view of a configuration shown in FIG. 34 along line A-A of FIG. 34;
FIG. 38 is a cross-sectional view of a configuration shown in FIG. 37 along line A-A of FIG. 37;
FIG. 40 is a cross-sectional view of a configuration shown in FIG. 39 along line A-A of FIG. 39;
FIG. 42 is a cross-sectional view of a configuration shown in FIG. 41 along line C-C of FIG. 41;
FIG. 43 is a cross-sectional view of a configuration shown in FIG. 41 along line E-E of FIG. 41;
FIG. 46 is a cross-sectional view of a semiconductor inspection device along line I-I of FIG. 44;
FIG. 48 is a cross-sectional view of a configuration shown in FIG. 47 along line I-I of FIG. 47;
FIG. 50 is a cross-sectional view of a configuration shown in FIG. 49 along line I-I of FIG. 49;
FIG. 51 is a cross-sectional view of a configuration shown in FIG. 49 along line J-J of FIG. 49;
FIG. 53 is a cross-sectional view of a configuration shown in FIG. 52 along line I-I of FIG. 52;
FIG. 54 is a cross-sectional view of a configuration shown in FIG. 52 along line J-J of FIG. 52;
FIG. 56 is a cross-sectional view of a configuration shown in FIG. 55 along line I-I of FIG. 55;
FIG. 57 is a cross-sectional view of a configuration shown in FIG. 55 along line J-J of FIG. 55;
FIG. 59 is a cross-sectional view of a configuration shown in FIG. 58 along line I-I of FIG. 58;
FIG. 60 is a cross-sectional view of a configuration shown in FIG. 58 along line J-J of FIG. 58;
FIG. 62 is a cross-sectional view of a configuration shown in FIG. 61 along line I-I of FIG. 61;
FIG. 63 is a cross-sectional view of a configuration shown in FIG. 61 along line J-J of FIG. 61;
FIG. 65 is a cross-sectional view of a configuration shown in FIG. 64 along line I-I of FIG. 64;
FIG. 66 is a cross-sectional view of a configuration shown in FIG. 64 along line J-J of FIG. 64;
FIG. 68 is a cross-sectional view of a configuration shown in FIG. 67 along line I-I of FIG. 67;
FIG. 69 is a cross-sectional view of a configuration shown in FIG. 67 along line J-J of FIG. 67;
FIG. 71 is a cross-sectional view of a configuration shown in FIG. 70 along line I-I of FIG. 70; and
FIG. 72 is a cross-sectional view of a configuration shown in FIG. 70 along line J-J of FIG. 70.
First, a semiconductor inspection device including a contact probe according to a first embodiment of the present invention is described with reference to FIG. 3 to FIG. 5. FIG. 3 is a plan view showing the semiconductor inspection device according to the first embodiment of the present invention, FIG. 4 is a perspective view of a contact probe shown in FIG. 3, and FIG. 5 is a cross-sectional view of the semiconductor inspection device along line A-A of FIG. 3. It is to be noted that the arrow direction Z-Z in FIG. 4 indicates a vertical direction. Numeral 60B shown in FIG. 5 indicates a back face of a contact probe 45 and a holding part 41 (hereinafter referred to as “rear face 60B”).
The contact probe 45 mainly includes plural column parts (first column part 46 to fourth column part 49), a conductive layer (conductive metal layer) 52, and a through-hole electrode 55. The first-fourth column parts 46-49, having different height, are disposed in continuation, in which the first column part 46 is the most highest column part, the second column part 47 is the second highest column part, the third column part 48 is the third highest column part, and the fourth column part 49 is the fourth highest column part. Furthermore, the first-fourth column parts 46-49 each have a bottom face part (rear face 60B) which shares a same plane.
In a plan view of the first-fourth column parts 46-49 (See FIG. 3), the first-fourth column parts 46-49 are arranged forming a spiral-like shape. The contact probe 45 is supported in a cantilever manner by the holding part 41 via the fourth column part 49.
Thus structured, the contact probe 45 is able to attain a spring-like property with respect to the frame body-shaped holding part 41. Accordingly, when the contact probe 45 is contacted to a terminal part 57 of an electronic device 56, plastic deformation of the contact probe 45 can be reduced, thereby extending the lifetime of the contact probe 45. Furthermore, since the first-fourth column parts 46-49 support each other by arranging the first-fourth column parts 46-49 in the spiral-like manner, the strength of the contact probe 45 can be increased.
The conductive layer 52 is formed at least on the surfaces of the first-fourth column parts 46-49. The fourth column part 49, which is lowest in height, includes the through-hole electrode 55 being formed in a through-hole penetrating the fourth column part 49 in direction Z-Z. The through-hole electrode 55 is formed simultaneously with the forming of the conductive layer 52. The through-hole electrode 55 serves to electrically connect the rear face 60B and the conductive layer 52. The measuring part 58 is electrically connected to the through-hole electrode 55. The measuring part 58 is used in inspecting an electronic device 56 based on input-output signals from the electronic device 56. As for the electronic device 56 being the target for inspection, other semiconductor elements may be employed as alternatives of the CSP or the BGA.
Next, a method of manufacturing the semiconductor inspection device 40 including the contact probe 45 according to the first embodiment of the present invention is described with reference to FIGS. 6-40. FIG. 6 is a plan view (part 1) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 7 is a cross-sectional view of the configuration shown in FIG. 6 along line C-C of FIG. 6.
FIG. 8 is a plan view (part 2) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 9 is a cross-sectional view of the configuration shown in FIG. 8 along line C-C of FIG. 6.
FIG. 10 is a plan view (part 3) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 11 is a cross-sectional view of the configuration shown in FIG. 10 along line C-C of FIG. 10. FIG. 12 is a cross-sectional view of the configuration shown in FIG. 10 along line D-D of FIG. 10.
FIG. 13 is a plan view (part 4) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 14 is a cross-sectional view of the configuration shown in FIG. 13 along line C-C of FIG. 6. FIG. 15 is a cross-sectional view of the configuration shown in FIG. 13 along line E-E of FIG. 13.
FIG. 16 is a plan view (part 5) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 17 is a cross-sectional view of the configuration shown in FIG. 16 along line C-C of FIG. 16. FIG. 18 is a cross-sectional view of the configuration shown in FIG. 16 along line E-E of FIG. 16. It is to be noted that H1 in FIGS. 17 and 18 indicates the depth of a groove part 73 formed by a first etching process (hereinafter referred to depth H1).
FIG. 19 is a plan view (part 6) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 20 is a cross-sectional view of the configuration shown in FIG. 19 along line C-C of FIG. 19. FIG. 21 is a cross-sectional view of the configuration shown in FIG. 19 along line E-E of FIG. 19. It is to be noted that H2 in FIGS. 20 and 21 indicates an etching depth formed by a second etching process (hereinafter referred to depth H2).
FIG. 22 is a plan view (part 7) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 23 is a cross-sectional view of the configuration shown in FIG. 22 along line C-C of FIG. 22. FIG. 24 is a cross-sectional view of the configuration shown in FIG. 22 along line E-E of FIG. 22. It is to be noted that H3 in FIGS. 23 and 24 indicates an etching amount of a third etching process (etching depth, hereinafter referred to as “depth H3”).
FIG. 25 is a plan view (part 8) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 26 is a cross-sectional view of the configuration shown in FIG. 25 along line C-C of FIG. 25. FIG. 27 is a cross-sectional view of the configuration shown in FIG. 25 along line E-E of FIG. 25. It is to be noted that H4 in FIGS. 26 and 27 indicates an etching amount of a fourth etching process (etching depth, hereinafter referred to as “depth H4”).
It is to be noted that the depths H1-H4 may be formed satisfying a relation of H1=H2=H3=H4, or may be formed having different depths, respectively. Furthermore, in a case where the depths H1-H4 satisfy the relation of H1=H2=H3=H4, H1 may be set to, for example, 50 μm. Furthermore, the widths of the first-fourth column parts 46-49 may be formed, for example, in sizes ranging approximately between 15-50 μm.
FIG. 28 is a plan view (part 9) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 29 is a cross-sectional view of the configuration shown in FIG. 28 along line A-A of FIG. 28. FIG. 30 is a cross-sectional view (part 1) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention.
FIG. 31 is a plan view (part 10) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 32 is a perspective view of the first-fourth column parts 46-49 formed in an area G shown in FIG. 31. FIG. 33 is a cross-sectional view of the configuration shown in FIG. 31 along line A-A of FIG. 31. Next, as shown in FIGS. 31 to 33, the resist film 91 is removed.
FIG. 34 is a plan view (part 11) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 35 is a cross-sectional view of the configuration shown in FIG. 34 along line A-A of FIG. 34. Next, as shown in FIGS. 34 and 35, a seed layer 95 used when forming a plating film on the configuration shown in FIG. 33 and inside the through-hole 94. The seed layer 95 may be formed with, for example, a sputter method or a CVD method. For example, a Ti film, a W film, or a Cr film may be employed for the seed layer 95.
FIG. 37 is a plan view (part 12) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 38 is a cross-sectional view of the configuration shown in FIG. 37 along line A-A of FIG. 37. As shown in FIGS. 37 and 38, electricity is supplied from the seed layer 95 adhered to the rear face 60B of the contact probe 45 and the holding part 41, and then a plating process is performed to form a plating film 98 at the upper and side faces of the first-fourth column parts 46-49. Accordingly, the through-hole electrode 55 including the seed layer 95 and the plating film 98 is formed inside the through-hole 94, and the conductive layer 52 including the seed layer 95 and the plating film 98 is formed on the contact probe 45 and the holding part 41. For example, a film including a Ni alloy, Cu, and/or gold may be employed as the plating film 98.
FIG. 39 is a plan view (part 13) showing a process of the manufacture method of the semiconductor inspection device according to the first embodiment of the present invention. FIG. 40 is a cross-sectional view of the configuration shown in FIG. 39 along line A-A of FIG. 39. Next, as shown in FIGS. 39 and 40, the seed layers 95 and 95 and the plating film 98 (conductive layer 52) except for those formed on the surface of the contact probe 45 and the through-hole electrode 55 are removed, thereby completing the manufacturing of the semiconductor inspection device 40 including the contact probe 45 according to the first embodiment of the present invention.
Next, a method of manufacturing a semiconductor inspection device including a contact probe according to a second embodiment of the present invention is described with reference to FIG. 41 to FIG. 43. FIG. 41 is a plan view showing the semiconductor inspection device according to the second embodiment of the present invention, FIG. 42 is a cross-sectional view of the configuration shown in FIG. 41 along line C-C of FIG. 41. FIG. 43 is a cross-sectional view of the configuration shown in FIG. 41 along line E-E of FIG. 41. It is to be noted that the method of manufacturing the semiconductor inspection device including the contact probe according to the second embodiment of the present invention is a modified example of the method of manufacturing the semiconductor inspection device 40 including the contact probe 45 according to the first embodiment of the present invention. Therefore, in FIGS. 41 to 43, like components are denoted by like numerals as of FIGS. 25 to 27.
In the second embodiment of the present invention, by performing the fourth etching process, a plate member 87 having a thickness H5 and the holding part 41 are formed in addition to the formation of the first-fourth column parts 46-49. Furthermore, a groove part 85 is formed between the first-fourth column parts 46-49 and the holding part 41. After the fourth etching process, the plate member 87 is removed by polishing or etching. After the plate member 87 is removed, the conductive layer 52 and the through-hole electrode 55 are formed by executing the above-described processes illustrated with FIGS. 28-40, thereby completing the manufacturing of the semiconductor inspection device 40.
By allowing the plate member 87, which supports the bottom face of the first-fourth column parts 46-49 and the bottom face of the holding part 41, to remain after the fourth etching process, the strength of the semiconductor inspection device 40 can be maintained when the semiconductor inspection device 40 is transported to or from processing apparatuses, such as a photolithography apparatus or an etching apparatus, during the manufacture processes.
Next, a semiconductor inspection device including a contact probe according to a third embodiment of the present invention is described with reference to FIG. 44 to FIG. 46. FIG. 44 is a plan view showing the semiconductor inspection device according to the third embodiment of the present invention, FIG. 45 is a perspective view of a contact probe shown in FIG. 44, and FIG. 46 is a cross-sectional view of the semiconductor inspection device along line I-I of FIG. 44. It is to be noted that the arrow direction Z-Z in FIG. 45 indicates a vertical direction.
The contact probe 105 includes plural column parts (first column part 106 to fourth column part 109), a conductive layer (conductive metal layer) 114, and a through-hole electrode 111. The first-fourth column parts 106-109, having different height, are disposed in continuation, in which the first column part 106 is the most highest column part, the second column part 107 is the second highest column part, the third column part 108 is the third highest column part, and the fourth column part 109 is the fourth highest column part. In a plan view of the first-fourth column parts 106-109 (See FIG. 44), the first-fourth column parts 106-109 are arranged forming a spiral-like shape. Furthermore, the first-fourth column parts 106-109 each have bottom face parts 106A-109A which share a same plane.
The bottom face parts 106A-109A of the first-fourth column parts 106-109 are respectively formed with the conductive metal layer 114 for electrically connecting with the terminal part 57 of the electronic device 56. By disposing the bottom face parts 106A-109A of the first-fourth column parts 106-109 on a same plane, a large area can be obtained for electrically connecting with the terminal part 57 of the electronic device 56. Accordingly, the contact probe 105 and the electronic device 56 can be electrically connected with satisfactory precision.
The first column part 106 includes the through-hole electrode 111 being formed in a through-hole penetrating the first column part 106 in direction Z-Z. The through-hole electrode 111 serves to electrically connect a surface part of the first column part 106 and the conductive layer 114. The through-hole electrode 111 is formed simultaneously with the forming of the conductive layer 114. The measuring part 58 is electrically connected to the through-hole electrode 111. The measuring part 58 is used in inspecting the electronic device 56 based on input-output signals from the electronic device 56.
Next, a method of manufacturing the semiconductor inspection device 100 including the contact probe 105 according to the third embodiment of the present invention is described with reference to FIGS. 47-72. FIG. 47 is a plan view (part 1) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 48 is a cross-sectional view of the configuration shown in FIG. 47 along line I-I of FIG. 47.
FIG. 49 is a plan view (part 2) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 50 is a cross-sectional view of the configuration shown in FIG. 49 along line I-I of FIG. 49. FIG. 51 is a cross-sectional view of the configuration shown in FIG. 49 along line J-J of FIG. 49.
FIG. 52 is a plan view (part 3) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 53 is a cross-sectional view of the configuration shown in FIG. 52 along line I-I of FIG. 52. FIG. 54 is a cross-sectional view of the configuration shown in FIG. 52 along line J-J of FIG. 52.
FIG. 55 is a plan view (part 4) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 56 is a cross-sectional view of the configuration shown in FIG. 55 along line I-I of FIG. 55. FIG. 57 is a cross-sectional view of the configuration shown in FIG. 55 along line J-J of FIG. 55.
FIG. 58 is a plan view (part 5) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 59 is a cross-sectional view of the configuration shown in FIG. 58 along line I-I of FIG. 58. FIG. 60 is a cross-sectional view of the configuration shown in FIG. 58 along line J-J of FIG. 58. It is to be noted that L1 in FIGS. 58 to 60 indicates the depth of a groove part 141 formed by a first etching process (etching depth, hereinafter referred to as depth L1).
FIG. 61 is a plan view (part 6) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 62 is a cross-sectional view of the configuration shown in FIG. 61 along line I-I of FIG. 61. FIG. 63 is a cross-sectional view of the configuration shown in FIG. 61 along line J-J of FIG. 61. It is to be noted that L2 in FIGS. 61 to 63 indicates an etching amount depth formed by a second etching process (etching depth, hereinafter referred to as depth L2).
FIG. 64 is a plan view (part 7) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 65 is a cross-sectional view of the configuration shown in FIG. 64 along line I-I of FIG. 64. FIG. 66 is a cross-sectional view of the configuration shown in FIG. 64 along line J-J of FIG. 64. It is to be noted that L3 in FIGS. 64 to 66 indicates an etching amount of a third etching process (etching depth, hereinafter referred to as “depth L3”).
FIG. 67 is a plan view (part 8) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 68 is a cross-sectional view of the configuration shown in FIG. 67 along line I-I of FIG. 67. FIG. 69 is a cross-sectional view of the configuration shown in FIG. 67 along line J-J of FIG. 67. It is to be noted that L4 in FIGS. 67 to 69 indicates an etching amount of a fourth etching process (etching depth, hereinafter referred to as “depth L4”).
Accordingly, the step having the depth L4 is formed between the first column part 106 and the second column part 107, the step having the depth L3 is formed between the second column part 107 and the third column part 108, and the step having the depth L2 is formed between the third column part 108 and the fourth column part 109. It is to be noted that the depths L1-L4 may be formed satisfying a relation of L1=L2=L3=L4, or may be formed having different depths, respectively. Furthermore, in a case where the depths L1-L4 satisfy the relation of L1=L2=L3=L4, L1 may be set to, for example, 50 μm. Furthermore, the widths of the first-fourth column parts 106-109 may be formed, for example, in sizes ranging approximately between 15-50 μm.
FIG. 70 is a plan view (part 9) showing a process of the manufacture method of the semiconductor inspection device according to the third embodiment of the present invention. FIG. 71 is a cross-sectional view of the configuration shown in FIG. 70 along line I-I of FIG. 70. FIG. 72 is a cross-sectional view of the configuration shown in FIG. 70 along line J-J of FIG. 70.
Next, as shown in FIGS. 70 to 72, after the first resist film 123 is removed, the conductive metal layer 114 including a seed layer 126 and a metal plating film 127 is formed on the bottom face parts 106A-109A of the first-fourth column parts 106-109, and the through-hole electrode 111 including the seed layer 126 and the metal plating film 127 is formed in the through-hole 125. For example, a Ti film, a W film, or a Cr film may be employed as the seed layer 126. Furthermore, a film including, for example, a Ni alloy, Cu, and/or gold may be employed as the plating film 127. It is to be noted that, since the processes for forming the conductive metal layer 114 and the through-hole 111 are the same as that of the first embodiment, further description thereof is omitted.
US6359455 * 23 févr. 2000 19 mars 2002 Tokyo Electron Limited Probing card
Classification internationale G01R31/28, G01R1/067, G01R31/26, H01L21/00, G01R1/04
Classification coopérative Y10T29/49165, Y10T29/49155, G01R31/2886, H01L21/67288, G01R1/06716
Classification européenne H01L21/67S8G, G01R1/067C
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MURAYAMA, KEI;REEL/FRAME:016198/0118